[gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Alexander Kapshuk]

Howdy,

Just compiled the new kernel [3.10.7], was about to edit my
/boot/grub/grub.conf, and found it missing:
box0 boot # pwd
/boot
box0 boot # ls -a
.  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo

What did I miss?

Thanks.

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Canek Peláez Valdés]

On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
<alexander.kapshuk@gmail.com> wrote:
> Howdy,
>
> Just compiled the new kernel [3.10.7], was about to edit my
> /boot/grub/grub.conf, and found it missing:
> box0 boot # pwd
> /boot
> box0 boot # ls -a
> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>
> What did I miss?

Do you have /boot in a separated partition? Did you mounted it?

Nothing should touch /boot, AFAIK.

Regards.
-- 
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Alexander Kapshuk]

On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
> <alexander.kapshuk@gmail.com> wrote:
>> Howdy,
>>
>> Just compiled the new kernel [3.10.7], was about to edit my
>> /boot/grub/grub.conf, and found it missing:
>> box0 boot # pwd
>> /boot
>> box0 boot # ls -a
>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>
>> What did I miss?
> Do you have /boot in a separated partition? Did you mounted it?
>
> Nothing should touch /boot, AFAIK.
>
> Regards.
I do have '/boot' on a separate partition. If I understand it correctly,
'/boot' gets mounted every time at system start-up, based on
'/etc/fstab', does it not?

box0 boot # cat /etc/fstab
<snip>
/dev/sda1        /boot        ext2        default,noatime    0 2
/dev/sda2        none        swap        sw        0 0
/dev/sda3        /        ext4        noatime        0 1
/dev/sda5        /home        ext4        noatime            0 2
/dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0


box0 boot # mount|grep /dev/sda
/dev/sda3 on / type ext4 (rw,noatime,data=ordered)
/dev/sda5 on /home type ext4 (rw,noatime)

box0 boot # fdisk -l /dev/sda

Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048       67583       32768   83  Linux
/dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
/dev/sda3         1116160    43059199    20971520   83  Linux
/dev/sda4        43059200   488397167   222668984    5  Extended
/dev/sda5        43061248   488397167   222667960   83  Linux

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Canek Peláez Valdés]

On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
<alexander.kapshuk@gmail.com> wrote:
> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>> <alexander.kapshuk@gmail.com> wrote:
>>> Howdy,
>>>
>>> Just compiled the new kernel [3.10.7], was about to edit my
>>> /boot/grub/grub.conf, and found it missing:
>>> box0 boot # pwd
>>> /boot
>>> box0 boot # ls -a
>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>
>>> What did I miss?
>> Do you have /boot in a separated partition? Did you mounted it?
>>
>> Nothing should touch /boot, AFAIK.
>>
>> Regards.
> I do have '/boot' on a separate partition. If I understand it correctly,
> '/boot' gets mounted every time at system start-up, based on
> '/etc/fstab', does it not?

By the contents of your fstab, it should...

> box0 boot # cat /etc/fstab
> <snip>
> /dev/sda1        /boot        ext2        default,noatime    0 2
> /dev/sda2        none        swap        sw        0 0
> /dev/sda3        /        ext4        noatime        0 1
> /dev/sda5        /home        ext4        noatime            0 2
> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>
>
> box0 boot # mount|grep /dev/sda
> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
> /dev/sda5 on /home type ext4 (rw,noatime)

,,,however mount says up there that it's not mounted.

> box0 boot # fdisk -l /dev/sda
>
> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x00000000
>
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *        2048       67583       32768   83  Linux
> /dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
> /dev/sda3         1116160    43059199    20971520   83  Linux
> /dev/sda4        43059200   488397167   222668984    5  Extended
> /dev/sda5        43061248   488397167   222667960   83  Linux

For some reason your /boot partition didn't get mounted. See the boot
logs, and try to mounting by hand. Perhaps the fsck failed or it needs
manual intervention.

Regards.
-- 
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Alexander Kapshuk]

On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
> On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
> <alexander.kapshuk@gmail.com> wrote:
>> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>>> <alexander.kapshuk@gmail.com> wrote:
>>>> Howdy,
>>>>
>>>> Just compiled the new kernel [3.10.7], was about to edit my
>>>> /boot/grub/grub.conf, and found it missing:
>>>> box0 boot # pwd
>>>> /boot
>>>> box0 boot # ls -a
>>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>>
>>>> What did I miss?
>>> Do you have /boot in a separated partition? Did you mounted it?
>>>
>>> Nothing should touch /boot, AFAIK.
>>>
>>> Regards.
>> I do have '/boot' on a separate partition. If I understand it correctly,
>> '/boot' gets mounted every time at system start-up, based on
>> '/etc/fstab', does it not?
> By the contents of your fstab, it should...
>
>> box0 boot # cat /etc/fstab
>> <snip>
>> /dev/sda1        /boot        ext2        default,noatime    0 2
>> /dev/sda2        none        swap        sw        0 0
>> /dev/sda3        /        ext4        noatime        0 1
>> /dev/sda5        /home        ext4        noatime            0 2
>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>
>>
>> box0 boot # mount|grep /dev/sda
>> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
>> /dev/sda5 on /home type ext4 (rw,noatime)
> ,,,however mount says up there that it's not mounted.
>
>> box0 boot # fdisk -l /dev/sda
>>
>> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
>> Units = sectors of 1 * 512 = 512 bytes
>> Sector size (logical/physical): 512 bytes / 512 bytes
>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>> Disk identifier: 0x00000000
>>
>>    Device Boot      Start         End      Blocks   Id  System
>> /dev/sda1   *        2048       67583       32768   83  Linux
>> /dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
>> /dev/sda3         1116160    43059199    20971520   83  Linux
>> /dev/sda4        43059200   488397167   222668984    5  Extended
>> /dev/sda5        43061248   488397167   222667960   83  Linux
> For some reason your /boot partition didn't get mounted. See the boot
> logs, and try to mounting by hand. Perhaps the fsck failed or it needs
> manual intervention.
>
> Regards.
Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
partition instead of the '/boot' one.

box0 ~ # dmesg|grep 'EXT.*fs'
[    2.444214] EXT2-fs (sda3): error: couldn't mount because of
unsupported optional features (240)
[    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
incompatibilities
[    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
mode. Opts: (null)
[    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
[    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
mode. Opts: (null)

Would that suggest a corrupted /boot/grub/grub.conf file?

How did the system boot then?

Thanks.

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Canek Peláez Valdés]

On Sat, Sep 7, 2013 at 1:53 PM, Alexander Kapshuk
<alexander.kapshuk@gmail.com> wrote:
> On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
>> On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
>> <alexander.kapshuk@gmail.com> wrote:
>>> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>>>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>> Howdy,
>>>>>
>>>>> Just compiled the new kernel [3.10.7], was about to edit my
>>>>> /boot/grub/grub.conf, and found it missing:
>>>>> box0 boot # pwd
>>>>> /boot
>>>>> box0 boot # ls -a
>>>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>>>
>>>>> What did I miss?
>>>> Do you have /boot in a separated partition? Did you mounted it?
>>>>
>>>> Nothing should touch /boot, AFAIK.
>>>>
>>>> Regards.
>>> I do have '/boot' on a separate partition. If I understand it correctly,
>>> '/boot' gets mounted every time at system start-up, based on
>>> '/etc/fstab', does it not?
>> By the contents of your fstab, it should...
>>
>>> box0 boot # cat /etc/fstab
>>> <snip>
>>> /dev/sda1        /boot        ext2        default,noatime    0 2
>>> /dev/sda2        none        swap        sw        0 0
>>> /dev/sda3        /        ext4        noatime        0 1
>>> /dev/sda5        /home        ext4        noatime            0 2
>>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>
>>>
>>> box0 boot # mount|grep /dev/sda
>>> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
>>> /dev/sda5 on /home type ext4 (rw,noatime)
>> ,,,however mount says up there that it's not mounted.
>>
>>> box0 boot # fdisk -l /dev/sda
>>>
>>> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
>>> Units = sectors of 1 * 512 = 512 bytes
>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>> Disk identifier: 0x00000000
>>>
>>>    Device Boot      Start         End      Blocks   Id  System
>>> /dev/sda1   *        2048       67583       32768   83  Linux
>>> /dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
>>> /dev/sda3         1116160    43059199    20971520   83  Linux
>>> /dev/sda4        43059200   488397167   222668984    5  Extended
>>> /dev/sda5        43061248   488397167   222667960   83  Linux
>> For some reason your /boot partition didn't get mounted. See the boot
>> logs, and try to mounting by hand. Perhaps the fsck failed or it needs
>> manual intervention.
>>
>> Regards.
> Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
> partition instead of the '/boot' one.
>
> box0 ~ # dmesg|grep 'EXT.*fs'
> [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
> unsupported optional features (240)
> [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
> incompatibilities
> [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
> mode. Opts: (null)
> [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
> [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
> mode. Opts: (null)
>
> Would that suggest a corrupted /boot/grub/grub.conf file?

Not necessarily. Can you manually mount /boot and see the contents of
/boot/grub/grub.conf.

> How did the system boot then?

If grub can see the boot partition (and is correctly configured and
installed on the MBR), it can mount the root system without problems
regardless of fstab. Do you use an initramfs?

Regards.
-- 
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Alexander Kapshuk]

On 09/07/2013 10:25 PM, Canek Peláez Valdés wrote:
> On Sat, Sep 7, 2013 at 1:53 PM, Alexander Kapshuk
> <alexander.kapshuk@gmail.com> wrote:
>> On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
>>> On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
>>> <alexander.kapshuk@gmail.com> wrote:
>>>> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>>>>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>>> Howdy,
>>>>>>
>>>>>> Just compiled the new kernel [3.10.7], was about to edit my
>>>>>> /boot/grub/grub.conf, and found it missing:
>>>>>> box0 boot # pwd
>>>>>> /boot
>>>>>> box0 boot # ls -a
>>>>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>>>>
>>>>>> What did I miss?
>>>>> Do you have /boot in a separated partition? Did you mounted it?
>>>>>
>>>>> Nothing should touch /boot, AFAIK.
>>>>>
>>>>> Regards.
>>>> I do have '/boot' on a separate partition. If I understand it correctly,
>>>> '/boot' gets mounted every time at system start-up, based on
>>>> '/etc/fstab', does it not?
>>> By the contents of your fstab, it should...
>>>
>>>> box0 boot # cat /etc/fstab
>>>> <snip>
>>>> /dev/sda1        /boot        ext2        default,noatime    0 2
>>>> /dev/sda2        none        swap        sw        0 0
>>>> /dev/sda3        /        ext4        noatime        0 1
>>>> /dev/sda5        /home        ext4        noatime            0 2
>>>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>
>>>>
>>>> box0 boot # mount|grep /dev/sda
>>>> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
>>>> /dev/sda5 on /home type ext4 (rw,noatime)
>>> ,,,however mount says up there that it's not mounted.
>>>
>>>> box0 boot # fdisk -l /dev/sda
>>>>
>>>> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
>>>> Units = sectors of 1 * 512 = 512 bytes
>>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>>> Disk identifier: 0x00000000
>>>>
>>>>    Device Boot      Start         End      Blocks   Id  System
>>>> /dev/sda1   *        2048       67583       32768   83  Linux
>>>> /dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
>>>> /dev/sda3         1116160    43059199    20971520   83  Linux
>>>> /dev/sda4        43059200   488397167   222668984    5  Extended
>>>> /dev/sda5        43061248   488397167   222667960   83  Linux
>>> For some reason your /boot partition didn't get mounted. See the boot
>>> logs, and try to mounting by hand. Perhaps the fsck failed or it needs
>>> manual intervention.
>>>
>>> Regards.
>> Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
>> partition instead of the '/boot' one.
>>
>> box0 ~ # dmesg|grep 'EXT.*fs'
>> [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
>> unsupported optional features (240)
>> [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
>> incompatibilities
>> [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
>> mode. Opts: (null)
>> [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
>> [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
>> mode. Opts: (null)
>>
>> Would that suggest a corrupted /boot/grub/grub.conf file?
> Not necessarily. Can you manually mount /boot and see the contents of
> /boot/grub/grub.conf.
>
>> How did the system boot then?
> If grub can see the boot partition (and is correctly configured and
> installed on the MBR), it can mount the root system without problems
> regardless of fstab. Do you use an initramfs?
>
> Regards.
'mount /boot' fails:
box0 ~ # mount /boot
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail or so

No, I do not use 'initfamfs'.

What do you suggest doing?

Thanks.

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Canek Peláez Valdés]

On Sat, Sep 7, 2013 at 2:30 PM, Alexander Kapshuk
<alexander.kapshuk@gmail.com> wrote:
> On 09/07/2013 10:25 PM, Canek Peláez Valdés wrote:
>> On Sat, Sep 7, 2013 at 1:53 PM, Alexander Kapshuk
>> <alexander.kapshuk@gmail.com> wrote:
>>> On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
>>>> On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>>>>>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>>>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>>>> Howdy,
>>>>>>>
>>>>>>> Just compiled the new kernel [3.10.7], was about to edit my
>>>>>>> /boot/grub/grub.conf, and found it missing:
>>>>>>> box0 boot # pwd
>>>>>>> /boot
>>>>>>> box0 boot # ls -a
>>>>>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>>>>>
>>>>>>> What did I miss?
>>>>>> Do you have /boot in a separated partition? Did you mounted it?
>>>>>>
>>>>>> Nothing should touch /boot, AFAIK.
>>>>>>
>>>>>> Regards.
>>>>> I do have '/boot' on a separate partition. If I understand it correctly,
>>>>> '/boot' gets mounted every time at system start-up, based on
>>>>> '/etc/fstab', does it not?
>>>> By the contents of your fstab, it should...
>>>>
>>>>> box0 boot # cat /etc/fstab
>>>>> <snip>
>>>>> /dev/sda1        /boot        ext2        default,noatime    0 2
>>>>> /dev/sda2        none        swap        sw        0 0
>>>>> /dev/sda3        /        ext4        noatime        0 1
>>>>> /dev/sda5        /home        ext4        noatime            0 2
>>>>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>>
>>>>>
>>>>> box0 boot # mount|grep /dev/sda
>>>>> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
>>>>> /dev/sda5 on /home type ext4 (rw,noatime)
>>>> ,,,however mount says up there that it's not mounted.
>>>>
>>>>> box0 boot # fdisk -l /dev/sda
>>>>>
>>>>> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
>>>>> Units = sectors of 1 * 512 = 512 bytes
>>>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>>>> Disk identifier: 0x00000000
>>>>>
>>>>>    Device Boot      Start         End      Blocks   Id  System
>>>>> /dev/sda1   *        2048       67583       32768   83  Linux
>>>>> /dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
>>>>> /dev/sda3         1116160    43059199    20971520   83  Linux
>>>>> /dev/sda4        43059200   488397167   222668984    5  Extended
>>>>> /dev/sda5        43061248   488397167   222667960   83  Linux
>>>> For some reason your /boot partition didn't get mounted. See the boot
>>>> logs, and try to mounting by hand. Perhaps the fsck failed or it needs
>>>> manual intervention.
>>>>
>>>> Regards.
>>> Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
>>> partition instead of the '/boot' one.
>>>
>>> box0 ~ # dmesg|grep 'EXT.*fs'
>>> [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
>>> unsupported optional features (240)
>>> [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
>>> incompatibilities
>>> [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
>>> mode. Opts: (null)
>>> [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
>>> [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
>>> mode. Opts: (null)
>>>
>>> Would that suggest a corrupted /boot/grub/grub.conf file?
>> Not necessarily. Can you manually mount /boot and see the contents of
>> /boot/grub/grub.conf.
>>
>>> How did the system boot then?
>> If grub can see the boot partition (and is correctly configured and
>> installed on the MBR), it can mount the root system without problems
>> regardless of fstab. Do you use an initramfs?
>>
>> Regards.
> 'mount /boot' fails:
> box0 ~ # mount /boot
> mount: wrong fs type, bad option, bad superblock on /dev/sda1,
>        missing codepage or helper program, or other error
>        In some cases useful info is found in syslog - try
>        dmesg | tail or so
>
> No, I do not use 'initfamfs'.
>
> What do you suggest doing?

Mounting it by hand:

mount -t ext2 /dev/sda1 /boot

Regards.
-- 
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Alexander Kapshuk]

On 09/07/2013 10:35 PM, Canek Peláez Valdés wrote:
> On Sat, Sep 7, 2013 at 2:30 PM, Alexander Kapshuk
> <alexander.kapshuk@gmail.com> wrote:
>> On 09/07/2013 10:25 PM, Canek Peláez Valdés wrote:
>>> On Sat, Sep 7, 2013 at 1:53 PM, Alexander Kapshuk
>>> <alexander.kapshuk@gmail.com> wrote:
>>>> On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
>>>>> On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
>>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>>> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>>>>>>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>>>>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>>>>> Howdy,
>>>>>>>>
>>>>>>>> Just compiled the new kernel [3.10.7], was about to edit my
>>>>>>>> /boot/grub/grub.conf, and found it missing:
>>>>>>>> box0 boot # pwd
>>>>>>>> /boot
>>>>>>>> box0 boot # ls -a
>>>>>>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>>>>>>
>>>>>>>> What did I miss?
>>>>>>> Do you have /boot in a separated partition? Did you mounted it?
>>>>>>>
>>>>>>> Nothing should touch /boot, AFAIK.
>>>>>>>
>>>>>>> Regards.
>>>>>> I do have '/boot' on a separate partition. If I understand it correctly,
>>>>>> '/boot' gets mounted every time at system start-up, based on
>>>>>> '/etc/fstab', does it not?
>>>>> By the contents of your fstab, it should...
>>>>>
>>>>>> box0 boot # cat /etc/fstab
>>>>>> <snip>
>>>>>> /dev/sda1        /boot        ext2        default,noatime    0 2
>>>>>> /dev/sda2        none        swap        sw        0 0
>>>>>> /dev/sda3        /        ext4        noatime        0 1
>>>>>> /dev/sda5        /home        ext4        noatime            0 2
>>>>>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>>>
>>>>>>
>>>>>> box0 boot # mount|grep /dev/sda
>>>>>> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
>>>>>> /dev/sda5 on /home type ext4 (rw,noatime)
>>>>> ,,,however mount says up there that it's not mounted.
>>>>>
>>>>>> box0 boot # fdisk -l /dev/sda
>>>>>>
>>>>>> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
>>>>>> Units = sectors of 1 * 512 = 512 bytes
>>>>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>>>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>>>>> Disk identifier: 0x00000000
>>>>>>
>>>>>>    Device Boot      Start         End      Blocks   Id  System
>>>>>> /dev/sda1   *        2048       67583       32768   83  Linux
>>>>>> /dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
>>>>>> /dev/sda3         1116160    43059199    20971520   83  Linux
>>>>>> /dev/sda4        43059200   488397167   222668984    5  Extended
>>>>>> /dev/sda5        43061248   488397167   222667960   83  Linux
>>>>> For some reason your /boot partition didn't get mounted. See the boot
>>>>> logs, and try to mounting by hand. Perhaps the fsck failed or it needs
>>>>> manual intervention.
>>>>>
>>>>> Regards.
>>>> Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
>>>> partition instead of the '/boot' one.
>>>>
>>>> box0 ~ # dmesg|grep 'EXT.*fs'
>>>> [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
>>>> unsupported optional features (240)
>>>> [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
>>>> incompatibilities
>>>> [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
>>>> mode. Opts: (null)
>>>> [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
>>>> [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
>>>> mode. Opts: (null)
>>>>
>>>> Would that suggest a corrupted /boot/grub/grub.conf file?
>>> Not necessarily. Can you manually mount /boot and see the contents of
>>> /boot/grub/grub.conf.
>>>
>>>> How did the system boot then?
>>> If grub can see the boot partition (and is correctly configured and
>>> installed on the MBR), it can mount the root system without problems
>>> regardless of fstab. Do you use an initramfs?
>>>
>>> Regards.
>> 'mount /boot' fails:
>> box0 ~ # mount /boot
>> mount: wrong fs type, bad option, bad superblock on /dev/sda1,
>>        missing codepage or helper program, or other error
>>        In some cases useful info is found in syslog - try
>>        dmesg | tail or so
>>
>> No, I do not use 'initfamfs'.
>>
>> What do you suggest doing?
> Mounting it by hand:
>
> mount -t ext2 /dev/sda1 /boot
>
> Regards.
That did the trick. Thanks very much.

Here's my /boot/grub/grub.conf:
box0 linux # cat /boot/grub/grub.conf
# This is a sample grub.conf for use with Genkernel, per the Gentoo handbook
#
http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&chap=10#doc_chap2
# If you are not using Genkernel and you need help creating this file, you
# should consult the handbook. Alternatively, consult the
grub.conf.sample that
# is included with the Grub documentation.

default 0
timeout 30
splashimage=(hd0,0)/boot/grub/splash.xpm.gz

title Gentoo Linux 3.8.13
root (hd0,0)
kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3
#initrd /boot/initramfs-genkernel-x86-2.6.24-gentoo-r5

title Gentoo Linux 3.8.13 (rescue)
root (hd0,0)
kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3 init=/bin/bb
# vim:ft=conf:

Is there anything that suggests as to why the /boot partition failed to
mount at system start-up?

Thanks.

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Canek Peláez Valdés]

On Sat, Sep 7, 2013 at 2:41 PM, Alexander Kapshuk
<alexander.kapshuk@gmail.com> wrote:
> On 09/07/2013 10:35 PM, Canek Peláez Valdés wrote:
>> On Sat, Sep 7, 2013 at 2:30 PM, Alexander Kapshuk
>> <alexander.kapshuk@gmail.com> wrote:
>>> On 09/07/2013 10:25 PM, Canek Peláez Valdés wrote:
>>>> On Sat, Sep 7, 2013 at 1:53 PM, Alexander Kapshuk
>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>> On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
>>>>>> On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
>>>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>>>> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>>>>>>>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>>>>>>>> <alexander.kapshuk@gmail.com> wrote:
>>>>>>>>> Howdy,
>>>>>>>>>
>>>>>>>>> Just compiled the new kernel [3.10.7], was about to edit my
>>>>>>>>> /boot/grub/grub.conf, and found it missing:
>>>>>>>>> box0 boot # pwd
>>>>>>>>> /boot
>>>>>>>>> box0 boot # ls -a
>>>>>>>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>>>>>>>
>>>>>>>>> What did I miss?
>>>>>>>> Do you have /boot in a separated partition? Did you mounted it?
>>>>>>>>
>>>>>>>> Nothing should touch /boot, AFAIK.
>>>>>>>>
>>>>>>>> Regards.
>>>>>>> I do have '/boot' on a separate partition. If I understand it correctly,
>>>>>>> '/boot' gets mounted every time at system start-up, based on
>>>>>>> '/etc/fstab', does it not?
>>>>>> By the contents of your fstab, it should...
>>>>>>
>>>>>>> box0 boot # cat /etc/fstab
>>>>>>> <snip>
>>>>>>> /dev/sda1        /boot        ext2        default,noatime    0 2
>>>>>>> /dev/sda2        none        swap        sw        0 0
>>>>>>> /dev/sda3        /        ext4        noatime        0 1
>>>>>>> /dev/sda5        /home        ext4        noatime            0 2
>>>>>>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>>>>
>>>>>>>
>>>>>>> box0 boot # mount|grep /dev/sda
>>>>>>> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
>>>>>>> /dev/sda5 on /home type ext4 (rw,noatime)
>>>>>> ,,,however mount says up there that it's not mounted.
>>>>>>
>>>>>>> box0 boot # fdisk -l /dev/sda
>>>>>>>
>>>>>>> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
>>>>>>> Units = sectors of 1 * 512 = 512 bytes
>>>>>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>>>>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>>>>>> Disk identifier: 0x00000000
>>>>>>>
>>>>>>>    Device Boot      Start         End      Blocks   Id  System
>>>>>>> /dev/sda1   *        2048       67583       32768   83  Linux
>>>>>>> /dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
>>>>>>> /dev/sda3         1116160    43059199    20971520   83  Linux
>>>>>>> /dev/sda4        43059200   488397167   222668984    5  Extended
>>>>>>> /dev/sda5        43061248   488397167   222667960   83  Linux
>>>>>> For some reason your /boot partition didn't get mounted. See the boot
>>>>>> logs, and try to mounting by hand. Perhaps the fsck failed or it needs
>>>>>> manual intervention.
>>>>>>
>>>>>> Regards.
>>>>> Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
>>>>> partition instead of the '/boot' one.
>>>>>
>>>>> box0 ~ # dmesg|grep 'EXT.*fs'
>>>>> [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
>>>>> unsupported optional features (240)
>>>>> [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
>>>>> incompatibilities
>>>>> [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
>>>>> mode. Opts: (null)
>>>>> [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
>>>>> [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
>>>>> mode. Opts: (null)
>>>>>
>>>>> Would that suggest a corrupted /boot/grub/grub.conf file?
>>>> Not necessarily. Can you manually mount /boot and see the contents of
>>>> /boot/grub/grub.conf.
>>>>
>>>>> How did the system boot then?
>>>> If grub can see the boot partition (and is correctly configured and
>>>> installed on the MBR), it can mount the root system without problems
>>>> regardless of fstab. Do you use an initramfs?
>>>>
>>>> Regards.
>>> 'mount /boot' fails:
>>> box0 ~ # mount /boot
>>> mount: wrong fs type, bad option, bad superblock on /dev/sda1,
>>>        missing codepage or helper program, or other error
>>>        In some cases useful info is found in syslog - try
>>>        dmesg | tail or so
>>>
>>> No, I do not use 'initfamfs'.
>>>
>>> What do you suggest doing?
>> Mounting it by hand:
>>
>> mount -t ext2 /dev/sda1 /boot
>>
>> Regards.
> That did the trick. Thanks very much.
>
> Here's my /boot/grub/grub.conf:
> box0 linux # cat /boot/grub/grub.conf
> # This is a sample grub.conf for use with Genkernel, per the Gentoo handbook
> #
> http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&chap=10#doc_chap2
> # If you are not using Genkernel and you need help creating this file, you
> # should consult the handbook. Alternatively, consult the
> grub.conf.sample that
> # is included with the Grub documentation.
>
> default 0
> timeout 30
> splashimage=(hd0,0)/boot/grub/splash.xpm.gz
>
> title Gentoo Linux 3.8.13
> root (hd0,0)
> kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3
> #initrd /boot/initramfs-genkernel-x86-2.6.24-gentoo-r5
>
> title Gentoo Linux 3.8.13 (rescue)
> root (hd0,0)
> kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3 init=/bin/bb
> # vim:ft=conf:
>
> Is there anything that suggests as to why the /boot partition failed to
> mount at system start-up?

No, I don't see anything that. However, since you cannot "mount
/boot", but doing it manually works, that means something is wrong
with your fstab. Can I see it again? There is no /boot/etc/fstab,
right? What does /boot/grub/device.map say?

Regards.
-- 
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Alexander Kapshuk]

On 09/07/2013 11:11 PM, Canek Peláez Valdés wrote:
> On Sat, Sep 7, 2013 at 2:41 PM, Alexander Kapshuk
> <alexander.kapshuk@gmail.com>  wrote:
>    
>> On 09/07/2013 10:35 PM, Canek Peláez Valdés wrote:
>>      
>>> On Sat, Sep 7, 2013 at 2:30 PM, Alexander Kapshuk
>>> <alexander.kapshuk@gmail.com>  wrote:
>>>        
>>>> On 09/07/2013 10:25 PM, Canek Peláez Valdés wrote:
>>>>          
>>>>> On Sat, Sep 7, 2013 at 1:53 PM, Alexander Kapshuk
>>>>> <alexander.kapshuk@gmail.com>  wrote:
>>>>>            
>>>>>> On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
>>>>>>              
>>>>>>> On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
>>>>>>> <alexander.kapshuk@gmail.com>  wrote:
>>>>>>>                
>>>>>>>> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>>>>>>>>                  
>>>>>>>>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>>>>>>>>> <alexander.kapshuk@gmail.com>  wrote:
>>>>>>>>>                    
>>>>>>>>>> Howdy,
>>>>>>>>>>
>>>>>>>>>> Just compiled the new kernel [3.10.7], was about to edit my
>>>>>>>>>> /boot/grub/grub.conf, and found it missing:
>>>>>>>>>> box0 boot # pwd
>>>>>>>>>> /boot
>>>>>>>>>> box0 boot # ls -a
>>>>>>>>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>>>>>>>>
>>>>>>>>>> What did I miss?
>>>>>>>>>>                      
>>>>>>>>> Do you have /boot in a separated partition? Did you mounted it?
>>>>>>>>>
>>>>>>>>> Nothing should touch /boot, AFAIK.
>>>>>>>>>
>>>>>>>>> Regards.
>>>>>>>>>                    
>>>>>>>> I do have '/boot' on a separate partition. If I understand it correctly,
>>>>>>>> '/boot' gets mounted every time at system start-up, based on
>>>>>>>> '/etc/fstab', does it not?
>>>>>>>>                  
>>>>>>> By the contents of your fstab, it should...
>>>>>>>
>>>>>>>                
>>>>>>>> box0 boot # cat /etc/fstab
>>>>>>>> <snip>
>>>>>>>> /dev/sda1        /boot        ext2        default,noatime    0 2
>>>>>>>> /dev/sda2        none        swap        sw        0 0
>>>>>>>> /dev/sda3        /        ext4        noatime        0 1
>>>>>>>> /dev/sda5        /home        ext4        noatime            0 2
>>>>>>>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>>>>>
>>>>>>>>
>>>>>>>> box0 boot # mount|grep /dev/sda
>>>>>>>> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
>>>>>>>> /dev/sda5 on /home type ext4 (rw,noatime)
>>>>>>>>                  
>>>>>>> ,,,however mount says up there that it's not mounted.
>>>>>>>
>>>>>>>                
>>>>>>>> box0 boot # fdisk -l /dev/sda
>>>>>>>>
>>>>>>>> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
>>>>>>>> Units = sectors of 1 * 512 = 512 bytes
>>>>>>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>>>>>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>>>>>>> Disk identifier: 0x00000000
>>>>>>>>
>>>>>>>>     Device Boot      Start         End      Blocks   Id  System
>>>>>>>> /dev/sda1   *        2048       67583       32768   83  Linux
>>>>>>>> /dev/sda2           67584     1116159      524288   82  Linux swap / Solaris
>>>>>>>> /dev/sda3         1116160    43059199    20971520   83  Linux
>>>>>>>> /dev/sda4        43059200   488397167   222668984    5  Extended
>>>>>>>> /dev/sda5        43061248   488397167   222667960   83  Linux
>>>>>>>>                  
>>>>>>> For some reason your /boot partition didn't get mounted. See the boot
>>>>>>> logs, and try to mounting by hand. Perhaps the fsck failed or it needs
>>>>>>> manual intervention.
>>>>>>>
>>>>>>> Regards.
>>>>>>>                
>>>>>> Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
>>>>>> partition instead of the '/boot' one.
>>>>>>
>>>>>> box0 ~ # dmesg|grep 'EXT.*fs'
>>>>>> [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
>>>>>> unsupported optional features (240)
>>>>>> [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
>>>>>> incompatibilities
>>>>>> [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
>>>>>> mode. Opts: (null)
>>>>>> [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
>>>>>> [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
>>>>>> mode. Opts: (null)
>>>>>>
>>>>>> Would that suggest a corrupted /boot/grub/grub.conf file?
>>>>>>              
>>>>> Not necessarily. Can you manually mount /boot and see the contents of
>>>>> /boot/grub/grub.conf.
>>>>>
>>>>>            
>>>>>> How did the system boot then?
>>>>>>              
>>>>> If grub can see the boot partition (and is correctly configured and
>>>>> installed on the MBR), it can mount the root system without problems
>>>>> regardless of fstab. Do you use an initramfs?
>>>>>
>>>>> Regards.
>>>>>            
>>>> 'mount /boot' fails:
>>>> box0 ~ # mount /boot
>>>> mount: wrong fs type, bad option, bad superblock on /dev/sda1,
>>>>         missing codepage or helper program, or other error
>>>>         In some cases useful info is found in syslog - try
>>>>         dmesg | tail or so
>>>>
>>>> No, I do not use 'initfamfs'.
>>>>
>>>> What do you suggest doing?
>>>>          
>>> Mounting it by hand:
>>>
>>> mount -t ext2 /dev/sda1 /boot
>>>
>>> Regards.
>>>        
>> That did the trick. Thanks very much.
>>
>> Here's my /boot/grub/grub.conf:
>> box0 linux # cat /boot/grub/grub.conf
>> # This is a sample grub.conf for use with Genkernel, per the Gentoo handbook
>> #
>> http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&chap=10#doc_chap2
>> # If you are not using Genkernel and you need help creating this file, you
>> # should consult the handbook. Alternatively, consult the
>> grub.conf.sample that
>> # is included with the Grub documentation.
>>
>> default 0
>> timeout 30
>> splashimage=(hd0,0)/boot/grub/splash.xpm.gz
>>
>> title Gentoo Linux 3.8.13
>> root (hd0,0)
>> kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3
>> #initrd /boot/initramfs-genkernel-x86-2.6.24-gentoo-r5
>>
>> title Gentoo Linux 3.8.13 (rescue)
>> root (hd0,0)
>> kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3 init=/bin/bb
>> # vim:ft=conf:
>>
>> Is there anything that suggests as to why the /boot partition failed to
>> mount at system start-up?
>>      
> No, I don't see anything that. However, since you cannot "mount
> /boot", but doing it manually works, that means something is wrong
> with your fstab. Can I see it again? There is no /boot/etc/fstab,
> right? What does /boot/grub/device.map say?
>
> Regards.
>    
Getting late. I'll have to chase it up tomorrow. Sorry.

Thanks heaps for your help.

I'll keep yourself and the list posted on the progress made.

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[meino.cramer]

Alexander Kapshuk <alexander.kapshuk@gmail.com> [13-09-07 23:14]:
> On 09/07/2013 11:11 PM, Canek Peláez Valdés wrote:
> >On Sat, Sep 7, 2013 at 2:41 PM, Alexander Kapshuk
> ><alexander.kapshuk@gmail.com>  wrote:
> >   
> >>On 09/07/2013 10:35 PM, Canek Peláez Valdés wrote:
> >>     
> >>>On Sat, Sep 7, 2013 at 2:30 PM, Alexander Kapshuk
> >>><alexander.kapshuk@gmail.com>  wrote:
> >>>       
> >>>>On 09/07/2013 10:25 PM, Canek Peláez Valdés wrote:
> >>>>         
> >>>>>On Sat, Sep 7, 2013 at 1:53 PM, Alexander Kapshuk
> >>>>><alexander.kapshuk@gmail.com>  wrote:
> >>>>>           
> >>>>>>On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
> >>>>>>             
> >>>>>>>On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
> >>>>>>><alexander.kapshuk@gmail.com>  wrote:
> >>>>>>>               
> >>>>>>>>On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
> >>>>>>>>                 
> >>>>>>>>>On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
> >>>>>>>>><alexander.kapshuk@gmail.com>  wrote:
> >>>>>>>>>                   
> >>>>>>>>>>Howdy,
> >>>>>>>>>>
> >>>>>>>>>>Just compiled the new kernel [3.10.7], was about to edit my
> >>>>>>>>>>/boot/grub/grub.conf, and found it missing:
> >>>>>>>>>>box0 boot # pwd
> >>>>>>>>>>/boot
> >>>>>>>>>>box0 boot # ls -a
> >>>>>>>>>>.  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
> >>>>>>>>>>
> >>>>>>>>>>What did I miss?
> >>>>>>>>>>                     
> >>>>>>>>>Do you have /boot in a separated partition? Did you mounted 
> >>>>>>>>>it?
> >>>>>>>>>
> >>>>>>>>>Nothing should touch /boot, AFAIK.
> >>>>>>>>>
> >>>>>>>>>Regards.
> >>>>>>>>>                   
> >>>>>>>>I do have '/boot' on a separate partition. If I understand it 
> >>>>>>>>correctly,
> >>>>>>>>'/boot' gets mounted every time at system start-up, based on
> >>>>>>>>'/etc/fstab', does it not?
> >>>>>>>>                 
> >>>>>>>By the contents of your fstab, it should...
> >>>>>>>
> >>>>>>>               
> >>>>>>>>box0 boot # cat /etc/fstab
> >>>>>>>><snip>
> >>>>>>>>/dev/sda1        /boot        ext2        default,noatime    0 
> >>>>>>>>2
> >>>>>>>>/dev/sda2        none        swap        sw        0 0
> >>>>>>>>/dev/sda3        /        ext4        noatime        0 1
> >>>>>>>>/dev/sda5        /home        ext4        noatime            0 
> >>>>>>>>2
> >>>>>>>>/dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>box0 boot # mount|grep /dev/sda
> >>>>>>>>/dev/sda3 on / type ext4 (rw,noatime,data=ordered)
> >>>>>>>>/dev/sda5 on /home type ext4 (rw,noatime)
> >>>>>>>>                 
> >>>>>>>,,,however mount says up there that it's not mounted.
> >>>>>>>
> >>>>>>>               
> >>>>>>>>box0 boot # fdisk -l /dev/sda
> >>>>>>>>
> >>>>>>>>Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
> >>>>>>>>Units = sectors of 1 * 512 = 512 bytes
> >>>>>>>>Sector size (logical/physical): 512 bytes / 512 bytes
> >>>>>>>>I/O size (minimum/optimal): 512 bytes / 512 bytes
> >>>>>>>>Disk identifier: 0x00000000
> >>>>>>>>
> >>>>>>>>    Device Boot      Start         End      Blocks   Id  System
> >>>>>>>>/dev/sda1   *        2048       67583       32768   83  Linux
> >>>>>>>>/dev/sda2           67584     1116159      524288   82  Linux 
> >>>>>>>>swap / Solaris
> >>>>>>>>/dev/sda3         1116160    43059199    20971520   83  Linux
> >>>>>>>>/dev/sda4        43059200   488397167   222668984    5  
> >>>>>>>>Extended
> >>>>>>>>/dev/sda5        43061248   488397167   222667960   83  Linux
> >>>>>>>>                 
> >>>>>>>For some reason your /boot partition didn't get mounted. See the 
> >>>>>>>boot
> >>>>>>>logs, and try to mounting by hand. Perhaps the fsck failed or it 
> >>>>>>>needs
> >>>>>>>manual intervention.
> >>>>>>>
> >>>>>>>Regards.
> >>>>>>>               
> >>>>>>Based on the 'dmesg' output below, EXT2-fs attempted to mount the 
> >>>>>>'/'
> >>>>>>partition instead of the '/boot' one.
> >>>>>>
> >>>>>>box0 ~ # dmesg|grep 'EXT.*fs'
> >>>>>>[    2.444214] EXT2-fs (sda3): error: couldn't mount because of
> >>>>>>unsupported optional features (240)
> >>>>>>[    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to 
> >>>>>>feature
> >>>>>>incompatibilities
> >>>>>>[    2.481412] EXT4-fs (sda3): mounted filesystem with ordered 
> >>>>>>data
> >>>>>>mode. Opts: (null)
> >>>>>>[    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
> >>>>>>[    9.731383] EXT4-fs (sda5): mounted filesystem with ordered 
> >>>>>>data
> >>>>>>mode. Opts: (null)
> >>>>>>
> >>>>>>Would that suggest a corrupted /boot/grub/grub.conf file?
> >>>>>>             
> >>>>>Not necessarily. Can you manually mount /boot and see the contents 
> >>>>>of
> >>>>>/boot/grub/grub.conf.
> >>>>>
> >>>>>           
> >>>>>>How did the system boot then?
> >>>>>>             
> >>>>>If grub can see the boot partition (and is correctly configured 
> >>>>>and
> >>>>>installed on the MBR), it can mount the root system without 
> >>>>>problems
> >>>>>regardless of fstab. Do you use an initramfs?
> >>>>>
> >>>>>Regards.
> >>>>>           
> >>>>'mount /boot' fails:
> >>>>box0 ~ # mount /boot
> >>>>mount: wrong fs type, bad option, bad superblock on /dev/sda1,
> >>>>        missing codepage or helper program, or other error
> >>>>        In some cases useful info is found in syslog - try
> >>>>        dmesg | tail or so
> >>>>
> >>>>No, I do not use 'initfamfs'.
> >>>>
> >>>>What do you suggest doing?
> >>>>         
> >>>Mounting it by hand:
> >>>
> >>>mount -t ext2 /dev/sda1 /boot
> >>>
> >>>Regards.
> >>>       
> >>That did the trick. Thanks very much.
> >>
> >>Here's my /boot/grub/grub.conf:
> >>box0 linux # cat /boot/grub/grub.conf
> >># This is a sample grub.conf for use with Genkernel, per the Gentoo 
> >>handbook
> >>#
> >>http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&chap=10#doc_chap2
> >># If you are not using Genkernel and you need help creating this 
> >>file, you
> >># should consult the handbook. Alternatively, consult the
> >>grub.conf.sample that
> >># is included with the Grub documentation.
> >>
> >>default 0
> >>timeout 30
> >>splashimage=(hd0,0)/boot/grub/splash.xpm.gz
> >>
> >>title Gentoo Linux 3.8.13
> >>root (hd0,0)
> >>kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3
> >>#initrd /boot/initramfs-genkernel-x86-2.6.24-gentoo-r5
> >>
> >>title Gentoo Linux 3.8.13 (rescue)
> >>root (hd0,0)
> >>kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3 init=/bin/bb
> >># vim:ft=conf:
> >>
> >>Is there anything that suggests as to why the /boot partition failed 
> >>to
> >>mount at system start-up?
> >>     
> >No, I don't see anything that. However, since you cannot "mount
> >/boot", but doing it manually works, that means something is wrong
> >with your fstab. Can I see it again? There is no /boot/etc/fstab,
> >right? What does /boot/grub/device.map say?
> >
> >Regards.
> >   
> Getting late. I'll have to chase it up tomorrow. Sorry.
> 
> Thanks heaps for your help.
> 
> I'll keep yourself and the list posted on the progress made.
> 
> 

Hi,

the problem is in your fstab:

You try first to mount /boot before mounting root "/"....
Cant work...

Try this one:
/dev/sda3        /        ext4        noatime        0 1
/dev/sda1        /boot        ext2        default,noatime    0 2
/dev/sda2        none        swap        sw        0 0
/dev/sda5        /home        ext4        noatime            0 2
/dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0


best regards,
mcc

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Bruce Hill]

On Sat, Sep 07, 2013 at 11:31:47PM +0200, meino.cramer@gmx.de wrote:
> 
> the problem is in your fstab:
> 
> You try first to mount /boot before mounting root "/"....
> Cant work...
> 
> Try this one:
> /dev/sda3        /        ext4        noatime        0 1
> /dev/sda1        /boot        ext2        default,noatime    0 2
> /dev/sda2        none        swap        sw        0 0
> /dev/sda5        /home        ext4        noatime            0 2
> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
> 
> 
> best regards,
> mcc

That advice is wrong. See fstab example here:

/dev/sda1		/boot		ext2		noatime		1 2
/dev/sda2		/		xfs		noatime		0 1
/dev/sda3		none		swap		sw		0 0
/dev/cdrom		/mnt/cdrom	auto		noauto,ro	0 0

To the OP. Never <snip> part of a file asked for help. There might be
something in the file unknown to you that is pertinent to the problem.

You have "default" in your /etc/fstab line for /boot, when the option is
actually "defaults". I haven't tested to see what difference that makes, but
you should add the s to default anyway. See "man mount".

Cheers,

Bruce
-- 
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A: Because it messes up the order in which people normally read text.                                                                                                                                                          
Q: Why is top-posting such a bad thing?                                                                                                                                                                                        
A: Top-posting.                                                                                                                                                                                                                
Q: What is the most annoying thing in e-mail?

Don't top-post: http://en.wikipedia.org/wiki/Top_post#Top-posting

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7] [SOLVED]

[Alexander Kapshuk]

On 09/08/2013 06:20 PM, Bruce Hill wrote:
> On Sat, Sep 07, 2013 at 11:31:47PM +0200, meino.cramer@gmx.de wrote:
>> the problem is in your fstab:
>>
>> You try first to mount /boot before mounting root "/"....
>> Cant work...
>>
>> Try this one:
>> /dev/sda3        /        ext4        noatime        0 1
>> /dev/sda1        /boot        ext2        default,noatime    0 2
>> /dev/sda2        none        swap        sw        0 0
>> /dev/sda5        /home        ext4        noatime            0 2
>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>
>>
>> best regards,
>> mcc
> That advice is wrong. See fstab example here:
>
> /dev/sda1		/boot		ext2		noatime		1 2
> /dev/sda2		/		xfs		noatime		0 1
> /dev/sda3		none		swap		sw		0 0
> /dev/cdrom		/mnt/cdrom	auto		noauto,ro	0 0
>
> To the OP. Never <snip> part of a file asked for help. There might be
> something in the file unknown to you that is pertinent to the problem.
>
> You have "default" in your /etc/fstab line for /boot, when the option is
> actually "defaults". I haven't tested to see what difference that makes, but
> you should add the s to default anyway. See "man mount".
>
> Cheers,
>
> Bruce
Thanks for your input.

Turns out /boot wouldn't mount at system start-up because I had
'default' instead of 'defaults' specified for /boot in /etc/fstab.

Now /boot gets mounted automatically without any further ado.

box0=; mount|grep ^/dev
/dev/sda3 on / type ext4 (rw,noatime,data=ordered)
/dev/sda1 on /boot type ext2 (rw,noatime)
/dev/sda5 on /home type ext4 (rw,noatime)

Thanks.

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[gottlieb]

On Sat, Sep 07 2013, Canek Peláez Valdés wrote:

> No, I don't see anything that. However, since you cannot "mount
> /boot", but doing it manually works, that means something is wrong
> with your fstab. Can I see it again? There is no /boot/etc/fstab,
> right? What does /boot/grub/device.map say?

Below is what alexander said previously

>>>> box0 boot # cat /etc/fstab
>>>> <snip>
>>>> /dev/sda1        /boot        ext2        default,noatime    0 2
>>>> /dev/sda2        none        swap        sw        0 0
>>>> /dev/sda3        /        ext4        noatime        0 1
>>>> /dev/sda5        /home        ext4        noatime            0 2
>>>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>
>>>>
>>>> box0 boot # mount|grep /dev/sda

It all looks right ... unless the <snip> hides the error.

Also as canek says, we are assuming there is no /boot/etc/fstab
or something else shadowing the fstab above.

allan

Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Hinnerk van Bruinehsen]

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On Sat, Sep 07, 2013 at 09:53:28PM +0300, Alexander Kapshuk wrote:
> <SNIP>
> Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
> partition instead of the '/boot' one.
>
> box0 ~ # dmesg|grep 'EXT.*fs'
> [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
> unsupported optional features (240)
> [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
> incompatibilities
> [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
> mode. Opts: (null)
> [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
> [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
> mode. Opts: (null)
>
> Would that suggest a corrupted /boot/grub/grub.conf file?
>
> How did the system boot then?

Most likely your /boot partition is not ext2 as stated in fstab and it
therefore fails to mount (the unsupported optional features hint in that
direction).
Simply try to mount it by hand (mount /boot). If that fails try to mount it
with option -t <filesystem> (for filesystem try ext3 or ext4).

Your system still boots because grub is able to read the filesystem (which
makes corruption unlikely). grub doesn't use fstab or the drivers in the
kernelimage (which isn't even loaded at that point of time).

WKR
Hinnerk

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Re: [gentoo-user] re: can't find /boot/grub/grub.conf after kernel upgrade [3.10.7]

[Francisco Ares]

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2013/9/9 Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>

> On Sat, Sep 07, 2013 at 09:53:28PM +0300, Alexander Kapshuk wrote:
> > <SNIP>
> > Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
> > partition instead of the '/boot' one.
> >
> > box0 ~ # dmesg|grep 'EXT.*fs'
> > [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
> > unsupported optional features (240)
> > [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
> > incompatibilities
> > [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
> > mode. Opts: (null)
> > [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
> > [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
> > mode. Opts: (null)
> >
> > Would that suggest a corrupted /boot/grub/grub.conf file?
> >
> > How did the system boot then?
>
> Most likely your /boot partition is not ext2 as stated in fstab and it
> therefore fails to mount (the unsupported optional features hint in that
> direction).
> Simply try to mount it by hand (mount /boot). If that fails try to mount it
> with option -t <filesystem> (for filesystem try ext3 or ext4).
>
> Your system still boots because grub is able to read the filesystem (which
> makes corruption unlikely). grub doesn't use fstab or the drivers in the
> kernelimage (which isn't even loaded at that point of time).
>
> WKR
> Hinnerk
>

Could it be that the partition was formated using EXT2 extended properties
from a previous kernel built with those options, and now this new kernel
that has just been built, has those extended options missing?

Just my 2 cents.

Francisco

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