[gentoo-user] Deleted /boot

[gentoo-user] Deleted /boot

[Mike Markowski]

Well, when I do it, I do it right.  Through a bad combination of typos
and missing an <enter> I deleted everything in /boot.  :-(

This is what I did to (try to) recover:

  # cd /boot
  # mklost+found
  # emerge grub
  [...edited grub.conf...]
  [...recompiled kernel & modules and installed...]

I *thought* that's all I'd need, but upon boot up:

  Warning:unable to open an initial console
  Kernel panic- not syncing: no init found. Try passing init= option to kernel

I compiled the kernel myself, not with genkernel.  I'm stumped at the
moment & would be glad to try any ideas anyone might have.

Many thanks!
Mike
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Re: [gentoo-user] Deleted /boot

[Teresa and Dale]

Mike Markowski wrote:

>Well, when I do it, I do it right.  Through a bad combination of typos
>and missing an <enter> I deleted everything in /boot.  :-(
>
>This is what I did to (try to) recover:
>
>  # cd /boot
>  # mklost+found
>  # emerge grub
>  [...edited grub.conf...]
>  [...recompiled kernel & modules and installed...]
>
>I *thought* that's all I'd need, but upon boot up:
>
>  Warning:unable to open an initial console
>  Kernel panic- not syncing: no init found. Try passing init= option to kernel
>
>I compiled the kernel myself, not with genkernel.  I'm stumped at the
>moment & would be glad to try any ideas anyone might have.
>
>Many thanks!
>Mike
>  
>


This !may! help:

> root@smoker / # ls -al /boot/
> total 4349
> drwxr-xr-x  5 root root     272 Jun 19 20:23 .
> drwxr-xr-x 21 root root     520 Jun 13 00:06 ..
> -rw-r--r--  1 root root       0 Dec  9  2005 .keep
> lrwxrwxrwx  1 root root       1 Dec  8  2005 boot -> .
> -rw-r--r--  1 root root 2225130 Dec 27 04:50 bzImage-gen-2.6.14-5
> -rw-r--r--  1 root root 2177580 May 16 08:08 bzImage-gen-2.6.16-2
> -rw-r--r--  1 root root   37565 May 16 08:13 config-gen-2.6.16-2
> drwxr-xr-x  2 root root     672 May 16 08:12 grub
> root@smoker / #



> root@smoker / # ls -al /boot/grub/
> total 461
> drwxr-xr-x 2 root root    672 May 16 08:12 .
> drwxr-xr-x 5 root root    272 Jun 19 20:23 ..
> -rw-r--r-- 1 root root     45 Dec 10  2005 device.map
> -rw-r--r-- 1 root root   8052 Jan 18 00:59 e2fs_stage1_5
> -rw-r--r-- 1 root root   7812 Jan 18 00:59 fat_stage1_5
> -rw-r--r-- 1 root root   7060 Jan 18 00:59 ffs_stage1_5
> -rw-r--r-- 1 root root    393 May 16 08:12 grub.conf
> -rw-r--r-- 1 root root   1624 Jan 18 00:59 grub.conf.sample
> -rw-r--r-- 1 root root    393 May 16 07:09 grub.conf~
> -rw-r--r-- 1 root root   7124 Jan 18 00:59 iso9660_stage1_5
> -rw-r--r-- 1 root root   8576 Jan 18 00:59 jfs_stage1_5
> lrwxrwxrwx 1 root root      9 Nov 18  2005 menu.lst -> grub.conf
> -rw-r--r-- 1 root root   7284 Jan 18 00:59 minix_stage1_5
> -rw-r--r-- 1 root root   9556 Jan 18 00:59 reiserfs_stage1_5
> -rw-r--r-- 1 root root  33856 Jan 18 00:59 splash.xpm.gz
> -rw-r--r-- 1 root root    512 Jan 18 00:59 stage1
> -rw-r--r-- 1 root root 105544 Jan 18 00:59 stage2
> -rw-r--r-- 1 root root 105544 Jan 15 10:52 stage2.old
> -rw-r--r-- 1 root root 105544 Jan 18 00:59 stage2_eltorito
> -rw-r--r-- 1 root root   7368 Jan 18 00:59 ufs2_stage1_5
> -rw-r--r-- 1 root root   6708 Jan 18 00:59 vstafs_stage1_5
> -rw-r--r-- 1 root root   9404 Jan 18 00:59 xfs_stage1_5
> root@smoker / #      


May want to check and see if something is missing there.  Here is my
grub.conf just in case.  I'm using gentoo-sources-2.6.16-r9.

> timeout 10
>
> default 0
> Splashimage=(hd0,0)/boot/grub/splash.xpm.gz
>
> title Gentoo
> kernel (hd0,0)/bzImage-gen-2.6.16-2 root=/dev/hda6 ide0=ata66
> ide1=ata66 vga=788


See anything out of place or missing?

Hope that helps.

Dale
:-) :-)
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Re: [gentoo-user] Deleted /boot

[fei huang]

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On 6/20/06, Mike Markowski <mm@udel.edu> wrote:
>
> Well, when I do it, I do it right.  Through a bad combination of typos
> and missing an <enter> I deleted everything in /boot.  :-(
>
> This is what I did to (try to) recover:
>
>   # cd /boot
>   # mklost+found
>   # emerge grub
>   [...edited grub.conf...]
>   [...recompiled kernel & modules and installed...]


yep,  but  one thing you might had been missed is to setup grub, I've found
it's much clear to do it  manually, you may refer to the gentoo manual as
well. although everything is there, you have to run setup to make grub
installed in MBR or the first sector of your boot partition.

I *thought* that's all I'd need, but upon boot up:
>
>   Warning:unable to open an initial console
>   Kernel panic- not syncing: no init found. Try passing init= option to
> kernel
>
> I compiled the kernel myself, not with genkernel.  I'm stumped at the
> moment & would be glad to try any ideas anyone might have.


I'm not sure of this problem, since lots of stuff may cause this complain
message.
make sure the kernel and root partition are correct in your grub.conf. try
it.


Many thanks!
> Mike
> --
> gentoo-user@gentoo.org mailing list


good luck.

daniel

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Re: [gentoo-user] Deleted /boot

[Mike Markowski]

Here's a little more info that might inspire some ideas out there in
gentoo land.  Since my /boot partition was possibly in a generally
unhappy state, I booted the 2006.0 livecd, did a "mkfs /dev/sda1" (my
/boot partition), then put grub and kernel stuff back on /boot.  I was
confident this would do it, but no go.  Just to be sure nothing was left
out, I even went through the grub set up process again as Daniel
recommended in another post in this thread.  Still no change.

The boot process continues just prior to the "INIT 2.86" line when the
init.d stuff is kicked off.  While booted with the livecd, I checked and
/sbin/init really is there (mine, not the livecd one).  But when I tried
to pass "init=/sbin/init" as a kernel arg in grub.conf, I got the same
panic along with a message that /sbin/init couldn't be executed (or
something similar - I forgot to write it down).  But since I only hosed
/boot and then reinstalled grub and kernel, I'm not sure why I'm not in
business yet.

Any ideas?  "Bueller?  Bueller?"

Thanks,
Frustrated in Pennsylvania (aka Mike)

Mike Markowski wrote:
> Well, when I do it, I do it right.  Through a bad combination of typos
> and missing an <enter> I deleted everything in /boot.  :-(
> 
> This is what I did to (try to) recover:
> 
>   # cd /boot
>   # mklost+found
>   # emerge grub
>   [...edited grub.conf...]
>   [...recompiled kernel & modules and installed...]
> 
> I *thought* that's all I'd need, but upon boot up:
> 
>   Warning:unable to open an initial console
>   Kernel panic- not syncing: no init found. Try passing init= option to kernel
> 
> I compiled the kernel myself, not with genkernel.  I'm stumped at the
> moment & would be glad to try any ideas anyone might have.
> 
> Many thanks!
> Mike

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Re: [gentoo-user] Deleted /boot

[Hani Duwaik]

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On 6/20/06, Mike Markowski <mm@udel.edu> wrote:
>
> Here's a little more info that might inspire some ideas out there in
> gentoo land.  Since my /boot partition was possibly in a generally
> unhappy state, I booted the 2006.0 livecd, did a "mkfs /dev/sda1" (my
> /boot partition), then put grub and kernel stuff back on /boot.  I was
> confident this would do it, but no go.  Just to be sure nothing was left
> out, I even went through the grub set up process again as Daniel
> recommended in another post in this thread.  Still no change.
>
> The boot process continues just prior to the "INIT 2.86" line when the
> init.d stuff is kicked off.  While booted with the livecd, I checked and
> /sbin/init really is there (mine, not the livecd one).  But when I tried
> to pass "init=/sbin/init" as a kernel arg in grub.conf, I got the same
> panic along with a message that /sbin/init couldn't be executed (or
> something similar - I forgot to write it down).  But since I only hosed
> /boot and then reinstalled grub and kernel, I'm not sure why I'm not in
> business yet.
>
>
What's the 'ls -al' of your /boot partition look like?  Does it have the
following link?

lrwxrwxrwx  1 root root       1 Dec  8  2005 boot -> .

Just wondering?

-Hani

-- 
"If, of the many truths, you select only one and follow it blindly, it will
become a falsehood, and you a fanatic."

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Re: [gentoo-user] Deleted /boot

[Norberto Bensa]

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Mike Markowski wrote:
> Any ideas?  "Bueller?  Bueller?"

Please post:

$ cat /boot/grub/menu.lst
$ ls -l /boot
$ sudo fdisk -l
$ ls -l /dev/console
$ ls -l /dev/initctl
$ ls -l /dev/null 


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Re: [gentoo-user] Deleted /boot

[fei huang]

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On 6/21/06, Mike Markowski <mm@udel.edu> wrote:
>
> Here's a little more info that might inspire some ideas out there in
> gentoo land.  Since my /boot partition was possibly in a generally
> unhappy state, I booted the 2006.0 livecd, did a "mkfs /dev/sda1" (my
> /boot partition), then put grub and kernel stuff back on /boot.  I was
> confident this would do it, but no go.  Just to be sure nothing was left
> out, I even went through the grub set up process again as Daniel
> recommended in another post in this thread.  Still no change.


Seems nothing unusual.

The boot process continues just prior to the "INIT 2.86" line when the
> init.d stuff is kicked off.  While booted with the livecd, I checked and
> /sbin/init really is there (mine, not the livecd one).  But when I tried
> to pass "init=/sbin/init" as a kernel arg in grub.conf, I got the same
> panic along with a message that /sbin/init couldn't be executed (or
> something similar - I forgot to write it down).  But since I only hosed
> /boot and then reinstalled grub and kernel, I'm not sure why I'm not in
> business yet.
>
> Any ideas?  "Bueller?  Bueller?"


although the panic  complains that  init  can  not be executed,  the problem
may not  be caused by init, make sure to pass the correct "root" arg to
kernel, which is your root partition, not the same "root" when you are in
grub's shell.

Thanks,
> Frustrated in Pennsylvania (aka Mike)
>
> Mike Markowski wrote:
> > Well, when I do it, I do it right.  Through a bad combination of typos
> > and missing an <enter> I deleted everything in /boot.  :-(
> >
> > This is what I did to (try to) recover:
> >
> >   # cd /boot
> >   # mklost+found
> >   # emerge grub
> >   [...edited grub.conf...]
> >   [...recompiled kernel & modules and installed...]
> >
> > I *thought* that's all I'd need, but upon boot up:
> >
> >   Warning:unable to open an initial console
> >   Kernel panic- not syncing: no init found. Try passing init= option to
> kernel
> >
> > I compiled the kernel myself, not with genkernel.  I'm stumped at the
> > moment & would be glad to try any ideas anyone might have.
> >
> > Many thanks!
> > Mike
>
> --
> gentoo-user@gentoo.org mailing list
>
> hope the snippet from my grub.conf helps:

title GENTOO BOX
root  (hd0,6)                   # the /boot partition
kernel /kernel-2.6.16-gentoo-r7 root=/dev/sda9  # the / partition

well, I assume these stuff is quite basic to you, but before I could see
what exactly your configuration is, this is all I could think about.

good luck

daniel

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Re: [gentoo-user] Deleted /boot

[Mike Markowski]

Norberto Bensa wrote:
> Mike Markowski wrote:
>> Any ideas?  "Bueller?  Bueller?"
> 
> Please post:
> 
> $ cat /boot/grub/menu.lst
> $ ls -l /boot
> $ sudo fdisk -l
> $ ls -l /dev/console
> $ ls -l /dev/initctl
> $ ls -l /dev/null 

Ok, Norberto.  Looks like the (or, a) problem is initctl.  The named
pipe is missing...or is it supposed to be created during boot?  I got
the info below after 'chrooting' from a livecd boot.  I don't know what
the pipe is for, so time to start reading.  But I wanted to get this
posted soon as I could.

Thanks,
Mike

livecd / # cat /boot/grub/menu.lst

   timeout 10
   default 0

   title  Gentoo 2.6.17
   root (hd0,0)
   kernel /kernel-2.6.17-gentoo root=/dev/sda1

   # Change the colors.
   title Change the colors
   color light-green/brown blink-red/blue

livecd / # fdisk -l

   Disk /dev/sda: 80.0 GB, 80026361856 bytes
   255 heads, 63 sectors/track, 9729 cylinders
   Units = cylinders of 16065 * 512 = 8225280 bytes

      Device Boot      Start         End      Blocks   Id  System
   /dev/sda1               1           5       40131   83  Linux
   /dev/sda2               6         249     1959930   82  Linux swap /
Solaris
   /dev/sda3             250        9729    76148100   83  Linux

   Disk /dev/sdb: 1040 MB, 1040187392 bytes
   32 heads, 32 sectors/track, 1984 cylinders
   Units = cylinders of 1024 * 512 = 524288 bytes

      Device Boot      Start         End      Blocks   Id  System
   /dev/sdb1   *           1        1984     1015792    6  FAT16

livecd / # ls -l /boot/

   total 2218
   lrwxrwxrwx 1 root root       1 Jun 20 20:09 boot -> .
   -rw-r--r-- 1 root root   36667 Jun 19 19:32 config-2.6.17-gentoo
   drwxr-xr-x 2 root root    1024 Jun 20 20:06 grub
   -rw-r--r-- 1 root root 2208825 Jun 20 19:39 kernel-2.6.17-gentoo
   drwx------ 2 root root   12288 Jun 20 20:07 lost+found

livecd / # ls -l /dev/console

   crw------- 1 root tty 5, 1 Feb 13 19:03 /dev/console
   livecd / # ls -l /dev/initctl
   /bin/ls: /dev/initctl: No such file or directory
   livecd / # ls -l /dev/null
   crw-rw-rw- 1 root root 1, 3 Feb 13 19:03 /dev/null

livecd / #
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Re: [gentoo-user] Deleted /boot

[Richard Fish]

On 6/21/06, Mike Markowski <mm@udel.edu> wrote:
>
> Ok, Norberto.  Looks like the (or, a) problem is initctl.  The named
> pipe is missing...or is it supposed to be created during boot?  I got

No, /dev/initctl is a named pipe created when init runs...


>    title  Gentoo 2.6.17
>    root (hd0,0)
>    kernel /kernel-2.6.17-gentoo root=/dev/sda1

Um, isn't /dev/sda1 your /boot filesystem?  Shouldn't this be /dev/sda3?

-Richard
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Re: [gentoo-user] Deleted /boot

[Mike Markowski]

Richard Fish wrote:
> On 6/21/06, Mike Markowski <mm@udel.edu> wrote:
>>
>> Ok, Norberto.  Looks like the (or, a) problem is initctl.  The named
>> pipe is missing...or is it supposed to be created during boot?  I got
> 
> No, /dev/initctl is a named pipe created when init runs...
> 
> 
>>    title  Gentoo 2.6.17
>>    root (hd0,0)
>>    kernel /kernel-2.6.17-gentoo root=/dev/sda1
> 
> Um, isn't /dev/sda1 your /boot filesystem?  Shouldn't this be /dev/sda3?

D'oh!  <Bangs head on desk>  I was seeing what I meant, I guess, rather
than what was there.  Thanks, Richard.  I must have spent 2 hours on
this.  I'll go hide in my embarrassment now...

Seriously, many thanks to everyone who helped!
Mike
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