[gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Christian Fischer]

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I've a problem with mounting partitions. I've two gentoo systems on this box, 
both are stable tree. The old one is a build from stage 3, the new one is a 
build from stage 2. 

kernel: linux-2.6.8-gentoo-r3
gcc: version 3.3.4 20040623
platform: intel p4 celeron
partitions: hda1 ext2   /boot
  hda2 swap 
  hda 3 reiserfs  /old
  hda4 reiserfs /

hda3 is the old system
hda4 is the new system

I've tried to copy a directoriy with cp -a from /old/home/user1/directory/
to /home/user1/. Copy told me that both directories are the same and copy 
cannot be done. I'm shure that these directories shouldn't  be the same, one 
comes from /dev/hda3 and the other comes from /dev/hda4. I've done a test:

# mkdir /home/user1/testdir

I got two directories testdir, one in /home/user1/ and a second 
in /old/home/user1/. Well, next test:

# umount /old
# mkdir /home/user1/testdir2

Nothing in /old. 

# mount /dev/hda3 /old

got testdir2 in both homes, the old and the new one

There are no problems with kernel 2.6.7-gentoo-r11 or kernel 2.4.26-gentoo-r9. 
In /old/home/user1/ are files and directories from the old home, which are 
not in new home, and some from new home which seems to be the same. Adding 
and removing directories in the new home affects the old home.

Regards
Christian
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Re: [gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Paul de Vrieze]

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On Tuesday 07 September 2004 13:48, Christian Fischer wrote:
> I've tried to copy a directoriy with cp -a from
> /old/home/user1/directory/ to /home/user1/. Copy told me that both
> directories are the same and copy cannot be done. I'm shure that these
> directories shouldn't  be the same, one comes from /dev/hda3 and the
> other comes from /dev/hda4. I've done a test:

> There are no problems with kernel 2.6.7-gentoo-r11 or kernel
> 2.4.26-gentoo-r9. In /old/home/user1/ are files and directories from
> the old home, which are not in new home, and some from new home which
> seems to be the same. Adding and removing directories in the new home
> affects the old home.

You might want to check your bootloader configuration. For the root 
filesystem the kernel does not actually consult fstab at all, only it's 
commandline. To check what the kernel believes to actually be mounted 
look at /proc/mounts

Paul

-- 
Paul de Vrieze
Gentoo Developer
Mail: pauldv@gentoo.org
Homepage: http://www.devrieze.net

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Re: [gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Christian Fischer]

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On Tuesday 07 September 2004 14:28, Paul de Vrieze wrote:
> You might want to check your bootloader configuration. For the root
> filesystem the kernel does not actually consult fstab at all, only it's
> commandline. To check what the kernel believes to actually be mounted
> look at /proc/mounts

Paul,
that's not a problem of mounting the rootfs in the right way or specifying the 
right kernel commandline. I've different partitions on different mountpoints. 
Changes in new home shouldn't affect the old home. That's not normal.

# cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / reiserfs rw,noatime 0 0
none /proc proc rw,nodiratime 0 0
none /sys sysfs rw 0 0
none /dev devfs rw 0 0
none /dev/pts devpts rw 0 0
none /dev/shm tmpfs rw 0 0
none /proc/bus/usb usbfs rw 0 0
/dev/hda3 /old reiserfs rw 0 0

Christian
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Re: [gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Greg KH]

On Wed, Sep 08, 2004 at 12:18:18AM +0200, Christian Fischer wrote:
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> Hash: SHA1
> 
> On Tuesday 07 September 2004 14:28, Paul de Vrieze wrote:
> > You might want to check your bootloader configuration. For the root
> > filesystem the kernel does not actually consult fstab at all, only it's
> > commandline. To check what the kernel believes to actually be mounted
> > look at /proc/mounts
> 
> Paul,
> that's not a problem of mounting the rootfs in the right way or specifying the 
> right kernel commandline. I've different partitions on different mountpoints. 
> Changes in new home shouldn't affect the old home. That's not normal.
> 
> # cat /proc/mounts
> rootfs / rootfs rw 0 0
> /dev/root / reiserfs rw,noatime 0 0
> none /proc proc rw,nodiratime 0 0
> none /sys sysfs rw 0 0
> none /dev devfs rw 0 0
> none /dev/pts devpts rw 0 0
> none /dev/shm tmpfs rw 0 0
> none /proc/bus/usb usbfs rw 0 0
> /dev/hda3 /old reiserfs rw 0 0

I don't see /dev/hda4 being used here.

greg k-h

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Re: [gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Mike Frysinger]

On Tuesday 07 September 2004 06:18 pm, Christian Fischer wrote:
> that's not a problem of mounting the rootfs in the right way or specifying
> the right kernel commandline. I've different partitions on different
> mountpoints. Changes in new home shouldn't affect the old home. That's not
> normal.

can you show /proc/cmdline and /proc/mounts from the 'good' kernel and then 
from the 'bad' kernel ?
-mike

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Re: [gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Christian Fischer]

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On Wednesday 08 September 2004 04:07, Greg KH wrote:

> > # cat /proc/mounts
> > rootfs / rootfs rw 0 0
> > /dev/root / reiserfs rw,noatime 0 0
> > none /proc proc rw,nodiratime 0 0
> > none /sys sysfs rw 0 0
> > none /dev devfs rw 0 0
> > none /dev/pts devpts rw 0 0
> > none /dev/shm tmpfs rw 0 0
> > none /proc/bus/usb usbfs rw 0 0
> > /dev/hda3 /old reiserfs rw 0 0
>
> I don't see /dev/hda4 being used here.

I also can't see it but I don' know enough about that, probably this is 
normal. This is from an other machine with kernel 2.6.7-gentoo-r11.

# cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / reiserfs rw,noatime 0 0
none /dev devfs rw 0 0
none /proc proc rw,nodiratime 0 0
none /sys sysfs rw 0 0
none /dev/pts devpts rw 0 0
none /dev/shm tmpfs rw 0 0
none /proc/bus/usb usbfs rw 0 0

Christian
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Re: [gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Christian Fischer]

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Hash: SHA1

On Wednesday 08 September 2004 04:16, Mike Frysinger wrote:

> can you show /proc/cmdline and /proc/mounts from the 'good' kernel and then
> from the 'bad' kernel ?

This is the good one (2.4.26):

# cat /proc/cmdline
root=/dev/hda4
# cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / reiserfs rw,noatime 0 0
none /proc proc rw 0 0
none /dev devfs rw 0 0
none /dev/shm tmpfs rw 0 0
none /proc/bus/usb usbfs rw 0 0
/dev/hda3 /old reiserfs rw 0 0

And that is the bad one (2.6.8):
# cat /proc/cmdline
root=/dev/hda4
# cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / reiserfs rw,noatime 0 0
none /proc proc rw,nodiratime 0 0
none /sys sysfs rw 0 0
none /dev devfs rw 0 0
none /dev/pts devpts rw 0 0
none /dev/shm tmpfs rw 0 0
none /proc/bus/usb usbfs rw 0 0
/dev/hda3 /old reiserfs rw 0 0


There is another ugly thing: symlinks seems to be work incorrect.
# cat /proc/version
Linux version 2.6.8-gentoo-r3 (root@server03) (gcc version 3.3.4 20040623 
(Gentoo Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6)) #1 Mon Aug 30 20:22:33 Local 
time zone must be set--see zic manu

# ls -al /etc/localtime
lrwxrwxrwx   1 root root    33 Sep  1 10:50 localtime 
- -> /usr/share/zoneinfo/Europe/Berlin

Thanks
Christian
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Re: [gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Maurice van der Pot]

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On Wed, Sep 08, 2004 at 12:18:18AM +0200, Christian Fischer wrote:
> /dev/root / reiserfs rw,noatime 0 0
> /dev/hda3 /old reiserfs rw 0 0

What is /dev/root? That's not a link to /dev/hda3, is it?

Maurice.


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Re: [gentoo-dev] mount works not correct with kernel 2.6.8-gentoo-r3

[Christian Fischer]

On Wednesday 08 September 2004 18:21, Maurice van der Pot wrote:
> On Wed, Sep 08, 2004 at 12:18:18AM +0200, Christian Fischer wrote:
> > /dev/root / reiserfs rw,noatime 0 0
> > /dev/hda3 /old reiserfs rw 0 0
>
> What is /dev/root? That's not a link to /dev/hda3, is it?

No, it isn't. That is /dev/hda4.

# mount
/dev/hda4 on / type reiserfs (rw,noatime)
[...]

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