[Clfs-support] Can't mount root at boot

[Arnie Stender]

Bauke Jan Douma wrote:
> Hi,
>
> These look to be alright at first glance.
>
> The problem is however still that you say you have made the rootfs
> with mke2fs, that you have it tagged as ext2 in /etc/fstab, but that
> the kernel reports a JFS error.
>
> These JFS errors btw. are to be found in <linuxhome>/fs/jfs/jfs_mount.c
>
> Could you mail /etc/fstab, or put it on the CLFS list?
> Also, are there any relevant kernel messages before the JFS Failure
> message?
>
> bjd
>
Hi Bauke,
    I just found out something interesting. When a system is up and
running and you put a new file system on a partition and the wrong file
system type is in the fstab, when you mount it and do a mount command to
see it is mounted it shows the file system type that was in the fstab
not the type that the file system actually is. Correcting the fstab
after the file system is mounted does not change the output. You need to
unmount the file system then re-mount it with the correct information in
the fstab. Then when you do the mount to see it mounted it reports the
correct file system type. I am wondering if it is just a reporting
problem or if when mounted with the wrong information in fstab it really
acts like the wrong file system. What I did was blow away my ext2 file
system and used mkfs.ext3 to create a new one. So was it actually
creating a journal while mount was reporting that it was an ext2 type? I
was also surprised to find out that dumpe2fs does not report if the file
system is ext2 or ext3. Now to see if it helped. I need to try to boot
it. ;-) I'll let you know. OK, I just did the dumpe2fs on the ext3
partition and under the options section it says "has_journal" where it
didn't when it was ext2.

Arnie