Boot with bad superblock in root fs
Jay Cliburn
jacliburn at bellsouth.net
Mon Aug 28 01:49:17 UTC 2006
Charles Curley wrote:
> On Sun, Aug 27, 2006 at 07:57:19PM -0500, Jay Cliburn wrote:
>> Is it possible to boot a Linux system that has suffered unfixable
>> primary superblock corruption in the root filesystem (ext2)? I know the
>> mount command can be supplied an alternate superblock with the sb
>> option, but AFAIK, the earliest this can be done is by setting the
>> option for the failing partition in /etc/fstab. But of course, root
>> must already be mounted for that to apply.
>>
>> Is there any Way to specify an alternate superblock to initrd to mount
>> the root filesystem?
>
> Can you boot to a live CD, fix the errant partition, and then reboot?
> Finnix should do you.
Actually, the problem isn't with my system, but with that of an
acquaintance, and no, the primary superblock refuses to be fixed with
e2fsck -b executed from Ubuntu LiveCD.
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