Another fsck error at startup

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Author: Michael Havens
Date:  
Subject: Another fsck error at startup
Thankee much Thomas. It worked and I now have another bit of information to
write down and keep for future reference!

On Tuesday 05 August 2003 02:31 am, Thomas Cameron wrote:
> mkfs -t ext2 -j /dev/sda6
> --
> Thomas Cameron, RHCE, CNE, MCSE, MCT
> Cameron Technical Services, Inc.
> http://www.camerontech.com/
> (512) 454-3200
> ----- Original Message -----
> From: "Michael Havens" <>
> To: <>
> Sent: Monday, August 04, 2003 10:15 AM
> Subject: Re: Another fsck error at startup
>
> > I just ran mkfs /dev/sda6. I ran it but I cannot figure out how to create
> > ext3. Could you help?
> >
> > On Tuesday 05 August 2003 01:40 am, Thomas Cameron wrote:
> > > Did you run mkfs on it when you first made that partition?
> > >
> > > On Mon, 2003-08-04 at 09:48, Michael Havens wrote:
> > > > I tried all of them.
> > > > I tried differant options.
> > > > It always returned the sam:
> > > > ~~~
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > > (sometimes there was additional info but I do not think it is seeing
>
> it)
>
> > > > ~~~
> > > > ~):Mike:(~
> > > >
> > > > Following is the printout of my actions.
> > > >
> > > > bmike1@bmike1:~$ su
> > > > Password:
> > > > root@bmike1:/home/bmike1# e2fsck -f /dev/sda6
> > > > e2fsck 1.34-WIP (21-May-2003)
> > > > Couldn't find ext2 superblock, trying backup blocks...
> > > > e2fsck: Bad magic number in super-block while trying to open
> > > > /dev/sda6
> > > >
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > >
> > > > root@bmike1:/home/bmike1# e2fsck -B 8193 /dev/sda6
> > > > e2fsck 1.34-WIP (21-May-2003)
> > > > Couldn't find ext2 superblock, trying backup blocks...
> > > > e2fsck: Invalid argument while trying to open /dev/sda6
> > > >
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > >
> > > > root@bmike1:/home/bmike1# e2fsck -b 8193 /dev/sda6
> > > > e2fsck 1.34-WIP (21-May-2003)
> > > > e2fsck: Bad magic number in super-block while trying to open
> > > > /dev/sda6
> > > >
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > >
> > > > root@bmike1:/home/bmike1# e2fsck -b 16384 /dev/sda6
> > > > e2fsck 1.34-WIP (21-May-2003)
> > > > e2fsck: Invalid argument while trying to open /dev/sda6
> > > >
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > >
> > > > root@bmike1:/home/bmike1# e2fsck -b 16383 /dev/sda6
> > > > e2fsck 1.34-WIP (21-May-2003)
> > > > e2fsck: Invalid argument while trying to open /dev/sda6
> > > >
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > >
> > > > root@bmike1:/home/bmike1# e2fsck -p /dev/sda6
> > > > e2fsck: Bad magic number in super-block while trying to open
> > > > /dev/sda6 /dev/sda6:
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > >
> > > > root@bmike1:/home/bmike1# e2fsck -C /dev/sda6
> > > > Usage: e2fsck [-panyrcdfvstDFSV] [-b superblock] [-B blocksize]
> > > >                 [-I inode_buffer_blocks] [-P process_inode_size]
> > > >                 [-l|-L bad_blocks_file] [-C fd] [-j ext-journal]
> > > >                 [-E extended-options] device

> > > >
> > > > Emergency help:
> > > >  -p                   Automatic repair (no questions)
> > > >  -n                   Make no changes to the filesystem
> > > >  -y                   Assume "yes" to all questions
> > > >  -c                   Check for bad blocks and add them to the

>
> badblock
>
> > > > list -f                   Force checking even if filesystem is marked
> > > > clean -v                   Be verbose
> > > >  -b superblock        Use alternative superblock
> > > >  -B blocksize         Force blocksize when looking for superblock
> > > >  -j external-journal  Set location of the external journal
> > > >  -l bad_blocks_file   Add to badblocks list
> > > >  -L bad_blocks_file   Set badblocks list
> > > > root@bmike1:/home/bmike1# e2fsck -cc /dev/sda6
> > > > e2fsck 1.34-WIP (21-May-2003)
> > > > Couldn't find ext2 superblock, trying backup blocks...
> > > > e2fsck: Bad magic number in super-block while trying to open
> > > > /dev/sda6

> > > >
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > >
> > > > root@bmike1:/home/bmike1# e2fsck -b 32768 /dev/sda6
> > > > e2fsck 1.34-WIP (21-May-2003)
> > > > e2fsck: Invalid argument while trying to open /dev/sda6
> > > >
> > > > The superblock could not be read or does not describe a correct ext2
> > > > filesystem. If the device is valid and it really contains an ext2
> > > > filesystem (and not swap or ufs or something else), then the
>
> superblock
>
> > > > is corrupt, and you might try running e2fsck with an alternate
> > > > superblock: e2fsck -b 8193 <device>
> > > >
> > > > On Monday 04 August 2003 10:19 am, technomage wrote:
> > > > > -----BEGIN PGP SIGNED MESSAGE-----
> > > > > Hash: SHA1
> > > > >
> > > > > hmmmmmmm.
> > > > > well, the only other thing I can suggest is read the manpage on
>
> e2fsck
>
> > > > > (man e2fsck). it has some suggestions in it for other block
> > > > > numbers. try any or all of them.
> > > > >
> > > > > Mage
> > > >
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