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Re: FSCK Maintenance - no root password



No prob- hope that works! :D
Good luck-

Chet

On Mon, Oct 13, 2008 at 11:40 AM, Jason Brown <ninjazjb gmail com> wrote:

> Ok, didn't think about that sorry.
>
> On Mon, Oct 13, 2008 at 11:01 AM, Chet Nichols III
> <chet nichols gmail com>wrote:
>
> > I know services dont run in maintenance mode, and that's why I'm asking.
> My
> > thought was, without the md driver loaded, the OS isn't going to be able
> to
> > understand how to work with /dev/md0, so you may need to load the driver
> > first before fsck will be able to read the device.
> >
> > On Mon, Oct 13, 2008 at 10:46 AM, Jason Brown <ninjazjb gmail com>
> wrote:
> >
> > > I believe its LVM over RAID, but I will have to look and get back with
> > you.
> > > When I created the RAID array, I assigned all the disks the software
> RAID
> > > and then created the RAID 5 during the installation.  I did not go
> > through
> > > and split the partitions afterwards.
> > >
> > > When I run fsck I get this error...
> > >
> > > fsck.ext3: Invalid argument while trying to open /dev/md0
> > > /dev/md0:
> > > 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 alternative
> > > superblock:
> > >    e2fsck -b 8193 <device>
> > >
> > > I then try e2fsck -b 8193 /dev/md0 and get the same error message.
> > >
> > >
> > >
> > > On Mon, Oct 13, 2008 at 10:38 AM, Jason Brown <ninjazjb gmail com>
> > wrote:
> > >
> > > >
> > > > >I don't use software RAID, but I would probably want to do this in
> > > rescue
> > > > mode off of disc 1.  What RAID level are you using?
> > > > 5.
> > > >
> > > >
> > > > >I know this is a silly question, but is the md driver loaded and are
> > the
> > > > md
> > > > services running?
> > > >
> > > > Services are not loaded when in maintenance mode.  The server does
> not
> > > even
> > > > mount the file systems because you cannot run FSCK on a mounted
> device.
> > > >
> > > >
> > > >
> > > > On Mon, Oct 13, 2008 at 9:39 AM, Chet Nichols III <
> > > chet nichols gmail com>wrote:
> > > >
> > > >> I know this is a silly question, but is the md driver loaded and are
> > the
> > > >> md
> > > >> services running?
> > > >> Chet
> > > >>
> > > >> On Mon, Oct 13, 2008 at 9:15 AM, Barry Brimer <lists brimer org>
> > wrote:
> > > >>
> > > >> > I don't use software RAID, but I would probably want to do this in
> > > >> rescue
> > > >> > mode off of disc 1.  What RAID level are you using?
> > > >> >
> > > >> >
> > > >> > On Mon, 13 Oct 2008, Jason Brown wrote:
> > > >> >
> > > >> >  When I tried booting it into single user mode the server would
> > still
> > > go
> > > >> to
> > > >> >> maintenance mode.  I was able to get at it another way by
>  passing
> > > >> >> "init=/bin/bash" which got me to a command prompt.  Then
> remounted
> > > the
> > > >> >> drive
> > > >> >> with rw since it was in ro mode, and then changed the password.
> >  Now
> > > I
> > > >> >> have
> > > >> >> it in maintenance mode again, I just need to figure out how to do
> > an
> > > >> fsck
> > > >> >> on
> > > >> >> a raid system.  When I try fsck /dev/md0 I got a bad super block
> > > error
> > > >> and
> > > >> >> to run e2fsck -b 8192 which gives me the same error message.
> > > >> >> Any ideas would be appreciated.
> > > >> >> Thanks.
> > > >> >>
> > > >> >> On Sun, Oct 12, 2008 at 10:57 PM, Barry Brimer <lists brimer org
> >
> > > >> wrote:
> > > >> >>
> > > >> >>  My file server locked up and I had to reboot it, when it came up
> > its
> > > >> >>> stuck
> > > >> >>>
> > > >> >>>> in the FSCK maintenance.  Is there a way that I can run this
> > > without
> > > >> a
> > > >> >>>> root
> > > >> >>>> password or reset the password?  The file system is an ext3 in
> a
> > > raid
> > > >> 5
> > > >> >>>> configuration.
> > > >> >>>>
> > > >> >>>>
> > > >> >>> I would be very cautious about interrupting an fsck.  If you
> > reboot
> > > >> your
> > > >> >>> machine and press a key to bring up the grub menu, then type 'e'
> > to
> > > >> edit
> > > >> >>> that kernel entry, move to the kernel line, hit 'a' to append ..
> > > place
> > > >> an
> > > >> >>> 's' at the end of the line and hit enter and then 'b' to boot
> you
> > > will
> > > >> >>> boot
> > > >> >>> without the root password into single user mode.
> > > >> >>>
> > > >> >>> Barry
> > > >> >>>
> > > >> >>> --
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> > > >> >>> unsubscribe mailto:redhat-list-request redhat com
> > > ?subject=unsubscribe
> > > >> >>> https://www.redhat.com/mailman/listinfo/redhat-list
> > > >> >>>
> > > >> >>>  --
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> > > >> >>
> > > >> >>
> > > >> >>
> > > >> > --
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> > > >> >
> > > >>
> > > >>
> > > >>
> > > >> --
> > > >> ----------------------------------------
> > > >> chet nichols III
> > > >> chet nichols gmail com
> > > >> aim: chet / twitter: chet
> > > >> http://chetnichols.org
> > > >> ----------------------------------------
> > > >> --
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> >
> >
> > --
> > ----------------------------------------
> > chet nichols III
> > chet nichols gmail com
> > aim: chet / twitter: chet
> > http://chetnichols.org
> > ----------------------------------------
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-- 
----------------------------------------
chet nichols III
chet nichols gmail com
aim: chet / twitter: chet
http://chetnichols.org
----------------------------------------


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