LVM might have locked me out

[anil rathod]

if "Filesyatem Repair"problem is occured then ypu provide the passwd of
root.
after that  check which partition is mounted using df-h command .
After that you check the labels of that partition using e2label /dev/xxx .
After that you mount all the partion and make the entery/correction into
fstab.
then run mount -a  and see the Result.


On 10/27/07, rchamberland <rchamberland at chs.ca> wrote:
>
>
> Thanks Herta, especially for refraining from making comments about newbie
> mistakes. :)
>
> I tried that and it's not looking good.  The rescue system can't find any
> existing linux system, it even says it can't see any hard drives.  I can
> get
> a shell but it doesn't see anything beyond that.  Mount /mnt/sysimg
> doesn't
> work because there is no sysimg.
>
> When I cold boot without the rescue disk I can get a wonky "filesystem
> repair" shell that gives errors and needs full command paths.  That shell
> sees the old /etc/fstab but it's read-only and vi just gives me an error
> when I try to overwrite.
>
> I think fstab may be locked by fstab-sync.  However, that command seems to
> be stored in /usr/sbin, which seems to be empty - probably messed up by my
> lvm stupidity.  On the other hand, how can that be...
>
> I'll wait until Monday and if there doesn't seem any way around it I guess
> I'll have to do a full reinstall.  Not looking forward to that but oh
> well.
>
> Rob C
>
>
>
> -----Original Message-----
> From: redhat-sysadmin-list-bounces at redhat.com
> [mailto:redhat-sysadmin-list-bounces at redhat.com] On Behalf Of Herta Van
> den
> Eynde
> Sent: Friday, October 26, 2007 4:43 PM
> To: redhat-sysadmin-list at redhat.com
> Subject: Re: LVM might have locked me out
>
> On 26/10/2007, rchamberland <rchamberland at chs.ca> wrote:
> >
> >
> >
> >
> > I'm using RHEL4.  I had a system with RAID1/5 where the RAID 5 disks
> were
> > uninitialized, so I went into LVM and created some logical volumes out
> of
> > them.  I didn't know what to mount them to so I set them to mount to /
> until
> > I figured that out.  I created the volumes, then locked the machine and
> went
> > to lunch.
> >
> >
> >
> > When I came back my password wasn't working, the lock screen won't let
> me
> > change login, and when I SSH into the machine my root and user passwords
> > aren't being accepted.  Ctl-Alt-F1 gives me a login prompt only, when I
> > enter something it just gives me another login prompt, no password
> request.
> >
> >
> >
> > Looks like I messed up.
> >
> >
> >
> > I'm not sure how to proceed now.  Any suggestions?  I'm not exactly sure
> how
> > I messed up, but I guess the OS can't find /etc/passwd now? I'm afraid
> to
> > cold reboot in case it makes the problem worse.
> >
> >
> You might be able to cold boot into single user mode.  If not, cold
> boot off an installation CD into rescue mode.  In both cases, fix
> /etc/fstab.
>
> Kind regards,
>
> Herta
>
> --
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>



-- 
Thanks and Regards,
   ANIL RATHOD
Red Hat Certified Engineer (RHCE)
_________________________
Linux System Administrator
Kalinga Data Link Pvt. Ltd.
Pune-Satara Road, Pune - 411037 India.

Mob.No. 9860062917
________________________________
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