On Mon, 30 Jan 2012, Yasha Karant wrote:

> We had a massive power failure, beyond what the UPS could handle.
> Despite attempts to find a way for the system to shut down gracefully,
> it simply powered down without unmounting the disk partitions.
> Nominally, the backup local UPS I am using (APC Back-UPS 650) has an
> interface Port DB-9 RS-232 but I have not found any Linux application
> that reliably would communicate with this model of UPS (that is, emulate
> the same behavior as the application available from APC for MS Win that
> senses the RS-232 information from APC, waits the appropriate time, and
> then shutdown -- anyone found one?).
>
> Upon boot, automatic fsck failed, and a request was posted for root
> password.  However, no more than one character of the password would be
> accepted, causing an endless loop to this condition and not allowing me
> control of the system (run fsck manually).
>
> I then booted into the rescue image on the SL 6 bootable installation
> DVD.  I manually ran fsck on  all the partitions except for the one that
> was mounted on /mnt/sysimage.  However, before issuing a reboot, I did
> umount /mnt/sysimage, and verified using mount that the partition was
> not mounted.  I issued reboot, but the system evidently had not done a
> clean umount, fsck again failed (on just the one partition that had been
> mounted on /mnt/sysimage), and I had to repeat the above procedure, but
> NOT mounting anything.  Rather, I did fsck -y /dev/sda5 (as /dev/sda5
> just happens to be the partition that had been mounted on and unmounted
> from /mnt/sysimage), sync, sync, sync, reboot -- and everything worked.

Please send me a map of the partitions and where they are normally 
mounted along with a "rpm -qa" .  Please send this to just me at 
[log in to unmask] .

  >
> Both of these TUV bugs need to be fixed (password for manual control,
> umount not cleanly unmounting for the rescue system) -- I do not care if
> the fix is from Fermilab/CERN stock SL following TUV or from ElRepo or
> another non-TUV compliant chain that does fix the problem.  I am running
> SL 6x X86-64 current.
>
> Yasha Karant
>

-Connie Sieh