<HTML>
<HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META content="OPENWEBMAIL" name=GENERATOR>
</HEAD>
<BODY bgColor=#ffffff>
I went through the exact same thing just recently Gregg. Hit one of my customers on two BX servers, but not three others - after a power outage long enough that the UPSes failed.
<br />
<br />It appeared the kernel had updated, but without updating everything. I'm not sure if the problem was the difference in the /boot/grub/grub.conf file versus the /etc/grub.conf file. Or if it was the startup files in /boot/ that load the LVM drivers so the kernel can boot from the LVM partition.
<br />
<br />But I found a simple fix. Boot with the rescue disk and mount the partitions. Go into the /boot/grub/grub.conf file. Remove the "hiddenmenu" command. Save and reboot.
<br />
<br />Now when you try to boot the machine - the Grub boot menu will come up. Select the oldest kernel and boot it. That one SHOULD work. Once you've got the machine running, you can repair the /boot/grub/grub.conf file, its drivers in the /boot directory, and the /etc/grub.conf file. Then the latest kernel should boot.
<br />
<br />
<br />Have you seen that one before Michael??
<br />
<br />
<br />
<br />Chuck
<br />
<br />
<br />
<br /><font size="2"><b>---------- Original Message
-----------</b>
<br />
From: "Gregg K" <greggk1@cox.net>
<br />
To: "'BlueOnyx General Mailing List'"
<blueonyx@mail.blueonyx.it>
<br />
Sent: Thu, 15 Aug 2013 20:28:17 -0700
<br />
Subject: [BlueOnyx:13549] Re: Crashed drive
<br />
<br />> Sorry about the lack of information earlier, I wrote from my phone.
It is
<br />>
stalling with the kernel panic when it's trying to load the LVM volume. On
<br />>
a rescue cd I can't see the hard drive. I assume the the LVM volume is
<br />>
corrupt, it won't load the /home directory.
<br />>
<br />>
> -----Original Message-----
<br />>
> From: blueonyx-bounces@mail.blueonyx.it [mailto:blueonyx-
<br />>
> bounces@mail.blueonyx.it] On Behalf Of Michael Stauber
<br />>
> Sent: Thursday, August 15, 2013 7:52 PM
<br />>
> To: BlueOnyx General Mailing List
<br />>
> Subject: [BlueOnyx:13548] Re: Crashed drive
<br />>
>
<br />>
> Hi Greg,
<br />>
>
<br />>
> > I had major hard drive issues today. Now that I'm back up I have two
<br />>
> > BOs that will not boot. They have kernel panic. What can I do? I
<br />>
> > downloaded a rescue cd but I still can't do a check disk on the drive.
<br />>
> > Please give me some ideas. Thanks
<br />>
>
<br />>
> I'm sorry to hear that. But that's not much information to assist you
<br />>
> with. When does the kernel panic happen? Right after boot, or when
<br />>
> starting services. Does it always happen after starting the same
<br />>
> service(s) or randomly?
<br />>
>
<br />>
> What's the matter with the rescue CD? When you boot with the BlueOnyx CD
<br />>
> inserted, you can choose the "Rescue Mode" option (second option
from
<br />>
> the bottom).
<br />>
>
<br />>
> That will boot a live-cd image which allows you to choose language and
<br />>
> keyboard settings, allows you to configure the network and gives you the
<br />>
> option to mount the disks.
<br />>
>
<br />>
> If you mount the disks, you can use "chroot /mnt/sysimage"
afterwards to
<br />>
> work on the disks as if you had booted off them directly. Well - almost.
<br />>
> But it allows you to install/uninstall stuff or to modify files or do
<br />>
> some diagnostics.
<br />>
>
<br />>
>
<br />>
> One of the diagnostics I'd run is an "rpm -Va" to see which files
were
<br />>
> modified from their original RPM provided state. This usually shows all
<br />>
> the modified config files, but if it shows modified binaries, then
<br />>
> that's often (but not always) a good indication that something might be
<br />>
> wrong with that file.
<br />>
>
<br />>
> The question would also be if the kernel panics happen while you're in
<br />>
> rescue mode.
<br />>
>
<br />>
> Although Kernel panics can be software related it's more common to see
<br />>
> them when there is flaky hardware. A screenshot of the error message
<br />>
> during a kernel panic could be helpful to troubleshoot this further.
<br />>
>
<br />>
> --
<br />>
> With best regards
<br />>
>
<br />>
> Michael Stauber
<br />>
> _______________________________________________
<br />>
> Blueonyx mailing list
<br />>
> Blueonyx@mail.blueonyx.it
<br />>
> <a target="_blank" href="http://mail.blueonyx.it/mailman/listinfo/blueonyx">http://mail.blueonyx.it/mailman/listinfo/blueonyx</a>
<br />>
<br />>
_______________________________________________
<br />>
Blueonyx mailing list
<br />>
Blueonyx@mail.blueonyx.it
<br />>
<a target="_blank" href="http://mail.blueonyx.it/mailman/listinfo/blueonyx">http://mail.blueonyx.it/mailman/listinfo/blueonyx</a>
<br /><b>------- End of Original Message
-------</b>
<br />
</font>
</BODY>
</HTML>