Can't reboot after Debian update

[Brad Hein]

I've encountered situations where the kernel takes a long time to boot my
hardware. Its strange if you were getting an error though and it just went
away - sounds flaky. In my case it was my notebook PC, and I was booting a
Knoppix thumb drive I built. It took literally 1-2 minutes of it sitting
there idle before it would load.

Glad you got it working!


On Tue, Jul 29, 2008 at 1:44 PM, Zembower, Kevin <kzembowe at jhuccp.org>wrote:

> Just to bring this thread to a close, I tried a bunch of things, trying
> to boot from the old kernel, but had no success. I could boot it under
> Knoppix 5.1 and it saw all the disks and partitions fine. I decided to
> boot it normally one last time, thinking it would stop at the same
> error, and walked away from it in our server room, and went back to my
> desk to write more emails asking for further help.
>
> Imagine my surprise when I started getting diagnostic emails from this
> host. I went back into the server room, where I discovered that this
> host had fixed itself and booted successfully. Wow, this Dell hardware
> is something else.
>
> This is the same host that I wrote about previously in
> http://lists.us.dell.com/pipermail/linux-poweredge/2008-May/036318.html.
> It reports a +5v backplane voltage below threshold four or more times a
> day. I'm guessing I just booted it the last time when it was above the
> threshold and it worked. This host has worked with this condition since
> May, but I don't think I'm going to be rebooting it any time soon.
>
> Thanks for the help and suggestions.
>
> -Kevin
>
> -----Original Message-----
> From: Danny Butroyd [mailto:danny.butroyd at bigmouthmedia.com]
> Sent: Tuesday, July 29, 2008 10:57 AM
> To: Zembower, Kevin
> Cc: linux-poweredge at lists.us.dell.com
> Subject: Re: Can't reboot after Debian update
>
> Zembower, Kevin wrote:
> > I'm hoping someone here can help me with this urgent problem. I just
> > applied the updates that became available in the last couple days to
> my
> > Debian etch host running on a Dell PowerEdge 2450 server. This
> included
> > an update to the kernel, so I rebooted the host. The host failed to
> > restart. The first error message on the console was '/init /init
> cannot
> > open /dev/root no such device.' Just before that, it said "mounting
> root
> > file system. Running /scripts/local-top." It finally ended by dropping
> > me into BusyBox, with which I'm not familiar.
> >
> > There were no earlier indications of problems with the output to the
> > console. All the output concerning /dev/sda, where all my directories
> > are partitioned, seemed normal. This host uses a Dell PERC 3/Si card
> to
> > provide RAID-5.
> >
> > Can anyone help me correct this problem? Any suggestions of commands
> to
> > run in BusyBox to either fix or diagnose this?
> >
> Does booting the old kernel work?  It should be in the list!
>
> Danny
> > Thanks in advance for your help, advice and suggestions.
> >
> > -Kevin
> >
> > Kevin Zembower
> > Internet Services Group manager
> > Center for Communication Programs
> > Bloomberg School of Public Health
> > Johns Hopkins University
> > 111 Market Place, Suite 310
> > Baltimore, Maryland  21202
> > 410-659-6139
> >
> >
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