kernel panic after fresh install

[Rajinder Yadav]

On 10-11-06 09:16 PM, Ijaaz A. Ullah wrote:
> On Sat, Nov 6, 2010 at 8:55 PM, Rajinder Yadav<devguy.ca-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>  wrote:
>> On 10-11-06 07:57 PM, Amanda Yilmaz wrote:
>>>
>>> On Sat, 06 Nov 2010 12:37 -0400, "Rajinder Yadav"<devguy.ca-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>
>>> wrote:
>>>>
>>>> Guys I am having a problem after a fresh installed of Xubuntu 10.10 on
>>>> my old server. I get a kernel panic, the 1st line of the message says:
>>>>
>>>> Kernel panic - not syncing: VFS: Unable to mount root fs on
>>>> unknown-block(0,0)
>>>>
>>>> Here is a copy of the boot info script output, can someone tell me how I
>>>> might be able to get my system to bootup? I am able to boot into my
>>>> system and mount my root / filesystem.
>>>
>>> This may be going out on a limb, but just how old is your server? In
>>> particular, what kind of processor does it have? Maverick is the first
>>> *ubuntu to require a P6-class processor; P5-class machines such as the
>>> Pentium MMX, AMD K6 series, Cyrix MII, etc. need not apply.
>>>
>>> What is the output of /proc/cpuinfo?
>>>
>>> Amanda
>>
>> I am in the lost process of building the kernel. But I know the CPU is AMD
>> Athlon 1000+, I can install Debian 5.0 just fine.
>>
>> I installed Xubuntu on my laptop in VMWare and I really like the simple
>> clean feel, so I thought it would be good to throw it on my old box that I
>> am using as a test server.
>>
>> Also I can boot off the (alternative) install CD I am using, drop into
>> console mode after I mount my / root filesystem. So if that kernel image
>> works for me, what the heck is going wrong? I can't figure this out. I've
>> tried google and nothing really helpful about
>>
>> Kernel panic - not syncing: VFS: Unable to mount root fs on
>> unknown-block(0,0)
>
> It sounds like your grub line is wrong..  What does grub.cfg show?  it
> sounds like the root entry is wrong.
>
> boot off of the live cd, mount your root partition (mount /boot if needed)
> run:
>
> grub-install --root-directory=<where you mounted the drive>  /dev/sdX
>
> where X is the drive
>
> i.e. grub-install --root-directory=/mnt /dev/sda
>
> unmount the partition(s) and try to boot from the drive.

I've tried that several times it doesn't fix the problem, even with a 
rebuilt kernel i am still seeing the problem.

-- 
Kind Regards,
Rajinder Yadav | DevMentor.org | Do Good! ~ Share Freely

GNU/Linux: 2.6.35-22-generic
Kubuntu x86_64 10.10 | KDE 4.5.1
Ruby 1.9.2p0 | Rails 3.0.1
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