[ Kernel not booting up ]

[Vladimir Murzin]

On Sun, Aug 21, 2011 at 12:15 AM, ashish raste <rasteashish at gmail.com> wrote:
> Hi Srivatsa,
>
> On 8/20/11, Srivatsa Bhat <bhat.srivatsa at gmail.com> wrote:
>> Hi Ashish,
>>
>> On Sat, Aug 20, 2011 at 3:48 PM, ashish raste <rasteashish at gmail.com> wrote:
>>
>>> Hi all,
>>>
>>> Recently I compiled and tried installing kernel (2.6.39.3), which I
>>> downloaded from kernel.org
>>> All the activity that I did was to copy the .config file of my distro
>>> (Ubuntu 10.10), then the following commands :
>>>
>>> - make menuconfig ( I exited, keeping the default configuration )
>>>
>>
>> You can execute 'make localmodconfig' after this, to ensure that you have
>> all the necessary
>> components enabled in the .config file. It also strips off all the
>> unnecessary ones, which will speed up
>> your compilation.
>
> I didn't do a 'make localmodconfig' after this.
>
>>
>> Did you forget to run 'make' after this stage?
>>
>> - make modules
>>> - make install_modules
>>>
>
> Yes, I ran make and make install_modules after this stage. Forgot
> writing it in my previous mail.
>
>>
>> I run 'make modules_install' here...
>>
>> - make install
>>> - update grub
>>>
>>> All of the above commands got executed without any errors, and the new
>>> kernel version was also shown in the grub menu. But it showed some
>>> errors and didn't login.
>>>
>>> When I tried logging to my Ubuntu distro, a blue login box(which is
>>> normally violet in color) appeared. After giving password, it came
>>> back again to the same screen without going inside.
>>>
>>> Only thing I was able to do was to dropping in root mode (from
>>> Ubuntu's recovery mode u\in the grub menu) and looking at all of my
>>> data through terminal without a GUI.
>>>
>>> Do you see a prompt like this ?:
>> grub>
>
> I didn't see a prompt of grub> Instead the following errors were
> listed on the black screen :
>
> [  2.4331....] Error: Driver 'mdio-gpio' is already registered. aborting...
> [  2.8364... ] Kernel panic - not syncing: VFS: Unable to mount root
> fs on unknown-block(0,0)
> [ .........     ] Pid: 1. comm: swapper Not tainted 2.6.39.3 #1
> [ ......        ] Call Trace:
>
> and list of errors in this trace.
>
>
> --
> ~Cheers!!
> Ashish Raste
>
> Anyone who has never made a mistake has never tried anything new.
> -Sir Albert Einstein
>
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>
Hi Arshish!

Looks like you forgot to add support for your ATA/SATA controller.

I suppose you should boot up with any working kernel (maybe provided
with LiveCD) and use this config as starting point for your custom
building:

zcat /proc/config.gz > .config
make
and so on...