[Linux-disciples] Unable to mount root fs on unknown-block(0,0)

[Adam Kessel]

Yup, that was me (the Debian link).

I could never figure out this problem.  Kernels 2.6.x work on most of my
systems, except that one where I always get the unknown-block error.

Apparently there are many different causes for that error. I received
several suggestions, but none of them worked.

It's rather amazing that it worked once for you, though.

I don't really have any advice or ideas; it sounds like your errors might
be from an outdated version of gcc etc.?  

Also, you probably shouldn't be doing make makeinstall etc., you should
use the Debian kernel tools, kernel-package.

You build the kernel with:

fakeroot make-kpkg kernel_image

or if you want to give it a name

fakeroot make-kpkg --append-to-version=-karl kernel_image

Or

fakeroot make-kpkg --append-to-version=-karl --revision=1 kernel_image

And then install the resulting DEB file.  Try that and see if you still
get ldd errors.

On Fri, Jun 18, 2004 at 08:11:58AM -0700, Karl Sokol wrote:
> I have been spending the last week trying to upgrade
> to 2.6.6 from 2.2.20-idepci on my debian machine.  I
> continually get "Unable to mount root fs on
> unknown-block(0,0)".  That is, except for once, when
> it in fact worked (as checked with uname -a). 
> Unfortunately, I do not know how I had things set up. 
> I then went and changed some of the modules (make
> menuconfig; make; make modules install) and I am back
> to Unable to mount root fs on unknown-block(0,0).  I
> learned a valuable lesson about documentation.  I have
> done a bazillion different combinations of modules to
> no luck.  I have done a very thorough google search,
> including a rather disheartening 
> http://lists.debian.org/debian-user/2004/04/msg11005.html
> to no avail.  
> 
> My scrambled mind thinks that when it worked, I had
> compiled the kernel repeating a step twice, per
> something that I read on a web-site.  I have not been
> able to find that site. 
> 
> It is undoubtedly connected to the rather early
> problem of...
> "Setting up kernel-image-2.6.6-1-k7 (2.6.6-1) ...
> ldd: /lib/ld-linux.so.2 exited with unknown exit code
> (139)
> Failed to create initrd image.
> dpkg: error processing kernel-image-2.6.6-1-k7
> (--configure):
>  subprocess post-installation script returned error
> exit status 9
> Errors were encountered while processing:
>  kernel-image-2.6.6-1-k7
> E: Sub-process /usr/bin/dpkg returned an error code
> (1)
> Ack!  Something bad happened while installing
> packages.  Trying to recover:
> Setting up kernel-image-2.6.6-1-k7 (2.6.6-1) ...
> ldd: /lib/ld-linux.so.2 exited with unknown exit code
> (139)
> Failed to create initrd image.
> dpkg: error processing kernel-image-2.6.6-1-k7
> (--configure):
>  subprocess post-installation script returned error
> exit status 9
> Errors were encountered while processing:
>  kernel-image-2.6.6-1-k7"
> 
> What puzzles me is how I got it to work at all.
> 
> Any ideas? 
> 
> 
> =====
> Grace and peace,
> Karl
> 
> 
> 		
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-- 
Adam Kessel
http://adam.rosi-kessel.org