Re: [Xen-users] Xen boot failed while mount root FS.

[Sadique <sadique@xxxxxxxxxxxxxxxxxxx>]

I had this problem with our SCSI drive when we configured the driver as
a module. I did compile the SCSI module statically to the kernal and
created initrd image using --builtin=<module name> option and was
successful to load root partition. I had also to add fusion mtp support
to the kernel statically.


Adam Nielsen wrote:

>Hi all,
>
>I'm trying to compile my own Xen kernel and I'm now getting this same
>error:
>
>  
>
>>VFS: Cannot open root device "/" or unknown-block(0,0)
>>Please append a correct "root=" boot option
>>Kernel panic - not syncing: VFS: Unable to mount root fs on
>>unknown-block(0,0)
>>    
>>
>
>Only my kernel line says "root=/dev/sda2" - I'm positive I compiled in
>the driver for my SATA controller (it's there in the .config, assuming
>I'm reading the right one) but it still won't recognise it.  I even
>changed it to root=/dev/hda assuming it would fail with an invalid
>filesystem, but it still says "unknown-block(0,0)".
>
>While I was trying to figure out how the kernel knows what "/dev/sda2"
>means I thought I could try creating an initrd image with the
>important /dev files in it, and while the kernel recognises and loads
>the initrd file, just after that it comes up with the same error again.
>
>Any ideas what could be causing this problem?  ...Or how you're
>otherwise supposed to tell the kernel where your root partition is?
>
>Thanks,
>Adam.
>
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>
>  
>


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