Re: Problem with kernel image in a Prep Boot on PowerPC

[John W. Linville]

On Wed, Aug 24, 2005 at 12:05:25PM -0300, Márcio Oliveira wrote:

>   I think the kernel is pointing to the wrong root partiotion. In a x86 
> box, I can change the kernel root partition in the boot loader (root= 
> parameter) or using the "rdev" command. In my case, the IBM Power 
> doesn't have a boot loader (yaboot was replaced by the kernel image) and 
> the powerpc64 system doesn't have the rdev command (from util-linux 
> package, the same package on x86 systems have the rdev command!).

I don't know anything that will do this on a pre-built kernel.  But,
you should look at CONFIG_CMDLINE_BOOL and CONFIG_CMDLINE in your
kernel configuration.  That will let you pre-configure the "root="
command line option.

I don't know if ppc64 can use the zImage-style boot wrapper.  If it
can, that would provide you with an option of modifying the command
line at boot time if needed.

Good luck!

John
-- 
John W. Linville
linville@xxxxxxxxxxxxx
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