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

From: John W. Linville (linville_at_tuxdriver.com)
Date: 08/24/05

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    Date:	Wed, 24 Aug 2005 12:31:04 -0400
To: Márcio Oliveira <moliveira@latinsourcetech.com>

    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@tuxdriver.com
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