Re: Multibooting

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Satish Balay wrote:
On Thu, 25 Nov 2004, Satish Balay wrote:
On Thu, 25 Nov 2004, Paul Howarth wrote:


So, when a new kernel is to be added, how does grubby know whether to add an
entry with "root=LABEL=/" or "root=LABEL=/1"?

Hmm - you got me there.. I have't tried this out myself. Someone else mentioned this scheme to me.


Looks like grubby is called from /sbin/new-kernel-pkg - when a new
kernel is installed.  It has:

*************
    rootdevice=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $1; }}' /etc/fstab)

        /sbin/grubby --add-kernel=$bootPrefix/$kernelName-$version $INITRD    \
                     --copy-default $makedefault --title "$title"           \
                     --args="root=$rootdevice $kernargs"            \
                     --remove-kernel="TITLE=$title"

*************

So it grabs the 'root' partition from /etc/fstab - and uses it. So the
correct root-label is always used when kernel gets updated. (i.e no
problem with this scheme :) )

As Obi-wan Kenobi would have said, "Use the source, Luke" ;-)

This looks quite a nice, neat solution, but who's going to try it out...?

Paul.


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