To: linux-lvm@redhat.com In-reply-to: <20040302154631.GB12779@tykepenguin.com> (message from Patrick Caulfield on Tue, 2 Mar 2004 15:46:32 +0000) Subject: Re: Adding xfs module to the initrd-lvm BCC: kfuchs@unicycling.org References: <20040302152911.GI15556@tangerine.coulon.evette> <20040302154631.GB12779@tykepenguin.com> --text follows this line-- >On Tue, Mar 02, 2004 at 04:29:11PM +0100, Jean-Luc Coulon (f5ibh) wrote: >> I would like to add the xfs module to the lvm created by >> lvmcreate_initrd. >> >> Is there a mean to do that easily? >> So I have to mount and existing one and add the module by hand? Patrick Caulfield wrote: >I suspect that's the easiest way if that's what you really need to do. >> So I have to use the standard initrd tools? >You could edit the existing lvmcreate_initrd to add the module (look >for lvm-mod and write some similar code underneath it). > >But the easiest way, by far, is to have your kernel with XFS compiled >into it rather than as a module! An alternative is to simply modify the initrd manually (Very easy and rather straightforward): Make a backup copy of the initrd. (If the initrd is compressed, uncompress it using gunzip.) # mount -o loop /boot/initrd-<version> /data1 # cp -p /lib/modules/<version>/kernel/fs/xfs/xfs.o /data1/lib/modules/<version>/kernel/fs/xfs/ <Destination directory can be anywhere as long as insmod arg in linuxrc matches.> # <edit> /data1/linuxrc <Add insmod command to insert module xfs.o.> /bin/insmod /lib/modules/<version>/kernel/fs/xfs/xfs.o # umount /data1 (If the initrd was compressed, compress it using gzip.) # shutdown -r now Rather than replace the original initrd, one could copy and modify it and make a new lilo or grub entry for the old kernel/modified initrd. This allows one to boot from the original kernel/initrd in case the modified initrd contains a mistake that prevents proper booting. Sincerely, Ken Fuchs <kfuchs@winternet.com> _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
