On Wed, Oct 17, 2007 at 06:06:52PM +0200, Kai Schaetzl wrote: > Luciano Rocha wrote on Wed, 17 Oct 2007 16:08:31 +0100: > > > mount uses /etc/mtab for displaying current mounts, which is invalid > > when starting the boot. Check /proc/mounts for the correct values. > > > > You can switch to rw with: > > mount / -o remount,rw > > > > And then you'll be able to change fstab. > > Yeah, this worked, thanks. I'll write that down :-) > It would be nice if the system would ignore the problems with md2 and md3 and > boot nevertheless as in this case it would have been harmless. > > > the b option to init/boot boots in emergency mode. > > If needed, where would I do that? Can I do an init -b 3 in the repair shell > or > where would I do this?
In the bootloader (grub, lilo, syslinux). When selecting what to boot, append the option to the kernel options (-b for emergency boot, 1 or s for single user mode, init=/bin/bash to use bash as init). In grub, you can edit entries with key 'e', and append directly (if not booting Xen) with key 'a'. > > > Seems to be OK. What is happening is that you're telling the system to > > check the filesystems that where in the MDs in fstab. As there's none > > (it's lvm now), the boot process complains and drops you to a shell. > > Indeed. I thought that using LVM manager would make the necessary changes > (whatever they were) for me. I always avoided LVM as much as I could until > recently and when I used it I did that already during installation. This was > the first time I changed this stuff on a running system. I learned something > today :-) I added the /dev/mapper entries as mounts to fstab now and > remounted > all and everything is well. Thanks for the quick help! > > I have a small question, though: one of the LVM partitions is used for a > (non-active) Xen VM and I cannot mount that as ext3. I know I have to unmount > before I can run the VM on it. I want to have a look in it. Is there a way to > mount it? xdva isn't recognized as a filesystem. Mount outside the VM? The disks created under RHEL 5/Centos 5/Fedora 7 have partitions inside, you'll have to use kpartx to create local partitions pointing to the correct areas in the image. kpartx -va /dev/mapper/... should do that, see the manual page for more details (man kpartx). -- lfr 0/0
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