[opensuse-factory] Fixing the machine after kernel 2.6.21-10
I have updated my installation with this kernel from factory and it didn't boot anymore (it didn't see the hard-disk). The problem that I'm most concerned about is not this. What is much more serious is that I haven't been able to fix it to boot again. Perhaps I didn't do the right things. I'm gonna describe what I've tried, and if there's something more that could be done, please tell me. 1. Update the kernel 2.6.21-8 to 2.6.21-10, along with a good number of other packages (including hal) 2. Reboot, see that it doesn't work (it doesn't see the storage) 3. Look if the old kernel is still on disk. It isn't. Perhaps it should do a backup called vmlinuz-backup that gets overwritten at each update, so the directory doesn't become full of backups. 4. Decided to install back the old kernel with rpm --upgrade --force 5. boot the alpha4 DVD in rescue mode 6. mkdir /tmp/local mount /dev/sda4 /tmp/local cp [...]/kernel-2.6.21-10[...].rpm /tmp/local chroot /tmp/local rpm --upgrade --force kernel-2.6.21-8[...].rpm At which point I got a lot of errors, probably from the mkinitrd script that didn't see the hard-disk, because the device it's created dynamically at runtime, if I'm correct. 7. I have corrected grub/menu.lst by editing it and tried booting, but it gave the same error (not seeing the disk), probably because the initrd image is invalid. I ended up doing a fresh reinstall. This is not good. Someone with enough knowledge should be able to fix this situation without reinstallation. So either I don't have sufficient knowledge (easily fixable and not a distribution problem) or it can't be done--quite bad. Which one is it? --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org
On Fri, 25 May 2007, Silviu Marin-Caea wrote:
I have updated my installation with this kernel from factory and it didn't boot anymore (it didn't see the hard-disk).
The problem that I'm most concerned about is not this. What is much more serious is that I haven't been able to fix it to boot again. Perhaps I didn't do the right things. I'm gonna describe what I've tried, and if there's something more that could be done, please tell me.
1. Update the kernel 2.6.21-8 to 2.6.21-10, along with a good number of other packages (including hal)
2. Reboot, see that it doesn't work (it doesn't see the storage)
3. Look if the old kernel is still on disk. It isn't. Perhaps it should do a backup called vmlinuz-backup that gets overwritten at each update, so the directory doesn't become full of backups.
4. Decided to install back the old kernel with rpm --upgrade --force
5. boot the alpha4 DVD in rescue mode
6. mkdir /tmp/local mount /dev/sda4 /tmp/local cp [...]/kernel-2.6.21-10[...].rpm /tmp/local
Seems you forgot the 3 bind mounts before chrooting? mount --bind /proc /tmp/local/proc mount --bind /dev /tmp/local/dev mount --bind /sys /tmp/local/sys
chroot /tmp/local rpm --upgrade --force kernel-2.6.21-8[...].rpm At which point I got a lot of errors, probably from the mkinitrd script that didn't see the hard-disk, because the device it's created dynamically at runtime, if I'm correct.
7. I have corrected grub/menu.lst by editing it and tried booting, but it gave the same error (not seeing the disk), probably because the initrd image is invalid.
I ended up doing a fresh reinstall. This is not good. Someone with enough knowledge should be able to fix this situation without reinstallation.
So either I don't have sufficient knowledge (easily fixable and not a distribution problem) or it can't be done--quite bad.
Which one is it?
-- Mit freundlichen Gruessen, Andreas Vetter Fakultaet fuer Physik und Astronomie Tel: +49 (0)931 888-5890 Universitaet Wuerzburg Fax: +49 (0)931 888-5508 --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org
On Friday 25 May 2007 09:25:14 am Andreas Vetter wrote:
mount --bind /proc /tmp/local/proc mount --bind /dev /tmp/local/dev mount --bind /sys /tmp/local/sys
Ok, thanks, didn't think of this. Now that you've said it, it becomes clear to me that these are needed. Was it documented in some obvious place that I didn't look? This is the solution to another problem I didn't know how to solve since the changes in the device system, that is how to reinstall grub from rescue system. Thanks a lot. --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org
mount --bind /proc /tmp/local/proc mount --bind /dev /tmp/local/dev mount --bind /sys /tmp/local/sys
could this be documented on the rescue system itself? when needed, one may don't have a net link, and it's really very smalll jdd -- http://www.dodin.net http://gourmandises.orangeblog.fr/ --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org
2007/5/25, Silviu Marin-Caea
I have updated my installation with this kernel from factory and it didn't boot anymore (it didn't see the hard-disk).
Some small tip for future: avoid changing kernel. It's much safer to add new kernel next to one already installed. You just have to use "rpm" in console. -- Rafał Miłecki
participants (4)
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Andreas Vetter -
jdd -
Rafał Miłecki -
Silviu Marin-Caea