FC4 can't boot after updates
Matthew Saltzman
mjs at ces.clemson.edu
Mon Aug 1 15:44:58 UTC 2005
On Mon, 1 Aug 2005, Claude Jones wrote:
> On Mon August 1 2005 7:14 am, Matthew Saltzman wrote:
>> On Sun, 31 Jul 2005, Claude Jones wrote:
>>> A friend has just been possibly bit by the bug that emerged after a
>>> recent kernel update. I read Thomas Chung's piece in the recent
>>> FedoraNews about this, but he stresses that the workaround of running
>>> Kudzu to fix modprobe.conf has to occur BEFORE the kernel update. Has
>>> anyone been able to fix a system after the fact?
>>
>> You still have the old kernel. When you see the startup splash screen on
>> bootup, press a key. That takes you to a menu of kernels. Choose the
>> second-most recent option.
>>
>> Then rpm -e the new kernel, run kudzu, and reinstall the new kernel.
>>
>
> Thanks, Matthew. I thought of the same thing, although I'd suggested he
> try to boot into a previous kernel. His problem is that the boot gets
> stuck right before the blue splash screen, when the word "grub" briefly
> flashes in the upper left hand corner of the screen - right at that
> point, his machine just stops. Any other suggestions?
*Before* the first splash screen? Then apparently GRUB is hosed. So I
would try:
(1) Boot from Rescue CD. It will find your installation and offer to
mount it under /mnt/sysimage. Mount it r/w.
(2) chroot /mnt/sysimage
(3) rpm -e the newest kernel. Verify that /etc/grub.conf makes sense.
(4) Reboot into the latest still-installed kernel.
(5) Run kudzu, then update the kernel again.
If (4) fails, post your /etc/grub.conf (you can read it if you carry out
(1)-(3) again).
--
Matthew Saltzman
Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs
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