Fedora Core 3 GRUB Menu

MunsterCycling · 18-07-2006 12:26pm #1

Right, I did a yum update on a core 3 machine that we run and having had no probs with the update on other machines I commented out the old kernel from the GRUB boot menu.

Question: How can I access the filesystem so that I can edit the GRUB menu again? The machine is not booting fully, not letting me use runlevel 3 even.

TIA

Anything I'm leaving out then ask.

Its using LogicalVol's

dahamsta · 18-07-2006 12:37pm

Use something like Damn Small Linux to boot from CD, then mount it?

MunsterCycling · 18-07-2006 1:16pm

Will give that a go, not too hopeful though.

Steveire · 18-07-2006 4:32pm

At the grub prompt, type 'e' I think to edit the command sequence. That's not permanent though. Once you've booted, you'll have to sudo nano it or whatever to save it. Look up the grub documentation if you don't know enough about the grub command line. It's very good.

flamegrill · 18-07-2006 6:49pm

boot off the FC cd, type linux rescue

it'll boot up and ask you do you want to search for FC installs. Let it do this. Then cd into /mnt/sysimage/ and do chroot /mnt/sysimage/

Then you can edit the menu.lst file by hand and then do grub-install

That should do it for you.

MunsterCycling · 18-07-2006 7:40pm

flamegrill wrote:

boot off the FC cd, type linux rescue

it'll boot up and ask you do you want to search for FC installs. Let it do this. Then cd into /mnt/sysimage/ and do chroot /mnt/sysimage/

Then you can edit the menu.lst file by hand and then do grub-install

That should do it for you.

Cheers Flamegrill, thought I was looking at a re-install there for a while.

MC

dahamsta · 18-07-2006 8:03pm

flamegrill wrote:

boot off the FC cd

Gah! Of course he already has a CD, silly me. Sorry OP.

electrofelix · 19-07-2006 10:43pm

Why do people have to make it so awkward by using the CD?

Learn to use grub's shell

on the negative side I can't remember if grub has auto completion so you may have to know the names of the kernel image and initrd your want too boot from.

Steveire · 19-07-2006 10:50pm

It has autocompletion. No worries there

MunsterCycling · 20-07-2006 7:53pm

Worked a charm flamegrill, all fine and Dandy now. Cheers

MC

Fenster · 21-07-2006 7:43pm

I was going to suggest using single mode, but it looks like you got it fixed

MunsterCycling · 21-07-2006 10:26pm

Yeah, up and running again in less than 2 mins, thanks all the same.

MC

Fedora Core 3 GRUB Menu

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