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Old 04-29-2010, 09:09 PM   #1
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Registered: Apr 2010
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Installed update to Ubuntu 9.10, stuck in GRUB version 1.97~beta4


I installed a generic update for Ubuntu and left my laptop. When I came back, it was frozen on the desktop - I couldn't click anything on the GUI so I restarted.

Now it's restarting into 'GNU GRUB version 1.97~beta4'
with sh:grub>
as a terminal.

So I try to boot it, using these instructions/commands:

set prefix=(hdX,Y)/boot/grub
set root=(hdX,Y)
ls /boot
insmod /boot/grub/linux.mod
linux /vmlinuz root=/dev/sdxY ro
initrd /initrd.img

but I can't figure out which partition Ubuntu is on, so I tried it with all of them (ie hd(0,6) , hd(0,5) , hd(0,1) ) but none of them will work.
I also don't know how to bring up the config file...

The error that comes up is:

error: invalid magic number

after I type 'linuz /vmlinuz root=/dev/sda1'
(or any other number after if I'm setting root as hd(0,6) and I use sda0 or sda6 it still gives me this error).

Any help would be greatly appreciated!

I installed Ubuntu 9.10 for the first time on my laptop a few weeks ago. I partitioned the drive, but I didn't get around to installing Windows on the other partition, so it's a single hard drive with only one OS - it's a laptop as well.
Old 04-30-2010, 02:10 PM   #2
Registered: Mar 2008
Location: US
Distribution: Debian Sid; Sabayon, UbuntuStudio, Slackware-multilib 13.1, Peppermint Ice, CentOS
Posts: 575

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If you just installed a few weeks ago, I would consider reinstalling using Ubuntu 10.04 (just out yesterday). Also, if you're planning on dual-booting linux and windoze, it's generally easiest to install windoze first, then letting grub install to the mbr when you do your linux install. Grub does a good job of finding windoze and adding it to the boot menu automagically. Windoze just overwrites the mbr (doesn't even bother to look for another OS).

Last edited by brucehinrichs; 04-30-2010 at 02:14 PM.
Old 05-02-2010, 11:15 PM   #3
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Registered: Apr 2010
Posts: 2

Original Poster
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Thanks for that, yeah I just booted from a disk, transferred the files I had across to my portable hard drive and reinstalled.


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