installed xp on linux sys now grub 22

paul85 · 10-20-2006, 08:40 PM

I just installed xp on /dev/hda. ubuntu was installed on /dev/sdb3 and fedora on /dev/sda2. Now when I attempt to load linux (default ubuntu) I'm getting Grub error 22. can I fix this.

**Bartender** · 10-21-2006, 07:46 AM

The rule of thumb is "install Windows first". Windows has overwritten your Master Boot Record (MBR) so your 2 Linux installs cannot be found although they may well be perfectly intact.
You can fix but I'm not able to do or explain it.

Skie · 10-21-2006, 11:21 AM

Has the number of partitions or order of them changed in anyway? It sounds like Grub is not able to find the information that it needs. Boot from your Ubuntu disk and go to a command line. From there, type: grub-install

If that doesn't work, double check your /boot/grub/grub.conf file and make sure everything is listed properly.

paul85 · 10-21-2006, 08:13 PM

I had switched the bios boot sequence to boot from sdb first because I had it originally set up with an ntfs partition, before I installed the ide.

First place i should have looked.

If I change the device map to this:
(hd0) /dev/sda
(hd1) /dev/sdb
(hd2) /dev/hda

and add these lines to menu.list

# title Windows XP
root (hd2,0)

will the dual boot work? do i need to change fstab as well?

Skie · 10-21-2006, 08:52 PM

That may work, but you'll have to experiment to try it out. In either case, I think it's best to re-run grub-install.

10-20-2006, 08:40 PM	#1 (permalink)
paul85 Registered User Join Date: Oct 2006 Posts: 2 OS: ubuntu, fedora,xp	installed xp on linux sys now grub 22 I just installed xp on /dev/hda. ubuntu was installed on /dev/sdb3 and fedora on /dev/sda2. Now when I attempt to load linux (default ubuntu) I'm getting Grub error 22. can I fix this.

10-21-2006, 11:21 AM	#3 (permalink)
Skie Manager, Alternative Comp Join Date: Mar 2003 Location: Chicago burbs Posts: 2,194 OS: Gentoo Linux, CentOS, OS X My System	Has the number of partitions or order of them changed in anyway? It sounds like Grub is not able to find the information that it needs. Boot from your Ubuntu disk and go to a command line. From there, type: grub-install If that doesn't work, double check your /boot/grub/grub.conf file and make sure everything is listed properly. __________________

10-21-2006, 08:52 PM	#5 (permalink)
Skie Manager, Alternative Comp Join Date: Mar 2003 Location: Chicago burbs Posts: 2,194 OS: Gentoo Linux, CentOS, OS X My System	That may work, but you'll have to experiment to try it out. In either case, I think it's best to re-run grub-install. __________________

10-21-2006, 07:46 AM	#2 (permalink)
Bartender Mentally divergent Join Date: Jun 2005 Location: Chehalis, WA, USA Posts: 1,285 OS: W2K, Ubuntu 8.04	The rule of thumb is "install Windows first". Windows has overwritten your Master Boot Record (MBR) so your 2 Linux installs cannot be found although they may well be perfectly intact. You can fix but I'm not able to do or explain it.

10-21-2006, 08:13 PM	#4 (permalink)
paul85 Registered User Join Date: Oct 2006 Posts: 2 OS: ubuntu, fedora,xp	I had switched the bios boot sequence to boot from sdb first because I had it originally set up with an ntfs partition, before I installed the ide. First place i should have looked. If I change the device map to this: (hd0) /dev/sda (hd1) /dev/sdb (hd2) /dev/hda and add these lines to menu.list # title Windows XP root (hd2,0) will the dual boot work? do i need to change fstab as well?