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bleakcabal
Guru
Joined: 10 Oct 2002
Posts: 301
Location: Montreal, Québec, Canada
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 Posted: Wed May 25, 2005 6:37 pm Post subject: Dual boot machine, grub won't start, boot right into windows |
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Hi, I have a machine that had a window installation. I installed Gentoo, the first time I booted it said windows did not shut down properly due a hardware problem and it started in window right thru. Now it just starts windows no grub.
I have the following partitions :
/hda1 Windows install ( primary boot )
/hda2 Boot partition ( logical )
/hda3 Swap partition ( logical )
/hda4 Root partition ( logical )
When I installed Grub, I did
root (hd0,1)
setup (hd0,1)
quit
And my grub.conf goes something like this :
[...]
title=Gentoo Linux
root (hd0,1)
[...]
title=Windows
root (hd0,0)
chainloader (hd0,0)+1 |
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nixnut
Bodhisattva
Joined: 09 Apr 2004
Posts: 10974
Location: the dutch mountains
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| Posted: Wed May 25, 2005 6:47 pm Post subject: |
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| Code: | root (hd0,1)
setup (hd0,1)
quit |
You installed grub in the second partition of your harddisk instead of the mbr.
Try setup (hd0) instead
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MickKi
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Joined: 08 Feb 2004
Posts: 1173
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| Posted: Wed May 25, 2005 7:13 pm Post subject: |
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. . . and under NO circumstances should you be tempted to try setup (hd0,0) because that will wipe your WinXP partition boot sector with Grub's files and WinXP will never, ever boot again (short of a re-install).
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Mick |
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nixnut
Bodhisattva
Joined: 09 Apr 2004
Posts: 10974
Location: the dutch mountains
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| Posted: Wed May 25, 2005 7:30 pm Post subject: |
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| MickKi wrote: | | . . . and under NO circumstances should you be tempted to try setup (hd0,0) because that will wipe your WinXP partition boot sector with Grub's files and WinXP will never, ever boot again (short of a re-install). |
Actually, that's not true, but it is a bit of a bother to fix things after such a mistake.
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MickKi
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Joined: 08 Feb 2004
Posts: 1173
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| Posted: Wed May 25, 2005 9:39 pm Post subject: |
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| nixnut wrote: | | MickKi wrote: | | . . . and under NO circumstances should you be tempted to try setup (hd0,0) because that will wipe your WinXP partition boot sector with Grub's files and WinXP will never, ever boot again (short of a re-install). |
Actually, that's not true, but it is a bit of a bother to fix things after such a mistake. |
Well, it is true in my case, counting on my limited knowledge!  I guess grub would overwrite the Windoze partition boot code, but probably leave alone the block parameter table? No idea how to put it right other than using dd from a back up, or as I said reinstalling . . . 
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Mick |
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Apewall
Apprentice
Joined: 01 Dec 2004
Posts: 248
Location: USA
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| Posted: Wed May 25, 2005 9:42 pm Post subject: |
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put this at the top of your grub
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Installing Gentoo
