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On Wednesday 05 Oct 2011 16:32:10 Lavender wrote: |
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> The configuration of win kernel in grub.conf is like below: |
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> |
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> rootnoverify (hd0,0) |
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> makeactive |
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> chainloader +1 |
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Assuming that your MSWindows OS is on the first partition of the first (master) |
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disk then the above is correct and grub should boot it fine; i.e. MSWindows is |
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on /dev/sda1 |
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> It worked yesterday , but after I rebuilding grub software, it can't work. |
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> I don't know why, it still can boot gentoo kernel, I am confused,because |
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> grub only can do operations to MBR, it can not influence contents on |
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> windows partition. |
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This is not entirely correct. GRUB will write its boot code where-ever *you* |
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tell it to write it ... |
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For example if you installed it on MSWindows' partition - instead of the disk |
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MBR - you will most likely not be able to boot MSWindows! This is because you |
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have overwritten the partition table with GRUB's code and GRUB cannot natively |
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boot MSWindows. |
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If for example you ran: |
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grub-install /dev/sda1 |
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instead of the correct stanza of: |
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grub-install /dev/sda |
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you would have written GRUB on the wrong place, the first partition boot |
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record, instead of the disk's Master Boot Record. Of course your old GRUB |
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code in the MBR is still there and it happily boots Linux. |
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> I also tried boot manually in grub command interface, but after showing |
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> "load stage2" it goes back to grub > .... I'm gonna pissed..... I have |
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> many important things in windows system, will someone figure it out? |
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Calm down. |
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Your data is still there. Just the partition table has been overwritten - if |
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indeed you typed the wrong device as I suspect above. So the command you need |
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is fixboot and you need to run this from a MSWindows installation CD/USB stick |
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on the first partition. |
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Have a look on the Internet for more details on the fixboot command and its |
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modern equivalent (if you're running Windows7). Also have a look on the |
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Internet for MSWindows CDs or USB sticks to be able to run the command if you |
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don't have one handy. |
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HTH. |
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-- |
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Regards, |
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Mick |
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