CentOS 5 :: GRUB Won't Boot Windows?

Jun 9, 2009

OK Here's how it was:

1 I have 2 SATA drives - The first (/dev/sda) is a Windows only drive The second (/dev/sdb) has a Linux Partition + Swap (sdb1 and sdb2) of 40GB and the rest is an ntfs partition(sdb3)

I used to have Ubuntu on the Linux partition that nicely detected Windows, installed the bootloader on sda and correctly set up the boot options, everything "Just worked"!

Since I'm studying for RHCT I decided to wipe Ubuntu for CentOS, Centos also nicely detected an "Other" operating system, but it decided to install the bootloader to sdb. After a few minutes of frustration I realised this had happened and changed the BIOS to boot sdb instead of sda. While GRUB now happily boots CentOS, When I select Windows it just hangs.

I tried grub-install /dev/sda and changing the BIOS to boot sda, all I got was GRUB GRUB GRUB printed on the screen and then nothing happens.

get both OSes to boot? I suspect that windows doesn't like it if the bootloader is on a different drive to it's own partition.

UPDATE

It's OK I tried again to grub-install /dev/sda and changed the /boot/grub/device.map file and reversed the hd0 and hd1 entries, i then edited the menu.lst file and did the same, it now boots both OSes ok. The only downside is the nice CentOS background is missing in Grub now :)

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[Code]...

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[Code]...

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