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Old 06-24-2010, 08:29 PM   #1
Registered: Aug 2009
Location: Calgary, AB, Canada
Distribution: Ubuntu
Posts: 51

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I already have Ubuntu installed on /dev/sda1/ but i would like to install Windows 7 now on /dev/sdb2. My goal is to manually set boot priority in my BIOS to boot from either one. So my question is, by installing Windows 7 on sdb2 will i still be able to boot from sda1 if i select it as primary boot drive in BIOS, or will it still wipe my MBR and Grub2 on sda1?
Old 06-24-2010, 08:37 PM   #2
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Registered: Apr 2008
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windows will overwrite your master boot record without asking or notifying you that it is being done so that you will need to either re-install Grub bootloader or modify the windows 7 bootloader to boot Ubuntu.

I'm not sure if I understand your situation? You indicate Ubuntu is on sda1 and you want to install win 7 on sdb2? Are you installing win 7 on a second hard drive or a second partition of the same drive?
Old 06-24-2010, 08:49 PM   #3
Registered: Aug 2009
Location: Calgary, AB, Canada
Distribution: Ubuntu
Posts: 51

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Rep: Reputation: 15
Sorry if i was not clear. I know it will erase the MBR if you install it on the same drive, i plan on installing it to a different drive (sdb2=2nd partition of 2nd drive). Doesn't each drive have its own MBR? I plan to do this by manually selecting which drive to boot from in my BIOS. Or will windows erase the MBR on all drives, even if i selected it to install to a different one?


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