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Old 01-22-2008, 11:03 AM   #1
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Question reinstall windows on a dual boot


i m having fc7 with windows xp on a dual boot.. and they work perfectly.
but now i have to reinstall windows and also i wish to preserve my linux..

wat shud i do,plz help
Old 01-22-2008, 11:06 AM   #2
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Ugh - this is a situation I've encountered many times before, and have yet to find a decent solution to. *sorry*

Do you have the two OS'es on separate drives?
Old 01-22-2008, 11:09 AM   #3
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yes, both the os are on seperate partitions..

Old 01-22-2008, 11:12 AM   #4
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Re-installing windows should not harm Linux unless you let windows reformat the Linux partition. Be very careful. Windows may try to reformat the Linux partition for ntfs as a default option that you have to manually override.

However, windows will install it's bootloader to the MBR and you won't be able to boot Linux until you boot a liveCD or the Linux install CD to re-install grub.

My suggestion, make a boot disk for Linux before re-installing windows. Then, when windows is done, put the boot disk in the drive and reboot to get into Linux and re-instal grub to the MBR.
Old 01-22-2008, 11:18 AM   #5
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this is what i want to know... i am having the fedora dvd by which i had installed it...
now after reinstalling windows what should i do to reinstate the grub.

Old 01-22-2008, 12:19 PM   #6
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ditto the idea of the boot disk (floppy)

To make the boot disk (from Linux):
root (hdx,y)
setup (fd0)

x=drive number, y=partition number (both starting from 0) e.g. /dev/hda2 is (hd0,1) in "grub-speak"
The drive and partition is the one where linux /boot is

After installing Windows:
boot into Linux with the boot disk
root (hdx,y)
setup (hd0)
puts grub back into the MBR of the first drive
Old 01-30-2008, 07:10 AM   #7
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srry for responding late..

actually i do not hav a floppy drive.. so is there a way to do the job using a cd



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