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Yesterday, I had RAID installed on my computer with Windows 7. I deleted the RAID so it would wipe both drives, and then installed Ubunutu on the first HD. Today, I went into Ubuntu, used Gparted to partition the second HD so I could have Windows 7 on the second. After I finished instlling Windows 7 on the second drive, it does not give me the option to pick Ubuntu or Windows 7 on startup. Is it not showing because its starting the second HD on startup by default and not the first? I would really like to know how I can boot back into my Ubuntu. Thank you.

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From this link:

4) Re-install GRUB

Now you have windows 7 but it has completely eaten your boot loader so you need to re-install grub. Boot from the ubuntu live cd and go to terminal. Type in terminal:

sudo grub
grub> find /boot/grub/stage1

That should return your Ubuntu partition in the form of (hdX,Y), use that:

grub> root (hdX,Y)
grub> setup (hd0)
grub> quit
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