How to add Windows 7 loader to GRUB?

Question

I've successfully installed Ubuntu 11.10 alongside Windows 7. During installation I've manually changed the Windows partition size ( there were 24Gb used, I've changed virtual partition size from 100Gb to 40Gb) and killed the 150Mb partition where Windows stores system recovery data. I've installed Ubuntu on second virtual partition.

So now when the GRUB starts it cannot see the Windows installer. I think it's all OK with windows loader, just GRUB does not know about it.

So I need to specify it manually. Where and how?

score 15 · Answer 1 · answered Jan 24 '12 at 20:28

15

Run this from Ubuntu:

sudo update-grub

And reboot.

Windows should be in the Grub menu now.

answered Jan 24 '12 at 20:28

SirCharlo

39,486

Really? If update-grub didn't find Windows when you first installed Ubuntu (or any linux distro) it's unlikely to do it now. – Auspex Mar 27 '16 at 20:39
1

Running this command to find windows after first installing Ubuntu worked for me. – David Apr 29 '16 at 14:53
This worked for me as well. I really appreciate how easy this method is. – remcycles Jun 11 '18 at 19:46

score 1 · Answer 2 · answered Nov 09 '11 at 15:18

1

edit Grub menu

gksudo gedit /boot/grub/menu.lst


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sdb1
title Windows 7
root (hd1,0)
savedefault
makeactive
map (hd0) (hd1)
map (hd1) (hd0)
chainloader +1

edit /etc/fstab so windows partitions are accesible in linux:

sudo apt-get install ntfs-config

sudo ntfs-config

add mount points in /media for windows partitions

i think this will help you

answered Nov 09 '11 at 15:18

twister_void

5,924

unfortunately no file /boot/grub/menu.lst – Dan Nov 10 '11 at 13:58
These instructions do not work with GRUB 2 – osvein Jun 07 '15 at 16:35

How to add Windows 7 loader to GRUB?

2 Answers2

Linked