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ShanaXXII
Apprentice
Joined: 29 Jun 2014
Posts: 283
Location: Canada
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 Posted: Sun Mar 15, 2015 10:44 pm Post subject: Grub2 can/can't detect Windows partition |
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I installed Gentoo on one of my laptops. The installation was seamless.
This is what my harddrive looks like:
[---Gentoo---][--Windows recovery--][-----Windows-----]
But whenever I'm booted into Gentoo and do # grub2-mkconfig -o /boot/grub/grub.cfg | Code: | # grub2-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.17.8-gentoo
done |
The Windows partition is not found.
I can bypass this by booting into the Gentoo Installation Media, chrooting and running the command. | Code: | # mount /dev/sda1 /mnt/gentoo
# cd /mnt/gentoo/
# mount -t proc proc /mnt/gentoo/proc
# mount --rbind /sys /mnt/gentoo/sys
# mount --rbind /dev /mnt/gentoo/dev
# chroot /mnt/gentoo /bin/bash
# grub2-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.17.8-gentoo
Found Windows Vista (loader) on /dev/sda2
done |
Why is this happening and how can I fix it?
EDIT:
I installed os-prober during installation |
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tclover
Guru
Joined: 10 Apr 2011
Posts: 516
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| Posted: Mon Mar 16, 2015 9:33 am Post subject: |
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Well then, follow GRUB2 article on the wiki to do it--either by creating a custom file for windows and edit the grub.cfg by hand to include an entry.
I am off for debugging os-prober which I never have any use of.
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