Question

1

Windows 7 doesn't show in GRUB menu

rated 0 times [ 1] [ 0] / answers: 1 / hits: 1859 / 2 Years ago, sat, december 25, 2021, 8:58:01

I have dual boot with Ubuntu and Windows 7. I needed to reinstall W7 and after that I reinstalled grub so that I could access both Ubuntu and W7.

Unfortunately my GRUB menu doesn't show W7. I tried update-grub, I also tried os_prober and then update-grub. I also tried boot-repair, but none of these seemed to work. Here is my bootinfoscript output:

http://pastebin.com/QD8Bx0jQ

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ormlai

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2 Years ago

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answered 2 Years ago landarre · Accepted Answer

I noticed that the script lines from the os_prober are not inserted in the grub script file at all. Maybe there is an error in the file:

/etc/grub.d/30_os_prober

It normally should show itself even if no other os is detected. You could purge grub-common and reinstall it, but maybe it is more safe to download grub-common.deb and just take the file from there.
If you run

sudo grub-mkconfig | grep prober

you should see the script beginning and ending. If this is not working no matter if your windows boot works or not, it will not show up.