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dago
Asked: 2011-05-15 05:42:41 +0800 CST

Grub-update doesnt find the other OS anymore

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I installed Grub customizer. Unfortunetly I unticked search for other OS. This action worked and gub-update shows only the current ubuntu 11.04 (I have also Windows and another ubuntu installed). Afterwards I ticked the "search for other OS" again, but still grub-update shows only my ubuntu 11.04. Does anybody know how to "teach" grub to look again for other OS?

grub2

1 Answers

  1. Best Answer

    To make grub recognise other OSes, os-prober needs to be installed and the related GRUB configuration file needs to be existent and executable.

    Make sure you've os-prober installed:

    sudo apt-get install os-prober

    Running stat -c%A /etc/grub.d/30_os-prober should give -rwxr-xr-x. If it's not executable (i.e. missing the x), make it executable by running:

    sudo chmod 755 /etc/grub.d/30_os-prober
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