[Bug 428785] [NEW] grub-mkconfig stops on encrypted partitions

[Rotbart van Dainig]

Public bug reported:

grub-mkconfig and subsequently, update-grub simply stop to run after
adding the memtest entry if there are LUKS partitions on the system,
thus making any update including kernel and grub updates stop - no
matter if done via Synaptics or apt-get:

Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.31-10-generic
Found initrd image: /boot/initrd.img-2.6.31-10-generic
Found linux image: /boot/vmlinuz-2.6.31-9-generic
Found initrd image: /boot/initrd.img-2.6.31-9-generic
Found memtest86+ image: /boot/memtest86+.bin
--> stop

On manual grub-mkconfig or update-grub, hitting Enter multiple times
will finish the update:

$ sudo update-grub
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.31-10-generic
Found initrd image: /boot/initrd.img-2.6.31-10-generic
Found linux image: /boot/vmlinuz-2.6.31-9-generic
Found initrd image: /boot/initrd.img-2.6.31-9-generic
Found memtest86+ image: /boot/memtest86+.bin
Found   on Password
    is not yet supported by grub-mkconfig.
Found   on Password
    is not yet supported by grub-mkconfig.
done

This is no option when running Synaptics or apt-get, though, as Enter doesn't penetrate the package install script layer - the only option is to cancel the package install script with CTRL-C.
However, that causes the grub package to be marked as partially installed, and subsequently, any update/install will trigger the package install scripts of the grub package, leading to te aformentioned problems... meaning that updates always require manual intervention.

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: grub grub-mkconfig update-grub

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grub-mkconfig stops on encrypted partitions
https://bugs.launchpad.net/bugs/428785
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