I am running Kubuntu 12.10 on a LUKS-encrypted disk. The whole thing is working fine(*), but... on my previous PC, where I had a an unencrypted 10.04, I would get the Grub menu on startup, allowing me to choose a boot image or to run memtest. But I don't get this menu when I boot 12.10, it goes direcrtly to the LUKS passphrase. I did have a glimpse of the menu a couple of times... without knowing what made it show up (and didn't have the time to make a choice).
The grub.cfg is indeed listing 3 images and memtest86. Is there something special to do to activate the menu? Or some key combo to get the menu when booting?
(*) one caveat though: there isn't that much space on /boot, so you can only get 3 or 4 kernels images before it fills up. And the automatic installations of new images don't clean up the old ones. I don't know what happens when the disk fills up while a new image is configured.... it may not be pretty.
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