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Although I have several kernel versions in /boot and having them in my grub.cfg, they are not displayed in the grub boot menu.

Running update-grub seems to work, as it puts the kernels in the grub.cfg in /boot/grub. Issueing it gives the following output:

Generating grub.cfg ...
cat: /boot/grub/video.lst: Datei oder Verzeichnis nicht gefunden
Found linux image: /boot/vmlinuz-3.2.0-31-generic
Found initrd image: /boot/initrd.img-3.2.0-31-generic
/usr/sbin/grub-probe: Fehler: no such disk.
/usr/sbin/grub-probe: Fehler: no such disk.
Found linux image: /boot/vmlinuz-3.2.0-30-generic
Found initrd image: /boot/initrd.img-3.2.0-30-generic
/usr/sbin/grub-probe: Fehler: no such disk.
/usr/sbin/grub-probe: Fehler: no such disk.
/usr/sbin/grub-probe: Fehler: no such disk.

I don't know how to fix that problem. Reinstalling grub via live cd did not help.

share|improve this question
up vote 3 down vote accepted

Boot your computer on a Ubuntu live-CD or Live-USB.

  • choose "Try Ubuntu"
  • connect to Internet
  • open a new Terminal (Ctrl+Alt+T), then type:

    sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update
  • Press Enter.

  • Then type:

    sudo apt-get install -y boot-repair && boot-repair  
  • Press Enter
share|improve this answer
Unfortunately this is not working, in the end it recognizes that I am working with a encrypted partition: Encrypted partition detected. Please retry after opening it ( But I am not sure what exactly from that big page I need to do, to enable it. – Markus Sep 26 '12 at 9:04
It seems you have an have encrypted your partition so you have to decypt before you can login read the page link given for you – user61928 Sep 26 '12 at 9:31
Yes, it was a encrypted partition and opening it helped. – Markus Sep 28 '12 at 7:09

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