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I'm in a bit of a pickle. I have just done an upgrade from 13.10 to 14.04, then I rebooted the machine and now the drive/partition is gone, so it boots into memtest.

The drive was encrypted during installation (13.04) using full disk encryption. The update to 13.10 went without issues.

If I use a LiveUSB I can mount the drive just fine, so I assume it's a GRUB problem, but I can't really figure out what's wrong. Does anyone know a way to make the disk visible again from a LiveUSB?

The computer is a Lenovo X1 Carbon, so the SSD is non-removable (The SSD is visible in the BIOS).

Tim
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Brian Højen-Sørensen
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1 Answers1

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If you can mount the drive from the live CD, I would set up a chroot environment, and then chroot into the partition. Then, you can use update-grub or similar to fix grub. I assume you mount your cryptfs into /mnt/ and you use grub.

Setting up chroot

Taken from here, run as root:

for f in proc sys dev ; do mount --bind /$f /mnt/$f ; done

To set up the /dev/proc etc.

Starting the chroot

sudo chroot /mnt

Repair Grub

update-grub

That should update your grub setup. After that you are all done, reboot.

If that does not work, we need more detail on your grub configuration and partitions.

Community
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noleti
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  • The update of grub worked fine, but unfortunately it didn't solve the problem. I really appreciate the answer, but my solution in the end was just to copy what I needed to my server, and install a fresh 14.04. – Brian Højen-Sørensen Aug 04 '14 at 07:36
  • @user3592047 Sure, also good. Have fun with the X1, I also have one :) – noleti Aug 04 '14 at 11:46