[dm-crypt] how to get a full disk encryption running on Linux Mint 17
dm-crypt_mailing_list at schmidt9.de
Thu Jun 12 13:42:35 CEST 2014
having used a Windows-based Truecrypt encryption with
pre-boot-authentication for some years, I want to do the corresponding
action under Linux. I am using Linux Mint 17 Cinnamon. The system has
I already found, read and unsuccessfully tried out
Both tutorials / scripts refer to older Linux versions.
Since I am new to Linux I do not know, what syntaxes may have changed.
I got things working so far, using a VirtualBox machine, (so Mint 17 x32
- 200 MB primary partition ext3 on /dev/sda1 (unencrypted) as /boot
- 9,81 GB crypt-luks on /dev/sda2 (as seen from GParted)
This configuration boots up GRUB, Mint's green/white dots start flashing.
Then I think a timeout appears - message reads:
"Gave up waiting for root device ...
ALERT /dev/mapper/ubuntu-root does not exist - dropping to a shell."
When I boot up from CD, start "Preferences - Disks"
I can use the built-in unlock feature and I see
Physical Volume (LVM2 001)
which consists of
/dev/ubuntu/swap (4.1 GB)
/dev/ubuntu/root (5.2 GB)
/dev/ubuntu/home (1.2 GB)
So, the partions exist and can be unlocked.
I also can mount e.g. /dev/ubuntu/root
Mounted at /media/mint/fc34585c-ca63-4b28-aaca-5a00f3776856
There is /etc/fstab present.
/dev/mapper/ubuntu-root / ext4 errors=remount-ro
# /boot was on /dev/sda1 during installation
UUID=30b080b5-9b39-46c9-9b61-2320efde52dc /boot ext3
defaults 0 2
/dev/mapper/ubuntu-home /home ext4 defaults
/dev/mapper/ubuntu-swap none swap sw
There is a good deal accomplished on my way to a disk encryption, but
some small problems still prevent it from running flawlessly.
I wish to have the system booting up and asking for the passphrase to
unlock all three partitions at once.
Help would be appreciated.
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