I was in a situation similar to akwala's, post #13
(http://unix.stackexchange.com/questions/1367/how-to-test-swap-
partition). In my case I use Mint 17 Rebecca (based on Trusty).
In this case, both "encrypt home" and "encrypt the full partition" have
been selected during installation.
I believe that the need for an encrypted swap in this case is not that
important if the system is to be used by a single user: the swap
partition (in akwala's case, /dev/mapper/kubuntu--vg-swap_1) resides in
an encrypted disk anyway.
Of course, one could choose to reinstall and select only "encrypt the
full partition" and not "encrypt home". In my particular case, I am
interested in also encrypting home because I use rsync to back up my
(encrypted) home dir (i.e., /home/.ecryptfs/my_username/.Private) to an
untrusted machine.
So, my fix consists in configuring my fresh Mint 17 installation to use
/dev/mapper/mint--vg-swap_1 (which is encrypted) as a non-encrypted swap
partition:
* Format the swap partition:
sudo mkswap /dev/mapper/mint--vg-swap_1
(for ubuntu, replace mint--vg-swap_1 by ubuntu--vg-swap_1, for other
releases, run "sudo fdisk -l" and adapt the name accordingly)
* Edit /etc/fstab:
- comment out the line starting with: /dev/mapper/cryptswap1
- if not there, add a line for mounting mint--vg-swap_1 as a regular swap
partition:
/dev/mapper/mint--vg-swap_1 none swap sw 0 0
(if needed, replace mint--vg-swap_1 as described above)
* Edit /etc/crypttab and comment out the line starting with: cryptswap1
* Reboot
* After reboot verify that the swap was mounted:
$ swapon -s
Filename Type Size Used Priority
/dev/mapper/mint--vg-swap_1 partition 4075516 0 -1
$ free
total used free shared buffers cached
Mem: 4000156 1266520 2733636 15452 25604 524712
-/+ buffers/cache: 716204 3283952
Swap: 4075516 0 4075516
$ sudo swapoff /dev/mapper/mint--vg-swap_1
(no errors)
$ sudo swapon -a
(no errors)
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https://bugs.launchpad.net/bugs/953875
Title:
Encrypted swap no longer mounted at bootup
To manage notifications about this bug go to:
https://bugs.launchpad.net/ecryptfs/+bug/953875/+subscriptions
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