Nested Encryption (eCryptfs home-folder on encrypted partion) after update to Ubuntu 14.04

[Hans-Gregor Gehrke]

Hi,

after upgrading from Ubuntu 13.10 to 14.04 my home-dir was automatically encrypted using eCryptfs. Although useful, my home-dir is within an encrypted volume. And now encryption is nested. As a result, my data-throughput dropped to 30 Mb/s (120 MB/s before on SSD within encrypted volume)
I did solve the problem by removing the encryption layer added by eCryptfs (ecryptfs-setup-private --undo). Now I would like to suggest adding a user query for adding the encryption during update, at least, if encrypted volumes are already in use for the home-dir.

regards Gregor

[Hans-Gregor Gehrke (b-u6untu-r)]

I use the 64bit Standard Ubuntu, I updated using the graphical update client. My homefolder is within an encrypted (cryptsetup-luks) partition mounted automatically via crypttab and fstab.

[Brian Murray (brian-murray)]

Did you boot off a CD to complete the upgrade or did you use something on your Ubuntu system?

[Hans-Gregor Gehrke (b-u6untu-r)]

I used the graphical "Software Updater", which is also used for regular updates (clicking on major system update). The update was started from the encrypted system, all required packages were downloaded from default sources defined in the Ubuntu repertory. During the update procedure I chose all default option (none related to encryption but rather to configurations of e.g Mysql etc.)

(Also the decryption was done using just the installed system by coping the data of "home" to a different hard drive, removing the home folder (using a different sudo-account), finally. restore home directory without encryption. This procedure is probably best done from pure command-promt to avoid troubles with locked files in the cache caused by the graphical interface.)

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]