Enter your login passphrase:
Inserted auth tok with sig [ee16d84] "into the user session keyring
mount: No such file or directory"
[ 156.118113] ecryptfs_mount: kern_path() failed
[ 156.118431] Reading sb failed; rc = [-2]
[ 164.233055] traps: mate-notificati trap int3 ip:7f43d7002c13 sp:7fff162c6600 error:0
[ 166.017061] ecryptfs_mount: kern_path() failed
[ 166.017323] Reading sb failed; rc = [-2]
The reason for this is that you don't have the .Private directory for your user symlinked from /home/.ecryptfs/user/.Private to your home directory or .Private does not exist (common mistake when migrating ecryptfs data to another system).
rsync -Phaz /home/.ecryptfs/yourusername/.Private ~