Upgraded from 18.04 to 18.10. All worked well until I shut down. Now when I boot up, I get the login loop. Enter passphrase and go back to main login screen.
I did the CTRL+ALT+F3 and find that my /home/steve folder contains only one directory and 4 linked files.
I also see just after the command line login the message "mount: Bad address"
sudo ecryptfs-recover-private It found /home/.ecryptfs/steve/.Private
I entered the login passphrase and see this series of messages:
Inserted auth tok with sig [193135fb7689a807] into user session keyring mount: /tmp/ecryptfs.skNK9k22: mount(2) system call failed: Bad adderss. ERROR: Failed to mount private data at [/tmp/ecryptfs.skNK9k22]
That directory does exist in /tmp with privs drwk------ for root root
folder ecryhptfs.skNK9k22 contains only the . and .. directories.