I have Freya with an encrypted partition and decided to try Veracrypt. It created a partition I'll named like /dev/mnt/veracrypt7. After fiddling with the app, I gave up thinking I'm already well served with my encrypted partition.
I tried to eject the mounted drive using Freya's file manager, which asked me to force eject, and I accepted. Then I went to veracrypt's windows and saw the volume still there, and could not eject it through it giving a "volume in use" error. The funny thing is, in elementary OS File manager the volume looks ejected, but if I click on it it will mount again without asking for a password. Unable to unmount it, I decided to reboot.
That's when the problem began. I can boot to Freya without a problem until the login screen. There, when I put the password and try to enter, the screen goes black for a second, then back to the login screen. I believe this happens because Pantheon could be trying to mount an inexistent partition, closed due to rebooting.
How could I verify what error is happening during the login? Is there a way to remove any references to the /dev/mnt/veracrypt7 partition so the system cannot try to mount it again?