TrueCrypt is already running
If a messagebox TrueCrypt is already running appears when starting TrueCrypt, check for a hidden file in the home directory of the concerned user called .TrueCrypt-lock-username. Substitute username with the individual username. Delete the file and start TrueCrypt again.
Deleted stale lockfile
If you always get a message “Delete stale lockfile [….]” after starting Truecrypt, the Truecrypt process with the lowest ID has to be killed during Gnome log out. A user in the Ubuntuforum provided the following solution: edit
/etc/gdm/PostSession/Default
and add the following line before exit 0:
kill `ps -ef | grep truecrypt | tr -s ‘ ‘ | cut -d ‘ ‘ -f 2`
Issues with Unicode file / folder names on NTFS volumes
Should files resp. folders containing Unicode characters in their names be incorrectly or not at all displayed on TrueCrypt NTFS volumes (while e. g. being correctly handled on non-encrypted NTFS partitions), first verify that you have the NTFS-3G driver installed and then create the following symlink as root:
ln -s /sbin/mount.ntfs-3g /sbin/mount.ntfs
That will cause TrueCrypt to automatically use this driver for NTFS volumes, having the same effect as the explicit use of
truecrypt –filesystem=ntfs-3g /path/to/volume
via the console.
One may also consider setting e. g.
rw,noatime
amongst other options in the TrueCrypt GUI (Settings → Preferences → Mount Options).