Changing the Reserved Space On EXT Partitions within TrueCrypt volumes

Mount the volume without mounting the filesystem inside
#/usr/bin/truecrypt -t --filesystem=none /path/to/encrypted_container


Find out where it is mounted with
# /usr/bin/truecrypt -l

In my case it is /dev/mapper/truecrypt2

Verify the reserved block count
#tune2fs -l /dev/mapper/truecrypt2  | grep "Reserved block count"

Reserved block count:     48734

Change it to zero
#tune2fs -m 0  /dev/mapper/truecrypt2

Dismount the volume (I did it with the GUI)