ubuntu@ubuntu:~$ sudo cryptsetup luksOpen /dev/sda3 ubuntu-root
Enter passphrase for /dev/sda3: 
Key slot 0 unlocked.
ubuntu@ubuntu:~$ mkdir /media/ubunturoot
mkdir: cannot create directory `/media/ubunturoot': Permission denied
ubuntu@ubuntu:~$ sudo mkdir /media/ubunturoot
ubuntu@ubuntu:~$ sudo -s
root@ubuntu:~# mount /dev/mapper/ubuntu-root /media/ubunturoot
mount: unknown filesystem type 'LVM2_member'
root@ubuntu:~# vgchange -a y
  2 logical volume(s) in volume group "ubuntu" now active
root@ubuntu:~# mount /dev/mapper/ubuntu-root /media/ubunturoot
mount: unknown filesystem type 'LVM2_member'

Line 1: error: stray '@' in program
Line 1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'ubuntu'
Line 4: error: stray '@' in program
Line 5: error: stray '`' in program
Line 5: error: missing terminating ' character
Line 6: error: stray '@' in program
Line 7: error: stray '@' in program
Line 8: error: stray '@' in program
Line 8: error: stray '#' in program
Line 31: warning: character constant too long for its type
Line 10: error: stray '@' in program
Line 10: error: stray '#' in program
Line 12: error: stray '@' in program
Line 12: error: stray '#' in program
Line 31: warning: character constant too long for its type