Невозможно открыть TUN / TAP dev / dev / as0t0: нет такого файла или каталога (errno = 2)

Я просто попытался установить OpenVPN Access Server на свой Debian VPS, использующий OpenVZ. Он установился нормально, однако когда я пытаюсь запустить его из панели администрирования, я получаю следующие ошибки:

process started and then immediately exited: ['Sat Sep 22 19:14:33 2012 Cannot open TUN/TAP dev /dev/as0t0: No such file or directory (errno=2)']
service failed to start or returned error status
process started and then immediately exited: ['Sat Sep 22 19:14:33 2012 Cannot open TUN/TAP dev /dev/as0t1: No such file or directory (errno=2)']
service failed to start or returned error status
process started and then immediately exited: ['Sat Sep 22 19:14:33 2012 Cannot open TUN/TAP dev /dev/as0t2: No such file or directory (errno=2)']
service failed to start or returned error status
process started and then immediately exited: ['Sat Sep 22 19:14:33 2012 Cannot open TUN/TAP dev /dev/as0t3: No such file or directory (errno=2)']
service failed to start or returned error status
process started and then immediately exited: ['Sat Sep 22 19:14:33 2012 Cannot open TUN/TAP dev /dev/as0t4: No such file or directory (errno=2)']
service failed to start or returned error status
process started and then immediately exited: ['Sat Sep 22 19:14:33 2012 Cannot open TUN/TAP dev /dev/as0t5: No such file or directory (errno=2)']
service failed to start or returned error status
process started and then immediately exited: ['Sat Sep 22 19:14:33 2012 Cannot open TUN/TAP dev /dev/as0t6: No such file or directory (errno=2)']
service failed to start or returned error status
process started and then immediately exited: ['Sat Sep 22 19:14:33 2012 Cannot open TUN/TAP dev /dev/as0t7: No such file or directory (errno=2)']
service failed to start or returned error status

Есть ли решение для этого?