Errors on LXC Container Shutdown

What can I do to get rid of these messages ? These occur on shutdown from an OEL 6.5 container running on Ubuntu 15.04.

Unmounting file systems: [ OK ]
umount2: Permission denied
umount: /proc/uptime: block devices not permitted on fs
umount2: Permission denied
umount: /proc/sys/fs/binfmt_misc: block devices not permitted on fs
umount2: Permission denied
umount2: Permission denied
umount: /proc/stat: block devices not permitted on fs
umount2: Permission denied
umount: /proc/meminfo: block devices not permitted on fs
umount2: Permission denied
umount: /proc/diskstats: block devices not permitted on fs
umount2: Permission denied
umount: /proc/cpuinfo: block devices not permitted on fs
umount2: Permission denied
umount: /dev/pts: block devices not permitted on fs
init: Re-executing /sbin/init
mount: you must specify the filesystem type
Halting system...
gstanden@u1504:~$

Thanks,

Gilbert