bekir@hede:~$ dd if=/dev/zero of=/free/test bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 0.452559 s, 232 MB/s



bekir@hede:~$ sudo mkfs.ext4 /free/test
mke2fs 1.42 (29-Nov-2011)
/free/test is not a block special device.
Proceed anyway? (y,n) y
Discarding device blocks: done
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
Stride=0 blocks, Stripe width=0 blocks
25688 inodes, 102400 blocks
5120 blocks (5.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=67371008
13 block groups
8192 blocks per group, 8192 fragments per group
1976 inodes per group
Superblock backups stored on blocks:
    8193, 24577, 40961, 57345, 73729

Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done



bekir@hede:~$ grep /free /var/lib/lxc/mongo/config
lxc.mount.entry=/free/test /var/lib/lxc/mongo/rootfs/free ext4 user,loop 0 0



bekir@hede:~$ sudo lxc-start --logpriority DEBUG --logfile /dev/tty  --name mongo
      lxc-start 1329594597.879 DEBUG    lxc_console - using '/dev/tty' as console
      lxc-start 1329594597.880 DEBUG    lxc_start - sigchild handler set
      lxc-start 1329594597.880 INFO     lxc_start - 'mongo' is initialized
      lxc-start 1329594597.882 DEBUG    lxc_conf - instanciated veth 'veth-mongo/vethdn3mk0', index is '70'
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/' (rootfs)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/sys' (sysfs)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/proc' (proc)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/dev' (devtmpfs)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/dev/pts' (devpts)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/run' (tmpfs)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/' (ext4)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/lib/init/rw' (tmpfs)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/run/lock' (tmpfs)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/tmp' (tmpfs)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/media/sd-mmcblk0p1' (vfat)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/run/shm' (tmpfs)
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - checking '/cgroup' (cgroup)
      lxc-start 1329594597.886 INFO     lxc_cgroup - found cgroup mounted at '/cgroup'
      lxc-start 1329594597.886 DEBUG    lxc_cgroup - cgroup /cgroup has flags 0x2
      lxc-start 1329594597.904 INFO     lxc_cgroup - created cgroup '/cgroup/mongo'
      lxc-start 1329594597.904 DEBUG    lxc_cgroup - checking '/free' (ext4)
      lxc-start 1329594597.904 DEBUG    lxc_cgroup - checking '/home' (ext4)
      lxc-start 1329594597.904 DEBUG    lxc_cgroup - checking '/var/lib/nfs/rpc_pipefs' (rpc_pipefs)
      lxc-start 1329594597.904 DEBUG    lxc_cgroup - checking '/sys/fs/fuse/connections' (fusectl)
      lxc-start 1329594597.904 DEBUG    lxc_cgroup - checking '/proc/fs/nfsd' (nfsd)
      lxc-start 1329594597.905 DEBUG    lxc_conf - move 'eth0' to '17444'
      lxc-start 1329594597.905 INFO     lxc_conf - 'mongo' hostname has been setup
      lxc-start 1329594597.917 DEBUG    lxc_conf - mac address '02:00:c0:a8:ad:0b' on 'eth0' has been setup
      lxc-start 1329594597.917 DEBUG    lxc_conf - 'eth0' has been setup
      lxc-start 1329594597.917 INFO     lxc_conf - network has been setup
      lxc-start 1329594597.917 DEBUG    lxc_conf - mounted '/var/lib/lxc/mongo/rootfs' on '/usr/lib/lxc'
      lxc-start 1329594597.918 DEBUG    lxc_conf - mounted 'proc' on '/usr/lib/lxc//proc', type 'proc'
      lxc-start 1329594597.918 DEBUG    lxc_conf - mounted 'devpts' on '/usr/lib/lxc//dev/pts', type 'devpts'
      lxc-start 1329594597.918 DEBUG    lxc_conf - mounted 'sysfs' on '/usr/lib/lxc//sys', type 'sysfs'
      lxc-start 1329594597.918 ERROR    lxc_conf - Block device required - failed to mount '/free/test' on '/usr/lib/lxc//free'
lxc-start: Block device required - failed to mount '/free/test' on '/usr/lib/lxc//free'
      lxc-start 1329594597.918 ERROR    lxc_conf - failed to setup the mount entries for 'mongo'
lxc-start: failed to setup the mount entries for 'mongo'
      lxc-start 1329594597.918 ERROR    lxc_start - failed to setup the container
lxc-start: failed to setup the container
      lxc-start 1329594597.918 ERROR    lxc_sync - invalid sequence number 1. expected 2
lxc-start: invalid sequence number 1. expected 2
      lxc-start 1329594597.918 ERROR    lxc_start - failed to spawn 'mongo'
lxc-start: failed to spawn 'mongo'
      lxc-start 1329594597.918 DEBUG    lxc_cgroup - destroying /cgroup mongo

      lxc-start 1329594597.932 DEBUG    lxc_cgroup - '/cgroup/mongo' unlinked
bekir@hede:~$