[lxc-users] Fwd: lxc-clone -s, some files became character devices?

[술욱]

Hello,

$ dpkg -l | grep lxc
ii  liblxc1
 1.1.5-0ubuntu0.15.10.3                     amd64        Linux Containers
userspace tools (library)
ii  lxc
 1.1.5-0ubuntu0.15.10.3                     amd64        Linux Containers
userspace tools
ii  lxc-templates
 1.1.5-0ubuntu0.15.10.3                     amd64        Linux Containers
userspace tools (templates)
ii  lxcfs                                                0.10-0ubuntu2.1
                         amd64        FUSE based filesystem for LXC
ii  python3-lxc
 1.1.5-0ubuntu0.15.10.3                     amd64        Linux Containers
userspace tools (Python 3.x bindings)


yesterday I needed to play with Moodle so I made a snapshot from another
container I had.

$ sudo lxc-stop -n moodle
$ sudo lxc-clone -s moodle moodle30
$ sudo lxc-start -dn moodle30

I updated Moodle in the new container. Made some tests. And stoped the
container.

Today, I restarted the container (moodle30) and ls -l showed some weird
files, so I stoped the container.

ls -l /var/lib/lxc/moodle30/delta0/home/ubuntu/moodle shows:

-rw-rw-r--  1 sysadmin sysadmin  42250 mar  8 01:36 config-dist.php
-rw-r--r--  1 sysadmin sysadmin    691 mar  8 01:35 config.php
c---------  1 root     root       0, 0 mar  8 01:35 config.php~

Note config.php~

Now, after starting the container again, ls (inside the container) doesn't
show those 'c' files.

Backend FS is ext4

Is this a know bug of -s with ext4 backend? Is there any way to avoid it
(going to lvm/btrfs/zfs is not an option right now but I can accept it for
future deployments).

Thanks!

Norberto
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