Hi All,
I am trying to build a very lean, purpose-built container. I started with a xenial image from ubuntu repo and see that it comes with lxd installed.
Is it safe to remove lxd,lxc,liblxc1 etc?
I am also seeing that trying to remove lxcfs from the container OS, I get some “device busy” while trying to remove /var/lib/lxcfs from the container filesystem.
root@c1:~# apt purge lxcfs
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
lxcfs*
0 upgraded, 0 newly installed, 1 to remove and 16 not upgraded.
After this operation, 138 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 25291 files and directories currently installed.)
Removing lxcfs (2.0.8-0ubuntu1~16.04.2) ...
dpkg: warning: while removing lxcfs, unable to remove directory '/var/lib/lxcfs': Device or resource busy - directory may be a mount point?
Purging configuration files for lxcfs (2.0.8-0ubuntu1~16.04.2) ...
dpkg: warning: while removing lxcfs, unable to remove directory '/var/lib/lxcfs': Device or resource busy - directory may be a mount point?
Processing triggers for man-db (2.7.5-1) ...
I also see lxcfs mounts within the container. Are these created from the host?
lxcfs on /proc/cpuinfo type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
lxcfs on /proc/diskstats type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
lxcfs on /proc/meminfo type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
lxcfs on /proc/stat type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
lxcfs on /proc/swaps type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
lxcfs on /proc/uptime type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
lxcfs on /var/lib/lxcfs type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)