[SOLVED] New drive /var

[aavar]

Hi
I have set up a simple proxmox setup with one physical drive in my server.
It's getting full, so I have added a second ssd that I was planning to mount in /var.
When I try to copy the files from /var to the new drive i get permission errors.
How can I do what I am trying to do?

The errors:
# cp -r /var/* .
cp: cannot open '/var/lib/lxcfs/cgroup/memory/user.slice/user-0.slice/session-22.scope/memory.force_empty' for reading: Permission denied
cp: cannot open '/var/lib/lxcfs/cgroup/memory/user.slice/user-0.slice/session-22.scope/memory.pressure_level' for reading: Permission denied
cp: cannot open '/var/lib/lxcfs/cgroup/memory/user.slice/user-0.slice/session-22.scope/cgroup.event_control' for reading: Permission denied
cp: error reading '/var/lib/lxcfs/cgroup/blkio/user.slice/blkio.throttle.read_iops_device': Invalid argument
cp: error reading '/var/lib/lxcfs/cgroup/blkio/user.slice/blkio.throttle.write_iops_device': Invalid argument
cp: cannot open '/var/lib/lxcfs/cgroup/blkio/user.slice/blkio.reset_stats' for reading: Permission denied
cp: error reading '/var/lib/lxcfs/cgroup/blkio/user.slice/blkio.throttle.read_bps_device': Invalid argument
cp: error reading '/var/lib/lxcfs/cgroup/blkio/user.slice/blkio.throttle.write_bps_device': Invalid argument
cp: cannot open '/var/lib/lxcfs/cgroup/devices/user.slice/devices.deny' for reading: Permission denied
cp: cannot open '/var/lib/lxcfs/cgroup/devices/user.slice/devices.allow' for reading: Permission denied

 

[matrix]

do ls -la on /var/lib/lxcfs/cgroup/memory/user.slice/user-0.slice/session-22.scope/memory.force_empty to see your permissions.
but it told you for reading

 

[fiona]

Hi,
the lxcfs (see man lxcfs) is a virtual filesystem used for containers. You cannot simply copy it over by hand. Do the following:

1. First, shut down all of your containers.
2. Then use systemctl stop lxcfs.service.
3. Now it should be possible to copy the data below /var and then mount the new drive there.
4. Start the service systemctl start lxcfs.service again.
5. Finally restart your containers.

 

[aavar]

Tnx, that worked great