Container with custom mountoptions user_xattr

[jory]

Hello,
How can I mount CT volume (not rootfs but 2nd disk) with mountoptions=user_xattr?
If I set mp0 like this (content is from /etc/pve/lxc/100.conf)

mp0: timemachine-lvm:vm-106-disk-0,mp=/media/TimeMachine,mountoptions=user_xattr,size=900G

I get error

vm 100 - unable to parse value of 'mp0' - format error
mountoptions: value does not match the regex pattern

If I remove mountoptions=user_xattr it starts OK and /media/TimeMachine is accessible. I need to store extended attributes to ext4.
If it's not possible, is it possible to create XFS for 2nd disk of CT?

 

[cluck]

The documentation doesn't suggest it, but only a few mount options are permitted (LXC/Config.pm):

my $valid_mount_option_re = qr/(noatime|lazytime|nodev|nosuid|noexec)/;

sub is_valid_mount_option {
    my ($option) = @_;
    return $option =~ $valid_mount_option_re;
}

Though, the config file supports generic lxc.* settings like "lxc.mount.entry", which are more permissive. The disadvantage of them is that Proxmox has no "knowledge" of these mounts, which may interfere with things (also see thread lxc.mount.entry vs mp0).

 

[jory]

Thanks much cluck!