fix #1721: unmount containers before trying to mount them

Signed-off-by: René Jochum <r.jochum@proxmox.com>

diff --git a/src/lxc-pve-prestart-hook b/src/lxc-pve-prestart-hook
index 61a8ef33c48c11e7088c60d41f780dc96af6257b..d50520ff652c6dd4f18c3a5db88403c89fede2b5 100755 (executable)
--- a/src/lxc-pve-prestart-hook
+++ b/src/lxc-pve-prestart-hook
@@ -94,6 +94,9 @@ __PACKAGE__->register_method ({
            push @$devices, $dev if $dev && $mountpoint->{quota};
        };
 
+       # Unmount first when the user mounted the container with "pct mount".
+       PVE::Tools::run_command(['umount', '--recursive', $rootdir], outfunc => sub {}, errfunc => sub {});
+
        PVE::LXC::Config->foreach_mountpoint($conf, $setup_mountpoint);
 
        my $lxc_setup = PVE::LXC::Setup->new($conf, $rootdir);