[Users] unsupported deleted submount

[Ian]

Hi,

I backup (simfs) containers nightly using vzdump (with suspend).

Early this morning one of the backups failed with the following error:


	INFO: Error: unsupported deleted submount:
(deleted)/var/named/chroot/etc/named.rfc1912.zones


I have had this problem before and know it is caused by a bind update
not deleting some chroot mounts.

df shows:

	df: ` (deleted)/var/named/chroot/etc/named.rfc1912.zones': No such file
or directory
	df: ` (deleted)/var/named/chroot/etc/named.iscdlv.key': No such file or
directory
	df: ` (deleted)/var/named/chroot/etc/named.root.key': No such file or
directory
	Filesystem Size Used Avail Use% Mounted on
	simfs 6.0G 1.3G 4.8G 22% /
	none 512M 4.0K 512M 1% /dev
	none 512M 0 512M 0% /dev/shm
	simfs 6.0G 1.3G 4.8G 22% /var/named/chroot/etc/named
	simfs 6.0G 1.3G 4.8G 22% /var/named/chroot/var/named
	simfs 6.0G 1.3G 4.8G 22% /var/named/chroot/etc/rndc.key
	simfs 6.0G 1.3G 4.8G 22% /var/named/chroot/usr/lib64/bind
	
This is easy to fix:

	umount /var/named/chroot/etc/named.rfc1912.zones
	umount /var/named/chroot/etc/named.iscdlv.key
	umount /var/named/chroot/etc/named.root.key

	
Does anyone know if this is a problem with openvz or vzdump?


Here are the log messages around the error:

	INFO: first sync finished (172 seconds)
	INFO: suspend vm
	INFO: Setting up checkpoint...
	INFO: 	suspend...
	INFO: Can not suspend container: Invalid argument
	INFO: Error: unsupported deleted submount:
(deleted)/var/named/chroot/etc/named.rfc1912.zones
	INFO: Checkpointing failed
	ERROR: Backup of VM 550 failed - command 'vzctl --skiplock chkpnt 550
--suspend' failed with exit code 16

RPM Versions:

	vzdump-1.2-4.noarch
	vzctl-4.9.4-1.el6.x86_64
	vzctl-core-4.9.4-1.el6.x86_64
	vzkernel-2.6.32-042stab113.11.x86_64 (latest kernel installed but not
rebooted yet)
	
Thanks

Ian
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