Freebsd, zfs, and raw copy on write image backups issue

1

server 2.1.19

Whenever attempting to do a raw COW image backup, I receive 1 of two errors on all windows machines…

“Backing up System Reserved (SYSVOL) partition failed. Image backup failed”
or
“Error creating file for writing MBR data. Permission denied (code: 13)”

normal VHD and file backups work fine

ALL_NONUSB set

urbackup:urbackup has ownership -R of /tank and /usr/local/var/urbackup

echo “tank/images” > /etc/urbackup/dataset
echo “/tank/urbackup” > /etc/urbackup/backupfolder

urbackup_snapshot_helper tests OK and folders get created in /tank/images for the backups

where else should I check for permissions? Thanks.

2

You are running it as non-root user?

I haven’t tested that. Maybe the newly created zfs snapshots have permissions such that only root can write to them?

3

yes, that appears to be the case. It works when run as root.

4

Looking at the code it tries to set the folder of the zfs subvol to urbackup already