Urbackup Server Logfile:
2018-05-25 12:17:37: Image mounting disabled: TEST FAILED: Please compile with mountvhd (./configure --with-mountvhd)
2018-05-25 12:17:37: Broadcasting on interface IP X.X.X.X
2018-05-25 12:17:38: UrBackup Server start up complete.
2018-05-25 12:17:38: Server started up successfully!
2018-05-25 12:17:38: Looking for old Sessions... 0 sessions
2018-05-25 12:17:39: Downloading version file...
2018-05-25 12:17:39: Downloading version file...
2018-05-25 12:17:39: Downloading version file...
2018-05-25 12:17:39: Downloading server version info...
2018-05-25 12:17:39: Downloading dataplan database...
2018-05-25 12:18:09: New Backupclient: test003
2018-05-25 12:18:39: Starting scheduled full image backup of volume "C:"...
2018-05-25 12:18:39: Starting scheduled full image backup of volume "SYSVOL"...
2018-05-25 12:18:39: ERROR: Could rename symlink at /mnt/u01/u/01/test003/180525-1218_Image_SYSVOL_new to /mnt/u01/u/01/test003/180525-1218_Image_SYSVOL. Is a directory (code: 21)
2018-05-25 12:18:39: ERROR: Error creating image backup destination.
2018-05-25 12:18:39: Updating statistics...
2018-05-25 12:18:39: Updating image stats...
2018-05-25 12:18:39: Updating file statistics...
2018-05-25 12:18:39: Done updating statistics.
2018-05-25 12:18:40: ERROR: Backing up System Reserved (SYSVOL) partition failed. Image backup failed
2018-05-25 12:18:40: Time taken for backing up client test003: 1s
2018-05-25 12:18:40: ERROR: Backup failed
2018-05-25 12:18:41: WARNING: Exponential backoff: Waiting at least 40m before next image backup


root@ub01:~ # ls /mnt/u01/u/01/test003/180525-1218_Image_SYSVOL_new
root@ub01:~ # ls /mnt/u01/u/01/test003/
180525-1218_Image_SYSVOL        180525-1218_Image_SYSVOL_new
root@ub01:~ # df -h
Filesystem                                        Size    Used   Avail Capacity  Mounted on
s01/j/ub01                                        130G    2.0G    128G     2%    /
devfs                                             1.0K    1.0K      0B   100%    /dev
procfs                                            4.0K    4.0K      0B   100%    /proc
u01/u/01                                          7.0T     96K    7.0T     0%    /mnt/u01/u/01
u01/u/01/test003                             7.0T     88K    7.0T     0%    /mnt/u01/u/01/test003
u01/u/01/test003/180525-1218_Image_SYSVOL    7.0T     88K    7.0T     0%    /mnt/u01/u/01/test003/180525-1218_Image_SYSVOL
root@ub01:~ #