GNet Solutions » FreeBSD Administration

I encountered a problem after deleting an unused VirtualBox template jail on FreeNAS. The error I came across happened when I tried to create a new VirtualBox jail, then immediately displayed the following error:

ERROR: A template with this nickname already exists

After looking around on the Internet, I found someone on the PCBSD bug tracking system had the same problem and suggested deleting the warden template.

To resolve the problem I did the following:

• Log into the FreeNAS console and open up a shell on the web interface.

• Show all the ZFS zvols:
  

  zfs list
  

• In my case I had to remove jails/.warden-template-VirtualBox-4.3.12:
  

  zfs destroy -r jails/.warden-template-VirtualBox-4.3.12
  

• Remove remnant files:
  

  rm -rf /mnt/jails/.warden-template-VirtualBox-4.3.12
  

Once this was done, I was able to create new VirtualBox jails.

Resources¶

• https://bugs.pcbsd.org/issues/3779