The internal server error is a bad behavior on MAAS's part, but without a traceback it's difficult to diagnose. However, with your steps it was easy to recreate the problem in my test bed; I was able to get a traceback as follows:
http://paste.ubuntu.com/23390488/
(You probably saw the message in maas.log, but `regiond.log` has the details of the failure.)
Martin, can you confirm that this only happens in MAAS 2.x?
The internal server error is a bad behavior on MAAS's part, but without a traceback it's difficult to diagnose. However, with your steps it was easy to recreate the problem in my test bed; I was able to get a traceback as follows:
http:// paste.ubuntu. com/23390488/
(You probably saw the message in maas.log, but `regiond.log` has the details of the failure.)
Martin, can you confirm that this only happens in MAAS 2.x?