Running SLES11sp3 with OES11sp2 as a XEN virtual machine on a SUSE12 server. This VM server is my main DNS and DHCP server.

I have created FTP on the host server (SUSE12) and copied the upgrade software for SLES11sp4 and OES 2015sp1 onto the server
and the FTP:// works correctly.

I then run "vm-install" and try the "I need to upgrade the existing operating system". The system seems to get to about 75% and
then fails at the point "Sending DHCP request to Eth0" (mmmh, it is not going to get an answer cos it is the DHCP server that is being upgraded)

My other VM's upgraded perfectly so now I am a bit stuck...

Any help in this regard will be appreciated.