debian-8 template broken after update

[Shashank]

Hello,

I just now tried updating the debian 8 template

- The update asked permission to restart automatically

- The update abruptly stopped after that

- The template vm just status indicator went to yellow for a long long time

- I shutdown the vm and tried starting it up back again but says cannot start
guid.

- During the update there were around 144 updates, 43 to be removed and 1 upgrade

- I went through some articles which suggest going to template vm terminal
through dom0, and upgrading it from there. But that did not work.

Any suggestions as to what went wrong. I am on my xps 15 9560, and on unstable repository. Any help would be much appreciated. Thanks