Hi

I have made the clearly fatal mistake of trying to upgrade my XPS13 developer edition from Ubuntu 12.04 (I think - could have been 14.04 - the one it was supplied with anyway) - to 16.04. I was expecting some problems but afterwards I couldn't log in (login page just kept reappearing), there was no network, nothing. I could kick it into a terminal window from the login screen, log in there and install some network drivers manually but it didn't work to get the network back up.

So I tried a clean install from an Ububtu ISO which has made matters worse - an error message is all I get  

[    0.122637] Error parsing PCC subspaces from PCCT.

I was hoping I could get an official Dell image for 16.04 to start nice and clean but the online help offers nothing and it seems that because I am out of warranty I can't get any other support from them. So I was hoping someone here might be able to help, either with some clues how to fix things from where I am or how to do the upgrade successfully starting from scratch (I have a clone of the drive which I hope I can restore).

Sorry for dimwit questions, I am only a partial geek...

Dominic