Hi Steve-O,
I'm doing an upgrade today too and hit the same issue with Software Updater.
The alternative to using Software Updater is to perform the upgrade from the
command line. Which I'll explain below. This is no less safe, but upgrading
always carries some risk, so if this system is important to you, you *must*
be prepared in case there are problems. An approach I recommend is to buy a
second hard drive and get an appropriately skilled person to clone your
existing system onto that drive. Then you can swap in the new drive and
perform the upgrade on it, leaving the old one intact in case of problems.
First use Software Updater to ensure that your Trisquel 7.0 system is
completely up-to-date.
Then open the Terminal program and update the package references to Trisquel
8.0:
sudo gedit /etc/apt/sources.list
In the editor, replace all references to "belenos" with "flidas" (try Search,
Replace in the menu). Save and close the editor. Then update your packages
list with:
sudo apt-get update
Then perform the upgrade with:
sudo apt-get dist-upgrade
That will busily download and install all the packages, taking quite a while.
When it's completed you'll need to reboot your machine. Now you're running
Trisquel 8.0!
Regards,
Ben