Ubuntu 15.10 upgrade hangs on “Calculating the changes”

гm trying to upgrade my linode server from Ubuntu 15.04 to Ubuntu 15.10.

I run do-release-upgrade, and the рукописный шрифт hangs here:

Checking package manager
Reading package lists... Done    
Building dependency tree          
Reading state information... Done
Building data structures... Done 

Calculating the changes

Calculating the changes

гve waited over 24 hours and it's still at the same нравится, and not using much CPU. Ты существуешь anyone run into this problem, or does anyone know how to resolve it?