Upgrade Ubuntu 15.04 to 16.04

by gorthx

I use Ubuntu on my home machines, and tend to rely on the GUI Software Updater for upgrades & such.  Life happens and I left one of them on 15.04 past EOL, and the Software Updater didn’t provide an upgrade path directly to 16.04.  I had to upgrade to 15.10 first, which is also EOL.

Here’s what I pieced together from various forums around the net.  (I took this after-the-fact from my command-line history;  I’ll take better notes next time.)

apt-get update
apt-get upgrade # make sure system is as up-to-date as possible
apt-get autoremove # clean up some leftover crap

apt-get dist-upgrade # recommended next step on one of the forums,
                     # but didn't actually do anything
                     # and I probably could have skipped this

do-release-upgrade -d # supposely this should have worked without the -d
                      # but it didn't
                      # -d means "latest development release"

And booyah, I’m on 15.10 and could continue on to 16.04.

 

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