I wanted to install docker on my ubuntu 15.04 (vivid) but it seems not supported so I upgraded to 15.10 (willy) by using this sources.list:
deb http://old-releases.ubuntu.com/ubuntu/ wily main restricted
deb http://old-releases.ubuntu.com/ubuntu/ wily-updates main restricted
deb http://old-releases.ubuntu.com/ubuntu/ wily universe
deb http://old-releases.ubuntu.com/ubuntu/ wily-updates universe
deb http://old-releases.ubuntu.com/ubuntu/ wily multiverse
deb http://old-releases.ubuntu.com/ubuntu/ wily-updates multiverse
deb http://old-releases.ubuntu.com/ubuntu/ wily-backports main restricted universe multiverse
and apt-get update
and apt-get dist-upgrade
. It did not show any error and my apt-get update is working.
I then started doing a do-release-update towards 16.04 (Xenial), however some downloads are always failing and it won't proceed to the end. How can I fix it ?