19.04 -> 19.10 pop_os upgrade fails with error 101

[FelixZangerl]

For me the official upgrade manuals also don't work. i get the message: failed to upgrade os: failed status: fetch of package x (where x is every time a different library). error trying to connect: network is unreachable. although i have a stable internet connection.

on my other devices where i have ubuntu everything worked via the command line. unfortunately not for pop-os.

none of the other terminal commands worked, these are:

apt full upgrade and
pop-upgrade release upgrade

[mmstick]

As the error indicates, you aren't able to reach the server which has the package. The server is either offline, or that repository no longer exists.

[FelixZangerl]

but it's a different package each time. no idea how to fix this.

via pop-upgrade release upgrade systemd:

release upgrade aborted: fetch of package 'firefox-locale-en_69.0.3+build1-0ubuntu1_amd64.deb' at http://us.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox-locale-en_69.0.3+build1-0ubuntu1_amd64.deb failed: async fetch for "/var/cache/apt/archives/partial/firefox-locale-en_69.0.3+build1-0ubuntu1_amd64.deb" failed: http://us.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox-locale-en_69.0.3+build1-0ubuntu1_amd64.deb: error trying to connect: Network is unreachable (os error 101)
pop-upgrade: dbus client error: calling ReleaseUpgradeFinalize method failed

[FelixZangerl]

everything worked out fine now. i guess you were right @mmstick and the problem was just not reaching the server.