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by Graham Williams
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Upgrade Ubuntu

20200901 The usual method is from the command line:

$ do-release-upgrade

If for some reason that is problematic then the traditional upgrade path is simply to edit the /etc/apt/sources.list file to identify the new repository. There may be further files in /etc/apt/sources.list.d that also require updating.

In the following example the distribution is updated from bionic to focal.

$ sudo apt update; sudo apt install python3-pip
$ sudo pip3 install wajig; wajig update; wajig distupgrade
$ sudo perl -pi.bak -e 's|bionic|focal|g' /etc/apt/sources.list
$ wajig update; wajig distupgrade

This approach works for but is not generally recommended.


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