@Quinn - Same problem, since you say its a different bug I went ahead
and opened one with the dist-upgrade log:
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1907652
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Public bug reported:
PostGIS and PGRouting are in the removal blacklist, making it hard to
upgrade from 18.04 LTS to 20.04 LTS
dist-upgrade main.log:
2020-12-10 11:51:35,686 DEBUG blacklist expr '^postgresql-.*[0-9]\.[0-9].*'
matches 'postgresql-10-postgis-2.4'
2020-12-10 11:51:35,686 DEBUG
Sean, Alex,
I had all of these symptoms, too, but am convinced that -- at least in
my case -- it's not actually a bug (or if it is, the workaround is
trivial). I eventually noticed that it was just apt that was extremely
slow; I switched to a new apt mirror and everything was great. It may
be
