[17:47] <mgedmin> https://launchpad.net/ubuntu/+archivemirrors shows all four mirrors in Lithuania as "Up to date", but lt.releases.ubuntu.com here doesn't even have 21.10 .iso images
[17:48] <mgedmin> and lt.archive.ubuntu.com has base-files for indri that still say "(development branch)"
[17:48] <mgedmin> (after doing a do-release-upgrade from 20.04 to 21.10 using lt.archive.ubuntu.com and then switching to fi.archive.ubuntu.com apt saw 1412 packages that need upgrading, including things like base-files and gnome-shell)
[17:50] <mgedmin> host lt.archive.ubuntu.com and host lt.releases.ubuntu.com both say they're aliases to ftp.litnet.lt.
[18:04] <tomreyn> lt.RELEASES.ubuntu.com points to ftp.litnet.lt / mirror.litnet.lt, which is not listed on https://launchpad.net/ubuntu/+cdmirrors
[18:07] <tomreyn> lt.ARCHIVE.ubuntu.com points to ftp.litnet.lt / mirror.litnet.lt, which IS listed on https://launchpad.net/ubuntu/+archivemirrors - but apparently (contrary to  what it says there) outdated / out of sync.