Thanks Seth. No apt-cacher-ng in the original failing setup, but I do have squid-deb-proxy in the container I used to test the reproducer. I have re-confirmed, both in the container and the original installer VM, that no apt proxy is required to produce this bug.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/2107223 Title: mirror sync in progress, but the situation improves if `rm -fr /var/lib/apt/lists` Status in apt package in Ubuntu: New Bug description: A not-uncommon bug for Subiquity is one that looks like LP: #2105480, but we have seen many like it and that's just one example. In summary, some files will fail to download from the mirror with the message "Mirror sync in progress?" For reasons I don't understand just yet, it seems /var/lib/apt/lists can get into a bad state. `apt-get update` just produces the "Mirror sync in progress?". The way to recover from it is to remove /var/lib/apt/lists entirely and start over. After removing /var/lib/apt/lists, `apt-get update` and subsequent operations perform as expected. I have a live example for you, I don't know if this reproducer requires certain mirror state or not. Attached to this bug is a copy of /var/lib/apt/lists, and if you populate your test system /var/lib/apt/lists with the contents of this tarball and configure the system to hit mirror is.archive.ubuntu.com for series plucky, you may see errors like this: Err:14 http://is.archive.ubuntu.com/ubuntu plucky/universe amd64 Packages 404 Not Found [IP: 176.57.227.242 443] File has unexpected size (15764540 != 16133052). Mirror sync in progress? [IP: 176.57.227.242 443] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/2107223/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
