[[!comment format=mdwn username="https://id.koumbit.net/anarcat" ip="72.0.72.144" subject="comment 2" date="2014-10-06T15:18:20Z" content=""" i've seen problems like this not related to upgrades at all, in [[todo/read-only removable drives]]. furthermore, it seems to me that failure to upgrade a repository shouldn't be fatal and we should be able to recover and get files anyways, in the spirit of [[backwards compatibility|future_proofing]]. --[[anarcat]] """]]