It's hard for me to reproduce this bug since it happend "automatically". I've restored the data from a backup in the meantime and since this is our monitoring server i can't really retry it to get the same results.
According to the dpkg.log my former version was 5.1.63-0ubuntu0.10.04.1, i've looked into the changes between .63 and .66 bug couldn't find anything that would explain that behaviour. ** Attachment added: "dpkg.log" https://bugs.launchpad.net/ubuntu/+source/mysql-dfsg-5.1/+bug/1075484/+attachment/3425564/+files/dpkg.log -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to mysql-dfsg-5.1 in Ubuntu. https://bugs.launchpad.net/bugs/1075484 Title: upgrade of mysql-server-5.1 to 5.1.66-0ubuntu0.10.04.1 removed InnoDB datafiles To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-dfsg-5.1/+bug/1075484/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs