Mysql service does not restart after unattended upgrade on Hardy

[Marc Deslauriers]

On Fri, 2012-04-27 at 12:45 +0200, Lorenzo Salvadorini wrote:
> Hi all,
> we are experiencing this issue on many of our hardy hosts with
> unattended upgrades enabled.
> After upgrade from 5.0.51 to version 5.0.95 or from 5.0.95 to 5.0.96
> the upgrade fails and the mysql service does not restarts correctly.
> With a manual restart the mysql service come up without any apparent
> problem but the version is still the old one. The day after, we have
> done the upgrade manually without any problem. We experienced this
> problem on different platform and setup:
> - on EC2 hosts and on physical hosts on common HP DL360 G6/G7 hardware.
> - on mysql clustered with DRBD and standalone hosts
> 
> I'm trying to understand what could be causing this behaviour reading
> changelog or unattended upgrade logs/mail but I've not found anything
> until now, is this happened to someone else?
> 

It may be this bug:

https://bugs.launchpad.net/ubuntu/+source/mysql-dfsg-5.0/+bug/988325

I'll look into it before the next security update.

Marc.