我正在使用do-release-upgrade10.04 到 12.04 的服务器，但升级过程中似乎停滞了mysql
Configuration file `/etc/mysql/my.cnf'
==> Modified (by you or by a script) since installation.
==> Package distributor has shipped an updated version.
What would you like to do about it ? Your options are:
Y or I : install the package maintainer's version
N or O : keep your currently-installed version
D : show the differences between the versions
Z : start a shell to examine the situation
The default action is to keep your current version.
*** my.cnf (Y/I/N/O/D/Z) [default=N] ? n
Setting up adduser (3.113ubuntu2) ...
Installing new version of config file /etc/deluser.conf ...
Selecting previously unselected package mysql-server-5.5.
(Reading database ... 180718 files and directories currently installed.)
Unpacking mysql-server-5.5 (from .../mysql-server-5.5_5.5.41-0ubuntu0.12.04.1_i386.deb) ...
40分钟内没有任何进展。
日志中/var/log/dist-upgrade没有显示其他错误迹象。
有人可以推荐下一步的最佳做法吗？