upgrading from mysql-server-5.0 to mysql-server-5.1 doesn't work

sudo apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  mysql-server-5.1
Suggested packages:
  tinyca
The following NEW packages will be installed:
  mysql-server-5.1
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 10.7MB of archives.
After this operation, 25.3MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://archive.ubuntu.com jaunty/universe mysql-server-5.1 5.1.30-2ubuntu3 [10.7MB]
Fetched 10.7MB in 56s (190kB/s)
Preconfiguring packages ...
(Reading database ... 181068 files and directories currently installed.)
Unpacking mysql-server-5.1 (from .../mysql-server-5.1_5.1.30-2ubuntu3_amd64.deb) ...
dpkg: error processing /var/cache/apt/archives/mysql-server-5.1_5.1.30-2ubuntu3_amd64.deb (--unpack):
 trying to overwrite `/usr/sbin/mysqld', which is also in package mysql-server-core-5.0
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/mysql-server-5.1_5.1.30-2ubuntu3_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

This bug was fixed in the package mysql-dfsg-5.1 - 5.1.31-1ubuntu2

---------------
mysql-dfsg-5.1 (5.1.31-1ubuntu2) jaunty; urgency=low

  * Support upgrades from 5.0 to 5.1: (LP: #319848).
    - debian/mysql-server-5.1.config: don't ask for root password when
      upgrading from a 5.0 install.
    - debian/control: mysql-server-5.1 conflicts and replaces
      mysql-server-core-5.0.

 -- Mathias Gug <email address hidden> Mon, 02 Mar 2009 19:21:27 -0500