安裝MySQL5.1失敗

[poiu999]

想問問我在安裝MySQ5.1時失敗

log:
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...
...
Unpacking libmysqlclient16 (from .../libmysqlclient16_5.1.22rc-2~ppa5_i386.deb) ...
Selecting previously deselected package mysql-client-5.1.
Unpacking mysql-client-5.1 (from .../mysql-client-5.1_5.1.22rc-2~ppa5_i386.deb) ...
Selecting previously deselected package mysql-server-5.1.
dpkg: regarding .../mysql-server-5.1_5.1.22rc-2~ppa5_i386.deb containing mysql-server-5.1, pre-dependency problem:
mysql-server-5.1 pre-depends on mysql-common (>= 5.1.22rc-2~ppa5)
mysql-common is unpacked, but has never been configured.
dpkg: error processing /var/cache/apt/archives/mysql-server-5.1_5.1.22rc-2~ppa5_i386.deb (--unpack):
pre-dependency problem - not installing mysql-server-5.1
Processing triggers for man-db ...
Errors were encountered while processing:
/var/cache/apt/archives/mysql-server-5.1_5.1.22rc-2~ppa5_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
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我應如何除掉一些已安裝的包.
謝謝