这很简单。我只想这样做：
aptitude remove mysql-server mysql-server-5.0 --purge
aptitude install mysql-server
但是当我尝试运行它时出现此错误：
root@db2:/etc# aptitude install mysql-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following NEW packages will be installed:
libhtml-template-perl{a} mysql-server mysql-server-5.0{a} mysql-server-core-5.0{a}
0 packages upgraded, 4 newly installed, 0 to remove and 5 not upgraded.
Need to get 0B/27.7MB of archives. After unpacking 91.1MB will be used.
Do you want to continue? [Y/n/?] y
Writing extended state information... Done
Preconfiguring packages ...
Selecting previously deselected package mysql-server-core-5.0.
(Reading database ... 17213 files and directories currently installed.)
Unpacking mysql-server-core-5.0 (from .../mysql-server-core-5.0_5.1.30really5.0.75-0ubuntu10.2_amd64.deb) ...
Selecting previously deselected package mysql-server-5.0.
Unpacking mysql-server-5.0 (from .../mysql-server-5.0_5.1.30really5.0.75-0ubuntu10.2_amd64.deb) ...
* Stopping MySQL database server mysqld [ OK ]
Selecting previously deselected package libhtml-template-perl.
Unpacking libhtml-template-perl (from .../libhtml-template-perl_2.9-1_all.deb) ...
Selecting previously deselected package mysql-server.
Unpacking mysql-server (from .../mysql-server_5.1.30really5.0.75-0ubuntu10.2_all.deb) ...
* Stopping MySQL database server mysqld [ OK ]
Setting up mysql-server-core-5.0 (5.1.30really5.0.75-0ubuntu10.2) ...
Setting up mysql-server-5.0 (5.1.30really5.0.75-0ubuntu10.2) ...
* Stopping MySQL database server mysqld [ OK ]
/var/lib/dpkg/info/mysql-server-5.0.postinst: line 144: /etc/mysql/conf.d/old_passwords.cnf: No such file or directory
dpkg: error processing mysql-server-5.0 (--configure):
subprocess post-installation script returned error exit status 1
Setting up libhtml-template-perl (2.9-1) ...
dpkg: dependency problems prevent configuration of mysql-server:
mysql-server depends on mysql-server-5.0; however:
Package mysql-server-5.0 is not configured yet.
dpkg: error processing mysql-server (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while proce ssing:
mysql-server-5.0
mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:
Setting up mysql-server-5.0 (5.1.30really5.0.75-0ubuntu10.2) ...
* Stopping MySQL database server mysqld [ OK ]
/var/lib/dpkg/info/mysql-server-5.0.postinst: line 144: /etc/mysql/conf.d/old_passwords.cnf: No such file or directory
dpkg: error processing mysql-server-5.0 (--configure):
subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of mysql-server:
mysql-server depends on mysql-server-5.0; however:
Package mysql-server-5.0 is not configured yet.
dpkg: error processing mysql-server (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
mysql-server-5.0
mysql-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Writing extended state information... Done
答案1
aptitude 有时会出现依赖性问题，您尝试过吗？
sudo apt-get --reinstall install mysql-server [.........]
sudo apt-get remove mysql-server [........]