~: sudo apt-get clean
[no output]

~: sudo apt-get install mysql-server-core-5.5
Reading package lists... Done
Building dependency tree
Reading state information... Done
mysql-server-core-5.5 is already the newest version.
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 mysql-server-5.5 : Depends: mysql-server-core-5.5 (= 5.5.32-0ubuntu0.12.04.1) but 5.5.34-0ubuntu0.12.04.1 is to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

~: 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-5.5
Suggested packages:
  tinyca mailx
The following packages will be upgraded:
  mysql-server-5.5
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
Need to get 8,827 kB of archives.
After this operation, 1,024 B of additional disk space will be used.
Do you want to continue [Y/n]? Y
Get:1 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main mysql-server-5.5 amd64 5.5.34-0ubuntu0.12.04.1 [8,827 kB]
Fetched 8,827 kB in 20s (437 kB/s)
Traceback (most recent call last):
  File "/usr/bin/apt-listchanges", line 237, in <module>
    main()
  File "/usr/bin/apt-listchanges", line 48, in main
    debs = apt_listchanges.read_apt_pipeline(config)
  File "/usr/share/apt-listchanges/apt_listchanges.py", line 83, in read_apt_pipeline
    return map(lambda pkg: filenames[pkg], order)
  File "/usr/share/apt-listchanges/apt_listchanges.py", line 83, in <lambda>
    return map(lambda pkg: filenames[pkg], order)
KeyError: 'mysql-server-5.5'
dpkg: dependency problems prevent configuration of mysql-server-5.5:
 mysql-server-5.5 depends on mysql-server-core-5.5 (= 5.5.32-0ubuntu0.12.04.1); however:
  Version of mysql-server-core-5.5 on system is 5.5.34-0ubuntu0.12.04.1.
dpkg: error processing mysql-server-5.5 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of mysql-server:
 mysql-server depends on mysql-server-5.5; however:
  Package mysql-server-5.5 is not configured yet.
dpkg: error processing mysql-server (--configure):
 dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
                                                              No apport report written because MaxReports is reached already
                                            Errors were encountered while processing:
 mysql-server-5.5
 mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)