When reading the messages above I conclude that there is/was a problem with /usr/share/gconf/schemas/update-manager.schemas:
Title: [modified: usr/share/gconf/schemas/update-manager.schemas] (the file has been modified anbd is no more the same as originally installed - this can, however, be ok) DpkgTerminalLog.txt in #1: /usr/share/gconf/schemas/update-manager.schemas:304: parser error : Input is not proper UTF-8, indicate encoding ! Bytes: 0xB2 0x3C 0x2F 0x73 (there seems to be a problem with the contents of that file) After sudo rm -f /usr/share/gconf/schemas/update-manager.schemas as requested in #12 in #15 the new error messages are Setting up update-manager (1:0.134.11) ... Warning: /usr/share/gconf/schemas/update-manager.schemas could not be found. Usage: gconf-schemas --[un]register file1.schemas [file2.schemas [...]] gconf-schemas: error: You need at least a file to (un)register. dpkg: error processing update-manager (--configure): (now there is a problem that the file does not exist any more) What I suggest is trying the following: sudo touch /usr/share/gconf/schemas/update-manager.schemas sudo apt-get --purge remove update-manager What is the output of these commands? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/697568 Title: package update-manager 1:0.134.11 [modified: usr/share/gconf/schemas /update-manager.schemas] failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs