I am seeing the same failed upgrade behavior with Karmic. It seems the init script does not always kill mpd:
twiga...@corona:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0B of additional disk space will be used. Do you want to continue [Y/n]? y Setting up mpd (0.14.2-3ubuntu3) ... * Stopping Music Player Daemon mpd [ OK ] * Starting Music Player Daemon mpd unable to bind port 6600: Address already in use maybe MPD is still running? Trace/breakpoint trap (core dumped) [fail] invoke-rc.d: initscript mpd, action "restart" failed. dpkg: error processing mpd (--configure): subprocess installed post-installation script returned error exit status 133 Errors were encountered while processing: mpd E: Sub-process /usr/bin/dpkg returned an error code (1) twiga...@corona:~$ telnet 127.0.0.1 6600 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. OK MPD 0.14.0 ^] telnet> quit Connection closed. twiga...@corona:~$ sudo /etc/init.d/mpd stop * Stopping Music Player Daemon mpd [ OK ] twiga...@corona:~$ telnet 127.0.0.1 6600 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. OK MPD 0.14.0 ^] telnet> quit Connection closed. twiga...@corona:~$ ps -ef | grep mpd 113 2813 1 0 14:57 ? 00:00:00 /usr/bin/mpdscribble --daemon-user mpdscribble --pidfile /var/run/mpdscribble.pid mpd 2992 1 0 14:57 ? 00:00:00 /usr/bin/mpd /etc/mpd.conf twigathy 8668 3869 0 16:00 pts/1 00:00:00 grep mpd twiga...@corona:~$ sudo kill 2992 twiga...@corona:~$ ps -ef | grep mpd 113 2813 1 0 14:57 ? 00:00:00 /usr/bin/mpdscribble --daemon-user mpdscribble --pidfile /var/run/mpdscribble.pid twigathy 8672 3869 0 16:00 pts/1 00:00:00 grep mpd twiga...@corona:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0B of additional disk space will be used. Do you want to continue [Y/n]? y Setting up mpd (0.14.2-3ubuntu3) ... * Starting Music Player Daemon mpd [ OK ] -- package mpd 0.14.2-3ubuntu2 failed to install/upgrade: subprocess post-installation script returned error exit status 134 https://bugs.launchpad.net/bugs/364857 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs