It would appear you are attempting to install mysql-server-5.5 from the trusty release pocket, rather than security or updates. Is there a reason for that?
** Changed in: mysql-5.5 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1675860 Title: package mysql-server-5.5 5.5.35+dfsg-1ubuntu1 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.5/+bug/1675860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs