This error occurs when the file /etc/papersize is missing. Just run the following command to correct this error. sudo echo "letter" > /etc/papersize
man papersize for a detailed help about papersize. But indeed there is a bug because a2ps should fallback to a default value if /etc/papersize doesn't exists. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here. Thanks for taking the time to make Ubuntu better! ** Changed in: a2ps (Ubuntu) Status: New => Confirmed ** Summary changed: - a2ps exits with 'unknown medium libpaper' error + a2ps exits with 'unknown medium libpaper' error when file /etc/papersize is missing -- a2ps exits with 'unknown medium libpaper' error when file /etc/papersize is missing https://bugs.launchpad.net/bugs/149551 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