It looks (from your DpkgTerminalLog.txt) like /dev/pts was not set up inside your chroot. Can you enter the chroot and do
mount -t devpts devpts /dev/pts chmod 666 /dev/pts/ptmx mount --bind /dev/pts/ptmx /dev/ptmx ** Changed in: postfix (Ubuntu) Status: New => Incomplete ** Changed in: postfix (Ubuntu) Assignee: (unassigned) => Serge Hallyn (serge-hallyn) -- package postfix 2.7.0-1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 75 https://bugs.launchpad.net/bugs/597510 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