(Solved) 1. Backup file $ sudo cp /var/lib/dpkg/status /var/lib/dpkg/~status
2. Edit file $ sudo gedit /var/lib/dpkg/status 3. Remove this Package ** Changed in: memtest86+ (Ubuntu) Status: New => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/985325 Title: package memtest86+ 4.20-1.1ubuntu1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 127 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/memtest86+/+bug/985325/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs