You seem to be trying to upgrade an existing installation that is in an ext2 partition ( which you shouldn't be using ) and it is corrupt. You should either fsck this partition to repair it before attempting to reinstall, or better yet, have the installer format it using ext4 instead of the deprecated ext2 filesystem.
** Changed in: ubiquity (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1610644 Title: lubuntu installer crashes when installing on macbook air To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1610644/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs