I restarted gparted. Looks like filesystem types are missing for some partitions. It says "unknown" for swap file system.
I recreate the file system swap and non-root ext3 partition. Restarting the "Installing system" progress. I think the bug might have been caused that I pressed Back button on gparted page 6/6. -- "Go back" button doesn't work if swap space is not enabled in installer https://launchpad.net/bugs/78930 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs