Both Ubiquity and gparted format the same way: by running mke2fs. The only thing I can think of is that having it already formatted gave more time for the block groups to finish being initialized after being mounted.
You could check this with the debugfs stats command. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1290236 Title: ubiquity gpt ext4 format error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1290236/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
