I found with some experimentation that btrfs_reserve_extent() fails due to free space fragmentation. If you don't have a large enough contiguous block on the filesystem you're trying to convert, that incurs the problem. It's poor error messaging.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1774794 Title: btrfs-convert executable is not included in btrfs-progs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-progs/+bug/1774794/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
