btrfs-convert I think is still broken. The last time I tried it, I was able to easily break it if the original ext4 has one or more large (1+GiB) files. There's more details in the Btrfs list archives on this. There are some developers working to fix some things, but I don't know the status of it all. https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3 So far I haven't had convert eat a file system, so at least you can extract your data from the file system to create a new one. Unfortunately since it's mounting ro, there's no way to create a read-only snapshot of the file system with which to use btrfs send-receive to migrate it to a new Btrfs file system. So you'll need to use rsync. Anaconda, on live installs, uses rsync -pogAXtlHrDx flags, so that will work for you whether you copy the data to a new ext4 or Btrfs filesystem. Chris Murphy -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org