4.11.5 Recovering an Original Non-root File System


If you roll back a conversion, you will lose any changes that you have made to the btrfs file system. Make a back up of the changes that you want to reapply to the restored file system.

To roll back the conversion of the file system and recover the original file system:

  1. Unmount the btrfs file system and all of its snapshots and images in the reverse order from which you originally mounted them.

    # umount temp_mountpoint2
    # umount temp_mountpoint1/image
    # umount mountpoint

  2. Roll back the conversion.

    # btrfs-convert -r device

  3. Mount the original file system.

    # mount -t extN device mountpoint