Hi,
I have an external usb HDD (WD my passport, just usb cable, no
external power) with a single ext4 partition occupying the whole disk
with 698 GiB capacity and 188 GiB empty space. The data on disk is not
very important.
I also have a laptop with Manjaro 64-bit XFCE, kernel 4.14.68,
btrfs-progs v4.17.1, all packages come with Manjaro.
I tried to convert my disk to btrfs with
sudo btrfs-convert /dev/sdb1
I have also tried -i, -n options, all failed with:
create btrfs filesystem:
blocksize: 4096
nodesize: 16384
features: extref, skinny-metadata (default)
creating ext2 image file
ERROR: failed to create ext2_saved/image: -1
WARNING: an error occurred during conversion, filesystem is partially
created but not finalized and not mountable
I could not find this error/warning combo on the net.
ext4 partition seems intact and working after these attempts.
How can I debug and complete this conversion?
Thanks..
