Artificat creation using mender convert throws error

[dellgreen]

similar issue discussed here:

Can't create Mender images for Ubuntu Server x64

I’m trying to build an Ubuntu Server x64 (20.04) image for this board, and I keep getting this error from mender-convert: mount: /mender-convert/work/boot: wrong fs type, bad option, bad superblock on /dev/loop5, missing codepage or helper program, or other error. Here’s what I’ve done: 1. Installed Ubuntu Server x64 20.04 on the board 2. Created an .img file from the disk like so: sudo dd if=/dev/sdc of=ubuntu-server-image-from-HW-2020-05-07.img bs=1M conv=fdatasync 3. Run mender-convert …