I have a .mender file and I want to extract the content. I tried “mender-artifact dump artifact_name.mender”, but nothing gets extracted. I also tried “mender-artifact cp” with no success. See blow some (slightly obfuscated) commands.
“mender-artifact read artifact_name.mender” will display the content, as I expected. I am running mender-artifact version 3.3.0.
$ mender-artifact read image-board-20201013213940.mender
Signature: no signature
Compatible devices: ‘[board]’
Depends on one of artifact(s): 
Depends on one of group(s): 
modified: 2020-10-13 17:42:34 -0400 EDT
$ mender-artifact cp image-board-20201013213940.mender:image-board.ext4 file.ext4
The file: image-board.ext4 does not exist in the image
Thank you for your help,