davmor2@stryder:~$ sudo ubuntu-device-flash personal rolling --channel edge -o personal_x86.img --developer-mode
[sudo] password for davmor2: 
Determining oem configuration
Starting download of generic-amd64
41.70 KB / 41.70 KB [====================================] 100.00 % 736.84 KB/s 
Done
Starting download of icon for package
38.97 KB / 38.97 KB [====================================] 100.00 % 645.65 KB/s 
Done
Fetching information from server...
Downloading and setting up...
53.50 MB / 465.04 MB [==>______________________________] 11.50 % 4.61 MB/s 1m28serror while executing external command kpartx -ds personal_x86.img: ioctl: LOOP_CLR_FD: No such device or address