diskutil erasevolume HFS+ 'RAM Disk' `hdiutil attach -nobrowse -nomount ram://XXXXX`
where XXXXX
is the size of the RAM disk in terms of memory blocks.
Notes:
tar -xf Blackmagic_Desktop_Video_Linux_*.tar
cd Blackmagic_Desktop_Video_Linux_*/deb/x86_64/
sudo dpkg -i desktopvideo_*.deb
sudo apt-get install -f
BlackmagicFirmwareUpdater status
# if prompted to update, perform an update: