Just a quick blurb. Yesterday I was installing Ubuntu Linux 18.04 on VMWare Fusion on my Mac. Much to my chagrin, I noticed that
DiskImagerMounter could no longer mount any of the new Linux distros. Throwing a
no mountable file systems error on Debian and RedHat distros. My guess... There is a new filesystem used for those images that the utility can't read.
Anyway, I just want to test the integrity of the iso. So I found a workaround.
Just install the wonderful
7zip utility on MacOS.
brew install p7zip
7z l your-file-name.iso
That will list the contents of the iso so you can be sure that it is readable. An easy check with little overhead.