I've installed a few Debian, Ubuntu from ISO into Parallels but have YET to figure out how to install Parallels Tools. The latest attempt is with a Ubuntu Live Server 18.04. After it installs there is a message to "Please remove the installation medium". Checking the Parallels Menu > CD/DVD menu shows the Disconnect item checked. I have rebooted this Guest OS and examine the /media and the /dev/cdrom and find no devices at all. sudo mount -o exec returns that the mount was executed incorrectly. I have searched multiple times over the year to determine how to get this installed, but in my view the instructions are not clear as I follow and do not get these tools installed. Clicking the Parallels alert icon/Install Parallel Tools returns: "Click Continue to connect the Parallels Tools" with instructions to go to the CD/DVD directory. Perhaps for Ubuntu there's another directory? Clicking "Continue" returns "The CD/DVD disk is mounted inside the guest operating system" If I disconnect this disc now, the guest OS all not recognize its absence. ls /media returns nothing ls /dev/cdrom returns '/dev/cdrom' with no file in it. It appears to be a link to /dev/sr0 which itself is not where any files are loaded. I've also tried to mount the pro-tools-lin.iso from the Parallels 14 application folder. What am I doing wrong?