Separate names with a comma.
If you install Parallels Tools version 9 within the RHEL 7 guest it will work. Parallels version 8 complains that the Parallels Tools version is...
Parallels Tools seems to have issues with recent versions of Fedora as well:...
I'm running Parallels Desktop for Mac version 8 and I can't get Parallels Tools installed on my Red Hat Enterprise Linux 7 guest....