Thank you.
After booting the ISO under virt-manager, the "installation instruction" dispaly
as desktop background does not work.
What I did finally is pressing "Meta-Enter" to open a terminal, then run
`liveinst` .
After installation done, reboot, I only got a Black screen. I can goto other console by
sending Alt-F3, etc. Login at console using ID/password created during Installation OK.
What should I further test at the console?