I have same issue.
My environment is mac book-air(12.0.1: MacOS Montray).
I'll try old iso.
I give up to use my mac book-air(2018).
It can not boot with old iso.
I could boot my old mac book-air(2011) with old iso.
I will use it...
I am facing the same issue:
After booting from USB it say loaded 100%
then slowly tries again from 0 to 100% and then just stucks nothing happens.
I am using MacBook Air (macOS Monterey 12.0.1, 8GB RAM, 1.6 GHz Dual Core Intel Core i5)
Now I am trying with rhrexboot-2020-08.iso hopefully it will work and remains valid for the exam, fingers crossed.
Finally I was able to run & PASS the compatibility test for exam on rhrexboot-2020-08.iso on my MacBook Air (macOS Monterey 12.0.1, 8GB RAM, 1.6 GHz Dual Core Intel Core i5).
Few things to note:
I had to use external keyboard, mouse and speakers as somehow MacBook keyboard mouse, keypad and speakers did not work at all. I had to buy USB-C hub to connect all (USB flash drive, Keyboard, mouse, Logitech C270 camera, Plantronics headset.)
I must say rhrexboot-2020-08.iso is also not straight forward. I had to boot multiple times to see "..." (three dots on blank screen which eventally loads exam in 2-3 mins).
I hope this rhrexboot-2020-08.iso remains valid for the exam too, I am planing to appear for exam in next ~20 days.
Also I wish Red Hat would take some action for the issues people are facing in the the latest iso (rhrexboot.iso).
I have issue on my Dell Inspiron 16 Plus (7610) , On my Lap Screen flickering and not able to see or do anything once booted up from ISO.
@manoj7shekhawat I tried that as well.. But older ISO not coming up with Graphics, I tried disabling Secure boot to see.. that also failed..
Suspecting issue with Graphics Driver.
May one line correction in driver or module can fix the issue..
@R& T and @@Dev Team ca Work and fix this I believe
Sad to know, you need to use other machine then.
For me Old ISO also not working,
with New ISO Screen flickering and not able to see the contents.. OLD ISO is stuck after showing 100%
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