HELP! After downloading and installing the BigSur OS, it booted and the progress bar doesn't move. :( What to do? :(
This is on my another Macbook Air, it's been 2 hours already
Hard power off: Tried CM+OP+P+R : Tried
HELP!
BIGSUR STUCK INSTALLING
You need to be really patient. Installation can take a long time and progress bars are not always very responsive. I would not interrupt the boot before a few more hours.