Sadly I didn't have such luck. On my cMP 2010 and with a Samsung Pro 860 SSD, I ran into an endless boot loop, with the progress bar only getting about an 1/8th of the way across each time - upgrading from 11.0.1 to 11.1 using a USB installer patched with Barry's 0.5.1 files. My SSD's partition map has gotten corrupted in the process (maybe just a coincidence, but it's been fine up until now), so I'm currently backing up my BS data volume with CCC 5 and am going to have to reformat the SSD, install 11.1 (hopefully!) and use Migration Assistant to copy back my personal files from the backup. This is really my first real glitch using BS. I'd already felt it was stable enough to use as my main OS. Fingers crossed that 11.2 'just' updates as expected next time around.MacBookPro9,2, MP 0.5.2, BigSur 11.1 (20C69) - Updated using full installer via USB. Minor issue: Update process got stuck with black screen upon reboot. Holding power button to restart solved it.