My MacBook Pro 2018 i7 stuck on a boot loop after updating to big sur , it was working fine , but after shut down it doesnt start , and i cant acces to recovery or safe mode only internet recovery, and even using internet recovery i stucked on loop , recovery restart to recovery again once finished, please help , any solution on that
MacBook Pro 15″, macOS 11.0
My issue with booting seems to be related to having an external drive attached during boot. See here: https://discussions.apple.com/thread/252047787
I would suggest you attempt to boot with nothing attached to the Mac, unless of course you have already tried that.
Good luck!
Any help please
I can't explain why this works, but I was able to solve my issue.
As explained above, I am, and have been, booting form the external SSD for years with no issues. Soon after I set up my external SSD, years ago, I deleted all the files from the internal Mac HD and used that disk for non critical storage.
Upgrading my external SSD to Big Sur exposed some problem and I think it is related to the internal HD, even though I had nothing critical on that drive. Maybe there was a recovery partition on that drive I didn't know about.
After I upgraded to Big Sur, if I had my Time Machine drive attached the computer would boot to recovery mode. After trying a bunch of potential fixes, including repairing drives, the computer would start up with the picture of the folder with the question mark and sometimes finish booting.
Last night, I decided to install Big Sur on my internal HD (which did not have an OS prior to the upgrade) even though I am not booting from it. I guess the install put information on that disk that makes the computer happy and it now boots to the external SSD every time regardless of what other additional external drives are attached.
I hope this helps you.
Big sur boot loop
