Macos Big Sur Iso 2021 -

Alternatively, if you have a legitimate copy from 2021:

VBoxManage modifyvm "BigSur2021" --cpu-profile "Intel Core i7-6700K" VBoxManage setextradata "BigSur2021" "VBoxInternal2/EfiGraphicsResolution" "1920x1080" VBoxManage modifyvm "BigSur2021" --nested-hw-virt on Boot the ISO. If you see a Guru Meditation error, your 2021 ISO is the only version that supports the -cpu-profile fallback. Because you are using a specific 2021 build, you might encounter these issues: macos big sur iso 2021

Published: Retrospective Look (Updated for 2025 Users) Alternatively, if you have a legitimate copy from

Stay safe, and enjoy the legacy of Big Sur. But why “2021”

But why “2021”? macOS Big Sur was originally released in November 2020. The 2021 versions (specifically 11.2, 11.3, and 11.4) contained critical stability fixes, better M1 emulation support, and security patches that the initial 2020 launch lacked.

# If the installer is in your Applications folder ls -la /Applications/Install\ macOS\ Big\ Sur.app Open Disk Utility or use Terminal:

mv ~/Desktop/BigSur2021.iso.cdr ~/Desktop/BigSur2021.iso You now have a pristine, bootable macOS Big Sur (2021) ISO. The 2021 ISO is specifically required for VMware because newer macOS versions (Ventura+) require hardware NVRAM fixes that break on older VMware versions.