Macos Big Sur Iso 2021 May 2026

Published: Retrospective Look (Updated for 2025 Users)

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

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. macos big sur iso 2021