VBoxManage modifyvm "BigSur2021" --cpu-profile "Intel Core i7-6700K" VBoxManage setextradata "BigSur2021" "VBoxInternal2/EfiGraphicsResolution" "1920x1080" VBoxManage modifyvm "BigSur2021" --nested-hw-virt on
, requiring at least 8GB RAM and 60GB disk space. While Big Sur was the first to support Apple Silicon (M1 chips) and is now retired, security updates were issued into 2026. Are you setting this up for a Virtual Machine Bootable USB macos big sur iso 2021
💡 : In 2021, Big Sur was the "bridge" OS that successfully transitioned the Mac into the ARM era, despite some growing pains in visual consistency and early-version stability. If you are looking for specific info, let me know: If you are looking for specific info, let
Apple does not offer a direct ISO download. You must download the official installer first and then use the to convert it. 1. Download the Installer Download the Installer If you cannot use a
If you cannot use a Mac, you can find pre-made ISO images on archival sites.