hdiutil convert /tmp/BigSur.dmg -format UDZO -o ~/Desktop/macOS_Big_Sur.dmg Use code with caution. Copied to clipboard
That’s where an DMG (Disk Image) comes in. This article provides the legitimate, Apple-signed method to obtain the installer—without third-party malware risks, expired certificates, or broken links. macos big sur dmg download exclusive
hdiutil create -o /tmp/BigSur -size 14g -layout SPUD -fs HFS+J Mount the Image hdiutil convert /tmp/BigSur