This point release primarily focused on bug fixes and security patches:
Open and enter the following creation command (replace MyVolume with the exact name of your USB drive):
Name your blank USB flash drive "" using Disk Utility for easy targeting. Execution via Terminal Connect your 16GB+ USB drive to your computer. Open Terminal . Execute the standard Apple creation path tool command:
What of Mac are you targeting for this installation? macos big sur 1121 installer dmg
The macOS Big Sur 11.2.1 installer (build 20D75) is a reliable and important version of macOS 11, most notable for fixing a significant installation bug that could lead to data loss. While downloading the DMG from the Mac App Store is the safest approach, using third-party sources requires careful verification.
sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/BigSurInstaller --nointeraction Use code with caution.
A: Yes, but it requires additional tools like OpenCore-Legacy-Patcher or Big Hedge Patcher . These tools allow macOS to run on older hardware that Apple no longer officially supports. This point release primarily focused on bug fixes
Addressed vulnerabilities that could allow applications to execute code with kernel privileges.
softwareupdate --fetch-full-installer --full-installer-version 11.2.1 to download it directly to your Applications folder. Direct Link : Third-party databases like Mr. Macintosh provide direct links to the official InstallAssistant.pkg files hosted on Apple’s content delivery network. 2. Creating a Bootable USB (Optional)
For those who need the exact 11.2.1 build (20D75), you may need to find it on third-party websites. Some online tech communities, such as the Chinese site mfpud.com , have hosted these DMG files. However, this method carries risks. Execute the standard Apple creation path tool command:
Type your Mac user password, press , and type Y to confirm erasing the drive.
Open your Terminal and execute the following commands in sequence to generate a clean, uncompressed DMG file: