Finding the correct download link for an older version like Big Sur 11.2 requires visiting the official source, as the file is rarely hosted on conventional file-sharing sites due to its large size. The safest and most reliable source is the .
Replace the default EFI folder on the USB drive with one tailored to your specific hardware (e.g., your CPU generation) from the Olarila EFI collection Installation Boot from the USB and use Disk Utility to format your target SSD/HDD as
To obtain the correct file, you should visit the official Olarila forum where images are hosted. olarila big sur 11.2.raw download
Click and wait for the process and verification to complete. Step 3: Replace or Configure the EFI Folder
The flashed USB contains a generic EFI partition.To make it boot on your specific hardware, you must replace or update the EFI folder. Open the EFI partition on your newly flashed USB. Finding the correct download link for an older
Download the file. It will typically be compressed as a .rar or .zip file and will be around 12GB to 14GB in size.
Insert your 16 GB+ USB drive into a port (preferably a USB 2.0 port if your motherboard struggles to boot from USB 3.0 during setup). Click and wait for the process and verification to complete
Delete the existing EFI folder on the USB partition and paste your hardware-specific EFI folder in its place. Step 4: Configuring BIOS/UEFI Settings
The system will restart multiple times during installation. Always keep the USB plugged in and choose the internal drive from the boot picker on subsequent reboots until installation is complete. Post-Installation Adjustments
You must write the sector-by-sector RAW image directly to your flash drive. Regular file copying will not work. Using BalenaEtcher (Windows, macOS, Linux) Download and install the free utility . Launch the application.