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Author Topic: ESP EFI boot0af (GPT) vs boot0ss (MBR)  (Read 898 times)

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Offline chrisNova777

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ESP EFI boot0af (GPT) vs boot0ss (MBR)
« on: December 13, 2023, 12:16:35 AM »
boot0af
Used for BIOS booting on GPT partition.
boot0af (boot0 Active First) bootloader try to boot the active partition defined in MBR. If there is no active partition, it will try to boot the first EFI/FAT32/HFS partition (defined in the MBR and then the GPT) with a valid PBR signature.

boot0ss
Used for BIOS booting on MBR partition.
boot0ss (boot0 Signature Scanning) bootloader try to boot the first EFI/FAT32/HFS partition (defined in the MBR and then the GPT) with a valid PBR signature. If no partition is found it will try to boot the active partition defined in MBR.

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