Re: 868c1b8431f2 - main - fstyp: detect Raspberry Pi Pico boot filesystem as FAT

From: Ed Maste <>
Date: Wed, 30 Mar 2022 16:57:02 UTC
On Tue, 29 Mar 2022 at 19:05, Ravi Pokala <> wrote:
> "0x55 0xaa" at offset 510 is the signature for a (P)MBR partition table, not a FAT filesystem.

The FAT boot sector (also) uses a signature of 0x55 0xAA at offset
510, although not all FAT filesystem images have it. A later fstyp
change should remove this check altogether, but I want to find a
variety of FAT images first for testing.