So MBR partitions? Or no partitions, like from a floppy? Or perhaps it doesn’t k... | Hacker News

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mixmastamyk on June 19, 2025 | parent | context | favorite | on: Show HN: A DOS-like hobby OS written in Rust and x...

So MBR partitions? Or no partitions, like from a floppy? Or perhaps it doesn’t know because grub handles that part.

krustowski on June 20, 2025 [–]

For FAT12, it reads the first sector (0 or bootsector) of the floppy provided to gather information like bytes per sector, reserved sectors count, LBA of the root directory, etc.

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