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Channel: What makes a floppy disk bootable? - Retrocomputing Stack Exchange
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Answer by adrian for What makes a floppy disk bootable?

Short answer: A magic number (0xAA55) being at the end of the first sector on the floppy.Slightly longer answer: "Booting" means that the first 512 bytes of the floppy are copied to memory (usually at...

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Answer by rackandboneman for What makes a floppy disk bootable?

Addon, answering an aspect explicitly asked about in the question.A "dd image" of a complete floppy disk, unless dd is used with special (skip/count) parameters, will always carry the parts that make a...

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Answer by RonJohn for What makes a floppy disk bootable?

what about the image makes it bootable?An operating system "kernel" sitting at track 0 sector 0.EDIT: if "data", or a program that doesn't have the necessary code to finish booting the system, is at...

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Answer by Jules for What makes a floppy disk bootable?

The notion of a bootable-vs-non-bootable floppy is a little odd. It's worth noting that almost all floppies you're likely to have are actually bootable: it's just that they boot a program that isn't...

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Answer by Raffzahn for What makes a floppy disk bootable?

what about the image makes it bootable?The program(s loader) starts at Track 0 Sector 0 of a deviceI'm interested in making my own bootable floppy images for an IBM PCWrite the program to be executed...

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What makes a floppy disk bootable?

A lot of web sites describe how to create a bootable floppy disk using an existing image (via dd). But what about the image makes it bootable?I'm interested in making my own bootable floppy images for...

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