USB Mass Storage Class Devices

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Revision as of 19:18, 3 July 2009 by osdev>Madeofstaples (New page: The contents here were originally located on the USB entry but have been moved here to provide minimal information until replaced with more details. == Booting off of a USB flash disk...)
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The contents here were originally located on the USB entry but have been moved here to provide minimal information until replaced with more details.

Booting off of a USB flash disk

If the BIOS supports it is it as simple as selecting USB-FDD in the boot order and putting a simple bootloader (grub might do, I rolled my own) into the first 512 bytes of the device. The BIOS will handle all the fancy PCI / USB stuff via int 0x13. Note that there is no need for any specific filesystem or partitions (which means you can just "dd" a 2.2 linux kernel (which used to contain a simple floppy loader) to /dev/sda and it will easily come up).

See Also

Forum Topics

  • USB stick - discusses the feasability of booting from an USB memory stick
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