it is possible to put a EXT2 filesystem on a CD in order to use it as an
read only root filesystem. This requires a boot floppy, which holds the
kernel. The only way to avoid such a floppy is to create a bootable CD.
El Torito is the name for a standard to boot CDs. It is about 20 pages
and you can find it at
http://www.phoenix.com/techs/specs.html
The problem with El Torito is that it was designed to be compatible with
ISO9660 and not with EXT2 (must be some kind of bug ;-). In order to be
able to boot directly a EXT2-CD, the EXT2 format needs some changes.
Those parts need to be left untouched by the EXT2, where the BIOS
expects the El Torito information.
Now my question: Is here anybody who is able and interested in extending
the EXT2 filesystem to be able to create bootable EXT2 CDs?
Please tell me, when you think, that I am totally wrong and that the
idea of a bootable EXT2 CD is complete nonsens. I don't know much about
EXT2 and bootable CDs.
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