Re: Extended floppy : summary
You want to put MORE data on a disk? It usualy takes me a 10 pack to get
on or two I can boot from, and even then they only last a few hours... I
think this just asking for trouble. :-)
tim...
On Thu, 22 Feb 2001, Thierry Laronde wrote:
> I come back to the subject I have launched.
>
> To summarize, we can use more "space" on a high density double sided floppy,
> by using uncommon format.
>
> There are two problems :
>
> 1) Because these formats are unusual, the BIOS doesn't automagically
> recognize them, and try to access them as normal 1.44 Mb floppies -> you
> need a bootloader to manage the format, and dd'ing Linux can not work
>
> 2) There are safe formats (that can be used everywhere, and that are not
> dangerous for the hardware), and more cutting edges ones. I list only safe
> ones :
> - 1680 Kb (21 sectors of 512b) : safe, work with Lilo, could work
> with a modified GRUB
> - 1760 Kb (11 sectors of 1Kb) : safe, but at the moment, no
> bootloader designed for that
> - Mixed Size Sectors : some safe, but not bootable, the more interesting
> format is the one derived from 2m, because the first track is a
> standard one (18 sectors of 512b). So if a stage1_5 can be put
> here in order to recognize the information and to drive the
> floppy, 1840 Kb can be used
>
> At the moment, at least 1680 Kb can be used. But I will work for some
> support for 2m with GRUB, allowing 1840 Kb.
>
> Cheers,
>
> --
> Thierry LARONDE, Centre de Ressources Informatiques, Archamps - France
> http://www.cri74.org
> PingOO, serveur de com sur distribution GNU/Linux: http://www.pingoo.org
>
>
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