Re: Motherboard design specifically for Linux

Simon Kenyon (simon@koala.ie)
Thu, 22 Oct 1998 12:29:15 +0100 (BST)


> Now, how would you like to make it be self contained? If the machine you
> build doesn't have a floppy, it doesn't need to have an LS120, or a CDROM or
> whatever anyway, so no more luck than with a floppy ... you'd need to take the
> machine apart again.

i build machines *with* an ls-120, but *without* a std floppy
after all, the ls-120 will read/write ordinary floppies
i suspect that this will become a common situation as the price of ls-120
drives drops and the size of hard disks increases

> And, should you have two boot time selectable kernel images in the flash,
> one for actually being run and the other as a backup for when eg. upgrading
> the kernel, a situation where you would need to re-flash the flash fully
> would happen only very very seldom.

seeing as how this would be a new motherboard/new bios i wouldn't be so sure of
that

> And I think that when this happens, it's worth to have the trouble with
> using a second computer and a serial cable, instead of having support
> for every device you can load the kernel from in the boot/kernel loader
> part of the flash.

i have an alpha which will will not recognise the ls-120 as a boot device and
an adaptec 2940u2w which it also does not recognise as a boot device. seems
like the prom monitor on a machine should support all the devices that can be
connected to the "on-board" device controllers - floppy, ide (ls-120, zip,
cd, disk) and possibly scsi. it should also support the "standard" file system
for the expected OS (Linux) - so it should support ext2. don't tell me that a
motherboard which is designed specifically for linux would only support the
ms-dos file system. that would make the whole project the subject of ridicule
(and rightly so)

as it is - i'll commit to buy some 5+ of the boards if and when they are built.
so i'm not just spouting off with no intention of participating

that is a point - now that i come to think of it
what sort of price are we talking about for these boards?
$100 (cheap) - $250 (bearable) - $1000 (forget it)

--
simon
--
simon

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