Re: Compact flash + IDE/CF adaptor + 486 ->problem

Hello again,

I am using a CF2IDE adaptor on a Cyrix 486 SLC/40 based system. But it's
no
special board, I got it from my aunt's old pc. It works perfectly.

You're lucky !! :-)

I don't think so, because I am really tight on memory (normal 30pin-SIMMs 1
Mb each ... 8x1 = 8 and more isn't possible. I never saw any simms with more
than 1 Mb and I doubt it would be recognized.)

You could try to put the CF adaptor as hda. Is it jumpered correctly?

The are two jumpers. First selects master/slave. It works. Second, I
was told that was for select the source of power, between +5v and +12v,
both from a floppy connector. As I have both 5 and 12 applied to the
floppy conector to the CF-IDE adapter, tried to change the jumper and
nothing happened. Anyhow, I cannot configure it as a master, because it
has no operating system yet, so when trying to boot from it, it will
fail and I won't be able to check if Linux sees it.

My adaptor has only one jumper (the single CF one). I would try to jumper it
as master and boot the kernel from a floppy disk (simple zimage will do), if
that's possible with your board.
Otherwise you could fill the CF with a operating system using DOS or
Syslinux. Then you could directly boot from it and maybe you'd see the
error. My adaptor doesn't work as good if I jumper it as slave. Sometimes it
doesn't recognize the card, but I would have to check again to be sure. I
don't need it - I don't try it :-)

Are you sure the CF works flawlessly in a camera or a card reader?

Yes, I have checked both the adapter and the 128 Mb CF in my Pentium IV
and it works great.

If you tried other CFs in your adaptor...

Did you try another (maybe smaller) CF?

Yes, I also tried a 8 and 32 Mb CF in the adapter. Both work OK in my
Pentium but neven on my 486's

.... then the CF will also be alright.

The same version worked for me also. Right now I am running a 2.6 but it
takes too much memory (I've got only 8 Mb).
You should - if not needed otherwise - only include the IDE support.
CF2IDE
makes the system think it is using a true (spinning) IDE disk, not as a
flash chip. Maybe you just have to kick out some things.

I compiled with IDE and aaaaaaaaaall the modules which might have any
relation with memories, flash, mtd, rom.... everything...!

Maybe - I doubt it, but worth a try - all the modules disturb each other.
You could try to create a kernel as small as possible. No module support, no
flash support, nothing except floppy and IDE hard disk support.

I found out that with only one CF inserted (I've got also a dual adaptor
with both hda and hdb as CF disks) I don't need any power supply for it.
The
TTL levels are enough to power the CF :-)

I hope I can reach that stage sometime...! :-)

My other problem is linux, as I can't get it to work as I want to.
My only requirements are:
=> kernel, busybox, nfs server
=> serial console (now I have a graphics adaptor which I want to remove)

But I can't get it to work... no idea how shared libs and so on work.
Nothing worked yet.
Only static builds and simply copying the host libs (thank god they're
386-compiled *g*)

Hope this helps,
Sebastian


.

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