Re: ELKS on Amstrad PPC 512

Re: ELKS on Amstrad PPC 512

[Dan Olson]

It took me a minute, but I finally figured out what makes this system
"different" enough that it won't run ELKS, it only has 512k of RAM!  This
may not mean that it's impossible to get ELKS running on this system, but
the pre-compiled versions of the OS expect 640k or RAM.  I suppose someone
else can better answer this, but I believe there is a kernal option that
can be changed at compile time to use less memory.  Being a laptop, I
suppose sticking a little more memory on the bus isn't that easy (on a
machine with ISA slots, a memory board could be added).

	Dan


> Hello happy old computers users :-)
>
> I'm trying to install ELKS on an Amstrad laptop :
> http://www.bolo.ch/?list=2&obj=131 ... This strange PC has a NecV30,
> two 720 kb floppies and 512kb of ram (impossible to upgrade).
>
> Using the boot & root images from elks.images-0.1.0.zip, I obtain a
> message with the root disk :
>
> ---------
> Unable to open /dev/tty (error 2)
> dup failed
> No init - running /bin/sh
>
> panic: No init or sh found
> apparant call stack :
> ---------
>
> Before writing to the list, I've searched via Google groups. A message
> was about compiling with option "BIOS console" as Character device
> driver. But the compilation doesn't succeed :
>
> ---------
> (cd ../.. ; ld86 -0 -i   \
>         arch/i86/boot/crt0.o arch/i86/boot/crt1.o \
>         init/main.o kernel/kernel.a fs/fs.a lib/lib.a net/net.a
> fs/minix/minixfs.a arch/i86/kernel/akernel.a arch/i86/lib/lib86.a
> arch/i86/mm/mm.a  arch/i86/drivers/char/chr_drv.a
> arch/i86/drivers/block/blk_drv.a \
>         -t -M -o arch/i86/boot/system > System.tmp ; \
>         sort -k4 System.tmp > System.map ; rm -f System.tmp )
> undefined symbol: _debug1
> tools/build boot/bootsect boot/setup boot/system > boot/Image
> Root device is (3, -128)
> Boot sector 512 bytes.
> Setup is 1472 bytes.
> Unable to open 'system'
> make[1]: *** [Image] Error 1
> make[1]: Leaving directory `/usr/src/elks-0.1.1/arch/i86'
> make: *** [Image] Error 2
> ---------
>
> Any idea ?
>
> I've found messages showing that ELKS runs well on an Amstrad PPC 640
> (the model with 640 kb of ram). Has anyone succeeded with a PPC 512 ?
> --
>   "S'il n'y a pas de solution,
>    c'est qu'il n'y a pas de problème"
> Proverbe Shadok
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Re: ELKS on Amstrad PPC 512

[Alan Cox]

On Tue, 2002-11-19 at 05:33, Dan Olson wrote:
> It took me a minute, but I finally figured out what makes this system
> "different" enough that it won't run ELKS, it only has 512k of RAM!  This
> may not mean that it's impossible to get ELKS running on this system, but
> the pre-compiled versions of the OS expect 640k or RAM.  I suppose someone
> else can better answer this, but I believe there is a kernal option that
> can be changed at compile time to use less memory.  Being a laptop, I
> suppose sticking a little more memory on the bus isn't that easy (on a
> machine with ISA slots, a memory board could be added).

The code setup and loader stuff assume 640K. It should certainly be
fixable