[nzlug] linux on Compaq Evo T20

[Karl.]

I'm trying to get linux to recognise the internal drive (flash) in a 
Compaq Evo T20.

The machine was built to be a thin client (it's reputedly a re-badged 
Wyse 8235LE).  It has a Geode GX1 processor at 300MHz (vaguely 
equivalent to a Pentium Classic at 200MHz).

I'm running Damn Small Linux (DSL) booting via a patched version of 
grub installed in the internal flash (praise be to Dag Sverre Seljebotn 
at http://www.kazak.ws/evo/).  I have grub stage1 and stage2 at the 
beginning of the drive, and a single fat16 partition containing the DSL 
kernel and initrd (and all the rest of the DSL files).  I created the 
fat filesystem with a large number of reserved blocks so that there is 
space for grub stage2 at the beginning of the drive (I tried to get 
stage1.5 to work but didn't get anywhere).

Grub is set with root hd0,0 and starts DSL just fine, loading kernel 
and initrd from the fat partition.  DSL then starts looking for its 
cloop file.  It can't see the copy on hda1 at all (even though the 
kernel and initrd just loaded from there).  I can loop-mount the 
partition image on another machine and the fat filesystem seems fine 
(that's how I got the DSL files onto it). 

If I have my usb drive plugged in then DSL finds that and continues to 
boot.  Once booted, it still can't see hda1.  The ide interface does 
appear in lspci's output.

Booting off USB is almost an acceptable solution for me, but it would be 
nice if I could get it booting completely from internal memory (I only 
have one surplus flash drive and have got 4 T20's - I know that flash 
drives are cheap, but I don't like spending money on something that 
shouldn't be necessary)

What can I try to get the internal flash recognised?  
Parts of dmesg attached below...  
 

Karl.


======
CPU0: NSC Geode(TM) Integrated Processor by National Semi stepping 02
per-CPU timeslice cutoff: 45.71 usecs.
SMP motherboard not detected.
Local APIC not detected. Using dummy APIC emulation.
Waiting on wait_init_idle (map = 0x0)
All processors have done init_idle
ACPI: Subsystem revision 20040326
ACPI: Interpreter disabled.
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: ACPI tables contain no PCI IRQ routing entries
PCI: Probing PCI hardware (bus 00)
PCI: Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x9c)
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found

...SNIP...

Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with 
idebus=xx
CS5530: IDE controller at PCI slot 00:12.2
CS5530: chipset revision 0
CS5530: not 100% native mode: will probe irqs later
PCI: Setting latency timer of device 00:12.0 to 64
    ide0: BM-DMA at 0xfb00-0xfb07, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0xfb08-0xfb0f, BIOS settings: hdc:pio, hdd:pio
hda: C/H/S=27881/83/162 from BIOS ignored
hdb: C/H/S=0/0/0 from BIOS ignored
ide: late registration of driver.