OS/2, eCS & ArcaOS - Technical > Hardware

AMD 8-Core, UEFI and eCS 2.1 a No Go

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Ben:
I recently bought an AMD 8-core computer.

I took the hard drives, (one with a working copy of eCS 2.1), from my old machine, (Intel 4-core), and put them into the new machine.

When I try to load eCS 2.1 from the new machine I get a Trapd on start up.

I tried the eCS 2.1 installation CD with similar results.

I tried Lars Erdmann's solution(s) as far as I could take it, but I do not have a copy of eCS 2.2 beta, so some of his options are not open to me.

Enabling ACPI in the eCS 2.1 boot disk prevents the trap, but the system stops right after, (during?), the kernel load(?) providing no additional data. Using Alt-F2 provides nothing new either.

Has anyone been able to get eCS 2.1 working on a similar setup?

Thanks.

Eugene Gorbunoff:

do you disable EFI?
did you tried boot with danis506
did you switched USB 3.0 to 2.0?

Martin Iturbide:
Check the mainboard and the BIOS options.

On Intel, for example, you can change the UEFI to Legacy mode.

Ben:
Thanks for replying people.

I'll list Lars' solution to avoid repeats:


--- Quote ---Hallo,

my PC died and it was too old to fix it. I therefore pulled out the SATA harddisk, got a new PC and installed the harddisk. I did not have a close look at the new PC, I was kind of in a hurry. The new PC has an AsRock "Extreme4 blablabla something" MOBO with an 8 core AMD CPU.

1) the new PC has an UEFI BIOS. On the other hand, it also has CSM (compatibility support module -> legacy BIOS "fake") which is enabled.

2) the new PC allows/expects hard disks with the conventional MBR layout (instead of GPT layout). Therefore my existing harddisk is OK to use without any change.

3) the new PC allows to only activate 1 core out of the possible 8 cores. I did so for what follows.

4) the new PC supports AHCI but also IDE compatibility mode. I tried both. If I tried with AHCI I always made sure that I selected OS2AHCI.ADD as the first hard disk driver via the setup menu, see below.

I now have the problem that my OS/2 partition is corrupted and needs a chkdsk. I thought I'd just boot with the install CD, go to maintenance console, open a command line and fix it (plus update the CONFIG.SYS to match the new HW). Just booting the partition was not an option as it would hang after loading IBM1FLPY.ADD (obviously something to remove as I no longer have a floppy drive ...).

a) if I boot with eCS 1.2 install CD and after doing my selections in the setup menu, I get a trap in SCREEN01.SYS (presumably). It does not matter what options I select as I found out that I need ACPI.PSD in order to prevent the trap

b) if I boot with eCS 2.0 install CD and after doing my selections in the setup menu, I'll get a hang with ACPI.PSD selected. Looks like the ACPI.PSD is too old (it's the one predating David's builds). If I do not select ACPI.PSD, I'll get the trap as in a)

c) if I boot with eCS 2.1 install CD, see b)

d) if I boot with eCS 2.2 beta preview CD and after doing my selections in the setup menu, it boots fine. But it does not allow to access any harddisk partitions ...


--- End quote ---


I have UEFI set to UEFI & Legacy in the BIOS.

With respect to the eCS 2.1 boot CD, I tried the different variants of Dani506 that are available as well as all options available to ACPI and did some config.sys editing as mentioned in Lars' post above.

I know of no way of "disabling" EFI other than mentioned above; I am assuming that is what you meant Eugene.

With regard to switching USB 3 to 2, I did not see that option in my BIOS, but I'm going to give it another look after this post incase I overlooked it.

Martin Iturbide:
Hi Ben

Just to have more information about your AMD 8-core computer.
Can you tell the mainboard brand and model and your AMD processor model?

...just a wild shot... I had found very strange behavior of eCS 2.1 installation when the media CD is corrupt, can you also check that (sorry if it is too basic).

Regards.

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