> On Jun 21, 2020, at 11:44 AM, Mike Tremaine <m...@stellarcore.net> wrote:
>
>
>
>> On Jun 21, 2020, at 11:38 AM, John Paul Adrian Glaubitz
>> <glaub...@physik.fu-berlin.de> wrote:
>>
>> On 6/21/20 8:33 PM, Mike Tremaine wrote:
>>> And the oops was in the log I just couldn’t see because of the local
>>> console 640x480 but via ssh I can
>>>
>>> Jun 21 18:30:16 partman: Found a sun partition table in /dev/sda1
>>> Jun 21 18:30:16 kernel: [ 1184.765065] Unable to handle kernel NULL pointer
>>> dereference
>>> Jun 21 18:30:16 kernel: [ 1184.765110] tsk->{mm,active_mm}->context =
>>> 0000000000000e99
>>> Jun 21 18:30:16 kernel: [ 1184.765123] tsk->{mm,active_mm}->pgd =
>>> fffff8001b64c000
>>> Jun 21 18:30:16 kernel: [ 1184.765136] \|/ ____ \|/
>>> Jun 21 18:30:16 kernel: [ 1184.765136] "@'/ .. \`@"
>>> Jun 21 18:30:16 kernel: [ 1184.765136] /_| \__/ |_\
>>> Jun 21 18:30:16 kernel: [ 1184.765136] \__U_/
>>> Jun 21 18:30:16 kernel: [ 1184.765150] kworker/0:1H(103): Oops [#1]
>>>
>>
>> Can you try replacing the IDE cable or try a different disk?
>>
>> Adrian
>>
>
> Yes, I’ll try hardware combos. This is basically an attempt to get a PCI ATA
> card working end to end, from Openboot to OS, without touching the original
> IDE. I have this card working with openbsd and the Openboot instructions I
> posted a few years back but I could not get the drives seen by Debian 9
> installer, was hoping to get further this time, which I have. I’ll post back
> if I have more details.
>
> Thanks for the help.
>
> -Mike
Sadly no good outcome. Different cables made no difference, I tried a PDC20269
Card (which uses pata_pdc2027x
<https://github.com/torvalds/linux/blob/master/drivers/ata/pata_pdc2027x.c>)
and in that case I can not see the disk nor the cdrom once the kernel has
loaded. (Which is consistent with Debian 9 SILO installer on that card)
That is I can boot the cd and then when it comes to the stage of loading from
the media it can not be found. asmod shows the pdc2027x drive is loaded and
lspci shows the card but no devices are on it.
The PDC20267 (Promise ATA 100 using pata_pdc202xx_old) is the original card I
was working with today and it can’t make the filesystem. [Opps posted]
I went ahead and tried OpenBSD6.7 on this new disk to see if it works and it
does. So I’m right back where I was before I began this exercise. I need to
find a HighPoint HPT366 the non-raid kind of card to see if it can been used. I
know I tried at least one SILxxx and it was not useable by OpenBoot. I’ll keep
thinking about ways around this. I wonder if the FCode linking I do to the card
somehow limits the DMA mode to match the onboard limit. It’s kind of a blackbox
to me. But I thought once the kernels take over they would sort it out.
-Mike
