> From: "Edward Dekkers" <[EMAIL PROTECTED]
>
> > This might not work for you, but I had a similar problem a
> > while back.
> I
> > posted about it and got no replies back, but I figured out a
> > solution. My system has both IDE and SCSI in it, and RH7.3
> > wouldn't load up my
> AHA1542CP.
> > It kept bitching about DMA problems. No matter what I did to the
> > card, RH
> just
> > flat out refused to work with it. Ironically, it worked fine
> > under RH7.2.
> >
> > I recompiled the 7.3 kernel and turned OFF Plug and Play
> > support and
> voila,
> > the card came to life. Everything's happy now. Of course, this
> > wouldn't
> help
> > you if all you have are SCSI cards. But it might be worth it to
> > find an
> old
> > 2Gb IDE laying around somewhere.
>
> I will try this if Tom's suggestion doesn't work. It sounds
> painfully like what I have here :(
>
> If only the installation would somehow allow me to 'FORCE'
> detection, seeing the SCSI HDD is the only HDD in the PC. Ironically
> the CD-ROM is IDE.
>
> ....these things were sent to try us....
>
> Regards,
> Ed.
>
Ed,
If all else fails, you may try also a possible solution below I
found on a Google Groups search. My RedHat 6.0 SCSI How-To also refers
to this problem with some Adaptec 154x cards.
----snip >
Search Result 54
From: [EMAIL PROTECTED] ([EMAIL PROTECTED])
Subject: THANKS: Slackware 3.0 and AHA1542
Newsgroups: comp.os.linux.setup, comp.os.linux.hardware,
comp.os.linux.networking
View: (This is the only article in this thread) | Original Format
Date: 1996/01/20
I just want to thank all the people that tried to help me with my
Adaptec 1542
and Slackware 3.0 problem. As it turns out, some of the Adaptec 15xx
cards get
messed up when the Slackware or Redhat Boot disks go looking for the
cards. The
BusLogic scan before the Adaptec one screws up the Adaptec card
temporarily. The
fix is to at the Boot: prompt assign a strict Base address to the
Adaptec and a
bogus one to the BusLogic. i.e. if Adaptec installed at 0x330 use the
following:
Boot: ramdisk adaptec=0x330 buslogic=0x334 <---- Slackware
Boot: linux adaptec=0x330 buslogic=0x334 <---- Red Hat
The Source of the Solution: Redhat-FAQ (provided by caracal on
#linpeople undernet)
Thanks again and happy Linuxing! ;)
Mike Evans
Support Systems Analyst
Arizona State University
<[EMAIL PROTECTED]>
---snip->
At the first install screen, you could try the 'boot: linux
adaptec=0x330 buslogic=0x334' lines. You may also try changing the
'adaptec=0x330' to 'aha1542=0x330'. It seems that some 1542s were
plug-n-play aware and some weren't. Mine is a 1542CF, and I distictly
remember having to use "Expert" mode, but I assumed it was because the
bios of my machine refused to find the card at the adaptec "default"
of 0x330 - I ended up using 0x180 instead.
Happy hacking !!!
Tom
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