by I have a 486DX2-66 machine with 32 MB memory, 500MB of IDE disk, a
Soundblaster SCSI-2 card (which is a Soundblaster combined with an
Adaptec SCSI controller on the same card), and a Toshiba 3401 SCSI
CDROM drive. The Soundblaster card employs an Adaptec SCSI host
adapter (the Adaptec hardware is actually mounted on the SoundBlaster
board).
Drew Eckhardt (the author of the Linux SCSI-Howto) says:
It should be using an AIC-6260 chip, this is compatable with the
Adaptec 1520. However, the 1520 autoprobe routine may not work, so
you may have to use the LILO command line overrides for the driver
(see the SCSI HOW-TO) to make it work even if it is going to work.
I've just bought the Yggdrasil CDROM Linux distribution with the
Revision B Fall 93 boot disk. Drew also says:
Also note that the Adaptec 1520 driver isn't in any kernel released
before .99.14, and that there are a few bugs in the revision that made
it into the first Yggdrasil boot disk that had it although they have
released a new boot disk that you should be able to get via anonymous
ftp from them. [This is the Fall93 rev B boot disk I have.]
So today I tried the Yggdrasil boot disk and cdrom, to no avail. [It
is supposed to boot up directly using the boot disk and the cdrom,
without requiring hard-disk installation first, and this has worked
for at least one other person I know with a different CDROM/controller
configuration.] LILO begins booting, does detect the Soundblaster
part of the Soundblaster SCSI card, apparently fails to detect the
CDROM--it seems to think that the CDROM has just had a reset or has
just been opened-- and eventually hangs after issuing lots of error
messages about areas it cannot read (evidently because these are on
the undetected CDROM).
The SCSI-HOWTO helpfully supplies (what I think are) the required
parameters to activate the driver properly. However, the "normal" way
to interrupt the Linux LILO process seems to be to type <alt> or
<ctrl> at the LILO startup message--at least that's what the
Installation HOWTO says. Ydggdrasil docs warn me not to type anything
here, but typing either <alt> or <ctrl> has no effect.
How do I interrupt the Yggdrasil LILO and boot process, and get to
where I can manually enter parameters? Apparently the Yggdrasil boot
disk and its LILO don't match the "normal" Linux interruption
convention here (as outlined in the Linux "Installation-HOWTO).
I'd be happy to handle most of this myself, but I need info that only
Yggdrasil seems to have. (This has been sent to them as well.)
Has anybody else handled this sort of problem before? Any help
would be appreciated.
Thanks
-- Les
Institute of Safety and Systems Management
USC
927 West 35th Place
Los Angeles, CA 90089-0021 USA
Voice: 213.740.4046
Fax: 213.740.9732
================ From SCSI-HOWTO: ================================
Subsection C : Adaptec 151x, 152x (ALFALFA diffs)
ALFALFA diffs are available from tsx-11.mit.edu:/pub/linux/ALPHA/scsi
0.99.13.scsipatch.txt
A bootable kernel incorporating the ALFALFA disks is
0.99.13.scsipatch.zImage
Supported Configurations :
Addresses : 0xd8000, 0xdc000, 0xd0000, 0xd4000, 0xc8000, 0xcc000, 0xe0000,
0xe4000.
Ports : 0x140, 0x340
IRQs : 9, 10, 11, 12
DMA is not used
IO : port mapped
Autoprobe : works with all supported configurations, requires installed BIOS
Autoprobe Override :
Compile time :
Define PORTBASE, IRQ, SCSI_ID, RECONNECT as appropriate, see Defines
LILO commandline : aha152x=<PORTBASE>,<IRQ>,<SCSI-ID>,<RECONNECT>
Defines :
AUTOCONF : use configuration the controller reports (only 152x)
IRQ : override interrupt channel (9,10,11 or 12) (default 11)
SCSI_ID : override scsiid of AIC-6260 (0-7) (default 7)
RECONNECT : override target dis-/reconnection/multiple
outstanding command - set to non-zero to enable, zero to
disable.
DONT_SNARF : Don't register ports (pl12 and below)
SKIP_BIOSTEST : Don't test for BIOS signature (AHA-1510 or disabled BIOS)
PORTBASE : Force port base. Don't try to probe