Mitsumi Cd-ROM / Sb-Awe 32 Problems !

Mitsumi Cd-ROM / Sb-Awe 32 Problems !

Post by Joni B{cklu » Fri, 06 Jan 1995 00:40:24

Hello, i have an Mitsumi CD-ROM FX-001 D installed on my Linux 1.1.76.
I am using Sb-32 awe as controller for CD-ROM with addr 320 and irq 10.

Under dos it works fine but sometimes under linux i cant mount cdrom
at all or it is wery slow when reading files.

Erros messages : mount: /dev/mcd: can't read superblock ...

And with workbone i got also some I/O erros messages.

Sometimes it works just great.

For LILO i got following : mcd=0x320,10

I think it maybe the Sb that is not just the original controller for the
Mitsumi. But under dos it works fine. ?

Any ideas about this ?



         *          My choice is clear, my choice is Linux         *  


1. SB 16 AWE 32 PnP CD-ROM workaround problem solved!

Greetings all:

I come to you with somewhat goods news.

First of all, this will mostly affect users of 486 and 386 systems of which
have 1 "true" IDE controller with 2 hard drives connected to it, and a
Sound Blaster AWE 32 Plug and Play sound card with their CD-ROM attached to
it, and are running a Windows 95 and Linux combo.  In addition, this "fix"
does not take LILO into consideration, it does, however, require the use of
"LODLIN15.ZIP" which is found in the root user's directory of the Slackware
3.0 distribution install.

Okay, enough with that, on with the show.

Now, Linux didn't like my CD-ROM being connected to the quaternary IDE port
(0x168, 0x36E, IRQ 10) simply because it didn't scan that high for the
presence of the CD.  After trying to add "append=" lines to my "LINUX.BAT"
file which runs LOADLIN v1.5 without any luck, I decided to venture to
Windows 95's device manager.  Select the "Creative IDE CD-ROM Drive" from
the Hard Disk Controllers, check its properties.  Now when you go to
Resources, you should see it being at the above "quaternary" port address.
To change this, deselect "Use Automatic Settings".  Next, pick Basic
Configuration 0003, which should be for the secondary IDE port (0x170,
0x376, IRQ 15).  Click OK, and the computer will chug a little as it
changes the config.

Now, the second step, would be to edit the "DOSSTART.BAT" file in
C:\WINDOWS.  This file should have CTCM loading before running LODLIN's
LINUX.BAT.  And for the CD-ROM to work in DOS, make sure you change the
address in the "SBIDE.SYS" line of the DOSSTART.BAT file to reflect the
changes you made in the Windows 95 Device manager.

Once CTCM is run, and "5 of 5" plug and play devices configured, you should
be able to boot into Linux, and have the kernel find your CD-ROM on IDE1.
Now, I'm taking it for granted that you have already recompiled the Linux
kernel to use IDE/ATAPI CD-ROMs, as well as the secondary IDE channel.

Well, that's about it.  If you have any questions, please feel free to send
me some e-mail, and I can send you my LINUX.BAT and DOSSTART.BAT files if
that's where you are stuck.

Good luck, and God speed!
        Mike Lebrun

2. X takes a long time to load

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