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linux hdc=ide-scsi

(the drive is the secondary master)

thanks for any help,
dan

linux hdc=ide-scsi

(the drive is the secondary master)

thanks for any help,
dan

Quote:

> try from the (root) prompt
> load the module for ide-scsi support:
>         modprobe ide-scsi
> load the module for generic scsi cd support:
>         modprobe sr_mod

Where can I find sr_mod?

TIA

John Foster

Thanks, Jason!

John

Cdrecord 1.9 (i686-pc-linux-gnu) Copyright (C) 1995-2000 J?rg Schilling
Linux sg driver version: 2.1.38
Using libscg version 'schily-0.1'
scsibus0:
 0,0,0   0) 'MATSHITA' 'CD-ROM CR-586   ' 'KS15' Removable CD-ROM
 0,1,0   1) 'HP      ' 'CD-Writer+ 8200 ' '1.0f' Removable CD-ROM
...

Problem, my matshita is a cd reader, and I can't mount it anymore.  Same
for the CD-Writer.

for cd-writer it says:

mount: block device /dev/cdrom1 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/cdrom1,
       or too many mounted file systems

and for the matshita:

mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
       or too many mounted file systems

I've set the link for cdrom1 to /dev/scd1

Any idea.....
Do I have to rebuild the kernel like?
I don't have sr_mod preinstalled, is it really required?

By the way, it worked directly after the install with my previous Mandrake
7.0 installation.

Thanks!

If I remove the line
        /sbin/modprobe ide-scsi
from /etc/rc.d/rc.local (and reboot)
then the ZIP drive works fine again but of course the CD-RW doesn't.

My guess is that what's happening is that ide-scsi is coming in and
grabbing all the devices it can see that haven't been claimed yet, but
that allowing it to do that within /etc/rc.d/rc.local lets it do its
work too early.

What does work (for me) is to leave the modprobe line out from
/etc/rc.d/rc.local and then enter it manually after the machine has
booted. I'd like not to have to do that, though, so does anyone know
where the "best" place would be to put the modprobe command?

John Foster

http://www.linuxgazette.com/issue57/stoddard.html

With a lot of experimentation, I managed to make it work perfectly for me.
Hope it can help you too!

I leave the "/sbin/modprobe ide-scsi" in the rc.local script file but add
these lines to the /etc/modules.conf file
(Note that the article state /sbin/insmod, I'm not sure if it does the same
with these parameters)

alias parport_lowlevel parport_pc
alias sound-slot-0 emu10k1
alias usb-controller usb-uhci
alias eth0 ne
options ne io=0x220 irq=5
# added this for ide-scsi of my CD-RW on hdd
# and a regular cdrom on hdc
alias scd0 srmod
alias scsi_hostadapter ide-scsi
options ide-scsi
options ide-cd ignore=hdd
# end

and most important, I modified my image section of lilo.conf as follow:

image=/boot/vmlinuz-2.2.16-22
     label=linux
     read-only
     root=/dev/hda2
     append="hdc=ide-cd hdd=ide-scsi"

and of course, run /sbin/lilo to apply changes and reboot.
Now, cdrecord -scanbus reports correctly and I can mount my regular CDROM.  I
havent tried to burn a cd yet but I'm confident it will work fine as it used
to work with my previous installation.

Thanks for your observations, it really helped me get on the right track.