ide-scsi emulation

vabaliukas · 07-07-2003, 01:21 PM

i use redhat8.0 and i am also runing vmware on top which lets me use windows xp, this is simply for conveniance of those who are not expierianced with linux in my household. so vm ware wants linux to think that dc drives are scsi in order to gaijn full access to reading/writing. cd-rw derive is fine and is recognized as scsi, but dvd isn't. i put this in the grub loader:

hdc=ide-scsi hdd=ide-scsi

but only hdc seems to be working correctly. i can read drom the dvd drive, but not dvd movie data, since that is what the direct access is required for. is there another way to make rh8.0 think of my drives as SCSI? please help.

p.s: i'm not very exoierianced with linux

zmedico · 07-07-2003, 02:16 PM

In /var/log/dmesg, what does it say about the scsi driver?

The CD-Writing HOWTO has some info.

Quote:

If the driver for IDE/ATAPI CD-ROMs is loaded as a module, then the above won't make any difference to you, but make sure you include the options-line from the next listing. The last three lines of that listing are generally suggested to further automate the loading of the required modules.

options ide-cd ignore=hdb # tell the ide-cd module to ignore hdb
alias scd0 sr_mod # load sr_mod upon access of scd0
#pre-install ide-scsi modprobe imm # uncomment for some ZIP drives only
pre-install sg modprobe ide-scsi # load ide-scsi before sg
pre-install sr_mod modprobe ide-scsi # load ide-scsi before sr_mod
pre-install ide-scsi modprobe ide-cd # load ide-cd before ide-scsi

Listing: Example configuration for /etc/modules.conf

If your CD-writer is the only CD-ROM attached to your machine, then remember you have to access the CD-ROM in the writer through the device file /dev/scd× where ×=0,..,8. You may want to change the symbolic name cdrom to point to the new device file name. The listing below shows the command to achieve this with the example scd0.

cd /dev && rm cdrom && ln -s scd0 cdrom

Listing: Making cdrom a symbolic name for scd0

If your CD-writer and CD-ROM-drive are two different devices, then don't change the cdrom symlink.

jailbait · 07-07-2003, 08:39 PM

The problem may be the blank in:

hdc=ide-scsi hdd=ide-scsi

Try:
"hdc=ide-scsi hdd=ide-scsi"

or

hdc=ide-scsi,hdd=ide-scsi

or whatever you can think of that will get the parameter to pass through the parameter scanner correctly.