Re: SCSI CDROM

[Rick Stevens <rstevens vitalstream com>]

Chris wrote:

> I have just installed a SCSI CD-RW and a SCSI controller in my system.  
> When I did the original install of RedHat 7.2 I used a IDE CDROM.  I 
> added the SCSI stuff after the install.  When I boot up, the kernel sees 
> the SCSI controller but does not see the Plexor SCSI CD-RW.  I've used 
> dmesg to verify this. The BIOS sees it fine and if I but a Linux boot CD 
> it will try to boot off of it.  Does this mean I have to recompile the 
> kernel with SCSI CD support or is there another way?  I've used this 
> type of CD in other identically  configured Linux boxes and it works 
> find, but I have never added one after the install.


First off, is the SCSI controller driver loaded?  Since you added
the controller after you installed the OS, the installer didn't put
a command in "/etc/modules.conf" to cause the system to load the driver.

You can "insmod" the driver appropriate to your controller and then
see if the drive is found (e.g. use "cdrecord --scanbus").  If that
works, then add an "alias scsi_hostadapter drivername" line to the
"/etc/modules.conf" file to cause the driver to load when the system
boots.

For example, I have an Adaptec 2942U, so my modules.conf file has a
line, "alias scsi_hostadapter aic7xxx" in it to force the driver to
load.
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- Rick Stevens, SSE, VitalStream, Inc.      rstevens vitalstream com -
- 949-743-2010 (Voice)                    http://www.vitalstream.com -
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-           "I understand Windows 2000 has a Y2K problem."           -
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