[ale] anyone know how to install a SCSI CDROM in RedHAT ?

Eric Z. Ayers eric.ayers at mindspring.com
Sun Jul 16 10:33:59 EDT 2000


Courtney,

I don't have a 2.0 kernel with scsi, but I do have a 2.2 one with a
scsi cdrom.  Sorry, I didn't see if someone had already answered your
question. 

1) you should see some boot messages that your CDROM is recognized.
   Look through the output of 'dmesg'.  Here's what ours looks like at 
   home.  We have 2 devices on the SCSI bus:

sym53c8xx: at PCI bus 0, device 11, function 0
sym53c8xx: 53c810a detected 
sym53c810a-0: rev=0x12, base=0xe7000000, io_port=0xe400, irq=10
sym53c810a-0: ID 7, Fast-10, Parity Checking
sym53c810a-0: restart (scsi reset).
scsi0 : sym53c8xx - version 1.3g
scsi : 1 host.
  Vendor: YAMAHA    Model: CRW4416S          Rev: 1.0g
  Type:   CD-ROM                             ANSI SCSI revision: 02
  Vendor: SCANNER   Model:                   Rev: 2.02
  Type:   Scanner                            ANSI SCSI revision: 01 CCS
Detected scsi generic sgb at scsi0, channel 0, id 6, lun 0

Or, look in /proc, (but this might not be in 2.0.30

$ cat /proc/scsi/scsi 
Attached devices: 
Host: scsi0 Channel: 00 Id: 03 Lun: 00
  Vendor: YAMAHA   Model: CRW4416S         Rev: 1.0g
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
  Vendor: SCANNER  Model:                  Rev: 2.02
  Type:   Scanner                          ANSI SCSI revision: 01 CCS

2) Your /dev/scd0 device should display as follows when you 
[eric at curious /dev]$ ls -l /dev/scd0
brw-rw----   1 root     disk      11,   0 May  5  1998 /dev/scd0

   If it doesn't, then cd /dev
   ./MAKEDEV sr         

   should create them for you.

I think that sr0 used the be the 'old' name of the scsi cdrom.  maybe
it is named 'sr0' instead on 2.0.30?


3) Maybe it really isn't built into the kernel or some other piece is
missing, like the hostadapter - or possibly it was built as a module
and you need to do an 'insmod' on the appropriate kernel drivers.

Regards,
-Eric.


Courtney Thomas writes:
 > Greetings !
 > 
 > I compiled SCSI CDROM into the kernel [2.0.30, don't ask] and believe that maybe scd0 should be the device, but when I.....
 > 
 >     mount -r -t iso9660 /dev/scd0 /cdrom
 > 
 > I get.........
 >     the kernel does not recognize /dev/scd0 as a block device
 > 
 > What is wrong and how do I fix it ?
 > 
 > Appreciatively,
 > Courtney
 > <!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
 > <HTML>
 > <HEAD>
 > 
 > <META content=text/html;charset=iso-8859-1 http-equiv=Content-Type>
 > <META content='"MSHTML 4.72.3110.7"' name=GENERATOR>
 > </HEAD>
 > <BODY bgColor=#ffffff>
 > <DIV><FONT color=#000000 size=2>Greetings !</FONT></DIV>
 > <DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
 > <DIV><FONT color=#000000 size=2>I compiled SCSI CDROM into the kernel [2.0.30, 
 > don't ask] and believe that maybe scd0 should be the device, but when 
 > I.....</FONT></DIV>
 > <DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
 > <DIV><FONT color=#000000 size=2>&nbsp;&nbsp;&nbsp; mount -r -t iso9660 /dev/scd0 
 > /cdrom</FONT></DIV>
 > <DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
 > <DIV><FONT color=#000000 size=2>I get.........</FONT></DIV>
 > <DIV><FONT color=#000000 size=2>&nbsp;&nbsp;&nbsp; the kernel does not recognize 
 > /dev/scd0 as a block device</FONT></DIV>
 > <DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
 > <DIV><FONT size=2>What is wrong and how do I fix it ?</FONT></DIV>
 > <DIV><FONT size=2></FONT>&nbsp;</DIV>
 > <DIV><FONT size=2>Appreciatively,</FONT></DIV>
 > <DIV><FONT size=2>Courtney</FONT></DIV></BODY></HTML>
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