Can't use scsi cdrw with Arjan's 2.6.4-1.257smp kernel

[Barry Myrvold]

Sirs -
        I upgraded to Arjan's 2.6 kernels, installed the corresponding
utilities and made the appropriate modifications suggested in the 2.6
upgrade help sites previously mentioned on this list.  For some time, I
have not been able to use my scsi cdrw.  When running xcdroast or kb3, I
get error messages.  For example on xcdroast it says:

scsidev: '1,1,0'
scsibus: 1 target: 1 lun: 0
Linux sg driver version: 3.5.30
cdrecord: Warning Linux Bus mapping botch.
cdrecord: No such file or directory. Cannot open '/dev/sg*'. Cannot open
SCSI driver.

        Likewise, when I look into the redhat hardware browser, I don't
see any of my scsi hard disks (but they are obviously detected or I
wouldn't be writing this) or the cdrw, and I can't mount any cd's in the
cdrw. xcdroast-scanbus doesn't detect the cdrw either. The scsi scanner
on the same controller shows up and works properly.  

        I'm obviously missing something.  Any suggestions?  

P.S., here's the only mention of the cdrw in the kernel startup log:

(scsi1:A:1): 20.000MB/s transfers (20.000MHz, offset 15)
  Vendor: YAMAHA    Model: CRW8824S          Rev: 1.00
  Type:   CD-ROM                             ANSI SCSI revision: 02
  Vendor: UMAX      Model: Astra 1220S       Rev: V1.3
  Type:   Scanner                            ANSI SCSI revision: 02

And, no error messages in /var/log/messages when trying to mount or
trying to burn using xcdroast.  Here's lspci

00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX Host bridge
(rev 03)
00:01.0 PCI bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge
(rev 03)
00:07.0 ISA bridge: Intel Corp. 82371AB/EB/MB PIIX4 ISA (rev 02)
00:07.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01)
00:07.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01)
00:07.3 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 02)
00:0d.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge
(non-transparent mode) (rev 15)
00:0e.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus
Controller (rev 01)
00:13.0 PCI bridge: Digital Equipment Corporation DECchip 21152 (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation NV28 [GeForce4 Ti
4200 AGP 8x] (rev a1)
02:08.0 USB Controller: NEC Corporation USB (rev 41)
02:08.1 USB Controller: NEC Corporation USB (rev 41)
02:08.2 USB Controller: NEC Corporation USB 2.0 (rev 02)
02:0c.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23
IEEE-1394a-2000 Controller (PHY/Link)
03:09.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev
08)
03:09.1 Input device controller: Creative Labs SB Live! MIDI/Game Port
(rev 08)
03:0a.0 SCSI storage controller: Adaptec AHA-2940U2/U2W / 7890/7891
03:0e.0 SCSI storage controller: Adaptec AIC-7880U (rev 01)


Regards, Barry