Slackware 9 CD-burner recognition (?) problem

**theCimmerian** · 09-09-2003

I've been using Red Hat on a dual boot machine and I decided to try Slackware 9. The install was fine, except for my CD-burner. I can't get it to burn CDs. It's an LG, standard IDE cd-burner (if anyone needs the exact model number, I can dig it up.)

I have the hdc=ide-scsi in my lilo.conf and I'm using the pre-packaged scsi.i kernel that was on the ISO. I installed everything on the CD. When I run cdrecord -scanbus, this is the output I get:

"
root@slacker:~# cdrecord -scanbus
Cdrecord 2.0 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jörg Schilling
cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
root@slacker:~#
"

So my questions, to anyone who could help:
1. What's /dev/pg*? I'm not familiar with pg
2. Did I select the right kernel, and if not which one should I use?
3. Slackware 9.0 supposedly installed the kernel source for 2.4.20, but for the life of me I can't find it. Does Slackware install the source in a non-standard location, or am I just an idiot who accidentally unchecked that box during install?

Thanks.

**Hellmasker** · 09-09-2003

pg???
try typing

Code:

ll /dev/scd*

and see if it detects anything.

your sources should be in /usr/src/linux or /usr/src/linux-2.4.20

**theCimmerian** · 09-09-2003

Thanks. I'll check /dev/scd*

There's nothing in /usr/src/, period. I guess the easiest thing to do would be to just download it** directly and build my own. I'm not particularly linux savvy, but the instructions from linuxdoc.org for kernel building are user friendly enough. I've done it before.

** I mean, the kernel. Sorry, I didn't mean to be vague.

**Dolda2000** · 09-09-2003

/dev/pg is a non-linux interface for the generic SCSI access layer. Linux uses /dev/sg*, and while cdrecord checks both /dev/sg* and /dev/pg*, it only reports /dev/pg* in the error message. It's just a cosmetic bug, though.

It could therefore be that you don't have the generic SCSI layer loaded. Try modprobing for sg.

**coshea120** · 01-14-2004

I know this thread is kinda old, but it's my problem almost exactly. I'm running slack 9.0 and cant record CD's. I can read data & music cd's. I tried

Code:

cdrecord -scanbus

and got the same error.
When I try modprobing for sg I get

Code:

root# modprobe sg
Can't locate module sg
# modprobe sg*
/lib/modules/2.4.20/kernel/drivers/sound/sgalaxy.o&#58; init_module&#58; Invalid argument
/lib/modules/2.4.20/kernel/drivers/sound/sgalaxy.o&#58; Hint&#58; insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters.
      You may find more information in syslog or the output from dmesg
/lib/modules/2.4.20/kernel/drivers/sound/sgalaxy.o&#58; insmod /lib/modules/2.4.20/kernel/drivers/sound/sgalaxy.o failed
/lib/modules/2.4.20/kernel/drivers/sound/sgalaxy.o&#58; insmod sg* failed
#

**Dolda2000** · 01-15-2004

Did you compile this kernel yourself, considering that you don't have the sg module? Check in /lib/modules/2.4.20/kernel/drivers/scsi for what drivers are in there.

**Hellmasker** · 01-15-2004

can u run modprobe ide-scsi

**coshea120** · 01-15-2004

Originally Posted by Dolda2000

Did you compile this kernel yourself, considering that you don't have the sg module? Check in /lib/modules/2.4.20/kernel/drivers/scsi for what drivers are in there.

Code:

root# cd /lib/modules/2.4.20/kernel/drivers/scsi/
/lib/modules/2.4.20/kernel/drivers/scsi# ls
3w-xxxx.o     aic7xxx/       g_NCR5380.o  pci2220i.o    st.o
53c7,8xx.o    aic7xxx_old.o  gdth.o       pcmcia/       sym53c416.o
AM53C974.o    atp870u.o      imm.o        ppa.o         sym53c8xx.o
BusLogic.o    cpqfc.o        in2000.o     psi240i.o     sym53c8xx_2/
NCR53c406a.o  dmx3191d.o     initio.o     qla1280.o     t128.o
a100u2w.o     dpt_i2o.o      ips.o        qlogicfas.o   tmscsim.o
aacraid/      dtc.o          megaraid.o   qlogicfc.o    u14-34f.o
advansys.o    eata.o         ncr53c8xx.o  qlogicisp.o   ultrastor.o
aha152x.o     eata_dma.o     osst.o       scsi_debug.o  wd7000.o
aha1542.o     eata_pio.o     pas16.o      seagate.o
aha1740.o     fdomain.o      pci2000.o    sim710.o
root#

Originally Posted by Hellmasker

can u run modprobe ide-scsi

Code:

root@daedalus&#58;/lib/modules/2.4.20/kernel/drivers/scsi# modprobe ide-scsi
modprobe&#58; Can't locate module ide-scsi
root@daedalus&#58;/lib/modules/2.4.20/kernel/drivers/scsi# modprobe ide-scsi*
modprobe&#58; Can't locate module ide-scsi*
root@daedalus&#58;/lib/modules/2.4.20/kernel/drivers/scsi#

**Dolda2000** · 01-15-2004

You don't seem to have any of the user-space interface drivers, only the hardware interface drivers. Did you compile the kernel yourself?

**coshea120** · 01-15-2004

yes, this was built myself. I went into my kernel config and noticed there was no generic scsi driver or ide-scsi emulation, so I added these as modules. I rebuilt the kernel and the modules. Now the sg module is present, but cdrecord -scanbus still throws the same error

Thread Tools

Display

Slackware 9 CD-burner recognition (?) problem

Posting Permissions