Re: [tlug] CD Writers

[Stuart Luppescu <s-luppescu@example.com>]

On 日, 2002-03-03 at 00:06, Josh Glover wrote:
> ----- Original Message -----
> From: Eric O. Flores <goripi@example.com>
> Subject: Re: [tlug] CD Writers
> 
> 
> > The device file name representing the CD-Writer has to be passed to the
> > driver in the Linux kernel.  Right! for the lilo.conf we add
> hdb=ide-scsi.
> > if the driver is statically compiled into my kernel, which I really don't
> > know! According to the "CD-Writing How To" this is the most common setup.
> 
> Yup. To the best of my knowledge, SCSI emulation can only be compiled into
> the kernel. There is no option to modularise it.

No, you can modularize it. Here are all (I think) the lines from
/usr/src/linux/.config you need to burn CDs:
CONFIG_BLK_DEV_LOOP=m
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDESCSI=m
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
CONFIG_SD_EXTRA_DEVS=40
CONFIG_BLK_DEV_SR=m
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=m
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y

I'm using cdrecord (which contains mkisofs, and a bunch of other stuff),
cdlabelgen, and gcombust, a front end for the first two. It works fine
as root, but I can't get it to run as a regular user. I get this kind of
messages:
/usr/bin/cdrecord: Operation not permitted. WARNING: Cannot do
mlockall(2).
/usr/bin/cdrecord: WARNING: This causes a high risk for buffer
underruns.
/usr/bin/cdrecord: Operation not permitted. WARNING: Cannot set
RR-scheduler
/usr/bin/cdrecord: Permission denied. WARNING: Cannot set priority using
setpriority().
/usr/bin/cdrecord: WARNING: This causes a high risk for buffer
underruns.
scsidev: '0,1,0'
scsibus: 0 target: 1 lun: 0
Linux sg driver version: 3.1.20

I've set the console.perms so I own the devices, so I know that's not
the problem. Anyone have any ideas?
-- 
Stuart Luppescu       -=- s-luppescu@example.com
University of Chicago -=- CCSR 
才文と智奈美の父    -=- Kernel 2.4.14-xfs              
"You have been in Afghanistan, I perceive."   -- Sir Arthur
 Conan Doyle, "A Study in Scarlet"

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