Re: [PLUG] cd recording frustration

[Art Alexion <art.alexion@verizon.net>]

Carlos Konstanski wrote:

> In the meantime, you can try this, just as a sanity check:
>
>     - Get a knoppix CD;
>     - Boot into the 2.4 kernel on the knoppix CD (you have a choice of
>       2.4 or 2.6; 2.4 is the default);
>     - Burn that CD while running under knoppix, using the old SCSI
>       device enumeration dev=0,0,0 or whatever cdrecord -scanbus reports
>       as the SCSI node of your CDROM.
>
> If your CD turns out better, then we either have an issue with the
> kernel or with the CDROM's ability to work properly with ide_cd.
>  
This was going to be my next step.  I have the latest knoppix version 
that I was going to use on the windows machine and I was going to try it 
on this machine to see if was configuration or hardware.

> You mentioned that neither module is loaded on your system.  That means
> either they are compiled into the kernel, or they are absent.
>
> Do you have a /boot/config-<kernel-version> file?  It is likely that
> this plaintext file contains the configuration used to build your
> kernel.  You can open it with less and look for the following:
>
>     CONFIG_BLK_DEV_IDEDISK=y
>     CONFIG_SCSI=m
>     CONFIG_SCSI_PROC_FS=y
>     CONFIG_BLK_DEV_IDECD=m
>     CONFIG_BLK_DEV_IDESCSI=m
>     CONFIG_ISO9660_FS=y
>     CONFIG_JOLIET=y
>
> "y" means it's compiled into the kernel image; "m" means it's a kernel
> module.  If you have both CONFIG_BLK_DEV_IDECD and
> CONFIG_BLK_DEV_IDESCSI set to "m", you can then convert your CDROM
> between IDE and SCSI mode at runtime for the sake of experimentation by
> rmmod'ing one module and modprobe'ing the other.  That is one reason to
> compile these as modules.  Another reason is so you can easily tell
> which one you have running with lsmod.
>  
Here is what I have:

   #
   # ATA/ATAPI/MFM/RLL support
   #
   CONFIG_IDE=m
   CONFIG_BLK_DEV_IDE=m

   #
   # Please see Documentation/ide.txt for help/info on IDE drives
   #
   # CONFIG_BLK_DEV_IDE_SATA is not set
   CONFIG_BLK_DEV_IDEDISK=m
   # CONFIG_IDEDISK_MULTI_MODE is not set
   CONFIG_BLK_DEV_IDECS=m
   CONFIG_BLK_DEV_IDECD=m
   CONFIG_BLK_DEV_IDETAPE=m
   CONFIG_BLK_DEV_IDEFLOPPY=m
   CONFIG_BLK_DEV_IDESCSI=m
   # CONFIG_IDE_TASK_IOCTL is not set
   CONFIG_IDE_TASKFILE_IO=y

   #
   # IDE chipset support/bugfixes
   #
   CONFIG_IDE_GENERIC=m
   CONFIG_BLK_DEV_CMD640=y
   # CONFIG_BLK_DEV_CMD640_ENHANCED is not set
   CONFIG_BLK_DEV_IDEPNP=m
   CONFIG_BLK_DEV_IDEPCI=y
   CONFIG_IDEPCI_SHARE_IRQ=y
   # CONFIG_BLK_DEV_OFFBOARD is not set
   CONFIG_BLK_DEV_GENERIC=m
   CONFIG_BLK_DEV_OPTI621=m

   ...

   #
   # SCSI device support
   #
   CONFIG_SCSI=m
   CONFIG_SCSI_PROC_FS=y
   # SCSI support type (disk, tape, CD-ROM)
   #
   CONFIG_BLK_DEV_SD=m
   CONFIG_CHR_DEV_ST=m
   CONFIG_CHR_DEV_OSST=m
   CONFIG_BLK_DEV_SR=m
   # CONFIG_BLK_DEV_SR_VENDOR is not set
   CONFIG_CHR_DEV_SG=m
   CONFIG_CHR_DEV_SCH=m

   #
   # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
   #
   CONFIG_SCSI_MULTI_LUN=y
   CONFIG_SCSI_CONSTANTS=y
   CONFIG_SCSI_LOGGING=y

   #
   # SCSI Transport Attributes
   #
   CONFIG_SCSI_SPI_ATTRS=m
   CONFIG_SCSI_FC_ATTRS=m

   ...



> As usual, I digress.  I'd see if you can burn a CD with a 2.4 kernel
> under knoppix with SCSI emulation, and go from there.  
>  
Looks like I did it with Bill Jonas' media format conversion script.  
Still warnings, but the result was fine.


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