Switching from CD-RW to CD without kernel reboot
Burn Alting
burn at goldweb.com.au
Sat Nov 30 12:38:04 EST 2002
On Sat, 30 Nov 2002 12:24, Sam Couter wrote:
> Burn Alting <burn at goldweb.com.au> wrote:
> > What I want to do is to burn CD-RW's for backup or just read off the CD.
> > Is there a simple way to configure the kernel to be able to switch
> > between burning cd's (cdrecord etc) and just reading CD's WITHOUT having
> > to reboot the kernel (at present I boot a kernel - lilo.conf/grub.conf
> > with a parameter "hdc=ide-scsi" if I want to burn CD's or with this if I
> > just want to mount a CD)
>
> The option you mentioned here tells the kernel to pretend that the
> secondary master ATA device is really a SCSI device.
>
> So just mount the CD drive as if it were really a SCSI CDROM:
> mount -t iso9660 /dev/sda /mnt/cdrom
>
> [or /dev/scsi/host0/bus0/target0/lun0/cd if you're using devfs, or
> wherever else the pretend SCSI device appears on your system]
Thanks Sam, but unfortunately, mount requests come back with the devices not
being a valid block device ie
# mount -t iso9660 -o ro /dev/scd0 /mnt/cdrom
mount: /dev/scd0 is not a valid block device
#
The relevent modules, I believe are loaded ...
# lsmod
...
ide-scsi 7744 0
ide-cd 27392 0
cdrom 27712 0 [ide-cd]
vfat 9500 1 (autoclean)
fat 30136 0 (autoclean) [vfat]
usb-uhci 21476 0 (unused)
usbcore 63232 1 [usb-uhci]
rtc 6076 0 (autoclean)
#
So I may have to scan the howtos again :-(
Thanks
Burn
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