Walter Dnes wrote: > I have a DVD (hdc) and a CDRW (hdd) on a machine. The only defined > mount is /cdrom, which is actually the DVD. In Redhat, I simply added > append="hdc=ide-scsi hdd=ide-scsi" to lilo.conf, ran lilo and re-boot > and both of them worked as did cdrecord. This does not work in Debian > (2.4.18-bf2.4). That should be enough for Debian as well. (shrug) Works for me. > Further Googling suggested that I add a line to modules.conf. > Looking at modules.conf, I saw dire warnings against manual editing, > and that I was to use update-modles instead. According to the > manpage, I'm supposed to create a file in /etc/modutils. Change references of modules.conf to /etc/modules instead. Here are my instructions for setting up a CD-RW drive on Debian. Perhaps they will help. This sets up a very particular configuration. You will have to adapt it for your installation. Note that these instructions match a tuned modular kernel such as kernel-image-2.4.20-2-k7. The bf24 kernel should have all of the modules compiled in and should work. But I don't use that kernel myself and so can't say for sure. And I have seen problems with module conflicts being completely unresolvable when trying to compile everything into the kernel statically. Take 'autofs' and 'autofs4' as an example, you need a modular kernel to get the fixed autofs4. Besides you probably want the tuned, modular kernel anyway. So that might be your first task, to update to an appropriate modular kernel first. See the previous postings about using 'modconf' or similar method to install your network and sound drivers. Bob Setting up a CD-RW drive I am going to assume that the CD-ROM is on a master IDE device and that the CD-RW is a slave IDE device on the same cable since that is a typical configuration. In order to use the CD writer it must appear as a SCSI device. In that case you might as well treat both of the devices as SCSI for consistency. First you need the kernel to load the ide-scsi module at boot time. Put the name of that driver in /etc/modules. In /etc/modules place the following: ide-scsi Note for pure SCSI disk based systems. In an IDE based system the ide-probe-mod and ide-mod drivers will have been loaded during the initial part of the boot. But in a SCSI based system there is no need for those drivers. Unless you have an IDE CD writer in which case you will need them and they will not be automatically detected for inclusion in an initrd. Therefore you will need to add these drivers explicitly in the /etc/modules file. Thanks George Robbert for providing this information. Note that in 2.4.22 ide-probe became ide-detect. Thanks Brian Weaver for providing this information. ide-probe-mod ide-scsi The ide-scsi module can only adapt an IDE device to a SCSI if it has not already been grabbed by the normal IDE layer. Therefore the kernel must be instructed to load the ide-scsi driver for these devices at boot time such that the ide-scsi driver will be loaded first. After modifying the /etc/lilo.conf file you will need to run lilo and you will need to reboot. (Or edit grub's menu.lst and run update-grub for grub users.) In /etc/lilo.conf place the following: append="hdc=ide-scsi hdd=ide-scsi" The hdc device is your master device which I am assuming will be your CD-ROM device. The hdd device is your slave device which I am assuming will be your CD-RW device. Test your configuration using cdrecord -scanbus. It should be able to see your CD devices. cdrecord -scanbus At this point things are configured for the kernel to handle the devices correctly as SCSI devices. Now we set up the rest of the system to know about these. Typically on Linux systems the device is aliased as a symlink in /dev. Remove any previous aliases. Create new aliases for the new devices. rm -f /dev/cdrom rm -f /dev/cdrw ln -s /dev/scd0 /dev/cdrom ln -s /dev/scd1 /dev/cdrw Create mount points for these devices. These could go anywhere on your filesystem. Typically on Debian they will be mounted in / as /cdrom and /cdrw. However another common convention is to mount these under /mnt as /mnt/cdrom and /mnt/cdrw. For now I will go with the Debian default and show them in /cdrom and /cdrw. mkdir -p /cdrom /cdrw Configure those device nodes and mount points in your filesystem table so that they can be easily mounted. The configuration shown here allows any user to mount and unmount these devices as themself and root capability is not needed. In /etc/fstab place the following: /dev/cdrom /cdrom iso9660 ro,user,noauto 0 0 /dev/cdrw /cdrw iso9660 ro,user,noauto 0 0 You may be questioning the 'ro' option, read-only, in the cdrw entry in the above fstab. That is because when mounting the disk like this it looks like a cdrom and is not writable using this method. When mounting it as a filesystem it is being mounted as a cdrom device only. You can use the cdrw to read a cd using the cdrom capabilities of the device. To actually record using the cdrw you will need to use cdrecord or similar program. Many people have reported good use of the GUI xcdroast. Use the dev setting that matches what cdrecord -scanbus says. Use a speed that is supported by both drive and media. cdrecord -v -eject dev=0,1,0 speed=8 file.iso In my install for cdrecord I told it to use 'suid' so that you don't need root permission to run it. Alternatively 'sudo' can be configured for that purpose. After you get that going edit /etc/default/cdrecord and set up the default parameters there so that you won't need them on the command line each and every time. With that configuration installed a typical command line might be the following. cdrecord -v -eject file.iso
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