Did you see the mail I sent you yesterday? Essentially I have configured my own Cdwriter to play audio discs. You have to make a symlink berween /dev/cdrom and /dev/scd0 That is if devfs is disabled. If devfs is enabled then you will not have a /dev/scd0. Instead you will have a /dev/scsi directory and at the end of the chain of directories will be a device. You have to symlink between there and /dev/cdrom (I cannot tell you the exact name because I have devfs disabled and I do not remember what it is called)
The reason I have devfs disabled is because my cd writer will not record with it enabled. You can test if you also have a problem by typing as root cdrecord -scanbus If it finds your CD writer you are ok. If not you need to disable devfs by editing /etc/lilo.conf and changing "devfs=mount" to "devfs=nomount" then run lilo with /sbin/lilo and reboot. Then look at the changes in the /dev directory/ Derek On Sunday 25 November 2001 05:00, Steve Weltman wrote: > Hi Again Derrek, > > I accidently clipped the error message that kscd gave me... > <Error Message> CDROM read or access error (or no audio disc in the drive). > Please make sure you have access permissions to /dev/cdrom. > > I KNOW that I have permissions to the device (/dev/scd0) but there is NO > device hdb so I don't have any way to add permissions to it or create > another device (I haven't done this yet). > > I tried adding the line you suggested below and it said that it links to > nowhere (probably because the /dev/ directory doesn't create any hdb link > in it or a reference to a device called hdb...I need to make this somehow). > > CDROM is pointed as such... cdrom -> ../cdroms/cdrom0 > > Thanks again...I am adding another CDROM reader (new 58x one was cheap so I > splurged). > I'll let you know what it says in hard drake... > Steve Weltman > > On Saturday 24 November 2001 03:45 am, Derek Jennings wrote: > > On Saturday 24 November 2001 10:55, you wrote: > > > Greetings again Derek, > > > > > > Okay...first the obvious. The cable to the sound card is correct. It > > > works in Windoz. The drive that is connected is not a SCSI device, but > > > is claimed to be so by Linux because it is a CDRW (that's my guess as > > > why), > > > > It is a SCSI device because the cdwriting backend used by all the cd > > burner applications only works with SCSI devices. Rather than rewrite it > > for IDE (the author says there are good technical reasons why this should > > not be done), the system instead has to emulate SCSI on an IDE device, > > hence it comes up as SCSI in fstab > > > > > but it is the master on the cable (by jumper on the device). Kscd does > > > fail every time (even as root) saying that there is > > > > saying that there is what? > > > > > Okay, now for the not-so-obvious stuff...I just ran Hard Drake and it > > > is ALSO known as hdb (Well,well now...)... So that's the ide interface > > > side of the drive. > > > > > > Now the hard part, it being known as hdb does me very little good if > > > the drive is reachable by scd0 already (for data that is), > > > > Don't touch scd0 or fstab. All the configuration is done as links in the > > /dev directory. > > > > > > because I don't know > > > > > where to put hdb into the system as a drive that can be used. It isn't > > > already present in /etc/ as hdb, so I need to know how to add this and > > > then I can make a sym link to it (and create a way for the apps to > > > access it). > > > > Well thats the next point I made. If the drive is physically /dev/hdb > > then there needs to be that symlink from /dev/cdrom to /dev/hdb > > ln -s /dev/hdb /dev/cdrom > > > > Does the link /dev/cdrom already exist? and if so where is it pointing? > > > > Derek > > > > > Ideas? > > > Thanks on the tip...I wouldn't have looked for an IDE interface as a > > > source of trouble. > > > > > > Steve Weltman > > > > > > On Saturday 24 November 2001 01:31 am, Derek Jennings wrote: > > > > Steve > > > > Most of us have no trouble playing music CD's, so we must try to > > > > identify what is different about your installation to the rest of us. > > > > > > > > First of all be assured that music CD's DO NOT have to be mounted at > > > > all. They do not contain a 'file system' as such. So any attempt to > > > > mount them is futile. Nor do the contents of fstab matter. Fstab is > > > > about mounting, and audio CD's are not mounted. > > > > > > > > Second, it may seem a stupid thing to ask, but is there an audio > > > > cable from your CD drive to your sound card? It is possible for > > > > audio CD's to work in windows without that audio cable because from > > > > Windows ME onwards windows uses the digital interface to play audio > > > > CD's. The kscd player in Linux however requires an Analogue cable to > > > > the sound card. I don't remember from previous posts, but does kscd > > > > actually fail with an error message, or does it look as if the CD is > > > > playing? If there is no error message, then kscd thinks it has found > > > > the drive, and an audio cable/mixer problem is likely. If there is an > > > > error message then see the next paragraph. > > > > > > > > Third where is the symlink /dev/cdrom pointing? > > > > To find out just look at the /dev directory with konqueror at the > > > > extreme right is the 'Link' column. In my last mail I said to point > > > > this to /dev/scd0, but bearing in mind this is a SCSI interface it > > > > might be better to point it directly at the IDE port. > > > > So for a master device on the first IDE channel this should point to > > > > /dev/hda For a secondary device on the first IDE channel it should be > > > > /dev/hdb For a master device on the second IDE channel it should be > > > > /dev/hdc For a secondary device on the second IDE channel it should > > > > be /dev/hdd > > > > > > > > Finally, (clutching at straws) Are the jumpers on the back of the cd > > > > drive set correctly? The drive should be identified as a master or > > > > slave device. It should not be configured for cable select. > > > > (I only mention this because a journalist from The Rgister was unable > > > > to install Redhat when his drive was configured for cable select) > > > > > > > > HTH > > > > Derek > > > > > > _________________________________________________________ > > > Do You Yahoo!? > > > Get your free @yahoo.com address at http://mail.yahoo.com > > _________________________________________________________ > Do You Yahoo!? > Get your free @yahoo.com address at http://mail.yahoo.com
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