On Mon, 2007-12-31 at 12:16 -0500, Robert Moskowitz wrote:
William L. Maltby wrote:
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Over with DSL, I learned that they DON'T use the form: dev=/dev/scd0, but rather something like dev=0,0,1 where the 0,0,1 was learned via cdrecord -scanbus. So I have been doing the -scanbus and using things like dev=5,0,0 and I know that I am hitting the CDRW.
*Just* as an FYI, on my 5.1 the -scanbus showed what seemed invalid results (-2, -2, -2), but other commands (like cdrecord -prcap ...) showed bus 0,0,0. But I couldn't access the IDE drive with it. In days of yore (not your or you're! ;-) I always had used the -scanbus results successfully. I do know that things changed over time, with some improvements in the kernel, and there was a time where I could use both that and the /dev/hdc type of references.
Currently, on my 5.1 IDE, what works is dev=/dev/cdrom or /dev/dvd, etc. Also, an insmod of sr_mod shows a use count of 0 (->> the same as yours), indicating that this is apparently not needed anymore.
So, I suggest trying
cdrecord -prcap dev=/dev/<yours> # <yours> = sd? or cdrom or dvd
Because I have not kept up with all the changes over the years, I can't say what promise this holds, but it *does* work on my 5.1 IDE DVD-+R/W.
As to the GUIs, I *believe* they normally use the symlinks so that they are not subjected to confusion based on local hardware configurations/device names.
Interestingly, the first number of the triplet seems to increment every time I unplug and plug back in the CDRW.
A disconnect does not immediately unload the modules and their memory IIRC. Then a connect would/could engender a new bus detection? Just guessing.
I went through each post in the archives in the thread and, using Firefox's search feature, didn't see a post where you showed a "dev=" being used with cdrecord. Maybe it's worth a try. Putting a written disc in the ide one should provoke an automount. Then a mount command would show what device is mounted. Then an ls would show which symlinks are pointing to that device. Then you could try cdrecord with a different one to make sure the correct one is accessed.
definitely using dev= And like I pointed out, with the Storix adding -force speed=4 and it does burn the CD. But the HP drive not. I am thinking next I try a speed=2 with the HP, as I recall it is a 6x writer.
The -prcap will show a table of allowed write speeds, if the device (p)rom contains them. FI mine has 31, 15 for cdrom and 4x, 2x for DVD. It also shows a table of permitted read speeds. I suspect that speeds not matching those tables would default to one of the allowed values.
Presuming that you tried all the things people mentioned in the other thread, the only course I see now is to make sure that the "configuration" on this box matches what is on the others as closely as possible. What modules loaded, /etc/cdrecord.conf, symlinks (allowing for multiple devices or not multiples), GUI config set up correctly (which device), ...
The scsi stack needed hasn't changed much in the last few years, as has not the devices used, config files used, ... The major variables I (guess I?) see are multiple devices (opportunity for confusion), USB 1.2 (?), configuration files and related, hardware status (good vs. failed)...
Have you, using the same cable and usb port, tried another device?
I have LOTS of cables and use the indiscriminately. I am not careful which USB port I use, and I have done this on a few different computers loaded with Centos 5. I only have the 2 devices, so I am limited there. The Storix is a 'newer' device than the HP, as it is a DVD/CDRW and the HP is only a CDRW.
A reading of Schilly's docs and man page might suggest something we have overlooked.
Schilly's doc?
Joerg(?) Schilling, the author of cdrtools. I always forget that "shily*" references to domains, libraries, etc. is not really part of his name.
See /usr/share/doc/cdrecord-2.01 for a lot of good info, as well as his usual rants about the sorry state of scsi in Linux.
I got tired of trying to read the man page, so found a version of it online: http://man-wiki.net/index.php/1:cdrecord and so far have not found anything else to try.
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