Red Hat Bugzilla – Bug 48941
Last modified: 2007-04-18 12:34:42 EDT
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User-Agent: Mozilla/4.77 [en] (X11; U; Linux 2.4.2-2smp i686)
Description of problem:
repeatable. CD drive works without problems otherwise.
can't run cdrecord
can't run cdrecord -scanbus successfully, cdrecord reports "no such file or
directory..." see below steps to reproduce
Steps to Reproduce:
[root@scotch /root]# rmmod ide-scsi
[root@scotch /root]# insmod ide-scsi
[root@scotch /root]# cdrecord -scanbus
Cdrecord 1.9 (i686-pc-linux-gnu) Copyright (C) 1995-2000 Jvrg Schilling
cdrecord: No such file or directory. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are
[root@scotch /root]# uname -a
Linux scotch 2.4.2-2smp #1 SMP Sun Apr 8 20:21:34 EDT 2001 i686 unknown
Actual Results: see above
Expected Results: the scanbus out as normal
I did some checking. The above occurs when running X.
In a console window, the cdrom and ide-cd modules are not already loaded and they can easily loaded and all required modules for cdrecord load
correctly (except for some that don't seem to exist anymore) and cdrecord -scanbus reports the correct data about the cd writer. However, I can't seem
to be able to load the required modules when in an X window. When in X it seems that the cdrom and ide-cd modules are preloaded, the rest of the
modules needed for cdrecord don't load without errors.
Work-around: kill the x-server before using the cdrecord.
If ide-cd is loaded, cdrecord doesn't see the drive. cd-ide seems to get loaded when x is started. Once its there it doesn't unload correctly or seem to.
I now loaded the scsi modules as part of rc5.d and rc3.d:
once loaded x can (and will) startup correctly. the drive must then (of course) be accesses as /dec/scd0
Correct. This isn't really a bug, just a misconfiguration. In order
to do CD burning in Linux with IDE/ATAPI CD burner drives, you must
configure your CD burner to use the ide-scsi kernel module. The
drive is then accessed like a SCSI device.