> -----Original Message----- > From: Robert P. J. Day [mailto:rpjday@xxxxxxxxxxxxxx] > Sent: Fri, July 18, 2003 12:10 AM > To: shrike-list@xxxxxxxxxx > Subject: Re: using CD/RW devices without SCSI emulation in > 2.6 kernel?? > > > On Wed, 16 Jul 2003, Jesse Keating wrote: > > > On Wednesday 16 July 2003 15:48, Robert P. J. Day wrote: > > > according to joe pranevich's article on the 2.6 kernel, the new > > > IDE driver in 2.6 allows one to write CD/RWs without using the > > > historical SCSI emulation. has anyone tried that? and how does > > > one use cdrecord like this, since cdrecord seems to require a > > > SCSI device. > > > > > > hints? > > > > You can currently do this w/ RHL9. > > > > cdrecord dev=ATAPI:0,1,0 > > > > This assumes that the CDRW is the primary slave. Secondary > master would > > be 1,0,0 and secondary slave would be 1,1,0. > > i wanted to test this under 2.6.0-test1 to see if there was a > noticeable > performance hit, but i can't seem to get it to work. (i've exchanged > some offline email with jesse, but it's still a puzzler so i'll throw > it open to the masses.) > > on my laptop, the CD-RW is clearly the slave on the first IDE > controller, > given that it's referenced by /dev/hdb. i booted, removing the > "hdb=ide_scsi" boot parameter and, based on jesse's explanation, > i should be able to burn a CD with: > > # cdrecord -v dev=ATAPI:0,1,0 knoppix.iso > > what i get instead is the output: > > ----------------------------------------------------------- > > Script started on Thu 17 Jul 2003 04:59:52 PM EDT > > [root@xxxxxxxxx KNOPPIX]# cdrecord -v -dummy dev=ATAPI:0,1,0 > knoppix3.2.iso > > Cdrecord 2.0 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jörg > Schilling > TOC Type: 1 = CD-ROM > scsidev: 'ATAPI:0,1,0' > devname: 'ATAPI' > scsibus: 0 target: 1 lun: 0 > Warning: Using ATA Packet interface. > Warning: The related libscg interface code is in pre alpha. > Warning: There may be fatal problems. > Using libscg version 'schily-0.7' > atapi: 1 > Device type : Disk > Version : 0 > Response Format: 0 > Vendor_info : 'ADAPTEC ' > Identifikation : 'ACB-5500 ' > Revision : 'FAKE' > Device seems to be: Adaptec 5500. > cdrecord: Sorry, no CD/DVD-Drive found on this target. > [root@xxxxxxxxx KNOPPIX]# exit > exit I got the same problem. Both my DVD and CD-RW drives are identified as ADAPTEC ACB 5500 when SCSI emulation is not enabled. > > Script done on Thu 17 Jul 2003 05:00:40 PM EDT > > ------------------------------------------------------- > > in addition to the above, i get stderr messages stating that the > block major device numbers 22, 33 and 34 could not be found, which > according to the kernel docs, refer to the second, third and fourth > IDE controllers. it's not clear why cdrecord is scanning for > additional IDE controllers but, in any case, cdrecord is obviously > not seeing the CD-RW properly. > > i'm open to suggestions. i've verified that the ide_scsi module > is not loaded. is there a kernel parameter i should have built in > to support the ATAPI: notation here? > > puzzled. > > rday > > > -- > Shrike-list mailing list > Shrike-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/shrike-list > -- Shrike-list mailing list Shrike-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/shrike-list
