May 2003 - Packet Writing - openSUSE Mailing Lists

TODO
by Maciek Fijalkowski 27 Jun '03

27 Jun '03

It seems that I've got to do something around packet layer to pass my exams. I've chosen packet-writing, so: what's the most important todo? --- INTERNATIONAL JOURNAL OF UNCERTAINTY FUZZINESS AND KNOWLEDGE-BASED SYSTEMS

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compilation error with kernel 2.4.20.SuSE
by J� Fahlke 30 May '03

30 May '03

Hi! I get a compilation error ehen trying to compile the patched kernel on SuSE. I use the kernel 2.4.20.SuSE. The problem is that the SuSE patches change blk_started_io() (defined in include/linux/blkdev.h) from having one argument to two, and pktcdvd.c uses this funktion. The change is introduced by SuSEs elevator_lowlatency patch. Unfortunately, blk_started_io() is only udes in that patch and pktcdvd.c and I have no idea what it is good for, so I don't dare to mangle the code myself. Any ideas what to do to make it compile? Thanks in advance, Joe.

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Packet Writing on External USB CD-Rewriter ??
by 이성환 30 May '03

30 May '03

Hi. I'm trying to packet-writing on my external USB CD-RW. Is packet-writing possible on external USB CD-RW?? It works well with common cd-rw tools. But it does not work with packet-writing. I set up like follow. 1. kernel 2.4.18 and packet-patched. 2. Packet writing & write cache options are enabled. 3. UDF file system support & UDF write support options are enabled. 4. USB options for external CD-RW are enabled. After boot-up, when I connect my USB CD-RW, it connected at /dev/cdrom. Then I do follows. pktsetup /dev/pktcdvd0 /dev/cdrom mount /dev/pktcdvd0 /mnt/udfcd ls /mnt/udfcd It list the contents of the CD. And I can copy some files in the CD to my HDD. (with 'cp' command ) But I can't write to the CD. here is the message : kernel: pktcdvd: pktcdvd0 : WRITE error sector xxxx Hmmm.. Can I do packet-writing on external USB CD-RW ??? please hlep me. And hint will be very helpful for me. Thanks.

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Packet Writing on External USB CD-Rewriter ??
by 이성환 30 May '03

30 May '03

Hi. I'm trying to packet-writing on my external USB CD-RW. Is packet-writing possible on external USB CD-RW?? It works well with common cd-rw tools. But it does not work with packet-writing. I set up like follow. 1. kernel 2.4.18 and packet-patched. 2. Packet writing & write cache options are enabled. 3. UDF file system support & UDF write support options are enabled. 4. USB options for external CD-RW are enabled. After boot-up, when I connect my USB CD-RW, it connected at /dev/cdrom. Then I do follows. pktsetup /dev/pktcdvd0 /dev/cdrom mount /dev/pktcdvd0 /mnt/udfcd ls /mnt/udfcd It list the contents of the CD. And I can copy some files in the CD to my HDD. (with 'cp' command ) But I can't write to the CD. here is the message : kernel: pktcdvd: pktcdvd0 : WRITE error sector xxxx Hmmm.. Can I do packet-writing on external USB CD-RW ??? please hlep me. And hint will be very helpful for me. Thanks.

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Speed probing problems
by Maciek Fijalkowski 29 May '03

29 May '03

On my kernel 2.4.20 (generic) with applied 2.4.20-2 patch and attached SAMSUNG CD-R/RW SW-248F (48-24-48 speed), pktcd detects 4 speed writing. --- INTERNATIONAL JOURNAL OF UNCERTAINTY FUZZINESS AND KNOWLEDGE-BASED SYSTEMS

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Writing to CD-R
by Alexander Busby 23 May '03

23 May '03

Hi I am new to this area of development and am wondering if packet writing to CD-R (or preferably DVD-R) has yet been achieved. I am looking at creating a WORM data archiving system under Linux. Thank you for any help. Alex *********************************************DISCLAIMER********************* ************************* This message is for the intended recipient only. It may contain confidential, copyright or proprietary information. If you receive this message in error please immediately notify the sender, delete it and destroy all copies of it. You must not use or disclose any part of this message if you are not the intended recipient. We may monitor all E-Mail traffic through our networks. If you contact us by E-Mail we may store your name and address to facilitate communication. Any views expressed in this message are those of the individual sender. We take reasonable precautions to ensure our E-Mails are virus free. However we cannot accept responsibility for any virus transmitted by us and recommend that you subject any incoming E-Mail to your own virus checking procedures. **************************************************************************** ********************************

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Patch for 2.5.69?
by Nicholas Wourms 18 May '03

18 May '03

Peter, I was wondering if you might provide updates to the packet-writing patch for 2.5.69 & 2.5.69-ac. Thanks in advance! Cheers, Nicholas

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kernel BUG at ll_rw_blk.c:1041!
by roger 18 May '03

18 May '03

kernel BUG at ll_rw_blk.c:1041! invalid operand: 0000 (lists my currently loaded modules) CPU: 0 Stack: Call Trace Code: etc... I get the above titled oops after mounting (and/or trying to cp files to the mounted cdrw). both udf & pktcdvd modules are loaded. and the media (10x write) is recognized and udf spits out the usual debug info to syslog.) I believe the cdrw device is a tdk 10x/20x/40x ide or something like that. I'm using gentoo's linux-2.4.20-gaming-r3 kernel (which amazing has this patch included). Now, I've tried my (tried and true) plextor however it's connected via ieee1394 and sbp2 command times out when trying to mount the device. ie: # mount /dev/pktcdvd /mnt/cdrom2 (actually, log spits out many I/O error: dev 0b:00, sector 968068 many times...diff sector each time...and then finally some read fails and so on) ... well, i'm not too worried about this device via ieee1394.) I can get a syslog of the ieee1394 device errors without a kernel lockup. But the TDK via IDE bus does lock up when mounting. I can get the oops by manually typing it into this email client but I will probably not be able to even ssh into the box or anything except reboot. -- Roger http://www.eskimo.com/~roger/index.html

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A problem about the DVD+RW patch and packet-cd patch
by Dino 14 May '03

14 May '03

Hi! I get a problem about the packet-write with the RICOH 7400A and SONY DRU500A , I using Kernel 2.4.20 that patch with packet-2.4.20-2.patch.bz2 and dvd-packet-2.4.20.patch.bz2 from the Peter Osterlund (Thanks You!) , I can Read/Write/Mount/Umount use the DVD+RW , but when I replace DVD+RW to the Ricoh 7400A , and I using ide-scsi and sr_mod , when I Read/Write Something or Mount/Umount , there are some error occore [root@localhost root]# pktsetup /dev/pktcdvd0 /dev/scd0 pktcdvd: writer sr0 sucessfully registered [root@localhost root]#mount -t udf /dev/pktcdvd0 /mnt/cdrw/ pktcdvd: inserted media is CD-RW pktcdvd: Fixed packets, 32 blocks, Mode-2 disc pktcdvd: Max. media speed: 10 pktcdvd: speed (R/W) 15/10 pktcdvd: 547648kB available on disc UDF-fs DEBUG lowlevel.c:56:udf_get_last_session: XA disk: no, vol_desc_start=0 UDF-fs DEBUG super.c:1414:udf_read_super: Multi-session=0 UDF-fs DEBUG super.c:406:udf_vrs: Starting at sector 16 (2048 byte sectors) UDF-fs DEBUG super.c:748:udf_load_pvoldesc: recording time 1051520371/0, 2003/04/28 17:59 (121c) UDF-fs DEBUG super.c:760:udf_load_pvoldesc: volIdent[] = 'InCD' UDF-fs DEBUG super.c:767:udf_load_pvoldesc: volSetIdent[] = '3EACFB83 ' UDF-fs DEBUG super.c:958:udf_load_logicalvol: Partition (0:0) type 2 on volume 1 UDF-fs DEBUG super.c:967:udf_load_logicalvol: FileSet found in LogicalVolDesc at block=0, partition=0 UDF-fs DEBUG super.c:796:udf_load_partdesc: Searching map: (0 == 0) UDF-fs DEBUG super.c:837:udf_load_partdesc: unallocSpaceBitmap (part 0) @ 1 UDF-fs DEBUG super.c:877:udf_load_partdesc: Partition (0:0 type 1522) starts at physical 1824, block length 271712 UDF-fs DEBUG super.c:1212:udf_load_partition: Using anchor in block 256 UDF-fs DEBUG super.c:1441:udf_read_super: Lastblock=0 UDF-fs DEBUG super.c:721:udf_find_fileset: Fileset at block=0, partition=0 UDF-fs DEBUG super.c:782:udf_load_fileset: Rootdir at block=18, partition=0 UDF-fs INFO UDF 0.9.6 (2002/03/14) Mounting volume 'InCD', timestamp 2003/04/28 16:59 (11e0) ... after little time , it will show I/O error: dev 0b:00, sector 384 pktcdvd: pktcdvd0: WRITE error sector 384 pktcdvd: pktcdvd0: WRITE error sector 388 pktcdvd: pktcdvd0: WRITE error sector 392 pktcdvd: pktcdvd0: WRITE error sector 396 pktcdvd: pktcdvd0: WRITE error sector 400 pktcdvd: pktcdvd0: WRITE error sector 404 pktcdvd: pktcdvd0: WRITE error sector 408 pktcdvd: pktcdvd0: WRITE error sector 412 pktcdvd: pktcdvd0: WRITE error sector 416 pktcdvd: pktcdvd0: WRITE error sector 420 pktcdvd: pktcdvd0: WRITE error sector 424 pktcdvd: pktcdvd0: WRITE error sector 428 pktcdvd: pktcdvd0: WRITE error sector 432 pktcdvd: pktcdvd0: WRITE error sector 436 pktcdvd: pktcdvd0: WRITE error sector 440 pktcdvd: pktcdvd0: WRITE error sector 444 pktcdvd: pktcdvd0: WRITE error sector 448 pktcdvd: pktcdvd0: WRITE error sector 452 pktcdvd: pktcdvd0: WRITE error sector 456 pktcdvd: pktcdvd0: WRITE error sector 460 pktcdvd: pktcdvd0: WRITE error sector 464 pktcdvd: pktcdvd0: WRITE error sector 468 pktcdvd: pktcdvd0: WRITE error sector 472 pktcdvd: pktcdvd0: WRITE error sector 476 pktcdvd: pktcdvd0: WRITE error sector 480 pktcdvd: pktcdvd0: WRITE error sector 484 pktcdvd: pktcdvd0: WRITE error sector 488 pktcdvd: pktcdvd0: WRITE error sector 492 pktcdvd: pktcdvd0: WRITE error sector 496 pktcdvd: pktcdvd0: WRITE error sector 500 pktcdvd: pktcdvd0: WRITE error sector 504 pktcdvd: pktcdvd0: WRITE error sector 508 [root@localhost root]#umount /mnt/cdrw/ pktcdvd: read failure (61:00, sec 384) 384 not uptodate I/O error: dev 0b:00, sector 384 pktcdvd: pktcdvd0: WRITE error sector 384 pktcdvd: pktcdvd0: WRITE error sector 388 pktcdvd: pktcdvd0: WRITE error sector 392 pktcdvd: pktcdvd0: WRITE error sector 396 pktcdvd: pktcdvd0: WRITE error sector 400 pktcdvd: pktcdvd0: WRITE error sector 404 pktcdvd: pktcdvd0: WRITE error sector 408 pktcdvd: pktcdvd0: WRITE error sector 412 pktcdvd: pktcdvd0: WRITE error sector 416 pktcdvd: pktcdvd0: WRITE error sector 420 pktcdvd: pktcdvd0: WRITE error sector 424 pktcdvd: pktcdvd0: WRITE error sector 428 pktcdvd: pktcdvd0: WRITE error sector 432 pktcdvd: pktcdvd0: WRITE error sector 436 pktcdvd: pktcdvd0: WRITE error sector 440 pktcdvd: pktcdvd0: WRITE error sector 444 pktcdvd: pktcdvd0: WRITE error sector 448 pktcdvd: pktcdvd0: WRITE error sector 452 pktcdvd: pktcdvd0: WRITE error sector 456 pktcdvd: pktcdvd0: WRITE error sector 460 pktcdvd: pktcdvd0: WRITE error sector 464 pktcdvd: pktcdvd0: WRITE error sector 468 pktcdvd: pktcdvd0: WRITE error sector 472 pktcdvd: pktcdvd0: WRITE error sector 476 pktcdvd: pktcdvd0: WRITE error sector 480 pktcdvd: pktcdvd0: WRITE error sector 484 pktcdvd: pktcdvd0: WRITE error sector 488 pktcdvd: pktcdvd0: WRITE error sector 492 pktcdvd: pktcdvd0: WRITE error sector 496 pktcdvd: pktcdvd0: WRITE error sector 500 pktcdvd: pktcdvd0: WRITE error sector 504 pktcdvd: pktcdvd0: WRITE error sector 508 [root@localhost root]#pktsetup /dev/pktcdvd0 -d pktcdvd: writer sr0 unregistered Umm ... is anyone have the same problem ?? , If I don't patch kernel with the DVD+RW patch , the RICOH 7400A work fine .... Thank you very much ! Dino

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An alternative method to do packetwriting under linux....
by Erik Brakkee 04 May '03

04 May '03

Platform: SuSE 8.2, i386 DVD writer: NEC ND-1100a Hi, I recently got packetwriting to work in way which differs from the method proposed at http://packet-cd.sourceforge.net/. I found the web site http://fy.chalmers.se/~appro/linux/DVD+RW/ which is specific for DVD +R/+RW writers. To get packetwriting to work I had to do the following: 1. patch the 2.4.20 kernel (see the above web site for the patch). Compile it (with a gcc 2.95.3 compiler which I had to install) 2. blank the DVD using 'cd+rw-format' 3. Put a UDF file system on the disk using 'mkudffs' (I can also put any other file system on the disk such as ext2 using 'mke2fs'). 4. Mount the disk 5. Copy/delete files on the disk using normal unix commands. I imagine that the above approach can be generalized by simply replacing the blanking of the CD/DVD and making the UDF filesystem with the appropriate command(s). In my opinion, the approach used by the packet writing initiative is a bit more complex. I now have the following questions: 1. How do the two alternatives for packet writing relate? 2. What is the purpose of the intermediate step with 'pktsetup' to create a packet writing device? After putting a UDF file system on the disk I can use it in my case. Should I still be considering to use pktsetup? Cheers Erik -- Erik Brakkee <erik.brakkee(a)planet.nl>

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