March 2004 - Packet Writing - openSUSE Mailing Lists

Linux-2.6.0
by Richard A Downing FBCS 30 Dec '04

30 Dec '04

I was about to update my kernel to the new stable 2.6.0, but notice Jens has added some changes since test11. Is there any reason to suppost the test11 patch wouldn't work? I guess this is just a way of saying 'Can we have a 2.6.0 patch please Peter?' -- Richard A Downing FBCS http://www.freewebs.com/109bean/ Anyone sending unwanted advertising e-mail to this address will be charged $25 for network traffic and computing time. By extracting my address from this message or its header, you agree to these terms.

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CDMRW with PHILIPS CDRWDVD3210
by Hans-Helmut Bühmann 08 Apr '04

08 Apr '04

Hello! I tried to run "cdmrw -f full -d /dev/hdc" on a PHILIPS CDRWDVD3210 writer. It gives the following message: cdmrw: /dev/hdc is not a mrw drive or mrw reader Has someone (positive) experience with this drive? Linux-Kernel is 2.6.4. Are special options necessary? The drive works for burning CDs. I upgraded the firmware, it should support "easy-write", which is the same as mt-rainier?! Thanks! H-HB

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lots of syslog error messages when writing to UDF DVDs
by Doug Holland 31 Mar '04

31 Mar '04

I'm running on an 650MHz Athlon, and the CD-RW drive in question is a generically rebranded Lite-On Combo LTC-48161H (16x DVD/48x read/48x CD-R/24x CD-RW combo drive.) I just compiled kernel 2.6.0, with the packet-writing patch (packet-2.6.1-rc1-2.patch.bz2) on a Debian unstable system. I followed the instructions in the hint file (http://cvs.linuxfromscratch.org/index.cgi/hints/Attic/cdrw-hint.txt?rev=1.3) to get it working, and it's working to an extent. The problem is that when I copy medium-large sized files (a few megabytes, such as an mp3,) the drive just keeps running & running, with the LED lit in amber (meaning it's writing). Running sync to get the drive to finish the job doesn't seem to do anything, and if I umount and remount the CD-RW, some of the files I tried to copy to it are missing. When I run dmesg, I get thousands of these error messages. ide-cd: write_intr decode_status bad hdc: command error: status=0x51 { DriveReady SeekComplete Error } hdc: command error: error=0x54 end_request: I/O error, dev hdc, sector 5736 ide-cd: write_intr decode_status bad hdc: command error: status=0x51 { DriveReady SeekComplete Error } hdc: command error: error=0x54 end_request: I/O error, dev hdc, sector 5744 ide-cd: write_intr decode_status bad hdc: command error: status=0x51 { DriveReady SeekComplete Error } hdc: command error: error=0x54 as well as UDF-fs DEBUG fs/udf/super.c:1005:udf_load_partdesc: Partition (0:0 type 1522) starts at physical 1408, block length 273920 UDF-fs DEBUG fs/udf/super.c:1338:udf_load_partition: Using anchor in block 256 UDF-fs DEBUG fs/udf/super.c:1571:udf_fill_super: Lastblock=0 UDF-fs DEBUG fs/udf/super.c:847:udf_find_fileset: Fileset at block=32, partition=0 UDF-fs DEBUG fs/udf/super.c:909:udf_load_fileset: Rootdir at block=64, partition=0 UDF-fs INFO UDF 0.9.7 (2002/11/15) Mounting volume 'LinuxUDF', timestamp 2004/01/13 02:33 (1e5c) UDF-fs DEBUG fs/udf/misc.c:286:udf_read_tagged: location mismatch block 4751, tag 0 != 3343 udf: udf_read_inode(ino 4751) failed !bh UDF-fs DEBUG fs/udf/misc.c:286:udf_read_tagged: location mismatch block 4751, tag 0 != 3343 udf: udf_read_inode(ino 4751) failed !bh UDF-fs DEBUG fs/udf/misc.c:286:udf_read_tagged: location mismatch block 4751, tag 0 != 3343 and Buffer I/O error on device pktcdvd0, logical block 31194 lost page write due to I/O error on pktcdvd0 Buffer I/O error on device pktcdvd0, logical block 31195 lost page write due to I/O error on pktcdvd0 Buffer I/O error on device pktcdvd0, logical block 31196 lost page write due to I/O error on pktcdvd0 Buffer I/O error on device pktcdvd0, logical block 31197 lost page write due to I/O error on pktcdvd0 Buffer I/O error on device pktcdvd0, logical block 31198 lost page write due to I/O error on pktcdvd0 Does anybody here have any ideas on how to get rid of these errors? Doug

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DVD Multisession
by mailinglist＠moviez-at-germany.de 30 Mar '04

30 Mar '04

Hi. I want to write a multisession dvd. The problem is, that I can only write a singlesession. I tried: growisofs -M /dev/sr0=IMAGE_FILE Only the -Z command works Does anyone knows that problem or can solve it ? Thanks. Felix

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Re: Problem with DVD+RW, Oops with 2.6.3
by Peter Osterlund 29 Mar '04

29 Mar '04

On Wed, 3 Mar 2004, Daniel Dorau wrote: > Hello, > I hopy you can give me an advice on how to use packet writing with > DVD+RWs. I patched my 2.6.3 for packet writing using a Benq DW800A > connected via USB and writing to CDRWs seems to work. If I try to setup > a DVD+RW with cdrwtool -d /dev/cdrom -q, however, I get the following error: > > 1216KB internal buffer > setting write speed to 12x > Settings for /dev/cdrom: > Fixed packets, size 32 > Mode-2 disc > > I'm going to do a quick setup of /dev/cdrom. The disc is going to be > blanked and formatted with one big track. All data on the device will be > lost!! Press CTRL-C to cancel now. > ENTER to continue. > > Initiating quick disc blank > wait_cmd: Input/output error > Command failed: a1 01 00 00 00 00 00 00 00 00 00 00 - sense 05.30.00 > blank disc: Illegal seek > > Any idea what's going wrong? I think you would need to port these patches to 2.6 to make it work: http://w1.894.telia.com/~u89404340/patches/packet/2.4/extra/2.4.23/ > As a side effect, I found the packet driver realibly oopsing when trying > cdrwtool -d /dev/cdrom -g > > kernel: klogd 1.4.1#10, log source = /proc/kmsg started. > kernel: Inspecting /boot/System.map-2.6.3 > kernel: Loaded 32936 symbols from /boot/System.map-2.6.3. > kernel: Symbols match kernel version 2.6.3. > kernel: No module symbols loaded - kernel modules not enabled. > kernel: ------------[ cut here ]------------ > kernel: kernel BUG at drivers/block/pktcdvd.c:94! I think this bug is fixed by the 2.6.4-rc2 patch: http://w1.894.telia.com/~u89404340/patches/packet/2.6/packet-2.6.4-rc2.patc… -- Peter Osterlund - petero2(a)telia.com http://w1.894.telia.com/~u89404340

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Re: cdmrw: failed to retrieve media status
by Frédéric L. W. Meunier 27 Mar '04

27 Mar '04

Same thing with 2.4.25 + http://w1.894.telia.com/~u89404340/patches/packet/2.4/packet-2.4.23.patch.b… + http://w1.894.telia.com/~u89404340/patches/packet/2.4/extra/2.4.23/p00002_c… # cdmrw -d /dev/hdc -f full ioctl: Input/output error cdb: 51 00 00 00 00 00 00 00 24 00 00 00 buffer (36): e0 f4 ff bf f4 ae 00 40 8c 38 01 40 00 00 00 00 00 00 00 40 00 00 00 0a 00 28 09 04 01 00 00 00 46 00 00 28 sense: 00.00.00 read disc info failed cdmrw: failed to retrieve media status With 2.4.26-pre6 I also added http://w1.894.telia.com/~u89404340/patches/packet/2.4/extra/2.4.23/p00003_d… + http://w1.894.telia.com/~u89404340/patches/packet/2.4/extra/2.4.23/p00004_d… (just in case I buy a DVD writer) + the change from http://lists.suse.com/archives/packet-writing/2004-Mar/0034.html + the patch from http://lists.suse.com/archives/packet-writing/2004-Mar/0041.html OK, I thought the "cdrom_transfer_packet_command:" messages were from Mount Rainier, but they're in fact from the last patch. Anyway, anybody using Mount Rainier under 2.4.25 or 2.4.26-preX with the above patches ? Maybe I need -F to cdmrw ? But why does it work under 2.6 without it (besides the other problems I reported). Maybe it doesn't work if I also apply the packet patch ? I'll test it next week. sense: 00.00.00 read disc info failed cdmrw: failed to retrieve media status only appear under 2.4, but I'm worried about the ioctl: Input/output error that also appeared under 2.6.5-rc2. I did a test on Windows using InCD just to make sure my drive isn't damaged, and it seemed to work fine and much faster, but maybe the last part was just my impression since I only copied around 100Mb. Anyway, the 24x medias don't sound that good or my writer isn't very fast at reading Mount Rainier CDs, because Nero CD-DVD Speed reported an average os less than 10x for all them, while the 12x I was using with packet on the old drive have at least the double. Another thing to test. -- http://www.pervalidus.net/contact.html

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Re: cdmrw: failed to retrieve media status
by Frédéric L. W. Meunier 26 Mar '04

26 Mar '04

On Fri, 26 Mar 2004, Frédéric L. W. Meunier wrote: > Another problem. When I first mounted the media mount > returned: > mount: block device /dev/hdc is write-protected, mounting > read-only > and in the logs there was a > cdrom: failed setting lba address space > Then I umounted and mounted, and it worked. Now it wasn't fun. I used umount. When I came back the drive was spinning, slowing down, spinning, the light always on, and it never returned to the shell prompt. root 3165 0.0 0.0 0 0 ? DW< 02:43 0:00 [pdflush] root 3431 0.0 0.0 1652 468 pts/0 D 02:52 0:00 umount /mnt/udf Another umount attempt returned that it wasn't mounted. I couldn't eject it. SysRq was my friend. -- http://www.pervalidus.net/contact.html

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Re: cdmrw: failed to retrieve media status
by Frédéric L. W. Meunier 26 Mar '04

26 Mar '04

What I'm replying to also didn't make into the list. With another 24x media brand (Prodisc Arita) I only got: not a mrw formatted disc LBA space: DMA No "new media" and "bgformat complete!", but like the other (Ritek), the light stopped after ~6 minutes, so I assumed it completed and I ran mkudffs --media-type=cdrw /dev/hdc. I also noticed that, unlike the other, which only terminated the cdmrw process after "bgformat complete!" appeared, it did in seconds and the format went in the background (just lacking to report when it completed). But it also took a long time (~10 minutes less) to put this: /dev/hdc 512960 506392 6568 99% /mnt/udf Maybe the new drive with only 2Mb of buffer versus the old GCE-8320B which had 8Mb makes that difference ? packet-writing really seemed much faster, and I was using 12x media (the drive only supported 10x). And now I just formatted another media of the same brand I first tested, and it acted like the above, so I have no idea why ioctl: Input/output error cdb: 00 00 00 00 00 00 00 00 00 00 00 00 buffer (0): sense: 02.04.04 appeared. On Thu, 25 Mar 2004, Frédéric L. W. Meunier wrote: > On Thu, 25 Mar 2004, Frédéric L. W. Meunier wrote: > > It seems to work with 2.6.5-rc2, even though I get the > following: > > not a mrw formatted disc > LBA space: DMA > new media > ioctl: Input/output error > cdb: 00 00 00 00 00 00 00 00 00 00 00 00 > buffer (0): > sense: 02.04.04 > progress: no progress indicator > ioctl: Input/output error > cdb: 00 00 00 00 00 00 00 00 00 00 00 00 > buffer (0): > sense: 02.04.04 > progress: no progress indicator > ioctl: Input/output error > cdb: 00 00 00 00 00 00 00 00 00 00 00 00 > buffer (0): > sense: 02.04.04 > progress: no progress indicator > ioctl: Input/output error > cdb: 00 00 00 00 00 00 00 00 00 00 00 00 > buffer (0): > sense: 02.04.04 > progress: no progress indicator > ioctl: Input/output error > cdb: 00 00 00 00 00 00 00 00 00 00 00 00 > buffer (0): > sense: 02.04.04 > progress: no progress indicator > new media > progress: no progress indicator > > The above repeated until the format is complete > > bgformat complete! > > mkudffs --media-type=cdrw /dev/hdc worked fine. > > The only problem is that it took an awful amount of time (more > than an hour) to copy everything to a 24x CD and umount it > > /dev/hdc 512960 447958 65002 88% /mnt/udf > > Why is it so much slower than packet-writing ? > > And what's wrong with it under 2.4 ? -- http://www.pervalidus.net/contact.html

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cdmrw: failed to retrieve media status
by Frédéric L. W. Meunier 25 Mar '04

25 Mar '04

I just bought an LG GCE-8525B which supports Mount Rainier. I'm running 2.4.26-pre6 with the following patches applied: http://w1.894.telia.com/~u89404340/patches/packet/2.4/packet-2.4.23.patch.b… All from http://w1.894.telia.com/~u89404340/patches/packet/2.4/extra/2.4.23/ (yes, I don't need them yet) The change from http://lists.suse.com/archives/packet-writing/2004-Mar/0034.html The patch from http://lists.suse.com/archives/packet-writing/2004-Mar/0041.html # modprobe -a ide-cd udf Mar 25 16:12:01 pervalidus kernel: hdc: attached ide-cdrom driver. Mar 25 16:12:01 pervalidus kernel: cdrom_transfer_packet_command: 5a 00 2a 00 00 00 00 00 18 00 00 00 Mar 25 16:12:01 pervalidus kernel: cdrom_transfer_packet_command: 46 00 00 28 00 00 00 00 10 00 00 00 Mar 25 16:12:01 pervalidus kernel: cdrom_transfer_packet_command: 5a 00 03 00 00 00 00 00 10 00 00 00 Mar 25 16:12:01 pervalidus kernel: hdc: ATAPI 52X CD-ROM CD-R/RW CD-MRW drive,2048kB Cache, UDMA(33) Mar 25 16:12:01 pervalidus kernel: Uniform CD-ROM driver Revision: 3.20 Mar 25 16:12:01 pervalidus kernel: cdrom_transfer_packet_command: 00 00 00 00 00 00 00 00 00 00 00 00 Mar 25 16:12:01 pervalidus kernel: cdrom_transfer_packet_command: 03 00 00 00 12 00 00 00 00 00 00 00 Mar 25 16:12:01 pervalidus kernel: cdrom_transfer_packet_command: 43 02 00 00 00 00 00 00 04 00 00 00 Mar 25 16:12:01 pervalidus kernel: cdrom_transfer_packet_command: 03 00 00 00 12 00 00 00 00 00 00 00 Mar 25 16:12:01 pervalidus kernel: udf: registering filesystem Then I compiled cdmrw.c against the latest 2.6 cdrom.h header (I get the same against the 2.4), and ran it: # cdmrw -d /dev/hdc -f full -p ioctl: Input/output error cdb: 51 00 00 00 00 00 00 00 24 00 00 00 buffer (36): d0 f4 ff bf f4 ae 00 40 8c 38 01 40 00 00 00 00 00 00 00 40 00 00 00 0a 00 28 08 04 01 00 00 00 46 00 00 28 sense: 00.00.00 read disc info failed cdmrw: failed to retrieve media status /var/log/kernel: Mar 25 16:29:26 pervalidus kernel: cdrom_transfer_packet_command: 00 00 00 00 00 00 00 00 00 00 00 00 Mar 25 16:29:26 pervalidus kernel: cdrom_transfer_packet_command: 00 00 00 00 00 00 00 00 00 00 00 00 Mar 25 16:29:26 pervalidus kernel: cdrom_transfer_packet_command: 43 02 00 00 00 00 00 00 04 00 00 00 Mar 25 16:29:26 pervalidus kernel: cdrom_transfer_packet_command: 03 00 00 00 12 00 00 00 00 00 00 00 Mar 25 16:29:26 pervalidus kernel: cdrom_transfer_packet_command: 46 00 00 28 00 00 00 00 10 00 00 00 Mar 25 16:29:26 pervalidus kernel: cdrom_transfer_packet_command: 51 00 00 00 00 00 00 00 24 00 00 00 Mar 25 16:29:26 pervalidus kernel: cdrom_transfer_packet_command: 1e 00 00 00 00 00 00 00 00 00 00 00 # cdmrw -d /dev/hdc -f full ioctl: Input/output error cdb: 51 00 00 00 00 00 00 00 24 00 00 00 buffer (36): d0 f4 ff bf f4 ae 00 40 8c 38 01 40 00 00 00 00 00 00 00 40 00 00 00 0a 00 28 08 04 01 00 00 00 46 00 00 28 sense: 00.00.00 read disc info failed cdmrw: failed to retrieve media status /var/log/kernel: Mar 25 16:29:35 pervalidus kernel: cdrom_transfer_packet_command: 00 00 00 00 00 00 00 00 00 00 00 00 Mar 25 16:29:35 pervalidus kernel: cdrom_transfer_packet_command: 46 00 00 28 00 00 00 00 10 00 00 00 Mar 25 16:29:35 pervalidus kernel: cdrom_transfer_packet_command: 51 00 00 00 00 00 00 00 24 00 00 00 Mar 25 16:29:35 pervalidus kernel: cdrom_transfer_packet_command: 1e 00 00 00 00 00 00 00 00 00 00 00 I also get lots of "cdrom_transfer_packet_command:" reading CDs, but they work fine. -- http://www.pervalidus.net/contact.html

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Cannot use cdrdao with packet device enabled
by Raphael Derosso Pereira - DephiNit 25 Mar '04

25 Mar '04

Hi, I can't write a CD using cdrdao when packetcdvd0 is linked to hdc. This doesn't happen if I just link packetcdvd0 with hdc. It happens if I mount a cd-rw, use it, and unmount. It shows the following message: ERROR: Cannot set write parameters mode page. ERROR: Cannot setup write parameters for session-at-once mode. ERROR: Please try to use the 'generic-mmc-raw' driver. ERROR: Writing failed. I then ran cdrecord in dummy mode and, after the process has begun, cancelled it. Then, I re-ran cdrdao and it worked. It may be some reset problem. I'm using kernel 2.6.4, with patch r2 and my writer is a LG which model shown by cdrecord is HL-DT-ST CD-RW GCE-8400B Thanks, -- Raphael Derosso Pereira - DephiNit dephinit(a)softhome.net Uso Debian GNU/Linux É Livre! http://www.debian-br.org http://www.debian.org

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testing a drive
by John Sowden 25 Mar '04

25 Mar '04

is there a program out there (dos, linux, windows) that allows us to test a cdrw and/or dvd+-rw drive for proper operation. sony seems to have one for their drive, but it seems that ID devices should be able to be tested genericly. John Sowden American Sentry Systems. Inc. 1221 Andersen Drive San Rafael, CA 94901 U.L. Listed Central Station Alarm Service Serving the San Francisco Bay Area Since 1967 mail(a)americansentry.net http://www.americansentry.net

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Mt. Rainier, CDMRW and NEC-2500a
by Thomas Gufler 24 Mar '04

24 Mar '04

Hello, according to the Mt. Rainier Website (mt-rainier.org) the new NEC ND-2500a DVD-Burner is a Mt. Rainier/Easywrite compatible DVD-Drive. However if I try to format a DVD+RW I get the following error message: (cdmrw -d /dev/hdc -f full) mrw format inactive and not complete /dev/hdc: failed to probe mrw mode page When I try to format a cd-rw I get the following error: not a mrw formatted disc /dev/hdc: failed to probe mrw mode page Do I make something wrong, is it a wrong information that the DVD-Drive is Mt. Rainier capable or is this a problem with linux (2.6.4)? Greetings, Tom Gufler

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Re: [PATCH] DVD+-RW for 2.6.4
by Nigel Kukard 24 Mar '04

24 Mar '04

Sorry for being offtopic, Would anyone know how I can contact LG to get DVDRW (GSA-4040B) specs for their vendor specific ASC & ASCQ return codes. I filled in their online form, they said I must contact my local LG office, contacted both of them and neither knows who can help, what i'm talking about or who to put me through to. Thanks guys Nigel

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Reading CDMRW Discs produced by Nero and other tools?
by Steven Ellis 24 Mar '04

24 Mar '04

Is there an easy way to do this under linux. At the moment I can only see the dummy iso track that provides the pointer to the Nero website, but I can't read any of the other data. Is it correct that I need extra kernel support for CDMRW even for just reading the disk? Steve

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[PATCH] DVD+-RW for 2.6.4
by Nigel Kukard 23 Mar '04

23 Mar '04

Hi Guys, I've done some work based on what Any Polakov had in 2.4.x in regards to DVD+-RW. Attached are patches I've created to support DVD+-RW in 2.6.4, just beware on my LG GSA-4040B drive I get a vendor specific error code when I try finalize the media. I have however not noticed any dataloss in 10 multisession dvd's i burnt last night. Please test and let me know what the results are. Daniel, you especially bud. Thanks Nigel Kukard

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packet writting: cdrwtool -d /dev/hdc -q failed
by ke chen 21 Mar '04

21 Mar '04

hi all, I followed the document on http://linuxfromscratch.org/pipermail/hints/2002-August/001207.html and tried to carry on packet writting, but failed even when making disk quick setup. my cd writer: CD-W224EA, ATAPI CD/DVD-ROM drive linux kernel 2.4.23 download the patch packet-2.4.23.patch.bz2 from http://w1.894.telia.com/~u89404340/patches/packet/2.4/ compile the kernel with options: Packet writing on CD/DVD media UDF files systems support (read only) UDF write support (DANGEROUS) after reboot mknod /dev/pktcdvd0 b 97 0 download package udftools-1.0.0b2.tar.gz from http://sourceforge.net/projects/linux-udf then install cdrwtool insert a blank highspped rewrittable disc, [root@localhost /]# /usr/bin/cdrwtool -d /dev/hdc -q -t 4 using device /dev/hdc setting speed to 4 1458KB internal buffer setting write speed to 4x Settings for /dev/hdc: Fixed packets, size 32 Mode-2 disc I'm going to do a quick setup of /dev/hdc. The disc is going to be blanked and formatted with one big track. All data on the device will be lost!! Press CTRL-C to cancel now. ENTER to continue. Initiating quick disc blank Disc capacity is 295264 blocks (590528KB/576MB) Formatting track wait_cmd: Input/output error Command failed: 04 17 00 00 00 00 00 00 00 00 00 00 - sense 05.26.00 format disc: Input/output error in the /var/log/messages Mar 16 23:53:06 localhost kernel: cdrom: This disc doesn't have any tracks I recognize! Mar 16 23:53:06 localhost kernel: hdc: packet command error: status=0x51 { DriveReady SeekComplete Error } Mar 16 23:53:06 localhost kernel: hdc: packet command error: error=0x54 Mar 16 23:53:06 localhost kernel: ATAPI device hdc: Mar 16 23:53:06 localhost kernel: Error: Illegal request -- (Sense key=0x05) Mar 16 23:53:06 localhost kernel: Invalid field in parameter list -- (asc=0x26, ascq=0x00) Mar 16 23:53:06 localhost kernel: The failed "Format Unit" packet command was: Mar 16 23:53:06 localhost kernel: "04 17 00 00 00 00 00 00 00 00 00 00 " Can anybody help me out? Thank you in advance. Best Regards, kurt Do you Yahoo!? Yahoo! Mail - More reliable, more storage, less spam

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Howto write a DVD multisession
by mailinglist＠moviez-at-germany.de 18 Mar '04

18 Mar '04

Hi, I have a backup script, run daily via cron jobs. On every friday a backup from that day (home directorys) will be written to a dvd. That works fine but the problem is, that I dont know how to write the image as multisession. Its too expensive to use for every backup a new dvd. Thx 4 help ! Greetz from germany. Felix

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Root ownership of UDF fs (with patch)
by Joao Luis Meloni Assirati 15 Mar '04

15 Mar '04

Hello, I seems that this list is the appropriated place to discuss udftools. If it is not, please accept my apologies. In the current state of udftools, it is impossible (in Linux, at least) for an user without root access to format and use udf disks. That is because once formated with 'mkudffs /dev/whatever', the cdrom has a filesystem whose root directory belongs to root. Then, to write to the cdrom, the user must: a. be root and use it; or b. be root, # mount /dev/whatever /mnt/whatever # chown <username>:<groupname> /mnt/whatever # umount /mnt/whatever and the use it as a normal user. There would be two ways to solve this problem: 1. Linux udf filesystem honor the uid=... and gid=... options for mount. Then, a nice fstab would be /dev/pktcdvd0 /mnt/cdpkt udf user,noauto,uid=useruid,gid=usergid 0 0 (uid=useruid and gid=usergid seem to be undocumented, but work very well, substituting useruid and usergid by the current values of the user which is mounting the filesystem). 2. Do like mke2fs, that is, set the ownership and group of the root filesystem to the ones of the user who created it. Attached is a simple patch to mkudffs (udftools 1.0.0b3) that provides this behavior. Anyway, having both 1. and 2. is also nice, as having the correct ownership in the media is some sort of signature (I know, it is 'spoofable'). Regards, Joao Luis M. Assirati.

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Results with kernel-2.63, using /dev/hdb and /dev/scd0
by Miguel Quirós Olozábal 07 Mar '04

07 Mar '04

Hello. I have recently compiled the 2.6.3 kernel including into it the patch provided by Peter. The compilation went without any problem. According to kernel documentation, the use of ide-scsi is not neccesary (even deprecated) for IDE-CD writting. In fact, I can use cdrecord with kernel 2.6.3 with dev=/dev/hdb and it works fine. So, I have tried udf writing linking /dev/pktcdvd0 with /dev/hdb. After mounting the drive, it seemed to work at the beginning, I even could write a couple of little files, but after several minutes a lot of ugly error messages appeared in the screen, something like end_request I/O error /dev/hdb sector .... Buffer I/O error More and more messages and more and more quickly appeared as time went by. I have to unmount the drive and unlink pktcdvd0 with hdb to stop them. The messages appear several minutes after mounting the drive even if I just mount it and do nothing else. On the other hand, if I remove the module ide-cd and introduce the module ide-scsi and then link /dev/pktcdvd0 with /dev/scd0 and mount the drive, it seems to work perfectly. So, it seems that for udf writing the ide-scsi emulation is still required (at least, it is for me!). In any case, thanks a lot for providing this useful tool. -- Miguel Quirós Olozábal Departamento de Química Inorgánica Universidad de Granada mquiros<at>ugr<dot>es mquiros<arroba>ugr<punto>es Teléfono: 958240441

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Segmentation fault with 2.6.3
by Mario Giammarco 07 Mar '04

07 Mar '04

Hello, I have just installed kernel 2.6.3 + kolivas patch+ packet writing patch. When I try to mount udf cdrom rw I get "segmentation fault". Dmesg output: nable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: 00000000 *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[<00000000>] Tainted: PF EFLAGS: 00010002 EIP is at 0x0 eax: f77d3a98 ebx: f7cb8000 ecx: c05c4d30 edx: f7cb8090 esi: f7dd1c00 edi: 00002468 ebp: 00000000 esp: e3d8dd38 ds: 007b es: 007b ss: 0068 Process mount (pid: 2108, threadinfo=e3d8c000 task=e3f12ca0) Stack: f89b60da f7dd1c00 f77d3a98 f77d3a98 f7dd1c00 c02e38df f7dd1c00 f77d3a98 c02e5da5 f7dd1c00 f77d3a98 e3d8c000 00000286 e3d8ddec c02e5e3e f7dd1c00 f77d3a98 e3d8dd9c f77d3a98 f89b6623 f77d3a98 f77d3a98 00000002 00000001 Call Trace: [<f89b60da>] pkt_lowlevel_elv_completed_req_fn+0x3a/0x80 [pktcdvd] [<c02e38df>] elv_completed_request+0x1f/0x30 [<c02e5da5>] __blk_put_request+0x55/0xb0 [<c02e5e3e>] blk_put_request+0x3e/0x60 [<f89b6623>] pkt_generic_packet+0x143/0x160 [pktcdvd] [<f89b8814>] pkt_set_speed+0x94/0xb0 [pktcdvd] [<f89b7dde>] pkt_get_last_written+0x6e/0xe0 [pktcdvd] [<f89b8b96>] pkt_open_dev+0x186/0x1e0 [pktcdvd] [<c02e843f>] exact_lock+0xf/0x20 [<c02e22b1>] kobj_lookup+0x131/0x1d0 [<f89b8db1>] pkt_open+0xc1/0x120 [pktcdvd] [<c015e29a>] do_open+0x14a/0x420 [<c015db80>] bdev_test+0x0/0x20 [<c015dba0>] bdev_set+0x0/0x10 [<c015e624>] blkdev_open+0x34/0x80 [<c0155392>] dentry_open+0x142/0x210 [<c0155242>] filp_open+0x62/0x70 [<c01556db>] sys_open+0x5b/0x90 [<c010b335>] sysenter_past_esp+0x52/0x71 Code: Bad EIP value. <6>note: mount[2108] exited with preempt_count 2 bad: scheduling while atomic! Call Trace: [<c011e003>] schedule+0x5b3/0x5c0 [<c0146ba3>] unmap_page_range+0x43/0x70 [<c0146d84>] unmap_vmas+0x1b4/0x210 [<c014abab>] exit_mmap+0x7b/0x190 [<c011fb64>] mmput+0x64/0x90 [<c0123a82>] do_exit+0x152/0x410 [<c011ba40>] do_page_fault+0x0/0x50c [<c010c441>] die+0xe1/0xf0 [<c011bc1e>] do_page_fault+0x1de/0x50c [<c030150b>] ata_output_data+0x8b/0xb0 [<c03015e9>] atapi_output_bytes+0x39/0x80 [<c011cbfc>] recalc_task_prio+0x9c/0x280 [<c011ce8b>] try_to_wake_up+0xab/0x1e0 [<c011ba40>] do_page_fault+0x0/0x50c [<c010bd91>] error_code+0x2d/0x38 [<f89b60da>] pkt_lowlevel_elv_completed_req_fn+0x3a/0x80 [pktcdvd] [<c02e38df>] elv_completed_request+0x1f/0x30 [<c02e5da5>] __blk_put_request+0x55/0xb0 [<c02e5e3e>] blk_put_request+0x3e/0x60 [<f89b6623>] pkt_generic_packet+0x143/0x160 [pktcdvd] [<f89b8814>] pkt_set_speed+0x94/0xb0 [pktcdvd] [<f89b7dde>] pkt_get_last_written+0x6e/0xe0 [pktcdvd] [<f89b8b96>] pkt_open_dev+0x186/0x1e0 [pktcdvd] [<c02e843f>] exact_lock+0xf/0x20 [<c02e22b1>] kobj_lookup+0x131/0x1d0 [<f89b8db1>] pkt_open+0xc1/0x120 [pktcdvd] [<c015e29a>] do_open+0x14a/0x420 [<c015db80>] bdev_test+0x0/0x20 [<c015dba0>] bdev_set+0x0/0x10 [<c015e624>] blkdev_open+0x34/0x80 [<c0155392>] dentry_open+0x142/0x210 [<c0155242>] filp_open+0x62/0x70 [<c01556db>] sys_open+0x5b/0x90 [<c010b335>] sysenter_past_esp+0x52/0x71 Can you help me? Thanks in advance.

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Mt. Rainier HOWTO
by Matthew Arnold 07 Mar '04

07 Mar '04

After much Googling, I believe that I managed to get Mt. Rainier support working on my CD-RW drive with kernel 2.6.3. I wrote a HOWTO about it because I couldn't find one anyplace else. I would appreciate it if anyone would read it and offer any corrections, clarifications, additions, etc. You can find the article at: http://www.thehaus.net/AltOS/Linux/ht-mtrainier.shtml Thanks in advance, Matt aka A.T. Hun

2 1