Public bug reported: Binary package hint: wodim
I recently have tried to download and burn Ubuntu ISO images to CD. On different computers (C2D on P35 board, Thinkpad T41), with different drives (LiteOn DH20A1S, Toshiba SD-R5002, and IBM Ultrabay Slim DVD Burner) and different media (Tevion, Platinum), I see "Input/Output errors" during the installation, as described in https://bugs.launchpad.net/ubuntu/+bug/245794 The burn process (via Nautilus right-click) works without indication of any error. However, when trying to dd if=/dev/scd0 of=test.iso back from cd to hd, the copying will fail right before the end of the medium, indicating an "input/output error". This happens every time with both mentioned karmic machines I have around. md5sum of /dev/scd0 will also fail. The amount of data where the errors occur before the proper end of the medium is in a couple-of-dozen kilobytes range, but not reproducible, in fact I have seen a differing amount for one misburned cd. To rule out a bad streak of luck, I downloaded and built current Schily cdrtools from source. These work perfectly well from the command line, and when burned without any further options, md5sum /dev/scd0 perfectly matches the distribution md5 for the karmic iso (8790491b...). Therefore, I assume there is a bug somewhere in the brasero/wodim stack, and with the given symptoms (silent burn failure, obscure installation errors in the process, coasters) it is a particularly nasty one. I did not see any of the other bugs mention misburned cds after a silent failure, so I post this new bug. Lacking an ample supply of blanks after all the mis-burns, I do not feel much inclined right now to spend the last remaining ones on trying to generate logs of the faulty case. r...@neon:~$ lsb_release -rd Description: Ubuntu 9.10 Release: 9.10 r...@neon:~$ apt-cache policy wodim wodim: Installiert: 9:1.1.9-1ubuntu2 Kandidat: 9:1.1.9-1ubuntu2 Versions-Tabelle: *** 9:1.1.9-1ubuntu2 0 500 http://de.archive.ubuntu.com karmic/main Packages 100 /var/lib/dpkg/status r...@neon:~$ apt-cache policy brasero brasero: Installiert: 2.28.1-0ubuntu1 Kandidat: 2.28.1-0ubuntu1 Versions-Tabelle: *** 2.28.1-0ubuntu1 0 500 http://de.archive.ubuntu.com karmic/main Packages 100 /var/lib/dpkg/status Drive hardware, one SATA, one IDE --------------------------------------------- 3,0,0 300) 'ATAPI ' 'DVD A DH20A1S ' 'UX14' Removable CD-ROM 6,1,0 601) 'TOSHIBA ' 'DVD-ROM SD-R5002' '1031' Removable CD-ROM Bad case verification after Right-Click Nautilus iso burn: --------------------------------------------------------------------- r...@neon:~/Source/cdrtools-2.01.01$ dd if=/dev/scd0 of=/home/rich/test.iso dd: Lesen von "/dev/scd0": Input/output error 1412832+0 Datensaetze ein 1412832+0 Datensaetze aus 723369984 Bytes (723 MB) kopiert, 161,778 s, 4,5 MB/s r...@neon:~/Source/cdrtools-2.01.01$ md5sum /dev/scd0 md5sum: /dev/scd0: Input/output error r...@neon:~/Source/cdrtools-2.01.01$ Good case with cdrecord: -------------------------------- r...@neon:~/Source/cdrtools-2.01.01$ /opt/schily/bin/cdrecord -v speed=1 dev=3,0,0 /home/rich/Downloads/ubuntu-9.10-desktop-i386.iso /opt/schily/bin/cdrecord: No write mode specified. /opt/schily/bin/cdrecord: Assuming -sao mode. /opt/schily/bin/cdrecord: If your drive does not accept -sao, try -tao. /opt/schily/bin/cdrecord: Future versions of cdrecord may have different drive dependent defaults. Cdrecord-ProDVD-ProBD-Clone 2.01.01a66 (i686-pc-linux-gnu) Copyright (C) 1995-2009 JÔøΩrg Schilling TOC Type: 1 = CD-ROM scsidev: '3,0,0' scsibus: 3 target: 0 lun: 0 Linux sg driver version: 3.5.34 Using libscg version 'schily-0.9'. SCSI buffer size: 64512 atapi: 1 Device type : Removable CD-ROM Version : 5 Response Format: 2 Capabilities : Vendor_info : 'ATAPI ' Identifikation : 'DVD A DH20A1S ' Revision : 'UX14' Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM. Current: CD-R Profile: DVD+R/DL Profile: DVD+R Profile: DVD+RW Profile: DVD-R/DL layer jump recording Profile: DVD-R/DL sequential recording Profile: DVD-RW sequential recording Profile: DVD-RW restricted overwrite Profile: DVD-RAM Profile: DVD-R sequential recording Profile: DVD-ROM Profile: CD-RW Profile: CD-R (current) Profile: CD-ROM Profile: Removable Disk Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE FORCESPEED Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R LAYER_JUMP Drive buf size : 988416 = 965 KB /opt/schily/bin/cdrecord: Warning: The DMA speed test has been skipped. FIFO size : 4194304 = 4096 KB Track 01: data 689 MB Total size: 792 MB (78:30.21) = 353266 sectors Lout start: 792 MB (78:32/16) = 353266 sectors Current Secsize: 2048 ATIP info from disk: Indicated writing power: 5 Disk Is not unrestricted Disk Is not erasable Disk sub type: Medium Type A, high Beta category (A+) (3) ATIP start of lead in: -11634 (97:26/66) ATIP start of lead out: 359846 (79:59/71) Disk type: Short strategy type (Phthalocyanine or similar) Manuf. index: 3 Manufacturer: CMC Magnetics Corporation Capacity Blklen/Sparesz. Format-type Type 449849 2048 0x00 No Media Present or Unknown Capacity Blocks total: 359846 Blocks current: 359846 Blocks remaining: 6580 Forcespeed is OFF. Starting to write CD/DVD/BD at speed 16 in real SAO mode for single session. Last chance to quit, starting real write 0 seconds. Operation starts. Waiting for reader process to fill input buffer ... input buffer ready. BURN-Free is OFF. Performing OPC... Sending CUE sheet... Writing pregap for track 1 at -150 Starting new track at sector: 0 Track 01: 689 of 689 MB written (fifo 100%) [buf 99%] 16.9x. Track 01: Total bytes read/written: 723488768/723488768 (353266 sectors). Writing time: 318.341s Average write speed 15.5x. Min drive buffer fill was 99% Fixating... Fixating time: 7.073s /opt/schily/bin/cdrecord: fifo had 11396 puts and 11396 gets. /opt/schily/bin/cdrecord: fifo was 0 times empty and 11324 times full, min fill was 90%. r...@neon:~/Source/cdrtools-2.01.01$ dd if=/dev/scd0 of=/home/rich/test.iso 1413064+0 Datensaetze ein 1413064+0 Datensaetze aus 723488768 Bytes (723 MB) kopiert, 153,932 s, 4,7 MB/s r...@neon:~/Source/cdrtools-2.01.01$ md5sum /dev/scd0 8790491bfa9d00f283ed9dd2d77b3906 /dev/scd0 ** Affects: cdrkit (Ubuntu) Importance: Undecided Status: New -- ISO burn silently causes input/output error and end of medium https://bugs.launchpad.net/bugs/465035 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
