Public bug reported: Binary package hint: brasero
Hi, I wanted to try the new ubuntu lucid beta 1. I went out a bought a CD- RW. I burned the ubuntu iso on it with brasero on my Karmic PC, and checked the md5sum. It failed: s...@b-laptop:~$ md5sum /dev/cdrom md5sum: /dev/cdrom: Input/output error First of all I checked the downloaded ISO, but it was ok. So I tried another PC (always equipped with ubuntu 9.10), and got the same exact results. At this point, the culprit is the new CD-RW disk. I went out and bought another and different one: TDK the former, Verbatim the latter. I repeated the above steps, and got the same results! Incredible. So I tried some other burning programs. First of all, I did a complete CD-RW blank with cdrecord. Then, I tried again to burn the image from command line. From that run, I've actually seen the problem: s...@b-laptop:~$ sudo cdrecord -v speed=2 Downloads/ubuntu-10.04-beta1-desktop-i386.iso ... Starting new track at sector: 0 Track 01: 675 of 675 MB written (fifo 100%) [buf 100%] 4.0x. Track 01: Total bytes read/written: 707854336/707854336 (345632 sectors). Writing time: 1154.268s Average write speed 4.0x. Min drive buffer fill was 100% Fixating... Errno: 5 (Input/output error), close track/session scsi sendcmd: no error CDB: 5B 00 02 00 00 00 00 00 00 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 03 00 00 00 00 0A 00 00 00 00 72 01 00 00 Sense Key: 0x3 Medium Error, Segment 0 Sense Code: 0x72 Qual 0x01 (session fixation error writing lead-in) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 11.533s timeout 480s cmd finished after 11.533s timeout 480s wodim: Cannot fixate disk. As you can see, actually the burn process was not completing correctly. Hence, the md5sum was failing. Too bad, I did not managed to understand why wodim could not fixate the disk. As a last resort, I tried burning with k3b. And, guess what? It succeeded! s...@b-laptop:~$ md5sum /dev/cdrom 7ddbfbcfcc562bae2e160695ec820e39 /dev/cdrom I think we have a problem with cdrecord and brasero! I'm going to attach some logs, please feel free to ask if more info is needed! Thanks ProblemType: Bug Architecture: i386 Date: Tue Apr 6 17:11:13 2010 DistroRelease: Ubuntu 9.10 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release Candidate i386 (20091020.3) NonfreeKernelModules: wl Package: brasero 2.28.2-0ubuntu1 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-20.58-generic SourcePackage: brasero Uname: Linux 2.6.31-20-generic i686 ** Affects: brasero (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 -- Burned iso image corrupted https://bugs.launchpad.net/bugs/556595 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs