Re: dvd+rw-tools 7.0: iso burning problem
I faced a problem with dvd+rw-tools (6.0, 6.1 und 7.0) when I tried to burn a DVD-Iso-Image to a dvd using the command line growisofs -Z /dev/scd2=/media/CDWserver/export/Server/DVD-Images/KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso But it gives an invalid argument error: Output Executing 'builtin_dd if=/media/CDWserver/export/Server/DVD-Images/KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso of=/dev/scd2 obs=32k seek=0' :-( write failed: Invalid argument The following command line works well: cat KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso | growisofs -Z /dev/scd2=/dev/fd/0 Why is there is difference between these two commands. Why does the second work and the first not? I'd bet on the fact that growisofs opens file with O_DIRECT, while cat doesn't. For public reference. It turned to be the problem with ext3 implementation under 2.4 missing direct I/O method, which appears to be trivial [and erroneous] omission in kernel source [at lest ext2 implements this method]. One would normally expect O_DIRECT flag rejected already at open(2), but it doesn't seem to be the case. It remains mystery why it was not noticed earlier by 2.4 users. Next version shall compensate for this by banning O_DIRECT under 2.4 [naturally at run-time]. Meanwhile those who suffer from this can modify #ifdef O_DIRECT line in growisofs.c as #ifdef __notdef__ to work around the problem. A. P.S. for Marcus. The final conclusion slightly differs from one I gave you in private conversation, but it the workaround is the same. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: dvd+rw-tools 7.0: iso burning problem
Hi, [...] problem with ext3 implementation under 2.4 [...] It remains mystery why it was not noticed earlier by 2.4 users. On my 2.4.21 kernel SuSE 9.0 and ext3 based /home there is no problem with growisofs 7.0 and this command: growisofs -Z /dev/sr1=/home/fertig.iso Shrug. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: dvd+rw-tools 7.0: iso burning problem
Hi Thomas, Am Dienstag, 10. Oktober 2006 22:01 schrieb [EMAIL PROTECTED]: [...] problem with ext3 implementation under 2.4 [...] It remains mystery why it was not noticed earlier by 2.4 users. On my 2.4.21 kernel SuSE 9.0 and ext3 based /home there is no problem with growisofs 7.0 and this command: growisofs -Z /dev/sr1=/home/fertig.iso I found the problem on kernel 2.4.26 used by the german eisfair linux server project. It occurs with dvd-rw-tools 6.0-7.0. -- Gruss Marcus Marcus Roeckrath -- Vikarsbusch 8 -- D-48308 Senden -- Germany Phone : +49-2536-9944 -- Fax : +49-2536-9943 E-Mail : [EMAIL PROTECTED] WWW: http://home.foni.net/~marcusroeckrath/ pgpnZYJEyXTmJ.pgp Description: PGP signature
Re: dvd+rw-tools 7.0: iso burning problem
Hi Andy, Am Dienstag, 10. Oktober 2006 21:20 schrieb Andy Polyakov: It remains mystery why it was not noticed earlier by 2.4 users. I had written two reports on this mailinglist in june 2006 but got no comment on it. P.S. for Marcus. The final conclusion slightly differs from one I gave you in private conversation, but it the workaround is the same. Ok, I will wait for dvd+rw-tools 7.1 to compile a new package for the eisfair project. Till then I use the workaround you gave me in private mail: ifdef USE_O_DIRECT instead of ifdef O_DIRECT. -- Gruss Marcus Marcus Roeckrath -- Vikarsbusch 8 -- D-48308 Senden -- Germany Phone : +49-2536-9944 -- Fax : +49-2536-9943 E-Mail : [EMAIL PROTECTED] WWW: http://home.foni.net/~marcusroeckrath/ pgpgziVkSTeiD.pgp Description: PGP signature
Re: dvd+rw-tools 7.0: iso burning problem
It remains mystery why it was not noticed earlier by 2.4 users. I had written two reports on this mailinglist in june 2006 but got no comment on it. Sorry about that. Life does not always turn the way we like:-) Yet, you have to admit it's somewhat mysterious, because June is ~1/2 year[!] after first release utilizing O_DIRECT... Cheers. A. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: dvd+rw-tools 7.0: iso burning problem
I faced a problem with dvd+rw-tools (6.0, 6.1 und 7.0) when I tried to burn a DVD-Iso-Image to a dvd using the command line growisofs -Z /dev/scd2=/media/CDWserver/export/Server/DVD-Images/KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso But it gives an invalid argument error: Output Executing 'builtin_dd if=/media/CDWserver/export/Server/DVD-Images/KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso of=/dev/scd2 obs=32k seek=0' :-( write failed: Invalid argument This was a problem with 6.x on Linux for files residing on NFS, but it's fixed in 7.0. Double-check that you're running 7.0 and run the command under strace [on Linux or whatever system call tracing utility for your OS] and [to save the public bandwidth] send the system call trace to me. The following command line works well: cat KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso | growisofs -Z /dev/scd2=/dev/fd/0 Why is there is difference between these two commands. Why does the second work and the first not? I'd bet on the fact that growisofs opens file with O_DIRECT, while cat doesn't. A. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
dvd+rw-tools 7.0: iso burning problem
Hi Andy, I faced a problem with dvd+rw-tools (6.0, 6.1 und 7.0) when I tried to burn a DVD-Iso-Image to a dvd using the command line growisofs -Z /dev/scd2=/media/CDWserver/export/Server/DVD-Images/KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso But it gives an invalid argument error: Output Executing 'builtin_dd if=/media/CDWserver/export/Server/DVD-Images/KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso of=/dev/scd2 obs=32k seek=0' :-( write failed: Invalid argument The following command line works well: cat KNOPPIX_V5.0.1DVD-2006-06-01-DE.iso | growisofs -Z /dev/scd2=/dev/fd/0 I have had a look on the sources but couldn't figure out which is the reason for this problem. Why is there is difference between these two commands. Why does the second work and the first not? Using dvd+rw-tools 5.21.4.10.8 both commands works perfect. -- Greetings from Marcus -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
