Re: How-to erase a DVD-RW
On Thu, Feb 12, 2009 at 09:44:03AM +0200, Manolis Kiagias wrote: Gary Kline wrote: iS there an easy way (by cmd-line) to erase a used DVD-RW? I tried K3B and can't figure out where to click! tia, gary Try something like dvd+rw-format /dev/cd0 -blank dvd+rw-format comes with sysutils/dvd+rw-tools (you probably have it installed already). Super! (I just tried and the flag is ``-force'', but it works:) gary -- Gary Kline kl...@thought.org http://www.thought.org Public Service Unix http://jottings.thought.org http://transfinite.thought.org The 2.23a release of Jottings: http://jottings.thought.org/index.php ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How-to erase a DVD-RW
iS there an easy way (by cmd-line) to erase a used DVD-RW? I tried K3B and can't figure out where to click! simply don't use easy to use GUI just use actual program which is growisofs and dvd+rw-format recording 0 bytes DVD will do the trick, i don't see explicit cleaning option in growisofs now. dvd+rw-format will clear DVD+RW disk. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How-to erase a DVD-RW
On Thu, 12 Feb 2009 10:16:26 +0100 (CET), Wojciech Puchar woj...@wojtek.tensor.gdynia.pl wrote: recording 0 bytes DVD will do the trick, i don't see explicit cleaning option in growisofs now. The manpage of growisofs suggests this: Note that DVD+RW re-formatting procedure does not substitute for blank- ing. If you want to nullify the media, e.g. for privacy reasons, do it explicitly with 'growisofs -Z /dev/dvd=/dev/zero'. dvd+rw-format will clear DVD+RW disk. Definitely much easier. -- Polytropon From Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How-to erase a DVD-RW
The manpage of growisofs suggests this: Note that DVD+RW re-formatting procedure does not substitute for blank- ing. If you want to nullify the media, e.g. for privacy reasons, do it explicitly with 'growisofs -Z /dev/dvd=/dev/zero'. which is exactly what i suggested - writing 0 byte disc dvd+rw-format will clear DVD+RW disk. Definitely much easier. -- Polytropon From Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How-to erase a DVD-RW
Wojciech Puchar wrote: The manpage of growisofs suggests this: Note that DVD+RW re-formatting procedure does not substitute for blank- ing. If you want to nullify the media, e.g. for privacy reasons, do it explicitly with 'growisofs -Z /dev/dvd=/dev/zero'. which is exactly what i suggested - writing 0 byte disc that writes binary 0, the ASCII NUL character. /dev/zero is NOT a zero-size file. Untested, and I don't use DVD RW medium as I don't have a need for it yet: growisofs -Z /dev/cd0=: the : is interpreted by the csh shell as an always true return value, to which you can use to truncate files: :/boot/kernel/kernel #only the inexperienced may blindly try this. DON'T TRY THIS AT HOME OR WORK Given this logic, it should also return true for an input file. Try it. I'd be curious to see if it works. --Tim dvd+rw-format will clear DVD+RW disk. Definitely much easier. -- Polytropon From Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How-to erase a DVD-RW
which is exactly what i suggested - writing 0 byte disc that writes binary 0, the ASCII NUL character. /dev/zero is NOT a zero-size file. yes it is [woj...@wojtek ~/NOBACKUP]$ dd if=/dev/null of=/dev/null bs=1 0+0 records in 0+0 records out 0 bytes transferred in 0.37 secs (0 bytes/sec) /dev/null simply gives EOF when trying to read ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How-to erase a DVD-RW
2009/2/12 Wojciech Puchar woj...@wojtek.tensor.gdynia.pl: which is exactly what i suggested - writing 0 byte disc that writes binary 0, the ASCII NUL character. /dev/zero is NOT a zero-size file. yes it is [woj...@wojtek ~/NOBACKUP]$ dd if=/dev/null of=/dev/null bs=1 0+0 records in 0+0 records out 0 bytes transferred in 0.37 secs (0 bytes/sec) /dev/null simply gives EOF when trying to read But we're talking about /dev/zero, not /dev/null ... [ch...@zeus]~% dd if=/dev/zero of=/dev/null bs=2 count=5 5+0 records in 5+0 records out 10 bytes transferred in 0.50 secs (200684 bytes/sec) [ch...@zeus]~% Chris -- R $h ! $- ! $+ $@ $2 @ $1 .UUCP. (sendmail.cf) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How-to erase a DVD-RW
Wojciech Puchar wrote: which is exactly what i suggested - writing 0 byte disc that writes binary 0, the ASCII NUL character. /dev/zero is NOT a zero-size file. yes it is [woj...@wojtek ~/NOBACKUP]$ dd if=/dev/null of=/dev/null bs=1 0+0 records in 0+0 records out 0 bytes transferred in 0.37 secs (0 bytes/sec) /dev/null simply gives EOF when trying to read we're not talking about null we're talking about zero Try again, maybe? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: How-to erase a DVD-RW
Gary Kline wrote: iS there an easy way (by cmd-line) to erase a used DVD-RW? I tried K3B and can't figure out where to click! tia, gary Try something like dvd+rw-format /dev/cd0 -blank dvd+rw-format comes with sysutils/dvd+rw-tools (you probably have it installed already). ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
