"Nikolas Britton" <[EMAIL PROTECTED]> wrote: > On 5/28/06, Hans Lambermont <[EMAIL PROTECTED]> wrote: > > What is the maximum file size on a dvd+r ? > > > > System : 5.4-RELEASE-p6 > > Command used : growisofs -Z /dev/cd0 -l -J -r burn/ > > In burn/ I have a backup file of size 4166629386 bytes and some > > smaller files. In total 4577410 kB. > > > > growisofs ends normally : > > 99.88% done, estimate finish Fri May 26 23:22:48 2006 > > Total translation table size: 0 > > Total rockridge attributes bytes: 519 > > Total directory bytes: 0 > > Path table size(bytes): 10 > > Max brk space used d724 > > 2287734 extents written (4468 MB) > > builtin_dd: 2287744*2KB out @ average 2.4x1385KBps > > /dev/pass0: flushing cache > > /dev/pass0: closing track > > /dev/pass0: closing session > > # echo $? > > 0 > > > > An 'ls -la' of the mounted dvd+r shows : > > ls: backup.bz2: Value too large to be stored in data type > > > > I can read the whole dvd without problems on a non-FreeBSD system. I > > cannot find a limit in GROWISOFS(1m) or MKISOFS(8), but on > > http://unix.derkeiler.com/Mailing-Lists/FreeBSD/questions/2005-12/msg01736.html > > I read about a 2 GB maximum filesize for a file on a dvd. Is this > > true ? If so I think it should be mentioned in GROWISOFS(1m). > > > > FreeBSD's implementation is correct, Linux is the one that's wrong, > they decided to embrace and extend the standard. Theirs a 2GB cap per > file on DVDs.
http://www.freebsd.org/cgi/query-pr.cgi?pr=kern-91488: |The cd9660 filesystem can not handle files of more than 2147483647 bytes, |while the specification of the filesystem arguably allows for files up to |4294967295 bytes. (Specifically, the "32 bit quantity" is not specified as |signed or unsigned. In my opinion, since negative file sizes are not |meaningfull, it should be interpreted as unsigned.) While I didn't read the spec, I heard that explanation before and I think it's entirely correct to assume that the file size value is unsigned. This has nothing to do with embracing standards. Fabian -- http://www.fabiankeil.de/
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