Date: Fri, 24 Jun 2005 20:14:12 +0200 From: Fabian Keil <freebsd-listen@fabiankeil.de> To: "Andrew L. Gould" <algould@datawok.com> Cc: freebsd-questions@freebsd.org Subject: Re: 3G file burns to -514M file on DVD-R Message-ID: <20050624201412.7bc0d769@localhost> In-Reply-To: <200506191828.07064.algould@datawok.com> References: <20050619141506.1222993f@localhost> <200506191828.07064.algould@datawok.com>
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[-- Attachment #1 --] "Andrew L. Gould" <algould@datawok.com> wrote: > On Sunday 19 June 2005 07:15 am, Fabian Keil wrote: > > "Andrew L. Gould" <algould@datawok.com> wrote: > > > I have a gzip'd database backup file that's 3GB in size. I used > > > mkisofs to create an iso image for burning to a DVD-R. Both the > > > mkisofs and growisofs process appeared to finish successfully; but > > > 'ls -alh' shows the resulting file to be -514M in size when the > > > DVD-R is mounted in FreeBSD 4.10. When I mount the dvd in a > > > separate FreeBSD 5.4 system, ls -alh results in 'ls: > > > /cdrom/pgdumpall.gz: Value too large to be stored in data type'. I > > > ftp'd the original 3GB file from the FreeBSD 4.10 system to the > > > FreeBSD 5.4 system. ls -alh reads the size of the original file > > > correctly. > > > > > > Windows reads the DVD-R and shows the file size correctly. > > > > > > I've tried recreating the iso image using -r and -l options and > > > burning the iso file with and without the -dvd-compat option; but > > > the results remain the same. > > Split your backup file before creating the iso. > > > > At the moment FreeBSD can't handle big files on isofs. > > If I remember correctly, big means > 1 GB, but I'm not sure. > > > > You should still be able to extract the file with isoinfo > > from the cdrtools port. > Once I've burned the DVD, how can I rejoin the files created using the > -split-output option so that I can reload the database from the dump > file? The man pages for mkisofs, isoinfo and split weren't very > helpful in this regard. You misunderstood the -split-output option. It splits the image itself, so that it can be saved on file systems which have trouble with big files. I guess files splitted with split(1) can be rebuild with cat, haven't tried it though. Fabian -- http://www.fabiankeil.de/ [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFCvE2YoomUOj0wp30RAtauAJ4xxsWIOW+9nmdhVfitVKUiTcYtCACfTwi/ Rbgtd/CwGK/XDlajzAsK3xg= =V44C -----END PGP SIGNATURE-----
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