Arch Linux

brucebertrand

Member

Registered: 2006-07-24

Posts: 52

Fit 4+gig file on DVD - split it?

Hi all,

I need to fir a 4.2 gig file onto a DVD in such a way that it can be accessed from Windows XP (so no Linux-filesystem-on-DVD methods).
Does anyone know of a way to do this without splitting the file?

If not, what's the best recommended way to split a file for recombination in XP, preferably with GUI FOSS or software built into XP.

Thanks a lot,
~B

zack

Member

From: Portsmouth, UK

Registered: 2006-09-11

Posts: 32

Re: Fit 4+gig file on DVD - split it?

I don't know about you but all of my DVDs are 4.3gb or 4.7gb anyway, so you should be able to fit it on without any trouble using any burning software (I reccomend deepburner for XP).

brucebertrand

Member

Registered: 2006-07-24

Posts: 52

Re: Fit 4+gig file on DVD - split it?

I don't know about you but all of my DVDs are 4.3gb or 4.7gb anyway, so you should be able to fit it on without any trouble using any burning software (I reccomend deepburner for XP).

Yes, but 2 gigs is the max that can be written with mkisofs (or 4 gigs for more recent/dev versions).
I don't own XP.

Last edited by brucebertrand (2007-03-03 22:33:09)

hugin

Member

Registered: 2006-05-19

Posts: 93

Re: Fit 4+gig file on DVD - split it?

iirc, growisofs doesn't have that limit.  try using that.  it's part of dvd+rw-tools.

/swogs

Last edited by hugin (2007-03-05 16:04:38)

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gradgrind

Member

From: Germany

Registered: 2005-10-06

Posts: 921

Re: Fit 4+gig file on DVD - split it?

But growisofs uses mkisofs ...

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zack

Member

From: Portsmouth, UK

Registered: 2006-09-11

Posts: 32

Re: Fit 4+gig file on DVD - split it?

Can K3B do the job?

brucebertrand

Member

Registered: 2006-07-24

Posts: 52

Re: Fit 4+gig file on DVD - split it?

As with most Linux GUI programs, K3B is just a front end for a set of CLI tools.  In this case K3B uses growisofs.

Last edited by brucebertrand (2007-03-05 19:44:48)

brucebertrand

Member

Registered: 2006-07-24

Posts: 52

Re: Fit 4+gig file on DVD - split it?

ISO9660/Joilet, the filesystem that mkisofs uses, has a 2GB file size limit (or 4GB, for the dev version).
The UDF filesystem has a much larger limit, but the UDF implementation in mkisofs/growisofs won't accept files larger than 2GB (or 4GB for dev ver???)

However, growisofs can burn a premastered UDF disc image to DVD.
So, I need to create a UDF image.

Taken from http://www.lemoncube.com/412.html

dd if=/dev/zero of=image2.udf bs=64k seek=71715 count=1
losetup /dev/loop0 image2.udf
mkudffs --media-type=dvd /dev/loop0
mount -t udf /dev/loop0 /mnt
cp backup_bigger_than_2gb.tar.gz /mnt
umount /mnt
losetup -d /dev/loop0
growisofs -Z /dev/hdd=image2.udf

BUT, When I try to copy the file to the new loop device, it bails out at 1GB with a "File size exceeded" error.
Turns out that, as of recently (around kernel version 2.6.8) , UDF in Linux is unable to handle files larger than 1GB.

See: http://git.kernel.org/?p=linux/kernel/g … 1b539fea44
And: http://www.mail-archive.com/debian-secu … 33301.html

In this last post, does anyone know what Omer meant about using strip to work around the problem?

lilsirecho

Veteran

Registered: 2003-10-24

Posts: 5,000

Re: Fit 4+gig file on DVD - split it?

I have created a Live Larch dual-layer DVD with 7.6GB of data with K3B and it boots copy-to-ram with no problems.  The Linux boot portion is over 700MB and the added packages are not involved in the boot-up but are available to install via pacman...3200 packages in all.

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Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

brucebertrand

Member

Registered: 2006-07-24

Posts: 52

Re: Fit 4+gig file on DVD - split it?

I have created a Live Larch dual-layer DVD with 7.6GB of data with K3B and it boots copy-to-ram with no problems.  The Linux boot portion is over 700MB and the added packages are not involved in the boot-up but are available to install via pacman...3200 packages in all.

The point of the thread, though, is that its difficult to put a single file larger than 2gb onto a dvd.

lilsirecho

Veteran

Registered: 2003-10-24

Posts: 5,000

Re: Fit 4+gig file on DVD - split it?

My DVD has a single folder containing over 3200 packages and none of the files therein are 2GB ...as you point out the limits of file size.

Knoppix has a DVD with full 4.7GB but uses two "cloop" systems to do it.

It would seem you might split the file, rename one-half and burn to DVD r/w.  Then  copy,rename and join the files when in Desktop.

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Prediction...This year will be a very odd year!
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

brucebertrand

Member

Registered: 2006-07-24

Posts: 52

Re: Fit 4+gig file on DVD - split it?

It would seem you might split the file, rename one-half and burn to DVD r/w.  Then  copy,rename and join the files when in Desktop.

Yes...that's what I asked about in the initial post....

...what's the best recommended way to split a file for recombination in XP, preferably with GUI FOSS or software built into XP.

Can you suggest a method of splitting a file so that it can be recombined in XP by someone who will need a point-n-click interface.

hugin

Member

Registered: 2006-05-19

Posts: 93

Re: Fit 4+gig file on DVD - split it?

I think 7-zip would be your best bet.  I would turn the compression as far down as possible to make it as fast as possible.  I've not actually done this, but it's an idea.  You can use 7zip from Arch with the p7zip app in the extra repo. 

/swogs

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Open Toes; Open Mind; Open Source.

brucebertrand

Member

Registered: 2006-07-24

Posts: 52

Re: Fit 4+gig file on DVD - split it?

I've tried 7zip, but the MD5 hash of the extracted file differs from that of the original.  This seems strange, so perhaps I'm not using the proper options.

diogenes

Member

Registered: 2007-04-11

Posts: 17

Re: Fit 4+gig file on DVD - split it?

I was having this problem too, using growisofs...but using the -allow-limited-size option in the command line got it working...but it gives me this warning:

This size can only be represented in the UDF filesystem.
Make sure that your clients support and use it.
ISO9660, Joliet, RockRidge, HFS will display incorrect size

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,488

Website

Re: Fit 4+gig file on DVD - split it?

Can you just use "split" and "cat" the files together later on?  I have done that with video files before.

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SiD

Member

From: Germany

Registered: 2006-09-21

Posts: 729

Re: Fit 4+gig file on DVD - split it?

If WinXp is able to handle a UDF DVD you could use k3b (e.g.). Set UDF as filesystem and burn it.

P.S.
Sorry, but I don't know if XP could read UDF DVDs ...

Last edited by SiD (2007-12-14 00:36:10)