isofs maintainer and write support

isofs maintainer and write support

[xerces8]

Hi!

I write here as the MAINTAINERS file has no entry about the isofs.

The question is : Is there any plan/way/idea to have read/write support
for isofs ?

I know of user space tools that can perform any operation (like
create/read/write/rename/delete file/directory) but that is nowhere
as convenient as a real filesystem.

Use case: Editing a iso9660 filesystem on a DVD+RW. With a r/w isofs most
changes would take a few seconds, while without, the entire 4.5 gigabytes
must be copied to HD, edited and then remastered back to the DVD medium.
(Why I don't use another FS ? Because I use the DVD to store music for
my car cd/dvd player and it understands only iso9660.)
(neither does it know vorbis. Or aac+ :-( )

Regards,
David Balažic

Re: isofs maintainer and write support

[Jan Engelhardt]

On Jan 13 2008 14:28, xerces8 wrote:
>
>I write here as the MAINTAINERS file has no entry about the isofs.


>
>The question is : Is there any plan/way/idea to have read/write support
>for isofs ?
>
>I know of user space tools that can perform any operation (like
>create/read/write/rename/delete file/directory) but that is nowhere
>as convenient as a real filesystem.

No. ISO-9660 is not meant to be randomly written, just like romfs,
cramfs and squashfs and .tar.gz/.tar.bz2 files. Userspace tools
recreate the whole ISO (or are very smart in reordering blocks). Use
UDF instead.

Re: isofs maintainer and write support

[Lennart Sorensen]

On Sun, Jan 13, 2008 at 02:28:58PM +0100, xerces8 wrote:
> I write here as the MAINTAINERS file has no entry about the isofs.
> 
> The question is : Is there any plan/way/idea to have read/write support
> for isofs ?
> 
> I know of user space tools that can perform any operation (like
> create/read/write/rename/delete file/directory) but that is nowhere
> as convenient as a real filesystem.
> 
> Use case: Editing a iso9660 filesystem on a DVD+RW. With a r/w isofs most
> changes would take a few seconds, while without, the entire 4.5 gigabytes
> must be copied to HD, edited and then remastered back to the DVD medium.
> (Why I don't use another FS ? Because I use the DVD to store music for
> my car cd/dvd player and it understands only iso9660.)
> (neither does it know vorbis. Or aac+ :-( )

I find it hard to believe any device that can read a DVD doesn't support
UDF.  That would be a very dumb design choice.

UDF was designed for read/write use.  iso9660 was very much designed for
read only.  It is much more complex to update an iso9660 filesystem
after it is created.  It just wasn't meant for it.

--
Len Sorensen