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Mac Forum / Programming / Mac Programming / October 2004



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Is it possible to get different filesystems recognised by Mac OS X

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Gary - 28 Oct 2004 18:49 GMT
I'd like to get a DATEL Max Drive XBOX USB storage key working on the Mac.  
This is a standard USB key that the Mac can understand just fine, the file
system on it is FATX which Mac OS X does not understand.   FATX has a driver
in Linux kernel 2.4 , and I can use the key on that, and I did find a port of
EXT2 to Mac OS but I haven't installed that yet as the docos don't tell me
what will be done to the Mac if I install the package.

I am thinking that if EXT2 can be ported from Linux to OS X, then FATX can be
too?

Can anyone who's installed the EXT2 package for Mac OS X tell me what was
installed and if it's safe!  It might well be that I can build upon this
sourceforge project to do a similar thing with the FATX file system.

The reason for this question is that whilst I know Unix well, and C, and
Linux, I'm relatively new to Mac OS X and I'd rather not fubar this Mac
(although I have CCC backups) until I have to. I don't even know if the
current EXT2 port is userland or kernel level.   Hoping it's userland.
Chris Ridd - 28 Oct 2004 19:13 GMT
On 28/10/04 6:49 pm, in article
0001HW.BDA6EFAB0001AE1EF04075B0@news.clara.net, "Gary"
<postmaster@127.0.0.1> wrote:

> I'd like to get a DATEL Max Drive XBOX USB storage key working on the Mac.
> This is a standard USB key that the Mac can understand just fine, the file
[quoted text clipped - 5 lines]
> I am thinking that if EXT2 can be ported from Linux to OS X, then FATX can be
> too?

I daresay. Do you have the specs for it, or just the Linux implementation?
Is the Linux implementation GPLed?

> Can anyone who's installed the EXT2 package for Mac OS X tell me what was
> installed and if it's safe!  It might well be that I can build upon this
[quoted text clipped - 4 lines]
> (although I have CCC backups) until I have to. I don't even know if the
> current EXT2 port is userland or kernel level.   Hoping it's userland.

Try asking on the darwin-drivers list.

   <http://lists.apple.com/mailman/listinfo/darwin-drivers>

Cheers,

Chris
Gary - 28 Oct 2004 19:56 GMT
> I daresay. Do you have the specs for it, or just the Linux implementation?
> Is the Linux implementation GPLed?

Aye. There is a sourceforge for FATX.

> Try asking on the darwin-drivers list.
>
>     <http://lists.apple.com/mailman/listinfo/darwin-drivers>

I will, thanks.

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Chris Ridd - 28 Oct 2004 20:37 GMT
On 28/10/04 7:56 pm, in article 1098989662.55912.0@iris.uk.clara.net, "Gary"
<postmaster@127.0.0.1> wrote:

>> I daresay. Do you have the specs for it, or just the Linux implementation?
>> Is the Linux implementation GPLed?
>
> Aye. There is a sourceforge for FATX.

I couldn't find that, but I could find
<http://www.xbox-linux.org/docs/fatxfat.html>

>> Try asking on the darwin-drivers list.
>>
>>     <http://lists.apple.com/mailman/listinfo/darwin-drivers>
>
> I will, thanks.

You'd probably find it easier to hack the existing FAT filesystem for
Darwin, that to start from scratch.

Darwin sources are at <http://www.opendarwin.org/>

Cheers,

Chris
Gary - 28 Oct 2004 21:24 GMT
> I couldn't find that, but I could find
> <http://www.xbox-linux.org/docs/fatxfat.html>

Hm yes. I think maybe I found the xbox-linux links but my
/usr/src/linux/fs/fatx contains source for the linux kmod for FATX.

I think I really was wanting info on how Mac EXT2 was put together and
how much code was common between /usr/src/linux/fs/ext2 and the Mac
version.  Of course, I now think I should just grab the CVS of the Mac
code and have a look. Not sure why I didn't think of that in the first
instance.  Just giddy with anticipation I suppose.

I'm thinking of tackling this because (A) The Datel Xbox MAX Drive
states that it requires ' A PC with a USB port ' and as far as I'm
concerned, my Personal Computer has such a port. Nowhere on the box does
it mention any version of Windows required which would imply an Intel
based PC running Windows and (B) The shitty Datel software won't
recognise the key when used with VPC.  If I use the Mac to reformat the
key with FAT, then VPC recognises it no problem (but it will no longer
work on an XBox). So the hardware is compatible with Mac/VPC but the
software is fooked.  As I can access the key and work with it on Linux,
I thought I could make it work on Mac.

> You'd probably find it easier to hack the existing FAT filesystem for
> Darwin, that to start from scratch.
>
> Darwin sources are at <http://www.opendarwin.org/>

Will download the Mac EXT2 stuff from SF and find out how that works
before going forward I think.

Cheers!

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