Filesystem that both FreeBSD and OS X can read/write

Garrett Cooper youshi10 at
Sun Apr 1 19:47:14 UTC 2007

mal content wrote:
> On 01/04/07, Eric Crist <mnslinky at> wrote:
>> On Apr 1, 2007, at 12:53 PM, mal content wrote:
>> > Hello.
>> >
>> > I have a small USB hard disk enclosure and would like to start
>> > using it to transfer files between OS X and FreeBSD machines.
>> >
>> > Is there a filesystem that both OS X and FreeBSD can reliably
>> > read and write to? I've heard that OS X supports UFS, but there's
>> > no clear definition on what UFS actually is. I mean Free/Open/Net/
>> > DragonFly all seem to have slightly differing definitions...
>> >
>> > Any ideas?
>> > MC
>> >
>> > (please cc: as I'm not subscribed)
>> My recommendation would be to use *gasp* FAT32 for the file system.
>> This allows you FreeBSD/MacOSX/Linux/ and the occasional Windows
>> support when you eventually need it.  If you only need OS X/FreeBSD
>> support, UFS is safe.  IIRC, UFS2 is safe, as well.  I've got a drive
>> I'm using that I think is UFS2 formatted.  I'd check, but it's at the
>> office.
> Hi.
> Ok, I'll give it a go on an empty drive and see what happens.
> Would you recommend formatting the drive on an OS X machine, or
> a FreeBSD machine (or is it irrelevant)?
> thanks,
> MC
I'd do it on the FreeBSD machine. IIRC Mac OSX did some funky stuff with 
the MBR / slices when formatting disks.

More information about the freebsd-questions mailing list