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Date: Fri, 16 May 2008 10:48:04 -0600
From: Scott Long <scottl@samsco.org>
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To: Jeremy Chadwick <koitsu@freebsd.org>
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Cc: Zoran Kolic <zkolic@sbb.co.yu>, freebsd-stable@freebsd.org,
	Stefan Lambrev <stefan.lambrev@moneybookers.com>
Subject: Re: udf
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Jeremy Chadwick wrote:
> On Fri, May 16, 2008 at 07:08:11PM +0300, Stefan Lambrev wrote:
>> From man mount_udf (FreeBSD7)
>>
>> HISTORY
>>     The mount_udf utility first appeared in FreeBSD 5.0.
>>
>> FreeBSD 7.0                     March 23, 2002                     FreeBSD 
>> 7.0
>>
>> I have no idea for newfs_udf , and what is supposed this to do :)
> 
> It creates a UDF (commonly DVD/DVD Audio) filesystem.  NetBSD and
> Solaris 10 both have this.
> 

There is no write support in UDF in FreeBSD.  When I wrote the fs code,
packet writing was the only way to do discrete writes, and it's very
hard to make that work with a traditional VM system.  Now with DVD+R,
it's probably worth someone's time to look at it (though the append-only
nature of +R means that there are still some nasty VM complications to
deal with).  Until that happens, mkisofs can be used to create a static
UDF filesystem.

Scott