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Date: Fri, 26 Nov 2010 23:46:56 +0200
From: Andriy Gapon <avg@freebsd.org>
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To: Alexander Best <arundel@freebsd.org>
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Cc: freebsd-current@freebsd.org
Subject: Re: two issues with cdfs
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on 26/11/2010 21:08 Alexander Best said the following:
> On Fri Nov 26 10, Andriy Gapon wrote:
>> on 26/11/2010 00:25 Alexander Best said the following:
>>> hi there,
>>>
>>> i've tripped over two issues with the cdfs:
>>
>> What's cdfs? :-/
>>
>>> 1) take a > 4 GB example.file
>>> 2) do `mkisofs -iso-level 4 -input-charset ISO-8859-15 -V "Test 1" -o new.iso example.file`
>>> 3) mdconfig -a -t vnode -f new.iso
>>> 4) mount -t cd9660 /dev/mdX /some/place
>>>
>>> the resulting file size is only 3115015779 bytes, although it should be
>>> 7409981027 bytes (in my case).
>>>
>>> the second issue:
>>>
>>> 1) take a > 4 GB file
>>> 2) do `mkisofs -iso-level 4 -J -r -input-charset ISO-8859-15 -V "Test 2" -o new.iso example.file`
>>> 3) mdconfig -a -t vnode -f new.iso
>>> 4) mount -t cd9660 /dev/mdX /some/place
>>>
>>> there are 2 files with the same indode. the file size is 4294965248 bytes,
>>> although it should be 7409981027 bytes (in my case).
>>
>> Likely we don't support multi-extent files at the moment.
> 
> at the moment? ;) any plans for the future?

Plans/hopes etc. We haven't reached perfection yet, so no eternal code freeze yet.

> does this limit also apply to
> blueray or does it use a different fs?

Not sure, never had one in my hands.

> udf support in FreeBSD is also quite
> limited.

True.  Port of NetBSD UDF is in project ideas.

-- 
Andriy Gapon