From owner-freebsd-questions@freebsd.org  Sat Dec 19 20:03:25 2015
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Date: Sat, 19 Dec 2015 21:03:21 +0100
From: Polytropon <freebsd@edvax.de>
To: Lev <leventelist@gmail.com>
Cc: freebsd-questions@freebsd.org
Subject: Re: mounting udf
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On Sat, 19 Dec 2015 20:40:39 +0100, Lev wrote:
> I have
> 
> 10.2-RELEASE-p2
>  
> and I used 
> 
> mount /dev/cd0 /mnt

This command would raise the follow-up question of the corresponding
line in /etc/fstab. :-)



> same result with
> 
> mount -t udf /dev/cd0 /mnt
> 
> or
> 
> mount_udf /dev/cd0 /mnt
> 
> command.

Those are "the same".



> -r doesn't change anything. (mount_udf doesn't really have that option.)

You're right, read-only seems to be the default anyway.
But mount -r is still considered standard for read-only
optical media. :-)



> Ok. So should it work out of the box?

It should. Here's an example of FreeBSD 8-STABLE:

	# file -  < /dev/cd0
	/dev/stdin: UDF filesystem data (version 1.5)
		'IRON_SKY                       '

	# mount_udf /dev/cd0 /mnt

	# mount -v | grep "udf"
	/dev/cd0 on /mnt (udf, local, read-only)

	# df -h /mnt
	Filesystem    Size    Used   Avail Capacity  Mounted on
	/dev/cd0      7.9G    7.9G      0B   100%    /mnt

	# umount /mnt

Are you sure, _really_ sure you have a UDF medium? See my first
(quite stupid) command on how to verify.

It should also work with ATAPI. On my home system, I still have
the choice of using ATAPICAM (/dev/cd0) or ATAPI (/dev/acd0):

	# file -  < /dev/acd0
	/dev/stdin: UDF filesystem data (version 1.5)
		'IRON_SKY                       '

	# mount_udf /dev/acd0 /mnt

	# mount -v | grep "udf"
	/dev/acd0 on /mnt (udf, local, read-only)

	# df -h /mnt
	Filesystem    Size    Used   Avail Capacity  Mounted on
	/dev/acd0     7.9G    7.9G      0B   100%    /mnt

	# umount /mnt

However, on FreeBSD 10.2, ATAPI is no longer present.


-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...