Install OS from UDF for VBox

Lowell Gilbert freebsd-questions-local at
Tue Jun 30 18:02:13 UTC 2015

Paul Kraus <paul at> writes:

> An additional bit of info … if I put the DVD in the drive and use the
> VBox passthrough driver I can install from the DVD. I do not have DVD
> drives on all the host systems though.

Have you tried md(4)?

Something like "mdconfig -a -t vnode -f udf-image-file" should do it.

> On Jun 30, 2015, at 11:49, Paul Kraus <paul at> wrote:
>> Apologies if this is an answered question, but searching both online and my copies of this list have turned up nothing useful.
>> I am running a number of VBox environments under FBSD and need to be
>> able to install various OSes from ISO images that are UDF not
>> 9660+extensions. The specific ones I am running up against right now
>> include:
>> Ubunutu 14.04 LTS Server
>> Windows 8.1 Pro 
>> Windows Server 2012 R2
>> I am running FBSD 10.1 as current as possible for both OS and ports.
>> VBox tosses an error when I try to add the ISO image to the “CD”
>> drive. The error is VERR_NOT_SUPPORTED and my research has led me to
>> the conclusion that the problem is that these are UDF format ISO’s
>> (so that they may contain files larger than 2 GB). I also cannot
>> mount the ISO under FBSD using mount_udf, so they are a newer
>> version of UDF than mount_udf supports. I assume this is the crux of
>> the issue VBox is having, the underlying OS does not have support
>> for this version of the UDF spec.
>> Am I missing something obvious, like a port to add that support (I
>> tried sysutils/udfclient with no luck as well), or is this just a
>> feature that has not been added to FBSD (yet) ?
>> --
>> Paul Kraus
>> paul at
> --
> Paul Kraus
> paul at
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