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Date:      Fri, 18 May 2001 10:52:34 +0300
From:      Giorgos Keramidas <keramidi@otenet.gr>
To:        Georgi Tyuliev <tyuliev@bas.bg>
Cc:        FreeBSD-questions@FreeBSD.ORG
Subject:   Re: mount -o loop ...
Message-ID:  <20010518105234.A2798@hades.hell.gr>
In-Reply-To: <5.0.2.1.0.20010518103232.009f8370@argo.bas.bg>; from tyuliev@bas.bg on Fri, May 18, 2001 at 10:34:11AM %2B0300
References:  <5.0.2.1.0.20010518103232.009f8370@argo.bas.bg>

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On Fri, May 18, 2001 at 10:34:11AM +0300, Georgi Tyuliev wrote:
> 1. When I download an iso file, for example 4.3-install.iso, it is
>  > very simple in Linux to mount this file with a command like this:
>  > "mount -o loop 4.3-install.iso /opt" and you will se the
>  > installation CD. Is it possible to do this in FreeBSD?

You want to read the manpage of vnconfig(8).

A short crash-course in vnconfig usage would be:

1. Compile your kernel with support for Vnodes, adding the following
   to your kernel config.

	# Include support for Vnodes.
	pseudo-device	vn

2. Configure a vnode device to map to the image you want to mount.

	# vnconfig -c /dev/vn0c /path/to/your/image

3. Mount the Vnode you configured:

	# mount -t FSTYPE /dev/vn0c /mnt

Then, after unmounting the vnode later, you should disable and unconfigure the
Vnode by running:

	# vnconfig -u /dev/vn0c

For more options, and other parameters, see the manpage of vnconfig(8).

--giorgos

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