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Date:      Sun, 31 Dec 2006 02:38:34 +0300
From:      "Andrew Pantyukhin" <>
To:        Steve <>
Subject:   Re: how to mount an already freebsd paritioned external usb drive onto a new freebsd install
Message-ID:  <>
In-Reply-To: <>
References:  <>

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On 12/31/06, Steve <> wrote:
> Hi,
> I was running FreebBSD 5.x until a few days ago at home on a little shuttle
> cube server with a celeron processor when my hard drive appeared to develop
> multiple problems and finally died.  I had a western digital external usb
> hard drive attached to the server that I used for daily backups.  So I got
> a new hard drive and installeed FreeBSD 6.1 on it.  I have plugged in the
> WD external usb drive and ran:
> dmesg
> camcontrol devlist
> And the WD usb drive seems to recognized by the system and all is
> well.  The WD usb drive has a freebsd partition on it already.  I want to
> mount this drive so I can start to move backed up data to the new box, but
> reading through the handbook and doing a google search, I'm still not clear
> exactly how to do it.  I don't remember how I had setup the old box to
> mount the drive as I had done it almost two years ago.
> If someone can tell me what to do or point me in the right direction it
> would be appreciated.  I really don't want to mess this up.

Assuming the drive you want to mount is /dev/da0, you
should first determine what slices and partitions it
has. It's very easy, just "ls /dev/da0*" for that. Let's
pretend you see something like this:


It might be a lot simpler or a lot more complicated. This
exact result means you have one slice (s1) and several
partitions (a-e). "b" is a swap partition, "c" represents
the whole slice, you only have to mount "a", "d" and "e".

mkdir -p /mnt/a /mnt/d /mnt/e
mount /dev/da0s1a /mnt/a
mount /dev/da0s1d /mnt/d
mount /dev/da0s1e /mnt/e

Use "mount -r" instead of just "mount" to make them read-
only (for safety).

Good luck!

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