From owner-freebsd-hackers@FreeBSD.ORG  Fri Nov  9 00:34:11 2012
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 2EFA6A42
 for <hackers@freebsd.org>; Fri,  9 Nov 2012 00:34:11 +0000 (UTC)
 (envelope-from doconnor@gsoft.com.au)
Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10])
 by mx1.freebsd.org (Postfix) with ESMTP id 98AE78FC08
 for <hackers@freebsd.org>; Fri,  9 Nov 2012 00:34:10 +0000 (UTC)
Received: from ur.dons.net.au (ppp118-210-218-164.lns20.adl6.internode.on.net
 [118.210.218.164]) (authenticated bits=0)
 by cain.gsoft.com.au (8.14.4/8.14.3) with ESMTP id qA90Xtuk060298
 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO);
 Fri, 9 Nov 2012 11:04:01 +1030 (CST)
 (envelope-from doconnor@gsoft.com.au)
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0 (Mac OS X Mail 6.2 \(1499\))
Subject: Re: Custom FreeBSD usb memstick
From: "Daniel O'Connor" <doconnor@gsoft.com.au>
In-Reply-To: <CAOFF+Z38yKaproZZmr57fA71RhbZNBo1bApPtTzbOM_Dk3MEgQ@mail.gmail.com>
Date: Fri, 9 Nov 2012 11:03:55 +1030
Content-Transfer-Encoding: quoted-printable
Message-Id: <BD8160AB-1835-432D-A580-C51B227755BA@gsoft.com.au>
References: <CAOFF+Z38yKaproZZmr57fA71RhbZNBo1bApPtTzbOM_Dk3MEgQ@mail.gmail.com>
To: "Sam Fourman Jr." <sfourman@gmail.com>
X-Mailer: Apple Mail (2.1499)
X-Spam-Score: 0.163 () BAYES_00,RDNS_DYNAMIC
X-Scanned-By: MIMEDefang 2.67 on 203.31.81.10
Cc: hackers@freebsd.org
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 09 Nov 2012 00:34:11 -0000


On 09/11/2012, at 8:37, Sam Fourman Jr. <sfourman@gmail.com> wrote:
> I have a interest in playing around with the scripts that create  the
> memstick image when you run make release...
> can anyone point me in the right direction, how would I go about
> modifying the size of the partition that gets created on the memstick
> image


It uses makefs to create an image that is just the right size for the =
files that are included.

I wrote a script that will format a given device and splat the installer =
stuff on it, ie
cat >make-usb.sh <<EOF
#!/bin/sh

set -e

PATH=3D/bin:/usr/bin:/sbin:/usr/sbin
export PATH

BLOCKSIZE=3D10240

if [ $# -lt 2 ]; then
  echo "$0 device src [path ..]"
  echo ""
  echo "For example"
  echo "$0 destdev srcdir extra1 extra2 ..."
  echo ""
  echo "For example.."
  echo "$0 /dev/da1 /usr/obj/usr/src/release/release =
/crypt/ros/system/install-os.sh /tmp/image.txz.*"
  echo ""
  echo "Note that srcdir must have a release built (we need the boot =
loader from it)"
  echo "If the path is a directory its contents will be copied"
  exit 1
fi

if [ ! -c "${1}" ]; then
  echo "${1} isn't a device"
  exit 1
fi

DEV=3D"${1}"

shift
SRC=3D"${1}"
shift
DIRS=3D"$@"

for d in $DIRS; do
  if [ ! -e "${d}" ]; then
    echo "${d} doesn't exist"
    exit 1
  fi
done

echo "WARNING WARNING WARNING WARNING WARNING WARNING"
echo "Continuing will destroy all data on ${DEV}"
echo "WARNING WARNING WARNING WARNING WARNING WARNING"
echo "Do you wish to continue? (y/n)"
read answer
if [ $answer !=3D "y" ]; then
  echo "Aborting"
  exit 0
fi

TMPDIR=3D`mktemp -d -q /tmp/makeusb.XXXXXX`
if [ $? -ne 0 ]; then
  echo "Unable to create temporary directory"
  exit 1
fi

mkdir "${TMPDIR}/mnt"

gpart destroy -F ${DEV} || echo -n
gpart create -s GPT ${DEV}
gpart add -t freebsd-boot -s 64K ${DEV}
gpart bootcode -b ${SRC}/boot/pmbr -p ${SRC}/boot/gptboot -i 1 ${DEV}
gpart add -t freebsd-ufs -l FreeBSD_Install ${DEV}

newfs "${DEV}p2"
mount "${DEV}p2" "${TMPDIR}/mnt"

tar -C "${SRC}" -cf - . | tar -C "${TMPDIR}/mnt" -xf -

for d in ${DIRS}; do
  if [ -d "${d}" ]; then
    tar -C "${d}" -cf - . | tar -C "${TMPDIR}/mnt" -xf -
  else
    cp -pRP "${d}" "${TMPDIR}/mnt"
  fi
done

echo '/dev/gpt/FreeBSD_Install / ufs ro,noatime 1 1' > =
${TMPDIR}/mnt/etc/fstab

sync

umount "${TMPDIR}/mnt"
rm -rf "${TMPDIR}"
EOF

The usage example is specific to my work - I have a big tarball full of =
preinstalled ports which the script copies to the USB key along with a =
script to install it, but you don't need that, just run..
sh ./make-usb.sh /dev/da1 /usr/obj/usr/src/release/release

(Obviously /dev/da1 should be your USB key, check dmesg etc etc)

--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C