Ubuntu Core Installer

ubuntu_core_installer.sh

#!/bin/bash

#
# Ubuntu core filesystem makerer
#
# http://www.omappedia.com/wiki/OMAP_Ubuntu_Core
#

set -e

TEST=1

if [ $TEST -eq 1 ]; then
  TMPDIR=`pwd`/tmp
  BOOTFS=`pwd`/boot
  ROOTFS=`pwd`/root
  mkdir -p $TMPDIR $BOOTFS $ROOTFS
else
  TMPDIR=`mktemp -d`
  BOOTFS=/media/boot
  ROOTFS=/media/root
fi

UBUNAME=saucy
UBUVER=13.10

die() {
  echo $* >&2
  exit 1
}

[ -d $BOOTFS ] || "Boot FS $BOOTFS doesn't exist!"
[ -d $ROOTFS ] || "Root FS $ROOTFS doesn't exist!"

cd $TMPDIR

#
echo Installing pre-reqs...
#
apt-get install -y u-boot-tools

#
echo Making the boot script...
#
cat > boot.script <<EOF
fatload mmc 0:1 0x80000000 uImage
setenv bootargs rw vram=32M fixrtc mem=1G@0x80000000 root=/dev/mmcblk0p2 console=ttyO2,115200n8 rootwait
bootm 0x80000000
EOF

#
echo Compiling the .script file in to a usable .scr file?
#
mkimage -A arm -T script -C none -n "Boot Image" -d boot.script boot.scr

#
echo Downloading required files...
#
wget -c http://cdimage.ubuntu.com/ubuntu-core/releases/${UBUVER}/release/ubuntu-core-${UBUVER}-core-armhf.tar.gz
wget -c http://ports.ubuntu.com/ubuntu-ports/dists/${UBUNAME}/main/installer-armhf/current/images/omap4/netboot/MLO
wget -c http://ports.ubuntu.com/ubuntu-ports/dists/${UBUNAME}/main/installer-armhf/current/images/omap4/netboot/u-boot.bin
wget -c http://ports.ubuntu.com/ubuntu-ports/dists/${UBUNAME}/main/installer-armhf/current/images/omap4/netboot/uImage

#
echo Copying boot files...
#

cp MLO u-boot.bin uImage boot.script boot.scr $BOOTFS/

#
echo Extracting rootfs contents...
#

cd $ROOTFS
TARFILE=$TMPDIR/ubuntu-core-${UBUVER}-core-armhf.tar.gz

[ -f "$TARFILE" ] || die "I was looking for file $TARFILE but I can't find it"

if which pv >/dev/null; then
  pv "$TARFILE" | sudo tar --numeric-owner -xz
else
  echo "I would show progress if 'pv' was installed..."
  tar --numeric-owner -xzf "$TARFILE"
fi

echo You can probably clean up $TMPDIR if you want to

#
echo Enabling serial on boot...
#

cat > $ROOTFS/etc/init/serial-auto-detect-console.conf <<EOF
# serial-auto-detect-console - starts getty on serial console
#
# This service starts a getty on the serial port given in the 'console' kernel argument.
#

start on runlevel [23]
stop on runlevel [!23]

respawn

exec /bin/sh /bin/serial-console
EOF

cat > $ROOTFS/bin/serial-console <<'EOF'
for arg in $(cat /proc/cmdline)
do
    case $arg in
        console=*)
            tty=${arg#console=}
            tty=${tty#/dev/}
 
            case $tty in
                tty[a-zA-Z]* )
                    PORT=${tty%%,*}
 
                    # check for service which do something on this port
                    if [ -f /etc/init/$PORT.conf ];then continue;fi 
 
                    tmp=${tty##$PORT,}
                    SPEED=${tmp%%n*}
                    BITS=${tmp##${SPEED}n}
 
                    # 8bit serial is default
                    [ -z $BITS ] && BITS=8
                    [ 8 -eq $BITS ] && GETTY_ARGS="$GETTY_ARGS -8 "
 
                    [ -z $SPEED ] && SPEED='115200,57600,38400,19200,9600'
 
                    GETTY_ARGS="$GETTY_ARGS $SPEED $PORT"
                    exec /sbin/getty $GETTY_ARGS
            esac
    esac
done
EOF
chmod 0755 $ROOTFS/bin/serial-console

#
echo Blanking out the root password in $ROOTFS/etc/shadow ...
#

sed -i 's/root:\*:/root::/' $ROOTFS/etc/shadow

#
echo Setting up networking in $ROOTFS/etc/network/interfaces.d ...
#
cat > $ROOTFS/etc/network/interfaces.d/eth0-dhcp <<EOF
auto eth0
iface eth0 inet dhcp
EOF

#
echo Flushing buffers...
#

sync

echo Done

Card needs to be partitioned, formatted and mounted before this is run:

• http://www.omappedia.com/wiki/SD_Configuration#Step_by_Step_Instructions_to_format_SD_card

fdisk /dev/sdX
# ...
mount /dev/sdX1 boot
mount /dev/sdX2 root
wget -o installer.sh https://gist.githubusercontent.com/porty/9248106/raw
chmod +x installer.sh
./installer.sh
umount /dev/sdX1 /dev/sdX2
eject /dev/sdX

http://qt-project.org/wiki/TIPandaBoard

Fucking serial isn't working - firmware/kernel/getty is all displayed, I just can't fucking log in!