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build_functions.sh
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build_functions.sh
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#!/bin/bash
# Bash script that creates a Debian rootfs or even a complete SD memory card for the Embedded Projects Gnublin board
# Should run on current Debian or Ubuntu versions
# Author: Ingmar Klein ([email protected])
# Created in scope of the "Embedded Linux" lecture, held by Professor Hubert Hoegl, at the University of Applied Sciences Augsburg, 2012
# This program (including documentation) is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License version 3 (GPLv3; http://www.gnu.org/licenses/gpl-3.0.html ) for more details.
#####################################
##### MAIN Highlevel Functions: #####
#####################################
### Preparation ###
prep_output()
{
mkdir -p ${output_dir} # main directory for the build process
if [ "$?" = "0" ]
then
echo "Output directory '${output_dir}' successfully created."
else
echo "ERROR while trying to create the output directory '${output_dir}'. Exiting now!"
exit 5
fi
mkdir ${output_dir}/tmp # subdirectory for all downloaded or local temporary files
if [ "$?" = "0" ]
then
echo "Subfolder 'tmp' of output directory '${output_dir}' successfully created."
else
echo "ERROR while trying to create the 'tmp' subfolder '${output_dir}/tmp'. Exiting now!"
exit 6
fi
}
### Rootfs Creation ###
build_rootfs()
{
check_n_install_prerequisites # see if all needed packages are installed and if the versions are sufficient
create_n_mount_temp_image_file # create the image file that is then used for the rootfs
do_debootstrap # run debootstrap (first and second stage)
disable_mnt_tmpfs # disable all entries in /etc/init.d trying to mount temporary filesystems (tmpfs), in order to save precious RAM
do_post_debootstrap_config # do some further system configuration
compress_debian_rootfs # compress the resulting rootfs
}
### SD-Card Creation ###
create_sd_card()
{
partition_n_format_disk # SD-card: make partitions and format
finalize_disk # copy the bootloader, rootfs and kernel to the SD-card
}
#######################################
##### MAIN lower level functions: #####
#######################################
# Description: Check if the user calling the script has the necessary priviliges
check_priviliges()
{
if [[ $UID -ne 0 ]]
then
echo "$0 must be run as root/superuser (sudo etc.)!
Please try again with the necessary priviliges."
exit 10
fi
}
# Description: Function to log and echo messages in terminal at the same time
fn_my_echo()
{
if [ -d ${output_dir} ]
then
echo "`date`: ${1}" >> ${output_dir}/log.txt
echo "${1}"
else
echo "Output directory '${output_dir}' doesn't exist. Exiting now!"
exit 11
fi
}
# Description: See if the needed packages are installed and if the versions are sufficient
check_n_install_prerequisites()
{
fn_my_echo "Installing some packages, if needed."
if [ "${host_os}" = "Debian" ]
then
apt_prerequisites=${apt_prerequisites_debian}
elif [ "${host_os}" = "Ubuntu" ]
then
apt_prerequisites=${apt_prerequisites_ubuntu}
else
fn_my_echo "OS-Type '${host_os}' not correct.
Please run 'build_debian_system.sh --help' for more information"
exit 12
fi
fn_my_echo "Running 'apt-get update' to get the latest package dependencies."
if [ "$?" = "0" ]
then
fn_my_echo "'apt-get update' ran successfully! Continuing..."
else
fn_my_echo "ERROR while trying to run 'apt-get update'. Exiting now."
exit 13
fi
set -- ${apt_prerequisites}
while [ $# -gt 0 ]
do
dpkg -l |grep "ii ${1}" >/dev/null
if [ "$?" = "0" ]
then
fn_my_echo "Package '${1}' is already installed. Nothing to be done."
else
fn_my_echo "Package '${1}' is not installed yet.
Trying to install it now!"
if [ ! "${apt_get_update_done}" = "true" ]
then
apt-get update
apt_get_update_done="true"
fi
apt-get install -y ${1}
if [ "$?" = "0" ]
then
fn_my_echo "'${1}' installed sueccessfully!"
else
fn_my_echo "ERROR while trying to install '${1}'."
if [ "${host_os}" = "Ubuntu" ] && [ "${1}" = "qemu-system" ]
then
fn_my_echo "Assuming that you are running this on Ubuntu 10.XX, where the package 'qemu-system' doesn't exist.
If your host system is not Ubuntu 10.XX based, this could lead to errors. Please check!"
else
fn_my_echo "Exiting now!"
exit 14
fi
fi
fi
if [ $1 = "qemu-user-static" ]
then
sh -c "dpkg -l|grep "qemu-user-static"|grep "1."" >/dev/null
if [ $? = "0" ]
then
fn_my_echo "Sufficient version of package '${1}' found. Continueing..."
else
fn_my_echo "The installed version of package '${1}' is too old.
You need to install a package with a version of at least 1.0.
For example from the debian-testing ('http://packages.debian.org/search?keywords=qemu&searchon=names&suite=testing§ion=all')
respectivly the Ubuntu precise ('http://packages.ubuntu.com/search?keywords=qemu&searchon=names&suite=precise§ion=all') repositiories.
Exiting now!"
exit 15
fi
fi
shift
done
fn_my_echo "Function 'check_n_install_prerequisites' DONE."
}
# Description: Create a image file as root-device for the installation process
create_n_mount_temp_image_file()
{
fn_my_echo "Creating the temporary image file for the debootstrap process."
dd if=/dev/zero of=${output_dir}/${output_filename}.img bs=1M count=${work_image_size_MB}
if [ "$?" = "0" ]
then
fn_my_echo "File '${output_dir}/${output_filename}.img' successfully created with a size of ${work_image_size_MB}MB."
else
fn_my_echo "ERROR while trying to create the file '${output_dir}/${output_filename}.img'. Exiting now!"
exit 16
fi
fn_my_echo "Formatting the image file with the ext3 filesystem."
mkfs.ext3 -F ${output_dir}/${output_filename}.img
if [ "$?" = "0" ]
then
fn_my_echo "ext3 filesystem successfully created on '${output_dir}/${output_filename}.img'."
else
fn_my_echo "ERROR while trying to create the ext3 filesystem on '${output_dir}/${output_filename}.img'. Exiting now!"
exit 17
fi
fn_my_echo "Creating the directory to mount the temporary filesystem."
mkdir -p ${output_dir}/mnt_debootstrap
if [ "$?" = "0" ]
then
fn_my_echo "Directory '${output_dir}/mnt_debootstrap' successfully created."
else
fn_my_echo "ERROR while trying to create the directory '${output_dir}/mnt_debootstrap'. Exiting now!"
exit 18
fi
fn_my_echo "Now mounting the temporary filesystem."
mount ${output_dir}/${output_filename}.img ${output_dir}/mnt_debootstrap -o loop
if [ "$?" = "0" ]
then
fn_my_echo "Filesystem correctly mounted on '${output_dir}/mnt_debootstrap'."
else
fn_my_echo "ERROR while trying to mount the filesystem on '${output_dir}/mnt_debootstrap'. Exiting now!"
exit 19
fi
fn_my_echo "Function 'create_n_mount_temp_image_file' DONE."
}
# Description: Run the debootstrap steps, like initial download, extraction plus configuration and setup
do_debootstrap()
{
fn_my_echo "Running first stage of debootstrap now."
debootstrap --verbose --arch armel --variant=minbase --foreign ${debian_target_version} ${output_dir}/mnt_debootstrap ${debian_mirror_url}
if [ "$?" = "0" ]
then
fn_my_echo "Debootstrap 1st stage finished successfully."
else
fn_my_echo "ERROR while trying to run the first stage of debootstrap. Exiting now!"
regular_cleanup
exit 20
fi
modprobe binfmt_misc
cp /usr/bin/qemu-arm-static ${output_dir}/mnt_debootstrap/usr/bin
mkdir -p ${output_dir}/mnt_debootstrap/dev/pts
fn_my_echo "Mounting both /dev/pts and /proc on the temporary filesystem."
mount devpts ${output_dir}/mnt_debootstrap/dev/pts -t devpts
mount -t proc proc ${output_dir}/mnt_debootstrap/proc
fn_my_echo "Entering chroot environment NOW!"
fn_my_echo "Starting the second stage of debootstrap now."
/usr/sbin/chroot ${output_dir}/mnt_debootstrap /bin/bash -c "
/debootstrap/debootstrap --second-stage 2>>/deboostrap_stg2_errors.txt
cd /root 2>>/deboostrap_stg2_errors.txt
cat <<END > /etc/apt/sources.list 2>>/deboostrap_stg2_errors.txt
deb http://ftp.de.debian.org/debian ${debian_target_version} main contrib non-free
deb-src http://ftp.de.debian.org/debian ${debian_target_version} main contrib non-free
deb http://ftp.debian.org/debian/ ${debian_target_version}-updates main contrib non-free
deb-src http://ftp.debian.org/debian/ ${debian_target_version}-updates main contrib non-free
deb http://security.debian.org/ ${debian_target_version}/updates main contrib non-free
deb-src http://security.debian.org/ ${debian_target_version}/updates main contrib non-free
END
apt-get update
mkdir -p /dev/bus/usb/001/
for k in {0..9}; do mknod /dev/bus/usb/001/0\${k} c 189 \${k}; done;
for l in {10..31}; do mknod /dev/bus/usb/001/0\${l} c 189 \${l}; done;
mknod /dev/ttyS0 c 4 64 # for the serial console
mknod /dev/rtc0 c 254 0
mknod /dev/ramzswap0 b 254 0
mknod /dev/zram0 b 254 0
mknod -m 0666 /dev/mmcblk0p3 b 179 3 # SWAP
mknod /dev/sda b 8 0 # SCSI storage device
mknod /dev/sda1 b 8 1
mknod /dev/sda2 b 8 2
mknod /dev/sda3 b 8 3
mknod /dev/lpc313x_adc c 253 0
ln -s /dev/rtc0 /dev/rtc
cat <<END > /etc/network/interfaces
auto lo eth0
iface lo inet loopback
iface eth0 inet dhcp
END
echo gnublin-debian > /etc/hostname 2>>/deboostrap_stg2_errors.txt
echo \"127.0.0.1 localhost\" >> /etc/hosts 2>>/deboostrap_stg2_errors.txt
echo \"127.0.0.1 gnublin-debian\" >> /etc/hosts 2>>/deboostrap_stg2_errors.txt
echo \"nameserver ${nameserver_addr}\" > /etc/resolv.conf 2>>/deboostrap_stg2_errors.txt
cat <<END > /etc/rc.local 2>>/deboostrap_stg2_errors.txt
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will exit 0 on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
if [ -e /ramzswap_setup.sh ]
then
/ramzswap_setup.sh 2>/ramzswap_setup_log.txt && rm /ramzswap_setup.sh
fi
if [ -e /zram_setup.sh ]
then
/zram_setup.sh 2>/zram_setup_log.txt && rm /zram_setup.sh
fi
/setup.sh 2>/setup_log.txt && rm /setup.sh
exit 0
END
exit" 2>${output_dir}/chroot_1_log.txt
if [ "$?" = "0" ]
then
fn_my_echo "First part of chroot operations done successfully!"
else
fn_my_echo "Errors while trying to run the first part of the chroot operations."
fi
mount devpts ${output_dir}/mnt_debootstrap/dev/pts -t devpts
mount -t proc proc ${output_dir}/mnt_debootstrap/proc
if [ "${use_udev}" = "yes" ]
then
base_packages=${base_packages_with_udev}
fn_my_echo "Choosing packages, including udev."
elif [ "${use_udev}" = "no" ]
then
base_packages=${base_packages_no_udev}
fn_my_echo "Choosing packages, NOT including udev."
else
fn_my_echo "Incorrect setting for option 'use_udev' in 'general_settings.sh!
Please check! Exiting now!"
regular_cleanup
exit 21
fi
/usr/sbin/chroot ${output_dir}/mnt_debootstrap /bin/sh -c "
export LANG=C 2>>/deboostrap_stg2_errors.txt
apt-get -y install ${base_packages} 2>>/deboostrap_stg2_errors.txt
cat <<END > /etc/apt/apt.conf 2>>/deboostrap_stg2_errors.txt
APT::Install-Recommends \"0\";
APT::Install-Suggests \"0\";
END
apt-get -y -d install ${additional_packages} 2>>/deboostrap_stg2_errors.txt
sed -i 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/g' /etc/locale.gen 2>>/deboostrap_stg2_errors.txt # enable locale
locale-gen 2>>/deboostrap_stg2_errors.txt
export LANG=en_US.UTF-8 2>>/deboostrap_stg2_errors.txt # language settings
export LC_ALL=en_US.UTF-8 2>>/deboostrap_stg2_errors.txt
export LANGUAGE=en_US.UTF-8 2>>/deboostrap_stg2_errors.txt
cat <<END > /etc/fstab 2>>/deboostrap_stg2_errors.txt
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/root / ext3 noatime,errors=remount-ro 0 1
/dev/mmcblk0p3 none swap defaults 0 0
END
update-rc.d -f mountoverflowtmp remove 2>>/deboostrap_stg2_errors.txt
echo 'T0:2345:respawn:/sbin/mingetty ttyS0 115200 vt102' >> /etc/inittab 2>>/deboostrap_stg2_errors.txt # enable serial consoles
sed -i 's/^\([1-6]:.* tty[1-6]\)/#\1/' /etc/inittab 2>>/deboostrap_stg2_errors.txt # disable virtual consoles
exit
" 2>${output_dir}/chroot_2_log.txt
if [ "$?" = "0" ]
then
fn_my_echo "Second part of chroot operations done successfully!"
else
fn_my_echo "Errors while trying to run the second part of the chroot operations."
fi
sleep 5
umount_img sys
fn_my_echo "Just exited chroot environment."
fn_my_echo "Base debootstrap steps 1&2 are DONE!"
}
# Description: Do some further configuration of the system, after debootstrap has finished
do_post_debootstrap_config()
{
fn_my_echo "Now starting the post-debootstrap configuration steps."
mkdir -p ${output_dir}/qemu-kernel
get_n_check_file "${std_kernel_pkg_path}" "${std_kernel_pkg_name}" "standard_kernel" "${output_dir}/tmp"
get_n_check_file "${qemu_kernel_pkg_path}" "${qemu_kernel_pkg_name}" "qemu_kernel" "${output_dir}/tmp"
tar_all extract "${output_dir}/tmp/${qemu_kernel_pkg_name}" "${output_dir}/qemu-kernel"
sleep 3
tar_all extract "${output_dir}/tmp/${std_kernel_pkg_name}" "${output_dir}/mnt_debootstrap"
cp -ar ${output_dir}/qemu-kernel/lib/ ${output_dir}/mnt_debootstrap # copy the qemu kernel modules intot the rootfs
if [ "${use_ramzswap}" = "yes" ]
then
echo "#!/bin/sh
cat <<END > /etc/rc.local 2>>/ramzswap_setup_errors.txt
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will exit 0 on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
modprobe ${ramzswap_kernel_module_name} num_devices=1 disksize_kb=${ramzswap_size_kb}
swapon -p 100 /dev/ramzswap0
exit 0
END
exit 0" > ${output_dir}/mnt_debootstrap/ramzswap_setup.sh
chmod +x ${output_dir}/mnt_debootstrap/ramzswap_setup.sh
fi
if [ "${use_zram}" = "yes" ]
then
echo "#!/bin/sh
cat <<END > /etc/rc.local 2>>/zram_setup_errors.txt
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will exit 0 on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
modprobe ${zram_kernel_module_name} zram_num_devices=1
sleep 2
echo ${zram_size_B} > /sys/block/zram0/disksize
mkswap /dev/zram0
swapon -p 100 /dev/zram0
exit 0
END
exit 0" > ${output_dir}/mnt_debootstrap/zram_setup.sh
chmod +x ${output_dir}/mnt_debootstrap/zram_setup.sh
fi
echo "
########################################################
#//__ __ _ _ \\#
## \ \ / /___ | | __ ___ _ __ ___ | |_ ___ ##
## \ \/\/ // -_)| |/ _|/ _ \| ' \ / -_) | _|/ _ \ ##
## \_/\_/ \___||_|\__|\___/|_|_|_|\___| \__|\___/ ##
## _____ _ _ _ _ ____ _ _____ _ _ ##
## / ____| \ | | | | | _ \| | |_ _| \ | | ##
## | | __| \| | | | | |_) | | | | | \| | ##
## | | |_ | . \` | | | | _ <| | | | | . \` | ##
## | |__| | |\ | |__| | |_) | |____ _| |_| |\ | ##
## \_____|_| \_|\____/|____/|______|_____|_| \_| ##
## _____ _ _ ##
## | __ \ | | (_) ##
## | | | | ___ | |__ _ __ _ _ __ ##
## | | | | / _ \| '_ \ | | / _\` || '_ \ ##
## | |__| || __/| |_) || || (_| || | | | ##
## |_____/ \___||_.__/ |_| \__,_||_| |_| ##
#\\ //#
########################################################
" >> ${output_dir}/mnt_debootstrap/etc/motd.tail
date_cur=`date` # needed further down as a very important part to circumvent the PAM Day0 change password problem
echo "#!/bin/sh
date -s \"${date_cur}\" 2>>/post_deboostrap_errors.txt # set the system date to prevent PAM from exhibiting its nasty DAY0 forced password change
apt-get install -y ${additional_packages} 2>>/post_debootstrap_apt_errors.txt
apt-get clean
dpkg -l > /installed_packages.txt
if [ "${i2c_hwclock}" = "yes" ]
then
update-rc.d -f i2c_hwclock.sh start 02 S . stop 07 0 6 . 2>>/post_deboostrap_errors.txt
fi
cat <<END > /sbin/hotplug 2>>/post_deboostrap_errors.txt # entry for devices with firmware specifically
#!/bin/sh
HOTPLUG_FW_DIR=/lib/firmware
echo 1 > /sys/\\\${DEVPATH}/loading
cat \\\${HOTPLUG_FW_DIR}/\\\${FIRMWARE} > /sys/\\\${DEVPATH}/data
echo 0 > /sys/\\\${DEVPATH}/loading
END
chmod +x /sbin/hotplug
if [ "${use_ramzswap}" = "yes" ] || [ "${use_zram}" = "yes" ]
then
echo vm.swappiness=${vm_swappiness} >> /etc/sysctl.conf
fi
if [ ! -z `grep setup.sh /etc/rc.local` ]
then
cat <<END > /etc/rc.local 2>>/post_deboostrap_errors.txt
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will exit 0 on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
exit 0
END
fi
sh -c \"echo 'root
root
' | passwd root\" 2>>/post_deboostrap_errors.txt
passwd -u root 2>>/post_deboostrap_errors.txt
passwd -x -1 root 2>>/post_deboostrap_errors.txt
passwd -w -1 root 2>>/post_deboostrap_errors.txt
ldconfig
reboot 2>>/post_deboostrap_errors.txt
exit 0" > ${output_dir}/mnt_debootstrap/setup.sh
chmod +x ${output_dir}/mnt_debootstrap/setup.sh
if [ "${i2c_hwclock}" = "yes" ]
then
fn_my_echo "Setting up a script for being able to use the i2c-connected RTC (hardware clock)."
echo "#!/bin/sh
### BEGIN INIT INFO
# Provides: i2c-hwclock
# Required-Start: checkroot
# Required-Stop: $local_fs
# Default-Start: S
# Default-Stop: 0 6
### END INIT INFO
case \"\$1\" in
start)
if [ ! -e /dev/rtc0 ]
then
mknod /dev/rtc0 c 254 0
else
if [ ! -e /dev/rtc ]
then
ln -s /dev/rtc0 /dev/rtc
fi
fi
modprobe i2c-pnx
modprobe ${rtc_kernel_module_name}
echo ${i2c_hwclock_name} ${i2c_hwclock_addr} > /sys/bus/i2c/devices/i2c-1/new_device
/sbin/hwclock -s && echo \"Time successfully set from the RTC!\"
;;
stop|restart|reload|force-reload)
#echo ${i2c_hwclock_name} ${i2c_hwclock_addr} > /sys/bus/i2c/devices/i2c-1/delete_device
#modprobe -r rtc-ds1307
#modprobe -r i2c-pnx
;;
*)
echo \"Usage: i2c_hwclock.sh {start|stop}\"
echo \" start sets up kernel i2c-system for using the i2c-connected hardware (RTC) clock\"
echo \" stop unloads the driver module for the hardware (RTC) clock\"
return 1
;;
esac
exit 0" > ${output_dir}/mnt_debootstrap/etc/init.d/i2c_hwclock.sh
chmod +x ${output_dir}/mnt_debootstrap/etc/init.d/i2c_hwclock.sh
else
fn_my_echo "No RTC (hardware clock) setup. Continueing..."
fi
sed_search_n_replace "mkdir /lib/init/rw/sendsigs.omit.d/" "if [ ! -d /lib/init/rw/sendsigs.omit.d/ ]; then mkdir /lib/init/rw/sendsigs.omit.d/; fi;" ${output_dir}/mnt_debootstrap/etc/init.d/mountkernfs.sh
cat <<END > ${output_dir}/mnt_debootstrap/etc/network/interfaces
auto lo
iface lo inet loopback
END
sleep 1
umount_img all
if [ "$?" = "0" ]
then
fn_my_echo "Filesystem image file successfully unmounted. Ready to continue."
else
fn_my_echo "Error while trying to unmount the filesystem image. Exiting now!"
exit 22
fi
sleep 5
mount |grep "${output_dir}/mnt_debootstrap" > /dev/null
if [ ! "$?" = "0" ]
then
fn_my_echo "Starting the qemu environment now!"
qemu-system-arm -M versatilepb -cpu arm926 -no-reboot -kernel ${output_dir}/qemu-kernel/zImage -hda ${output_dir}/${output_filename}.img -m 256 -append "root=/dev/sda rootfstype=ext3 mem=256M devtmpfs.mount=0 rw ip=dhcp" 2>qemu_error_log.txt
else
fn_my_echo "ERROR! Filesystem is still mounted. Can't run qemu!"
exit 23
fi
fn_my_echo "Additional chroot system configuration successfully finished!"
}
# Description: Compress the resulting rootfs
compress_debian_rootfs()
{
fn_my_echo "Compressing the rootfs now!"
mount |grep ${output_dir}/${output_filename}.img >/dev/null
if [ ! "$?" = "0" ]
then
fsck.ext3 -fy ${output_dir}/${output_filename}.img
if [ "$?" = "0" ]
then
fn_my_echo "Temporary filesystem checked out, OK!"
else
fn_my_echo "ERROR: State of Temporary filesystem is NOT OK! Exiting now."
regular_cleanup
exit 24
fi
else
fn_my_echo "ERROR: Image file still mounted. Exiting now!"
regular_cleanup
exit 25
fi
mount ${output_dir}/${output_filename}.img ${output_dir}/mnt_debootstrap -o loop
if [ "$?" = "0" ]
then
rm -r ${output_dir}/mnt_debootstrap/lib/modules/2.6.33-gnublin-qemu-*/
cd ${output_dir}/mnt_debootstrap
if [ "${tar_format}" = "bz2" ]
then
tar_all compress "${output_dir}/${output_filename}.tar.${tar_format}" .
elif [ "${tar_format}" = "gz" ]
then
tar_all compress "${output_dir}/${output_filename}.tar.${tar_format}" .
else
fn_my_echo "Incorrect setting '${tar_format}' for the variable 'tar_format' in the general_settings.sh.
Please check! Only valid entries are 'bz2' or 'gz'. Could not compress the Rootfs!"
fi
cd ${output_dir}
sleep 5
else
fn_my_echo "ERROR: Image file could not be remounted correctly. Exiting now!"
regular_cleanup
exit 26
fi
umount ${output_dir}/mnt_debootstrap
sleep 10
mount | grep ${output_dir}/mnt_debootstrap > /dev/null
if [ ! "$?" = "0" ] && [ "${clean_tmp_files}" = "yes" ]
then
rm -r ${output_dir}/mnt_debootstrap
rm -r ${output_dir}/qemu-kernel
rm ${output_dir}/${output_filename}.img
elif [ "$?" = "0" ] && [ "${clean_tmp_files}" = "yes" ]
then
fn_my_echo "Directory '${output_dir}/mnt_debootstrap' is still mounted, so it can't be removed. Exiting now!"
regular_cleanup
exit 27
elif [ "$?" = "0" ] && [ "${clean_tmp_files}" = "no" ]
then
fn_my_echo "Directory '${output_dir}/mnt_debootstrap' is still mounted, please check. Exiting now!"
regular_cleanup
exit 28
fi
fn_my_echo "Rootfs successfully DONE!"
}
# Description: Get the SD-card device and than create the partitions and format them
partition_n_format_disk()
{
device=""
echo "Now listing all available devices:
"
while [ -z "${device}" ]
do
parted -l
echo "
Please enter the name of the SD-card device (eg. /dev/sdb) OR press ENTER to refresh the device list:"
read device
if [ -e ${device} ] && [ "${device:0:5}" = "/dev/" ]
then
umount ${device}*
mount |grep ${device}
if [ ! "$?" = "0" ]
then
echo "${device} partition table:"
parted -s ${device} unit MB print
echo "If you are sure that you want to repartition device '${device}', then type 'yes'.
Type anything else and/or hit Enter to cancel!"
read affirmation
if [ "${affirmation}" = "yes" ]
then
fn_my_echo "SD-card device set to '${device}', according to user input."
parted -s ${device} mklabel msdos
# first partition = root (rest of the drive size)
parted --align=opt -- ${device} unit MB mkpart primary ext3 1 -`expr ${size_boot_partition} + ${size_swap_partition}`
# second partition = boot (raw, size = ${size_boot_partition} )
parted -s --align=opt -- ${device} unit MB mkpart primary ext2 -`expr ${size_boot_partition} + ${size_swap_partition}` -${size_swap_partition}
parted -s -- ${device} set 2 boot on
# last partition = swap (swap, size = ${size_swap_partition} )
parted -s --align=opt -- ${device} unit MB mkpart primary linux-swap -${size_swap_partition} -0
echo ">>> ${device} Partition table is now:"
parted -s ${device} unit MB print
else
fn_my_echo "Action canceled by user. Exiting now!"
regular_cleanup
exit 29
fi
else
fn_my_echo "ERROR! Some partition on device '${device}' is still mounted. Exiting now!"
regular_cleanup
exit 30
fi
else
if [ ! -z "${device}" ] # in case of a refresh we don't want to see the error message ;-)
then
fn_my_echo "ERROR! Device '${device}' doesn't seem to be a valid device!"
fi
device=""
fi
done
if [ -e ${device}1 ] && [ -e ${device}2 ] && [ -e ${device}3 ]
then
mkfs.ext3 ${device}1 # ext3 on root partition
mkswap ${device}3 # swap
dd if=/dev/null of=${device}2 # raw for the boot (Apex bootloader) partition
fn_my_echo "Now setting the boot partition to type 'BootIt', using fdisk."
/sbin/fdisk ${device} << END
t
2
df
w
quit
END
else
fn_my_echo "ERROR: There should be 3 partitions on '${device}', but one or more seem to be missing.
Exiting now!"
regular_cleanup
exit 31
fi
sleep 1
partprobe
sleep 1
dev_str=`sudo fdisk -l |grep BootIt`
if [ "${dev_str:0:8}" = "${device}" ]
then
fn_my_echo "SD-card boot partition successfully set to type 'BootIt'."
else
fn_my_echo "ERROR! SD-card boot partition doesn't seem to have type 'BootIt'. Exiting now!"
regular_cleanup
exit 32
fi
}
# Description: Copy bootloader, rootfs and kernel to the SD-card and then unmount it
finalize_disk()
{
# Copy bootloader to the boot partition
fn_my_echo "Getting the bootloader and trying to copy it to the boot partition, now!"
get_n_check_file "${bootloader_bin_path}" "${bootloader_bin_name}" "bootloader_binary" "${output_dir}/tmp"
if [ -e ${device} ] && [ "${device:0:5}" = "/dev/" ]
then
umount ${device}*
mount |grep ${device}
if [ ! "$?" = "0" ]
then
if [ -e "${output_dir}/tmp/${bootloader_bin_name}" ]
then
dd if=${output_dir}/tmp/${bootloader_bin_name} of=${device}2
if [ "$?" = "0" ]
then
fn_my_echo "Bootloader successfully copied to SD-card ('${device}')!"
else
fn_my_echo "ERROR while trying to copy the bootloader '${bootloader_bin_path}/${bootloader_bin_name}' to the device '${device}2'."
fi
else
fn_my_echo "ERROR! Bootloader binary '${bootloader_bin_name}' doesn't seem to exist in directory '${output_dir}/tmp/'.
You won't be able to boot the card, without copying the file to the second partition."
fi
else
fn_my_echo "ERROR! Some partition on device '${device}' is still mounted. Exiting now!"
fi
else
fn_my_echo "ERROR! Device '${device}' doesn't seem to exist!
Exiting now"
regular_cleanup
exit 33
fi
# unpack the filesystem and kernel to the root partition
fn_my_echo "Now unpacking the rootfs to the SD-card's root partition!"
mkdir ${output_dir}/sd-card
if [ "$?" = "0" ]
then
fsck -fy ${device}1 # just to be sure
mount ${device}1 ${output_dir}/sd-card
if [ "$?" = "0" ]
then
if [ -e ${output_dir}/${output_filename}.tar.${tar_format} ]
then
tar_all extract "${output_dir}/${output_filename}.tar.${tar_format}" "${output_dir}/sd-card"
else
fn_my_echo "ERROR: File '${output_dir}/${output_filename}.tar.${tar_format}' doesn't seem to exist. Exiting now!"
regular_cleanup
exit 34
fi
sleep 1
else
fn_my_echo "ERROR while trying to mount '${device}1' to '${output_dir}/sd-card'. Exiting now!"
regular_cleanup
exit 35
fi
else
fn_my_echo "ERROR while trying to create the temporary directory '${output_dir}/sd-card'. Exiting now!"
regular_cleanup
exit 36
fi
sleep 3
fn_my_echo "Unmounting the SD-card now."
umount ${output_dir}/sd-card
sleep 3
fn_my_echo "Running fsck to make sure the filesystem on the card is fine."
fsck -fy ${device}1 # final check
if [ "$?" = "0" ]
then
fn_my_echo "SD-card successfully created!
You can remove the card now and try it in your gnublin-board.
ALL DONE!"
else
fn_my_echo "ERROR! Filesystem check on your card returned an error status. Maybe your card is going bad, or something else went wrong."
fi
rm -r ${output_dir}/tmp
rm -r ${output_dir}/sd-card
}
#############################
##### HELPER Functions: #####
#############################
# Description: Helper funtion for all tar-related tasks
tar_all()
{
if [ "$1" = "compress" ]
then
if [ -d "${2%/*}" ] && [ -e "${3}" ]
then
if [ "${2:(-8)}" = ".tar.bz2" ]
then
tar -cpjvf "${2}" "${3}"
elif [ "${2:(-7)}" = ".tar.gz" ]
then
tar -cpzvf "${2}" "${3}"
else
fn_my_echo "ERROR! Created files can only be of type '.tar.gz', or '.tar.bz2'! Exiting now!"
regular_cleanup
exit 37
fi
else
fn_my_echo "ERROR! Illegal arguments '$2' and/or '$3'. Exiting now!"
regular_cleanup
exit 38
fi
elif [ "$1" = "extract" ]
then
if [ -e "${2}" ] && [ -d "${3}" ]
then
if [ "${2:(-8)}" = ".tar.bz2" ]
then
tar -xpjvf "${2}" -C "${3}"
elif [ "${2:(-7)}" = ".tar.gz" ]
then
tar -xpzvf "${2}" -C "${3}"
else
fn_my_echo "ERROR! Can only extract files of type '.tar.gz', or '.tar.bz2'!
'${2}' doesn't seem to fit that requirement. Exiting now!"
regular_cleanup
exit 39
fi
else
fn_my_echo "ERROR! Illegal arguments '$2' and/or '$3'. Exiting now!"
regular_cleanup
exit 40
fi
else
fn_my_echo "ERROR! The first parameter needs to be either 'compress' or 'extract', and not '$1'. Exiting now!"
regular_cleanup
exit 41
fi
}
# Description: Helper function to completely or partially unmount the image file when and where needed
umount_img()
{
if [ "${1}" = "sys" ]
then
mount | grep "${output_dir}" > /dev/null
if [ "$?" = "0" ]
then
fn_my_echo "Virtual Image still mounted. Trying to umount now!"
umount ${output_dir}/mnt_debootstrap/sys > /dev/null
umount ${output_dir}/mnt_debootstrap/dev/pts > /dev/null
umount ${output_dir}/mnt_debootstrap/proc > /dev/null
fi
mount | egrep '(${output_dir}/mnt_debootstrap/sys|${output_dir}/mnt_debootstrap/proc|${output_dir}/mnt_debootstrap/dev/pts)' > /dev/null
if [ "$?" = "0" ]
then
fn_my_echo "ERROR! Something went wrong. All subdirectories of '${output_dir}' should have been unmounted, but are not."
else
fn_my_echo "Virtual image successfully unmounted."
fi
elif [ "${1}" = "all" ]
then
mount | grep "${output_dir}" > /dev/null
if [ "$?" = "0" ]
then
fn_my_echo "Virtual Image still mounted. Trying to umount now!"
umount ${output_dir}/mnt_debootstrap/sys > /dev/null
umount ${output_dir}/mnt_debootstrap/dev/pts > /dev/null
umount ${output_dir}/mnt_debootstrap/proc > /dev/null
umount ${output_dir}/mnt_debootstrap/ > /dev/null
fi
mount | grep "${output_dir}" > /dev/null
if [ "$?" = "0" ]
then
fn_my_echo "ERROR! Something went wrong. '${output_dir}' should have been unmounted, but isn't."
else
fn_my_echo "Virtual image successfully unmounted."
fi
else
fn_my_echo "ERROR! Wrong parameter. Only 'sys' and 'all' allowed when calling 'umount_img'."
fi