/
functions.sh
1489 lines (1332 loc) · 43.5 KB
/
functions.sh
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#!/bin/bash -e
#
# This script is alibrary of common functions used by the other scripts in the current directory
# It is meant to be sourced by the other scripts, NOT executed.
# Source it like this:
# source $(dirname "$0")/functions.sh
version_message="1.20200709: Fix v5.4.x eeprom read..."
emmcscript="cmdline=init=/opt/scripts/tools/eMMC/$(basename $0)"
#This is just a backup-backup-backup for old images...
#https://rcn-ee.com/repos/bootloader/am335x_evm/
http_spl="MLO-am335x_evm-v2019.04-r13"
http_uboot="u-boot-am335x_evm-v2019.04-r13.img"
set -o errtrace
trap _exit_trap EXIT
trap _err_trap ERR
_showed_traceback=f
_exit_trap() {
local _ec="$?"
if [[ $_ec != 0 && "${_showed_traceback}" != t ]]; then
_traceback 1
fi
reset_leds 'default-on' || true
}
_err_trap() {
local _ec="$?"
local _cmd="${BASH_COMMAND:-unknown}"
_traceback 1
_showed_traceback=t
echo "The command ${_cmd} exited with exit code ${_ec}." 1>&2
teardown_environment
reset_leds 'heartbeat' || true
inf_loop
}
_traceback() {
# Hide the _traceback() call.
local -i start=$(( ${1:-0} + 1 ))
local -i end=${#BASH_SOURCE[@]}
local -i i=0
local -i j=0
echo "Traceback (last called is first):" 1>&2
for ((i=${start}; i < ${end}; i++)); do
j=$(( $i - 1 ))
local function="${FUNCNAME[$i]}"
local file="${BASH_SOURCE[$i]}"
local line="${BASH_LINENO[$j]}"
echo " ${function}() in ${file}:${line}" 1>&2
done
}
__dry_run__(){
generate_line 80 '!'
echo_broadcast "! WARNING: ACTIVATED DRY RUN MODE"
echo_broadcast "! WARNING: THE DRY RUN MODE IS NOT REALLY SAFE"
echo_broadcast "! WARNING: IT IS GOING TO FAIL WITH IO TO FILES"
echo_broadcast "! WARNING: USE AT YOUR OWN RISK"
generate_line 80 '!'
empty_line
#This is useful when debugging scripts with potentially destructive commands
dd() {
echo "!!! Would run 'dd' with '$@'"
}
export -f dd
reboot() {
echo "!!! Would run 'reboot' with '$@'"
}
export -f reboot
modprobe() {
echo "!!! Would run 'modprobe' with '$@'"
}
export -f modprobe
mkfs.vfat() {
echo "!!! Would run 'mkfs.vfat' with '$@'"
}
export -f mkfs.vfat
mkfs.ext4() {
echo "!!! Would run 'mkfs.ext4' with '$@'"
}
export -f mkfs.ext4
mkfs.btrfs() {
echo "!!! Would run 'mkfs.btrfs' with '$@'"
}
export -f mkfs.btrfs
sfdisk() {
echo "!!! Would run 'sfdisk' with '$@'"
}
export -f sfdisk
mkdir() {
echo "!!! Would run 'mkdir' with '$@'"
}
export -f mkdir
rsync() {
echo "!!! Would run 'rsync' with '$@'"
}
export -f rsync
mount() {
echo "!!! Would run 'mount' with '$@'"
}
export -f mount
umount() {
echo "!!! Would run 'umount' with '$@'"
}
export -f umount
cp() {
echo "!!! Would run 'cp' with '$@'"
}
export -f cp
}
mmc_mount_fail() {
generate_line 80 '='
echo_broadcast "====> grep mmc"
dmesg | grep mmc || true
generate_line 40
echo_broadcast "====> ls /sys/class/block/"
ls -l /sys/class/block/ || true
generate_line 40
echo_broadcast "====> ls /dev/mmc*"
ls -l /dev/mmc* || true
generate_line 80 '='
}
try_vfat() {
echo_broadcast "====> Mounting ${boot_drive} Read Only over /boot/uboot (trying vfat)"
mount -t vfat ${boot_drive} /boot/uboot/ -o ro || mmc_mount_fail
}
prepare_environment() {
generate_line 80 '='
echo_broadcast "Prepare environment for flashing"
start_time=$(date +%s)
echo_broadcast "Starting at $(date --date="@$start_time")"
generate_line 40
echo_broadcast "==> Giving system time to stablize..."
countdown 5
echo_broadcast "==> Preparing /tmp"
mount -t tmpfs tmpfs /tmp
if [ -f /proc/sys/vm/min_free_kbytes ] ; then
echo_broadcast "==> Preparing sysctl"
value_min_free_kbytes=$(sysctl -n vm.min_free_kbytes)
echo_broadcast "==> sysctl: vm.min_free_kbytes=[${value_min_free_kbytes}]"
echo_broadcast "==> sysctl: setting: [sysctl -w vm.min_free_kbytes=16384]"
sysctl -w vm.min_free_kbytes=16384
generate_line 40
fi
echo_broadcast "==> Determining root drive"
find_root_drive
echo_broadcast "====> Root drive identified at [${root_drive}]"
boot_drive=${root_drive%?}1
echo_broadcast "==> Boot Drive [${boot_drive}]"
echo_broadcast "==> Figuring out Source and Destination devices"
if [ "x${boot_drive}" = "x/dev/mmcblk0p1" ] ; then
source="/dev/mmcblk0"
destination="/dev/mmcblk1"
elif [ "x${boot_drive}" = "x/dev/mmcblk1p1" ] ; then
source="/dev/mmcblk1"
destination="/dev/mmcblk0"
else
echo_broadcast "!!! Could not reliably determine Source and Destination"
echo_broadcast "!!! We need to stop here"
teardown_environment
write_failure
exit 2
fi
echo_broadcast "====> Source identified: [${source}]"
echo_broadcast "====> Destination identified: [${destination}]"
echo_broadcast "==> Figuring out machine"
get_device
echo_broadcast "====> Machine is ${machine}"
if [ "x${is_bbb}" = "xenable" ] ; then
echo_broadcast "====> Machine is compatible with BeagleBone Black"
fi
if [ ! "x${boot_drive}" = "x${root_drive}" ] ; then
echo_broadcast "====> The Boot and Root drives are identified to be different."
echo_broadcast "====> Giving system time to stablize..."
countdown 5
echo_broadcast "====> Mounting ${boot_drive} Read Only over /boot/uboot"
mount ${boot_drive} /boot/uboot -o ro || try_vfat
fi
generate_line 80 '='
}
prepare_environment_reverse() {
generate_line 80 '='
echo_broadcast "Prepare environment for flashing"
start_time=$(date +%s)
echo_broadcast "Starting at $(date --date="@$start_time")"
generate_line 40
value_min_free_kbytes=$(sysctl -n vm.min_free_kbytes)
echo_broadcast "==> sysctl: vm.min_free_kbytes=[${value_min_free_kbytes}]"
echo_broadcast "==> sysctl: setting: [sysctl -w vm.min_free_kbytes=16384]"
sysctl -w vm.min_free_kbytes=16384
generate_line 40
# echo_broadcast "==> Preparing /tmp"
# mount -t tmpfs tmpfs /tmp
echo_broadcast "==> Determining root drive"
find_root_drive
echo_broadcast "====> Root drive identified at ${root_drive}"
echo_broadcast "==> Determining boot drive"
boot_drive="${root_drive%?}1"
# if [ ! "x${boot_drive}" = "x${root_drive}" ] ; then
# echo_broadcast "====> The Boot and Root drives are identified to be different."
# echo_broadcast "====> Mounting ${boot_drive} Read Only over /boot/uboot"
# mount ${boot_drive} /boot/uboot -o ro
# fi
echo_broadcast "==> Figuring out Source and Destination devices"
if [ "x${boot_drive}" = "x/dev/mmcblk0p1" ] ; then
source="/dev/mmcblk0"
destination="/dev/mmcblk1"
elif [ "x${boot_drive}" = "x/dev/mmcblk1p1" ] ; then
source="/dev/mmcblk1"
destination="/dev/mmcblk0"
else
echo_broadcast "!!! Could not reliably determine Source and Destination"
echo_broadcast "!!! We need to stop here"
teardown_environment_reverse
write_failure
exit 2
fi
echo_broadcast "====> Source identified: [${source}]"
echo_broadcast "====> Destination identified: [${destination}]"
echo_broadcast "====> Unmounting auto-mounted partitions"
NUM_MOUNTS=$(mount | grep -v none | grep "${destination}" | wc -l)
i=0 ; while test $i -le ${NUM_MOUNTS} ; do
DRIVE=$(mount | grep -v none | grep "${destination}" | tail -1 | awk '{print $1}')
umount ${DRIVE} >/dev/null 2>&1 || true
i=$(($i+1))
done
echo_broadcast "==> Figuring out machine"
get_device
echo_broadcast "====> Machine is ${machine}"
if [ "x${is_bbb}" = "xenable" ] ; then
echo_broadcast "====> Machine is compatible with BeagleBone Black"
fi
generate_line 80 '='
}
teardown_environment() {
generate_line 80 '='
echo_broadcast "Tearing Down script environment"
echo_broadcast "==> Unmounting /tmp"
flush_cache
umount /tmp || true
if [ ! "x${boot_drive}" = "x${root_drive}" ] ; then
echo_broadcast "==> Unmounting /boot"
flush_cache
umount /boot || true
fi
reset_leds 'none'
echo_broadcast "==> Force writeback of eMMC buffers by Syncing: ${destination}"
sync
generate_line 40
dd if=${destination} of=/dev/null count=100000
generate_line 40
echo_broadcast "===> Syncing: ${destination} complete"
end_time=$(date +%s)
echo_broadcast "==> This script took $((${end_time}-${start_time})) seconds to run"
generate_line 80 '='
}
teardown_environment_reverse() {
generate_line 80 '='
echo_broadcast "Tearing Down script environment"
flush_cache
reset_leds 'none'
echo_broadcast "==> Force writeback of eMMC buffers by Syncing: ${destination}"
sync
generate_line 40
dd if=${destination} of=/dev/null count=100000
generate_line 40
echo_broadcast "===> Syncing: ${destination} complete"
end_time=$(date +%s)
echo_broadcast "==> This script took $((${end_time}-${start_time})) seconds to run"
generate_line 80 '='
}
end_script() {
empty_line
if [ -f /boot/debug.txt ] ; then
echo_broadcast "This script has now completed its task"
generate_line 40
echo_broadcast "debug: enabled"
inf_loop
else
reset_leds 'default-on'
echo_broadcast '==> Displaying mount points'
generate_line 80
mount
generate_line 80
empty_line
generate_line 80 '='
echo_broadcast "eMMC has been flashed: please wait for device to power down."
generate_line 80 '='
flush_cache
unset are_we_flasher
are_we_flasher=$(grep init-eMMC-flasher /proc/cmdline || true)
if [ ! "x${are_we_flasher}" = "x" ] ; then
echo_broadcast "We are init"
#When run as init
exec /sbin/init
exit #We should not hit that
fi
echo_broadcast "Calling shutdown"
systemctl poweroff || halt
fi
}
check_if_run_as_root(){
if ! id | grep -q root; then
echo "must be run as root"
exit
fi
}
find_root_drive(){
unset root_drive
if [ -f /proc/cmdline ] ; then
proc_cmdline=$(cat /proc/cmdline | tr -d '\000')
echo_broadcast "==> ${proc_cmdline}"
generate_line 40
root_drive=$(cat /proc/cmdline | tr -d '\000' | sed 's/ /\n/g' | grep ^root=UUID= | awk -F 'root=' '{print $2}' || true)
if [ ! "x${root_drive}" = "x" ] ; then
root_drive=$(/sbin/findfs ${root_drive} || true)
else
root_drive=$(cat /proc/cmdline | sed 's/ /\n/g' | grep ^root= | awk -F 'root=' '{print $2}' || true)
fi
echo_broadcast "==> root_drive=[${root_drive}]"
else
echo_broadcast "no /proc/cmdline"
fi
}
flush_cache() {
sync
blockdev --flushbufs ${destination}
}
broadcast() {
if [ "x${message}" != "x" ] ; then
echo "${message}"
echo "${message}" > /dev/tty0 || true
fi
}
echo_broadcast() {
local _message="$1"
if [ "x${_message}" != "x" ] ; then
echo "${_message}"
echo "${_message}" > /dev/tty0 || true
fi
}
echo_debug() {
local _message="$1"
if [ "x${_message}" != "x" ] ; then
echo "${_message}" >&2
echo "${_message}" >&2 > /dev/tty0 || true
fi
}
empty_line() {
echo ""
echo "" > /dev/tty0 || true
}
generate_line() {
local line_length=${1:-80}
local line_char=${2:-\-}
local line=$(printf "%${line_length}s\n" | tr ' ' \\$line_char)
echo_broadcast "${line}"
}
inf_loop() {
while read MAGIC ; do
case $MAGIC in
beagleboard.org)
echo "Your foo is strong!"
bash -i
;;
*) echo "Your foo is weak."
;;
esac
done
}
# umount does not like device names without a valid /etc/mtab
# find the mount point from /proc/mounts
dev2dir() {
grep -m 1 '^$1 ' /proc/mounts | while read LINE ; do set -- $LINE ; echo $2 ; done
}
get_device() {
is_bbb="enable"
machine=$(cat /proc/device-tree/model | sed "s/ /_/g" | tr -d '\000')
case "${machine}" in
TI_AM5728_BeagleBoard*)
unset is_bbb
;;
esac
}
reset_leds() {
local leds_pattern0=${1:-heartbeat}
local leds_pattern1=${1:-mmc0}
local leds_pattern2=${1:-none}
local leds_pattern3=${1:-mmc1}
local leds_base=/sys/class/leds/beaglebone\:green\:usr
if [ "x${is_bbb}" = "xenable" ] ; then
if [ -e /proc/$CYLON_PID ]; then
echo_broadcast "==> Stopping Cylon LEDs ..."
kill $CYLON_PID > /dev/null 2>&1
fi
if [ -e ${leds_base}0/trigger ] ; then
echo_broadcast "==> Setting LEDs to ${leds_pattern}"
echo $leds_pattern0 > ${leds_base}0/trigger
echo $leds_pattern1 > ${leds_base}1/trigger
echo $leds_pattern2 > ${leds_base}2/trigger
echo $leds_pattern3 > ${leds_base}3/trigger
fi
else
echo_broadcast "!==> We don't know how to reset the leds as we are not a BBB compatible device"
fi
}
write_failure() {
echo_broadcast "writing to [${destination}] failed..."
reset_leds 'heartbeat'
generate_line 40
flush_cache
umount $(dev2dir ${destination}p1) > /dev/null 2>&1 || true
umount $(dev2dir ${destination}p2) > /dev/null 2>&1 || true
inf_loop
}
do_we_have_eeprom() {
unset got_eeprom
#v8 of nvmem...
if [ -f /sys/bus/nvmem/devices/at24-0/nvmem ] && [ "x${got_eeprom}" = "x" ] ; then
eeprom="/sys/bus/nvmem/devices/at24-0/nvmem"
eeprom_location="/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/at24-0/nvmem"
got_eeprom="true"
fi
#pre-v8 of nvmem...
if [ -f /sys/class/nvmem/at24-0/nvmem ] && [ "x${got_eeprom}" = "x" ] ; then
eeprom="/sys/class/nvmem/at24-0/nvmem"
eeprom_location="/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/nvmem/at24-0/nvmem"
got_eeprom="true"
fi
#eeprom 3.8.x & 4.4 with eeprom-nvmem patchset...
if [ -f /sys/bus/i2c/devices/0-0050/eeprom ] && [ "x${got_eeprom}" = "x" ] ; then
eeprom="/sys/bus/i2c/devices/0-0050/eeprom"
if [ -f /sys/devices/platform/ocp/44c00000.interconnect/44c00000.interconnect:segment@200000/44e0b000.target-module/44e0b000.i2c/i2c-0/0-0050/eeprom ] ; then
eeprom_location="/sys/devices/platform/ocp/44c00000.interconnect/44c00000.interconnect:segment@200000/44e0b000.target-module/44e0b000.i2c/i2c-0/0-0050/eeprom"
else
if [ -f /sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/eeprom ] ; then
eeprom_location="/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/eeprom"
else
eeprom_location=$(ls /sys/devices/ocp*/44e0b000.i2c/i2c-0/0-0050/eeprom 2> /dev/null)
fi
fi
got_eeprom="true"
fi
}
do_we_have_am335x_eeprom() {
do_we_have_eeprom
}
check_am335x_eeprom() {
empty_line
generate_line 40 '='
echo_broadcast "Checking for Valid ${device_eeprom} header"
do_we_have_am335x_eeprom
if [ "x${is_bbb}" = "xenable" ] ; then
if [ "x${got_eeprom}" = "xtrue" ] ; then
eeprom_header=$(hexdump -e '8/1 "%c"' ${eeprom} -n 8 | cut -b 6-8)
if [ "x${eeprom_header}" = "x335" ] ; then
echo_broadcast "==> Valid ${device_eeprom} header found [${eeprom_header}]"
generate_line 40 '='
else
echo_broadcast "==> Invalid EEPROM header detected"
if [ -f /opt/scripts/device/bone/${device_eeprom}.dump ] ; then
if [ ! "x${eeprom_location}" = "x" ] ; then
echo_broadcast "===> Writing header to EEPROM"
dd if=/opt/scripts/device/bone/${device_eeprom}.dump of=${eeprom_location}
sync
sync
eeprom_check=$(hexdump -e '8/1 "%c"' ${eeprom} -n 8 | cut -b 6-8)
echo_broadcast "===> eeprom check: [${eeprom_check}]"
generate_line 40 '='
#We have to reboot, as the kernel only loads the eMMC cape
# with a valid header
reboot -f
#We shouldnt hit this...
exit
fi
else
echo_broadcast "!==> error: no [/opt/scripts/device/bone/${device_eeprom}.dump]"
generate_line 40 '='
fi
fi
fi
fi
}
check_eeprom() {
check_am335x_eeprom
}
do_we_have_am57xx_eeprom() {
unset got_eeprom
if [ -f /sys/bus/i2c/devices/0-0050/eeprom ] && [ "x${got_eeprom}" = "x" ] ; then
eeprom="/sys/bus/i2c/devices/0-0050/eeprom"
if [ -f /sys/devices/platform/44000000.ocp/48000000.interconnect/48000000.interconnect:segment@0/48070000.target-module/48070000.i2c/i2c-0/0-0050/eeprom ] ; then
eeprom_location="/sys/devices/platform/44000000.ocp/48000000.interconnect/48000000.interconnect:segment@0/48070000.target-module/48070000.i2c/i2c-0/0-0050/eeprom"
else
if [ -f /sys/devices/platform/44000000.ocp/48070000.i2c/i2c-0/0-0050/eeprom ] ; then
eeprom_location="/sys/devices/platform/44000000.ocp/48070000.i2c/i2c-0/0-0050/eeprom"
fi
fi
got_eeprom="true"
fi
}
check_am57xx_eeprom() {
empty_line
generate_line 40 '='
echo_broadcast "Checking for Valid ${device_eeprom} header"
do_we_have_am57xx_eeprom
if [ "x${got_eeprom}" = "xtrue" ] ; then
eeprom_header=$(hexdump -e '8/1 "%c"' ${eeprom} -n 3 | cut -b 2-3)
if [ "x${eeprom_header}" = "xU3" ] ; then
echo_broadcast "==> Valid ${device_eeprom} header found [${eeprom_header}]"
generate_line 40 '='
else
echo_broadcast "==> Invalid EEPROM header detected"
if [ -f /opt/scripts/device/${device_eeprom}.dump ] ; then
if [ ! "x${eeprom_location}" = "x" ] ; then
echo_broadcast "===> Writing header to EEPROM"
dd if=/opt/scripts/device/${device_eeprom}.dump of=${eeprom_location}
sync
sync
eeprom_check=$(hexdump -e '8/1 "%c"' ${eeprom} -n 3 | cut -b 2-3)
echo_broadcast "===> eeprom check: [${eeprom_check}]"
generate_line 40 '='
#We have to reboot, as the kernel only loads the eMMC cape
# with a valid header
reboot -f
#We shouldnt hit this...
exit
fi
else
echo_broadcast "!==> error: no [/opt/scripts/device/${device_eeprom}.dump]"
generate_line 40 '='
fi
fi
fi
}
countdown() {
local from_time=${1:-10}
while [ $from_time -gt 0 ] ; do
echo -n "${from_time} "
sleep 1
: $((from_time--))
done
empty_line
}
check_running_system() {
empty_line
generate_line 80 '='
echo_broadcast "Checking running system"
echo_broadcast "==> Copying: [${source}] -> [${destination}]"
echo_broadcast "==> lsblk:"
generate_line 40
echo_broadcast "`lsblk || true`"
generate_line 40
echo_broadcast "==> df -h | grep rootfs:"
echo_broadcast "`df -h | grep rootfs || true`"
generate_line 40
if [ ! -b "${destination}" ] ; then
echo_broadcast "!==> Error: [${destination}] does not exist"
write_failure
fi
if [ "x${is_bbb}" = "xenable" ] ; then
if [ ! -e /sys/class/leds/beaglebone\:green\:usr0/trigger ] ; then
modprobe leds_gpio || true
sleep 1
fi
fi
echo_broadcast "==> Giving you time to check..."
countdown 10
generate_line 80 '='
}
check_running_system_initrd() {
empty_line
generate_line 80 '='
echo_broadcast "Checking running system"
echo_broadcast "==> Copying: [${source}] -> [${destination}]"
echo_broadcast "==> lsblk:"
generate_line 40
echo_broadcast "`lsblk || true`"
generate_line 40
echo_broadcast "==> df -h | grep rootfs:"
echo_broadcast "`df -h | grep rootfs || true`"
generate_line 40
if [ ! -b "${destination}" ] ; then
echo_broadcast "!==> Error: [${destination}] does not exist"
write_failure
fi
if [ ! -f /boot/config-$(uname -r) ] ; then
echo_broadcast "==> generating: /boot/config-$(uname -r)"
zcat /proc/config.gz > /boot/config-$(uname -r)
fi
#Needed for: debian-7.5-2014-05-14
if [ ! -f /boot/vmlinuz-$(uname -r) ] ; then
echo_broadcast "==> updating: /boot/vmlinuz-$(uname -r) (old image)"
if [ -f /boot/uboot/zImage ] ; then
cp -v /boot/uboot/zImage /boot/vmlinuz-$(uname -r)
else
echo_broadcast "!==> Error: [/boot/vmlinuz-$(uname -r)] does not exist"
write_failure
fi
flush_cache
fi
if [ -f /boot/initrd.img-$(uname -r) ] ; then
echo_broadcast "==> updating: /boot/initrd.img-$(uname -r)"
update-initramfs -u -k $(uname -r)
else
echo_broadcast "==> creating: /boot/initrd.img-$(uname -r)"
update-initramfs -c -k $(uname -r)
fi
flush_cache
#Needed for: debian-7.5-2014-05-14
if [ ! -d /boot/dtbs/$(uname -r)/ ] ; then
if [ -d /boot/uboot/dtbs/ ] ; then
mkdir -p /boot/dtbs/$(uname -r) || true
cp -v /boot/uboot/dtbs/* /boot/dtbs/$(uname -r)/
else
echo_broadcast "!==> Error: [/boot/dtbs/$(uname -r)/] does not exist"
write_failure
fi
flush_cache
fi
if [ "x${is_bbb}" = "xenable" ] ; then
if [ ! -e /sys/class/leds/beaglebone\:green\:usr0/trigger ] ; then
modprobe leds_gpio || true
sleep 1
fi
fi
echo_broadcast "==> Giving you time to check..."
countdown 10
generate_line 80 '='
}
cylon_leds() {
if [ "x${is_bbb}" = "xenable" ] ; then
if [ -e /sys/class/leds/beaglebone\:green\:usr0/trigger ] ; then
BASE=/sys/class/leds/beaglebone\:green\:usr
echo none > ${BASE}0/trigger
echo none > ${BASE}1/trigger
echo none > ${BASE}2/trigger
echo none > ${BASE}3/trigger
STATE=1
while : ; do
case $STATE in
1)
echo 255 > ${BASE}0/brightness
echo 0 > ${BASE}1/brightness
STATE=2
;;
2)
echo 255 > ${BASE}1/brightness
echo 0 > ${BASE}0/brightness
STATE=3
;;
3)
echo 255 > ${BASE}2/brightness
echo 0 > ${BASE}1/brightness
STATE=4
;;
4)
echo 255 > ${BASE}3/brightness
echo 0 > ${BASE}2/brightness
STATE=5
;;
5)
echo 255 > ${BASE}2/brightness
echo 0 > ${BASE}3/brightness
STATE=6
;;
6)
echo 255 > ${BASE}1/brightness
echo 0 > ${BASE}2/brightness
STATE=1
;;
*)
echo 255 > ${BASE}0/brightness
echo 0 > ${BASE}1/brightness
STATE=2
;;
esac
sleep 0.1
done
fi
fi
}
_build_uboot_spl_dd_options() {
echo_broadcast "==> Figuring out options for SPL U-Boot copy ..."
unset dd_spl_uboot
if [ ! "x${dd_spl_uboot_count}" = "x" ] ; then
dd_spl_uboot="${dd_spl_uboot}count=${dd_spl_uboot_count} "
fi
if [ ! "x${dd_spl_uboot_seek}" = "x" ] ; then
dd_spl_uboot="${dd_spl_uboot}seek=${dd_spl_uboot_seek} "
fi
if [ ! "x${dd_spl_uboot_conf}" = "x" ] ; then
dd_spl_uboot="${dd_spl_uboot}conv=${dd_spl_uboot_conf} "
fi
if [ ! "x${dd_spl_uboot_bs}" = "x" ] ; then
dd_spl_uboot="${dd_spl_uboot}bs=${dd_spl_uboot_bs}"
fi
echo_broadcast "===> Will use : $dd_spl_uboot"
}
_build_uboot_dd_options() {
echo_broadcast "==> Figuring out options for U-Boot copy ..."
unset dd_uboot
if [ ! "x${dd_uboot_count}" = "x" ] ; then
dd_uboot="${dd_uboot}count=${dd_uboot_count} "
fi
if [ ! "x${dd_uboot_seek}" = "x" ] ; then
dd_uboot="${dd_uboot}seek=${dd_uboot_seek} "
fi
if [ ! "x${dd_uboot_conf}" = "x" ] ; then
dd_uboot="${dd_uboot}conv=${dd_uboot_conf} "
fi
if [ ! "x${dd_uboot_bs}" = "x" ] ; then
dd_uboot="${dd_uboot}bs=${dd_uboot_bs}"
fi
echo_broadcast "===> Will use : $dd_uboot"
}
_dd_bootloader() {
empty_line
generate_line 80 '='
echo_broadcast "Writing bootloader to [${destination}]"
generate_line 40
_build_uboot_spl_dd_options
_build_uboot_dd_options
echo_broadcast "==> Copying SPL U-Boot with dd if=${dd_spl_uboot_backup} of=${destination} ${dd_spl_uboot}"
generate_line 60
dd if=${dd_spl_uboot_backup} of=${destination} ${dd_spl_uboot}
generate_line 60
echo_broadcast "==> Copying U-Boot with dd if=${dd_uboot_backup} of=${destination} ${dd_uboot}"
generate_line 60
dd if=${dd_uboot_backup} of=${destination} ${dd_uboot}
generate_line 60
echo_broadcast "Writing bootloader completed"
generate_line 80 '='
}
_format_boot() {
empty_line
echo_broadcast "==> Formatting boot partition with mkfs.vfat -F 16 ${boot_partition} -n ${boot_label}"
generate_line 80
LC_ALL=C mkfs.vfat -c -F 16 ${boot_partition} -n ${boot_label}
generate_line 80
echo_broadcast "==> Formatting boot: ${boot_partition} complete"
flush_cache
}
_format_root_ext4() {
empty_line
echo_broadcast "==> Formatting rootfs with mkfs.ext4 ${ext4_options} ${rootfs_partition} -L ${rootfs_label}"
generate_line 80
empty_line
LC_ALL=C mkfs.ext4 ${ext4_options} ${rootfs_partition} -L ${rootfs_label}
generate_line 80
echo_broadcast "==> Formatting rootfs: ${rootfs_partition} complete"
flush_cache
}
_format_root_btrfs() {
empty_line
echo_broadcast "==> Formatting rootfs with mkfs.btrfs ${rootfs_partition} -L ${rootfs_label}"
generate_line 80
empty_line
LC_ALL=C mkfs.btrfs ${rootfs_partition} -L ${rootfs_label}
generate_line 80
echo_broadcast "==> Formatting rootfs: ${rootfs_partition} complete"
flush_cache
}
_copy_boot() {
empty_line
generate_line 80 '='
echo_broadcast "Copying boot: ${source}p1 -> ${boot_partition}"
#rcn-ee: Currently the MLO/u-boot.img are dd'ed to MBR by default, this is just for VERY old rootfs (aka, DO NOT USE)
if [ ! -f /opt/backup/uboot/MLO ] ; then
if [ -f /boot/uboot/MLO ] && [ -f /boot/uboot/u-boot.img ] ; then
echo_broadcast "==> Found MLO and u-boot.img in current /boot/uboot/, copying"
#Make sure the BootLoader gets copied first:
cp -v /boot/uboot/MLO ${tmp_boot_dir}/MLO || write_failure
flush_cache
cp -v /boot/uboot/u-boot.img ${tmp_boot_dir}/u-boot.img || write_failure
flush_cache
fi
fi
if [ -f /boot/uboot/MLO ] ; then
echo_broadcast "==> rsync: /boot/uboot/ -> ${tmp_boot_dir}"
get_rsync_options
rsync -aAXxv $rsync_options /boot/uboot/* ${tmp_boot_dir} --exclude={MLO,u-boot.img,uEnv.txt} || write_failure
flush_cache
empty_line
generate_line 80 '='
fi
}
get_device_uuid() {
local device=${1}
unset device_uuid
device_uuid=$(/sbin/blkid /dev/null -s UUID -o value ${device})
if [ ! -z "${device_uuid}" ] ; then
echo_debug "Device UUID should be: ${device_uuid}"
echo $device_uuid
else
echo_debug "Could not get a proper UUID for $device. Try with another ID"
fi
}
_generate_uEnv() {
local uEnv_file=${1:-${tmp_rootfs_dir}/boot/uEnv.txt}
empty_line
if [ -f $uEnv_file ]; then
echo_broadcast "==> Found pre-existing uEnv file at ${uEnv_file}. Using it."
generate_line 80 '*'
cat $uEnv_file
generate_line 80 '*'
empty_line
else
echo_broadcast "==> Could not find pre-existing uEnv file at ${uEnv_file}"
echo_broadcast "===> Generating it from template ..."
generate_line 40 '*'
cat > ${uEnv_file} <<__EOF__
#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0
uname_r=$(uname -r)
#uuid=
#dtb=
cmdline=coherent_pool=1M quiet cape_universal=enable
##enable Generic eMMC Flasher:
##make sure, these tools are installed: dosfstools rsync
#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh
__EOF__
flush_cache
generate_line 40 '*'
empty_line
fi
#UUID support for 3.8.x kernel
if [ -d /sys/devices/bone_capemgr.*/ ] ; then
root_uuid=$(get_device_uuid ${rootfs_partition})
if [ ! -z "${root_uuid}" ] ; then
echo_broadcast "==> Put root uuid in uEnv.txt"
sed -i -e 's:^uuid=:#uuid=:g' ${tmp_rootfs_dir}/boot/uEnv.txt
echo "uuid=${root_uuid}" >> ${tmp_rootfs_dir}/boot/uEnv.txt
fi
fi
}
get_fstab_id_for_device() {
local device=${1}
local device_id=$(get_device_uuid ${device})
if [ -n ${device_id} ]; then
echo "UUID=${device_id}"
else
echo_debug "Could not find a UUID for ${device}, default to device name"
# Since the mmc device get reverse depending on how it was booted we need to use source
echo "${source}p${device:(-1)}"
fi
}
_generate_fstab() {
empty_line
echo_broadcast "==> Generating: /etc/fstab"
echo "# /etc/fstab: static file system information." > ${tmp_rootfs_dir}/etc/fstab
echo "#" >> ${tmp_rootfs_dir}/etc/fstab
if [ "${boot_partition}x" != "${rootfs_partition}x" ] ; then
#UUID support for 3.8.x kernel
if [ -d /sys/devices/bone_capemgr.*/ ] ; then
boot_fs_id=$(get_fstab_id_for_device ${boot_partition})
echo "${boot_fs_id} /boot/uboot auto defaults 0 0" >> ${tmp_rootfs_dir}/etc/fstab
else
echo "${boot_partition} /boot/uboot auto defaults 0 0" >> ${tmp_rootfs_dir}/etc/fstab
fi
fi
#UUID support for 3.8.x kernel
if [ -d /sys/devices/bone_capemgr.*/ ] ; then
root_fs_id=$(get_fstab_id_for_device ${rootfs_partition})
if [ "x${boot_fstype}" = "xbtrfs" ] ; then
echo "${root_fs_id} / btrfs defaults,noatime 0 1" >> ${tmp_rootfs_dir}/etc/fstab
echo "mmcrootfstype=btrfs rootwait" >> ${tmp_rootfs_dir}/boot/uEnv.txt
else
echo "${root_fs_id} / ext4 noatime,errors=remount-ro 0 1" >> ${tmp_rootfs_dir}/etc/fstab
fi
else
if [ "x${boot_fstype}" = "xbtrfs" ] ; then
echo "${rootfs_partition} / btrfs defaults,noatime 0 1" >> ${tmp_rootfs_dir}/etc/fstab
echo "mmcrootfstype=btrfs rootwait" >> ${tmp_rootfs_dir}/boot/uEnv.txt
else
echo "${rootfs_partition} / ext4 noatime,errors=remount-ro 0 1" >> ${tmp_rootfs_dir}/etc/fstab
fi
fi
echo "debugfs /sys/kernel/debug debugfs defaults 0 0" >> ${tmp_rootfs_dir}/etc/fstab
echo_broadcast "===> /etc/fstab generated"
generate_line 40 '*'
cat ${tmp_rootfs_dir}/etc/fstab
generate_line 40 '*'
empty_line
#UUID support for 3.8.x kernel
if [ ! -d /sys/devices/bone_capemgr.*/ ] ; then
sed -i -e 's:^uuid=:#uuid=:g' ${tmp_rootfs_dir}/boot/uEnv.txt
fi
}
_copy_rootfs() {
empty_line
generate_line 80 '='
echo_broadcast "Copying: Current rootfs to ${rootfs_partition}"
generate_line 40
echo_broadcast "==> rsync: / -> ${tmp_rootfs_dir}"