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|
#!/bin/bash
### BEGIN INIT INFO
# Provides: umountfs
# Required-Start:
# Required-Stop:
# Default-Start:
# Default-Stop: 0 6
# Short-Description: Turn off swap and unmount all local file systems.
# Description:
### END INIT INFO
PATH=/sbin:/bin:/usr/sbin:/usr/bin
upgrade_fname="/var/volatile/do_flash_upgrade"
umount_all() {
echo "Deactivating swap..."
swapoff -a
# We leave /proc mounted.
echo "Unmounting local filesystems..."
grep -q /mnt/ram /proc/mounts && mount -o remount,ro /mnt/ram
umount -f -a -r > /dev/null 2>&1
mount -o remount,ro /
}
blink_leds() {
led_dir=/sys/class/leds
# blink all programmable LEDs except status
leds=$(ls $led_dir/ | grep -v status)
nleds=$(echo "$leds" | wc -w)
# turn LEDs off
for led in $leds; do
echo "timer" > $led_dir/$led/trigger
echo 0 > $led_dir/$led/delay_off
done
int=200
total=$(( int * (nleds+1) ))
on=$(( total - int ))
off=$(( total - on ))
# make a pattern
for led in $leds; do
echo "$on" > $led_dir/$led/delay_on
echo "$off" > $led_dir/$led/delay_off
on=$(( on - int ))
off=$(( total - on ))
done
}
err_leds() {
led_dir=/sys/class/leds
# blink all programmable LEDs except status
leds=$(ls $led_dir/ | grep -v status)
nleds=$(echo "$leds" | wc -w)
# turn LEDs off
for led in $leds; do
echo "timer" > $led_dir/$led/trigger
echo 0 > $led_dir/$led/delay_off
done
int=200
total=$(( int * (nleds+1) ))
on=$(( total - int ))
off=$(( total - on ))
# make a pattern
for led in $leds; do
echo "$on" > $led_dir/$led/delay_on
echo "$off" > $led_dir/$led/delay_off
done
sleep 5
}
flash_upgrade() {
if [ $# -ne 1 ]; then
echo "need to specify flash-root"
return
fi
# flash_root must be a mountpoint that is not the rootfs and be mounted rw
# External mount may be on symlink.
local flash_root=$(readlink -f ${1})
local flash_dir=${flash_root}/flash-upgrade
local upgrade_file=${flash_dir}/upgrade.bin
local kernel_solo_file=${flash_dir}/uImage.bin
local rootfs_solo_file=${flash_dir}/rootfs.jffs2
local uboot_solo_file=${flash_dir}/u-boot.bin
local reboot_cmd=/usr/sbin/upgrade-reboot
local nandwrite_cmd=/usr/bin/nandwrite.static
local mode=
local bootstrap_mtd=
local config_mtd=
local oem_mtd=
local rootfs_mtd=
local kernel_mtd=
local uboot_mtd=
local bootstrap_file=bstrap.bin
local config_file=config.jffs2
local oem_file=oem.jffs2
local rootfs_file=rootfs.jffs2
local kernel_file=uImage.bin
local uboot_file=uboot.bin
local install_file=install.sh
if [ ! -d "${flash_dir}" ]; then
echo "${flash_dir} not present, skipping"
return
fi
if ! mountpoint -q "${flash_root}"; then
echo "${flash_root} is not a mountpoint"
return
fi
mode=$(grep "${flash_root}" /proc/mounts | cut -d ' ' -f 4 | cut -d ',' -f 1)
if [ "${mode}" != "rw" ]; then
echo "${flash_root} is not mounted rw"
return
fi
if [ ! -x "${reboot_cmd}" ]; then
echo "${reboot_cmd} is not installed"
return
fi
if [ ! -x "${nandwrite_cmd}" ]; then
echo "${nandwrite_cmd} is not installed"
return
fi
bootstrap_mtd="/dev/$(cat /proc/mtd | grep '\"at91bootstrap\"' | cut -d : -f 1)"
if [ ! -c "${bootstrap_mtd}" ]; then
echo "No valid MTD partition is labeled at91bootstrap"
return
fi
config_mtd="/dev/$(cat /proc/mtd | grep '\"Config\"' | cut -d : -f 1)"
if [ ! -c "${config_mtd}" ]; then
echo "No valid MTD partition is labeled Config"
return
fi
oem_mtd="/dev/$(cat /proc/mtd | grep '\"OEM Config\"' | cut -d : -f 1)"
if [ ! -c "${oem_mtd}" ]; then
echo "No valid MTD partition is labeled OEM Config"
return
fi
kernel_mtd="/dev/$(cat /proc/mtd | grep '\"uImage\"' | cut -d : -f 1)"
if [ ! -c "${kernel_mtd}" ]; then
echo "No valid MTD partition is labeled uImage"
return
fi
uboot_mtd="/dev/$(cat /proc/mtd | grep '\"u-Boot\"' | cut -d : -f 1)"
if [ ! -c "${uboot_mtd}" ]; then
echo "No valid MTD partition is labeled u-Boot"
return
fi
rootfs_mtd="/dev/$(cat /proc/mtd | grep '\"Rootfs\"' | cut -d : -f 1)"
if [ ! -c "${rootfs_mtd}" ]; then
echo "No valid MTD partition is labeled Rootfs"
return
fi
cd /var/volatile
# rootfs should always be flashed last, so always keep it last here
local files=(${bootstrap_file} ${uboot_file} ${config_file} ${oem_file} ${kernel_file} ${rootfs_file} ${install_file})
local devs=(${bootstrap_mtd} ${uboot_mtd} ${config_mtd} ${oem_mtd} ${kernel_mtd} ${rootfs_mtd})
if [ -f "${upgrade_file}" ]; then
echo "Found ${upgrade_file}"
# make sure firmware is for this device
shopt -s nocasematch
local hw_version=$(cat /sys/devices/platform/mts-io/hw-version)
local firmware_model=$(tar -xO -f ${upgrade_file} model)
# Do case insensity character match.
shopt -s nocasematch
if [[ ! "${hw_version}" =~ ^(${firmware_model})- ]]; then
echo "Wrong firmware for this hardware"
echo "hw version: ${hw_version}"
echo "firmware model: ${firmware_model}"
return
fi
shopt -u nocasematch
echo "Checking MD5s"
((upgrade_script=0))
# check md5sum
for (( i = 0; i < ${#files[@]}; i++ )); do
local file=${files[i]}
if tar -t -f ${upgrade_file} | grep -F -q "${file}"; then
if ! tar -x -f ${upgrade_file} ${file}.md5; then
echo "MD5 not found for ${file}"
return
fi
if ! tar -xO -f ${upgrade_file} ${file} | md5sum -c ${file}.md5; then
echo "MD5 check failed for ${file}"
return
fi
if [[ ${file} == ${install_file} ]] ; then
((upgrade_script=1))
fi
fi
done
fi
echo ""
if [ -f "${upgrade_file}" ]; then
echo "Starting flash upgrade from ${upgrade_file}..."
elif [ -f "${kernel_solo_file}" ] || [ -f "${rootfs_solo_file}" ] || [ -f "${uboot_solo_file}" ] ; then
echo "Starting flash upgrade from ${flash_dir}..."
else
return
fi
blink_leds
if [[ ${flash_root} == /var/volatile ]] ; then
oldIFS="${IFS}"
IFS=$'\n' rmlist=($(find ${flash_root} -xdev -maxdepth 1 -print | egrep -v "^${flash_root}$|^${flash_dir}$|^${flash_dir}/"))
IFS="${oldIFS}"
((i=0))
while((i < ${#rmlist[@]})) ; do
rm -rf "${rmlist[$i]}"
((i++))
done
fi
if ! cp ${reboot_cmd} ${flash_dir}/upgrade-reboot ; then
echo "Aborting upgrade. Failed \"cp ${reboot_cmd} ${flash_dir}/upgrade-reboot\""
err_leds
return 1
fi
if ! cp ${nandwrite_cmd} ${flash_dir}/nandwrite.static ; then
echo "Aborting upgrade. Failed \"cp ${nandwrite_cmd} ${flash_dir}/nandwrite.static\""
err_leds
return 1
fi
# Run the upgrade script, if it exists, before we change
# flash-root to read-only
if ((upgrade_script == 1)) ; then
if (cd ${flash_dir};tar -xf ${upgrade_file}) ; then
exec ${flash_dir}/${install_file} ${flash_root}
else
echo "Extraction of ${upgrade_file} failed"
echo "Upgrade aborted"
umount_all
fi
fi
sync
sleep 2
mount -o remount,ro ${flash_root}
# flash_root is not going to be umounted
sed -i -e "\\|${flash_root}| d" /etc/mtab
umount_all
if [ -f "${upgrade_file}" ]; then
for (( i = 0; i < ${#files[@]}; i++ )); do
local file=${files[i]}
local dev=${devs[i]}
if tar -t -f ${upgrade_file} | grep -F -q "${file}"; then
if [ "${file}" == "${bootstrap_file}" ] || [ "${file}" == "${uboot_file}" ]; then
local file_size=$(tar -xO -f ${upgrade_file} ${file} | wc -c)
if dd if=${dev} bs=${file_size} count=1 | md5sum -c ${file}.md5; then
echo "Found ${file} in upgrade but it is the same as current. Continuing..."
continue
fi
fi
echo "Flashing ${dev} with ${file}..."
flash_erase -j ${dev} 0 0
tar -xO -f ${upgrade_file} ${file} | ${flash_dir}/nandwrite.static -p ${dev}
fi
done
else
if [ -f ${uboot_solo_file} ]; then
echo "Flashing ${uboot_mtd} (u-boot) with ${uboot_solo_file}..."
flash_erase ${uboot_mtd} 0 0
${flash_dir}/nandwrite.static -p ${uboot_mtd} ${uboot_solo_file}
else
echo "u-boot file ${uboot_solo_file} not found"
fi
if [ -f ${kernel_solo_file} ]; then
echo "Flashing ${kernel_mtd} (uImage) with ${kernel_solo_file}..."
flash_erase ${kernel_mtd} 0 0
${flash_dir}/nandwrite.static -p ${kernel_mtd} ${kernel_solo_file}
else
echo "uImage file ${kernel_solo_file} not found"
fi
if [ -f ${rootfs_solo_file} ]; then
echo "Flashing ${rootfs_mtd} (rootfs) with ${rootfs_solo_file}..."
flash_erase -j ${rootfs_mtd} 0 0
${flash_dir}/nandwrite.static -p ${rootfs_mtd} ${rootfs_solo_file}
else
echo "rootfs file ${rootfs_solo_file} not found"
fi
fi
echo "Rebooting..."
${flash_dir}/upgrade-reboot
# Should not get here normally
echo "upgrade-reboot failed"
exit 1
}
# do flash on reboot if do_flash_upgrade exists
# and is owned by root
if [[ -f ${upgrade_fname} ]] ; then
owner=$(stat -c%u "${upgrade_fname}")
if ((${#owner} > 0)) && ((owner == 0)) ; then
flash_upgrade /var/volatile
flash_upgrade /media/card
# Look for upgrade on external media besides
# SD card.
cd /run/media
# See if there is a USB driver
last=$(dirname $(ls -d */flash-upgrade))
if ((${#last} > 0)) ; then
flash_upgrade "/run/media/${last}"
fi
fi
fi
umount_all
: exit 0
|