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fwupdate: temporarily mount new boot while running pre-upgrade scripts

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This commit is contained in:
Calin Crisan 2019-02-02 18:57:13 +02:00
parent b4700ef1e9
commit 4a68d5facd
1 changed files with 22 additions and 10 deletions
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32
board/common/overlay/sbin/fwupdate
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@ -5,8 +5,8 @@
function exit_usage() {
echo "Usage: fwupdate versions [-j] (lists available versions, optionally outputting json)"
echo " fwupdate current (shows the current version"
echo " fwupdate download <version|url|file> (downloads a firmware version)"
echo " fwupdate current (shows the current version)"
echo " fwupdate download <version|url|file> (downloads a firmware OS image)"
echo " fwupdate extract (extracts the downloaded firmware archive)"
echo " fwupdate flashboot (flashes the boot partition from extracted image)"
echo " fwupdate flashreboot (prepares for reboot + root partititon flash)"
@ -42,6 +42,7 @@ OS_CONF_FILE=/etc/init.d/os_conf
MIN_FREE_DISK=$((500*1024)) # 500 MB
VER_FILE=version
BOOT_INFO_FILE=boot_info
ROOT_INFO_FILE=root_info
BOOT_READY_FILE=boot_flash_ready
@ -50,6 +51,9 @@ FW_FILE_GZ=firmware.img.gz
FW_FILE_XZ=firmware.img.xz
FW_FILE_EXTR=firmware.img
TMP_BOOT_DIR=/tmp/fwupdate_boot
TMP_ROOT_DIR=/tmp/fwupdate_root
CURL_LOG_FILE=curl.log
CURL_PID_FILE=curl.pid
@ -213,14 +217,19 @@ function download_status() {
function run_pre_upgrade() {
which losetup &>/dev/null || return 0
boot_start=$(cat ${FW_DIR}/${BOOT_INFO_FILE} | cut -d ' ' -f 1)
root_start=$(cat ${FW_DIR}/${ROOT_INFO_FILE} | cut -d ' ' -f 1)
tmp_mnt="/tmp/fwupdate_root"
loop="/dev/loop4"
pre_upgrade="${tmp_mnt}/usr/share/pre-upgrade/*"
boot_loop="/dev/loop3"
root_loop="/dev/loop4"
pre_upgrade="${TMP_ROOT_DIR}/usr/share/pre-upgrade/*"
mkdir -p ${TMP_BOOT_DIR}
mkdir -p ${TMP_ROOT_DIR}
losetup -o $((boot_start * 1024 * 1024)) ${boot_loop} ${FW_DIR}/${FW_FILE_EXTR}
losetup -o $((root_start * 1024 * 1024)) ${root_loop} ${FW_DIR}/${FW_FILE_EXTR}
mount ${boot_loop} ${TMP_BOOT_DIR}
mount ${root_loop} ${TMP_ROOT_DIR}
mkdir -p ${tmp_mnt}
losetup -o $((root_start * 1024 * 1024)) ${loop} ${FW_DIR}/${FW_FILE_EXTR}
mount ${loop} ${tmp_mnt}
if [[ -d ${pre_upgrade} ]]; then
for script in ${pre_upgrade}/*.sh; do
echo "running pre-upgrade script $(basename ${script})"
@ -234,8 +243,10 @@ function run_pre_upgrade() {
done
fi
umount ${tmp_mnt}
losetup -d ${loop}
umount ${TMP_BOOT_DIR}
umount ${TMP_ROOT_DIR}
losetup -d ${boot_loop}
losetup -d ${root_loop}
}
function do_extract() {
@ -370,6 +381,7 @@ function do_flash_boot() {
root_start=$((${root_info[1]} / 2048)) # in MB
root_size=$((${root_info[3]} / 1048576)) # in MB
echo ${boot_start} ${boot_size} > ${FW_DIR}/${BOOT_INFO_FILE}
echo ${root_start} ${root_size} > ${FW_DIR}/${ROOT_INFO_FILE}
reallocate_boot_part