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4436d7bae8
Ensure, that kernel update is performed atomically on filesystem, to reduce likelihood of failure if power-cut occurs during sysupgrade. If kernel update fails for whatever reason, skip updating rootfs as well. Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
67 lines
1.3 KiB
Bash
67 lines
1.3 KiB
Bash
#
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# Copyright (C) 2010-2013 OpenWrt.org
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#
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rootpartuuid() {
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local cmdline=$(cat /proc/cmdline)
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local bootpart=${cmdline##*root=}
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bootpart=${bootpart%% *}
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local uuid=${bootpart#PARTUUID=}
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echo ${uuid%-02}
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}
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bootdev_from_uuid() {
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blkid | grep "PTUUID=\"$(rootpartuuid)\"" | cut -d : -f1
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}
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bootpart_from_uuid() {
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blkid | grep $(rootpartuuid)-01 | cut -d : -f1
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}
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rootpart_from_uuid() {
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blkid | grep $(rootpartuuid)-02 | cut -d : -f1
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}
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imx_sdcard_mount_boot() {
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mkdir -p /boot
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[ -f /boot/uImage ] || {
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mount -o rw,noatime $(bootpart_from_uuid) /boot > /dev/null
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}
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}
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imx_sdcard_copy_config() {
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imx_sdcard_mount_boot
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cp -af "$UPGRADE_BACKUP" "/boot/$BACKUP_FILE"
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sync
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umount /boot
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}
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imx_sdcard_do_upgrade() {
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local board_dir="$(tar tf "${1}" | grep -m 1 '^sysupgrade-.*/$')"
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board_dir="${board_dir%/}"
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imx_sdcard_mount_boot
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get_image "$1" | tar Oxf - ${board_dir}/kernel > /boot/uImage-new && \
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mv /boot/uImage-new /boot/uImage && \
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sync && \
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get_image "$1" | tar Oxf - ${board_dir}/root > $(rootpart_from_uuid) && \
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sync
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umount /boot
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}
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imx_sdcard_pre_upgrade() {
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[ -z "$UPGRADE_BACKUP" ] && {
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jffs2reset -y
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umount /overlay
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}
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}
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imx_sdcard_move_config() {
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if [ -b $(bootpart_from_uuid) ]; then
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imx_sdcard_mount_boot
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[ -f "/boot/$BACKUP_FILE" ] && mv -f "/boot/$BACKUP_FILE" /
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umount /boot
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fi
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}
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