base-files: export x86 platform upgrade functions to common.sh
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
This commit is contained in:
Yousong Zhou
Felix Fietkau
parent
d53fcdefbf
commit
6f61d8511e
3 changed files with 95 additions and 96 deletions
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@ -206,6 +206,96 @@ get_magic_long() {
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(get_image "$@" | dd bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2>/dev/null
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}
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export_bootdevice() {
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local cmdline uuid disk uevent
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local MAJOR MINOR DEVNAME DEVTYPE
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if read cmdline < /proc/cmdline; then
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case "$cmdline" in
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*block2mtd=*)
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disk="${cmdline##*block2mtd=}"
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disk="${disk%%,*}"
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;;
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*root=*)
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disk="${cmdline##*root=}"
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disk="${disk%% *}"
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;;
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esac
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case "$disk" in
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PARTUUID=[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]-02)
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uuid="${disk#PARTUUID=}"
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uuid="${uuid%-02}"
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for disk in $(find /dev -type b); do
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set -- $(dd if=$disk bs=1 skip=440 count=4 2>/dev/null | hexdump -v -e '4/1 "%02x "')
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if [ "$4$3$2$1" = "$uuid" ]; then
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uevent="/sys/class/block/${disk##*/}/uevent"
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break
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fi
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done
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;;
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/dev/*)
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uevent="/sys/class/block/${disk##*/}/uevent"
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;;
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esac
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if [ -e "$uevent" ]; then
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. "$uevent"
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export BOOTDEV_MAJOR=$MAJOR
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export BOOTDEV_MINOR=$MINOR
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return 0
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fi
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fi
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return 1
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}
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export_partdevice() {
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local var="$1" offset="$2"
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local uevent MAJOR MINOR DEVNAME DEVTYPE
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for uevent in /sys/class/block/*/uevent; do
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. "$uevent"
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if [ $BOOTDEV_MAJOR = $MAJOR -a $(($BOOTDEV_MINOR + $offset)) = $MINOR -a -b "/dev/$DEVNAME" ]; then
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export "$var=$DEVNAME"
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return 0
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fi
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done
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return 1
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}
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get_partitions() { # <device> <filename>
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local disk="$1"
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local filename="$2"
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if [ -b "$disk" -o -f "$disk" ]; then
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v "Reading partition table from $filename..."
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local magic="$(hexdump -v -n 2 -s 0x1FE -e '1/2 "0x%04X"' "$disk")"
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if [ "$magic" != 0xAA55 ]; then
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v "Invalid partition table on $disk"
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exit
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fi
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rm -f "/tmp/partmap.$filename"
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local part
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for part in 1 2 3 4; do
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set -- $(hexdump -v -n 12 -s "$((0x1B2 + $part * 16))" -e '3/4 "0x%08X "' "$disk")
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local type="$(($1 % 256))"
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local lba="$(($2))"
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local num="$(($3))"
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[ $type -gt 0 ] || continue
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printf "%2d %5d %7d\n" $part $lba $num >> "/tmp/partmap.$filename"
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done
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fi
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}
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jffs2_copy_config() {
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if grep rootfs_data /proc/mtd >/dev/null; then
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# squashfs+jffs2
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@ -4,9 +4,9 @@
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move_config() {
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local partdev
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. /lib/upgrade/platform.sh
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. /lib/upgrade/common.sh
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if platform_export_bootdevice && platform_export_partdevice partdev 1; then
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if export_bootdevice && export_partdevice partdev 1; then
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if mount -t ext4 -o rw,noatime "/dev/$partdev" /mnt; then
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if [ -f /mnt/sysupgrade.tgz ]; then
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mv -f /mnt/sysupgrade.tgz /
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@ -1,64 +1,3 @@
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platform_export_partdevice() {
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local var="$1" offset="$2"
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local uevent MAJOR MINOR DEVNAME DEVTYPE
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for uevent in /sys/class/block/*/uevent; do
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. "$uevent"
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if [ $BOOTDEV_MAJOR = $MAJOR -a $(($BOOTDEV_MINOR + $offset)) = $MINOR -a -b "/dev/$DEVNAME" ]; then
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export "$var=$DEVNAME"
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return 0
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fi
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done
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return 1
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}
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platform_export_bootdevice() {
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local cmdline uuid disk uevent
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local MAJOR MINOR DEVNAME DEVTYPE
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if read cmdline < /proc/cmdline; then
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case "$cmdline" in
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*block2mtd=*)
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disk="${cmdline##*block2mtd=}"
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disk="${disk%%,*}"
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;;
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*root=*)
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disk="${cmdline##*root=}"
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disk="${disk%% *}"
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;;
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esac
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case "$disk" in
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PARTUUID=[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]-02)
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uuid="${disk#PARTUUID=}"
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uuid="${uuid%-02}"
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for disk in $(find /dev -type b); do
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set -- $(dd if=$disk bs=1 skip=440 count=4 2>/dev/null | hexdump -v -e '4/1 "%02x "')
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if [ "$4$3$2$1" = "$uuid" ]; then
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uevent="/sys/class/block/${disk##*/}/uevent"
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break
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fi
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done
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;;
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/dev/*)
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uevent="/sys/class/block/${disk##*/}/uevent"
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;;
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esac
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if [ -e "$uevent" ]; then
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. "$uevent"
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export BOOTDEV_MAJOR=$MAJOR
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export BOOTDEV_MINOR=$MINOR
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return 0
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fi
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fi
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return 1
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}
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platform_check_image() {
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[ "$#" -gt 1 ] && return 1
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@ -74,47 +13,17 @@ platform_check_image() {
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platform_copy_config() {
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local partdev
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if platform_export_partdevice partdev 1; then
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if export_partdevice partdev 1; then
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mount -t ext4 -o rw,noatime "/dev/$partdev" /mnt
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cp -af "$CONF_TAR" /mnt/
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umount /mnt
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fi
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}
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get_partitions() { # <device> <filename>
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local disk="$1"
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local filename="$2"
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if [ -b "$disk" -o -f "$disk" ]; then
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echo "Reading partition table from $filename..."
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local magic="$(hexdump -v -n 2 -s 0x1FE -e '1/2 "0x%04X"' "$disk")"
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if [ "$magic" != 0xAA55 ]; then
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echo "Invalid partition table on $disk"
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exit
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fi
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rm -f "/tmp/partmap.$filename"
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local part
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for part in 1 2 3 4; do
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set -- $(hexdump -v -n 12 -s "$((0x1B2 + $part * 16))" -e '3/4 "0x%08X "' "$disk")
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local type="$(($1 % 256))"
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local lba="$(($2))"
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local num="$(($3))"
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[ $type -gt 0 ] || continue
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printf "%2d %5d %7d\n" $part $lba $num >> "/tmp/partmap.$filename"
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done
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fi
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}
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platform_do_upgrade() {
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local diskdev partdev ibs diff
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if platform_export_bootdevice && platform_export_partdevice diskdev 0; then
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if export_bootdevice && export_partdevice diskdev 0; then
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sync
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if [ "$SAVE_PARTITIONS" = "1" ]; then
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get_partitions "/dev/$diskdev" bootdisk
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@ -143,7 +52,7 @@ platform_do_upgrade() {
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#iterate over each partition from the image and write it to the boot disk
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while read part start size; do
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if platform_export_partdevice partdev $part; then
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if export_partdevice partdev $part; then
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echo "Writing image to /dev/$partdev..."
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get_image "$@" | dd of="/dev/$partdev" ibs="$ibs" obs=1M skip="$start" count="$size" conv=fsync
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else
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