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#
# Copyright (C) 2014 OpenWrt.org
#
platform_get_rootfs() {
local rootfsdev
if read cmdline < /proc/cmdline; then
case "$cmdline" in
*block2mtd=*)
rootfsdev="${cmdline##*block2mtd=}"
rootfsdev="${rootfsdev%%,*}"
;;
*root=*)
rootfsdev="${cmdline##*root=}"
rootfsdev="${rootfsdev%% *}"
;;
esac
echo "${rootfsdev}"
fi
}
platform_copy_config() {
case "$(board_name)" in
erlite)
mount -t vfat /dev/sda1 /mnt
cp -af "$UPGRADE_BACKUP" "/mnt/$BACKUP_FILE"
umount /mnt
;;
esac
}
platform_do_flash() {
local tar_file=$1
local board=$2
local kernel=$3
local rootfs=$4
mkdir -p /boot
mount -t vfat /dev/$kernel /boot
[ -f /boot/vmlinux.64 -a ! -L /boot/vmlinux.64 ] && {
mv /boot/vmlinux.64 /boot/vmlinux.64.previous
mv /boot/vmlinux.64.md5 /boot/vmlinux.64.md5.previous
}
echo "flashing kernel to /dev/$kernel"
tar xf $tar_file sysupgrade-$board/kernel -O > /boot/vmlinux.64
md5sum /boot/vmlinux.64 | cut -f1 -d " " > /boot/vmlinux.64.md5
echo "flashing rootfs to ${rootfs}"
tar xf $tar_file sysupgrade-$board/root -O | dd of="${rootfs}" bs=4096
sync
umount /boot
}
platform_do_upgrade() {
local tar_file="$1"
local board=$(board_name)
local rootfs="$(platform_get_rootfs)"
local kernel=
[ -b "${rootfs}" ] || return 1
case "$board" in
er)
kernel=mmcblk0p1
;;
erlite)
kernel=sda1
;;
*)
return 1
esac
platform_do_flash $tar_file $board $kernel $rootfs
return 0
}
platform_check_image() {
local board=$(board_name)
case "$board" in
er | \
erlite)
local tar_file="$1"
local kernel_length=$((tar xf $tar_file sysupgrade-$board/kernel -O | wc -c) 2> /dev/null)
local rootfs_length=$((tar xf $tar_file sysupgrade-$board/root -O | wc -c) 2> /dev/null)
[ "$kernel_length" = 0 -o "$rootfs_length" = 0 ] && {
echo "The upgrade image is corrupt."
return 1
}
return 0
;;
esac
echo "Sysupgrade is not yet supported on $board."
return 1
}
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