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https://github.com/openwrt/openwrt.git
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8ac8c09f5e
The commented out code is not required, as the comment indicates. The purpose of this code seems to be to avoid issues caused by partially overwriting an existing UBI partition, where some of the erase counters would be reset but not the unmodified ones. This problem has been solved in a more generic way by the UBI EOF marker. This ensures that any old PEBs after the marker are properly initialized. It is therefore unnecessary to erase the whole partition before flashing a new OpenWrt factory image. Signed-off-by: Bjørn Mork <bjorn@mork.no>
103 lines
2.1 KiB
Bash
Executable File
103 lines
2.1 KiB
Bash
Executable File
linksys_get_target_firmware() {
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local cur_boot_part mtd_ubi0
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cur_boot_part="$(/usr/sbin/fw_printenv -n boot_part)"
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if [ -z "${cur_boot_part}" ]; then
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mtd_ubi0=$(cat /sys/devices/virtual/ubi/ubi0/mtd_num)
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case "$(grep -E "^mtd${mtd_ubi0}:" /proc/mtd | cut -d '"' -f 2)" in
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kernel|rootfs)
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cur_boot_part=1
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;;
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alt_kernel|alt_rootfs)
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cur_boot_part=2
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;;
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esac
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>&2 printf "Current boot_part='%s' selected from ubi0/mtd_num='%s'" \
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"${cur_boot_part}" "${mtd_ubi0}"
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fi
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# OEM U-Boot for EA6350v3, EA8300 and MR8300; bootcmd=
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# if test $auto_recovery = no;
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# then bootipq;
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# elif test $boot_part = 1;
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# then run bootpart1;
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# else run bootpart2;
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# fi
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case "$cur_boot_part" in
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1)
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fw_setenv -s - <<-EOF
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boot_part 2
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auto_recovery yes
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EOF
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printf "alt_kernel"
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return
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;;
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2)
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fw_setenv -s - <<-EOF
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boot_part 1
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auto_recovery yes
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EOF
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printf "kernel"
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return
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;;
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*)
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return
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;;
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esac
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}
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platform_do_upgrade_linksys() {
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local magic_long="$(get_magic_long "$1")"
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local rm_oem_fw_vols="squashfs ubifs" # from OEM [alt_]rootfs UBI
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local vol
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mkdir -p /var/lock
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local part_label="$(linksys_get_target_firmware)"
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touch /var/lock/fw_printenv.lock
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if [ -z "$part_label" ]; then
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echo "cannot find target partition"
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exit 1
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fi
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local target_mtd=$(find_mtd_part "$part_label")
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[ "$magic_long" = "73797375" ] && {
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CI_KERNPART="$part_label"
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if [ "$part_label" = "kernel" ]; then
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CI_UBIPART="rootfs"
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else
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CI_UBIPART="alt_rootfs"
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fi
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local mtdnum="$(find_mtd_index "$CI_UBIPART")"
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if [ ! "$mtdnum" ]; then
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echo "cannot find ubi mtd partition $CI_UBIPART"
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return 1
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fi
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local ubidev="$(nand_find_ubi "$CI_UBIPART")"
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if [ ! "$ubidev" ]; then
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ubiattach -m "$mtdnum"
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sync
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ubidev="$(nand_find_ubi "$CI_UBIPART")"
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fi
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if [ "$ubidev" ]; then
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for vol in $rm_oem_fw_vols; do
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ubirmvol "/dev/$ubidev" -N "$vol" 2>/dev/null
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done
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fi
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# complete std upgrade
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nand_upgrade_tar "$1"
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}
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[ "$magic_long" = "27051956" ] && {
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echo "writing \"$1\" image to \"$part_label\""
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get_image "$1" | mtd write - "$part_label"
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}
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}
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