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ramips: append tail to WF2881 initramfs image

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Stock firmware has a vendor-defined tail at the end of uImage for image
validation. This patch enables OpenWrt installation from stock firmware
without having to access the UART console.

Installation via web interface:
1.  Flash **initramfs** image through the stock web interface.
2.  Boot into OpenWrt and perform sysupgrade with sysupgrade image.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
(cherry picked from commit be3e98ce26)
This commit is contained in:
Sungbo Eo 2020-02-07 20:26:05 +09:00 committed by Adrian Schmutzler
parent 8fa6107aee
commit 2d3a93335a
1 changed files with 8 additions and 0 deletions
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8
target/linux/ramips/image/mt7621.mk
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@ -60,6 +60,12 @@ define Build/wr1201-factory-header
mv $@.new $@ mv $@.new $@
endef endef
define Build/netis-tail
echo -n $(1) >> $@
echo -n $(UIMAGE_NAME)-yun | $(STAGING_DIR_HOST)/bin/mkhash md5 | \
sed 's/../\\\\x&/g' | xargs echo -ne >> $@
endef
define Build/ubnt-erx-factory-image define Build/ubnt-erx-factory-image
if [ -e $(KDIR)/tmp/$(KERNEL_INITRAMFS_IMAGE) -a "$$(stat -c%s $@)" -lt "$(KERNEL_SIZE)" ]; then \ if [ -e $(KDIR)/tmp/$(KERNEL_INITRAMFS_IMAGE) -a "$$(stat -c%s $@)" -lt "$(KERNEL_SIZE)" ]; then \
echo '21001:6' > $(1).compat; \ echo '21001:6' > $(1).compat; \
@ -544,6 +550,8 @@ define Device/wf-2881
IMAGE_SIZE := 129280k IMAGE_SIZE := 129280k
KERNEL := $(KERNEL_DTB) | pad-offset $$(BLOCKSIZE) 64 | uImage lzma KERNEL := $(KERNEL_DTB) | pad-offset $$(BLOCKSIZE) 64 | uImage lzma
UBINIZE_OPTS := -E 5 UBINIZE_OPTS := -E 5
UIMAGE_NAME := WF2881_0.0.00
KERNEL_INITRAMFS := $(KERNEL_DTB) | netis-tail WF2881 | uImage lzma
IMAGE/sysupgrade.bin := append-kernel | append-ubi | append-metadata | check-size $$$$(IMAGE_SIZE) IMAGE/sysupgrade.bin := append-kernel | append-ubi | append-metadata | check-size $$$$(IMAGE_SIZE)
DEVICE_TITLE := NETIS WF-2881 DEVICE_TITLE := NETIS WF-2881
DEVICE_PACKAGES := kmod-mt76x2 kmod-usb3 kmod-usb-ledtrig-usbport wpad-basic DEVICE_PACKAGES := kmod-mt76x2 kmod-usb3 kmod-usb-ledtrig-usbport wpad-basic