mauron85 · September 8, 2019 19:16 · Feb 12, 2019
diff --git a/create_new_firmware.sh b/create_new_firmware.sh
@@ -0,0 +1,25 @@
+set -e
+flash_size_in_MB=8
+sysupgrade_OpenWRT="openwrt-18.06.1-ramips-mt76x8-tl-wr840n-v5-squashfs-sysupgrade.bin"
+art_file="upload_openwrt_art.bin"
+boot_loader="upload_openwrt_mtd0.bin"
+
+sysupgrade_OpenWRT_size=$(wc -c $sysupgrade_OpenWRT | cut -f 1 -d " ")
+art_file_size=$(wc -c $art_file | cut -f 1 -d " ")
+boot_loader_size=$(wc -c $boot_loader | cut -f 1 -d " ")
+
+
+echo "sysupgrade_OpenWRT_size: " $sysupgrade_OpenWRT_size
+echo "art_file_size: " $art_file_size
+echo "boot_loader_size: " $boot_loader_size
+
+padcount=$(($flash_size_in_MB * 1024 * 1024 - $boot_loader_size - $art_file_size - $sysupgrade_OpenWRT_size))
+
+echo " Write boot loader"
+dd if=$boot_loader bs=512 >> "${sysupgrade_OpenWRT}_dump".bin
+echo "Write firmware"
+dd if=$sysupgrade_OpenWRT bs=512 >> "${sysupgrade_OpenWRT}_dump".bin
+echo "Write padding FF"
+dd if=/dev/zero ibs=1 count="$padcount" | tr "\000" "\377" >> "${sysupgrade_OpenWRT}_dump".bin
+echo "Write art partition"
+dd if=$art_file bs=512 >> "${sysupgrade_OpenWRT}_dump".bin
diff --git a/firmware_bad.log b/firmware_bad.log
@@ -0,0 +1,31 @@
+fixed-partitions partitions found on MTD device spi0.0
+Creating 3 MTD partitions on "spi0.0":
+0x000000000000-0x000000020000 : "boot"
+0x000000020000-0x0000003f0000 : "firmware"
+2 tplink-fw partitions found on MTD device firmware
+0x000000020000-0x00000017d048 : "kernel"
+0x00000017d048-0x0000003f0000 : "rootfs"
+mtd: device 3 (rootfs) set to be root filesystem
+1 squashfs-split partitions found on MTD device rootfs
+0x0000003b0000-0x0000003f0000 : "rootfs_data"
+0x0000003f0000-0x000000400000 : "factory"
+
+m25p80 spi0.0: s25fl064k (8192 Kbytes)
+
+VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
+Freeing unused kernel memory: 208K
+This architecture does not have kernel memory protection.
+init: Console is alive
+init: - watchdog -
+random: fast init done
+kmodloader: loading kernel modules from /etc/modules-boot.d/*
+kmodloader: done loading kernel modules from /etc/modules-boot.d/*
+init: - preinit -
+rt3050-esw 10110000.esw: link changed 0x00
+random: procd: uninitialized urandom read (4 bytes read)
+jffs2: Too few erase blocks (4)  --> Your image is probably too big, leaving not enough space for jffs2.
+mount_root: failed to mount -t jffs2 /dev/mtdblock4 /tmp/overlay: Invalid argument
+mount_root: overlay filesystem has not been fully initialized yet
+mount_root: switching to jffs2 overlay
+mount_root: switching to jffs2 failed - fallback to ramoverlay
+urandom-seed: Seed file not found (/etc/urandom.seed)
diff --git a/firmware_bad_no_overlay.log b/firmware_bad_no_overlay.log
@@ -0,0 +1,7 @@
+root@OpenWrt:~# df -h
+Filesystem                Size      Used Available Use% Mounted on
+/dev/root                 2.3M      2.3M         0 100% /rom
+tmpfs                    29.5M    532.0K     29.0M   2% /tmp
+tmpfs                    29.5M     56.0K     29.5M   0% /tmp/root
+overlayfs:/tmp/root      29.5M     56.0K     29.5M   0% /
+tmpfs 
diff --git a/firmware_good.log b/firmware_good.log
@@ -0,0 +1,17 @@
+root@OpenWrt:~# df -h
+Filesystem                Size      Used Available Use% Mounted on
+/dev/root                 2.3M      2.3M         0 100% /rom
+tmpfs                    29.5M    540.0K     29.0M   2% /tmp
+/dev/mtdblock4            4.1M    304.0K      3.8M   7% /overlay
+overlayfs:/overlay        4.1M    304.0K      3.8M   7% /
+tmpfs                   512.0K         0    512.0K   0% /dev
+root@OpenWrt:~# 
+root@OpenWrt:~# cat /proc/mtd
+dev:    size   erasesize  name
+mtd0: 00020000 00010000 "boot"
+mtd1: 007a0000 00010000 "firmware"
+mtd2: 0015d05b 00010000 "kernel"
+mtd3: 00642fa4 00010000 "rootfs"
+mtd4: 00410000 00010000 "rootfs_data"
+mtd5: 00010000 00010000 "config"
+mtd6: 00030000 00010000 "factory"