Let to check if they are have same binary sequence: $ for i in $(cat output.txt) do printf "\x$i" done > mylrz Now let to convert this text back to binary to confirm it is working: We need to remove the “00xxxxx: ” from beginning of each line and the 16 chars representation at end of each line: Now let to convert it from binary to text: Hmm, this is 59792 bytes long, no problem I hope. So, let to do it, first thing to do is download the package containing the lrz program ( lrzsz_0.12.20-1_ar71xx.ipk). The remaining option is using hexdump (xxd) to convert the binary on text bytes and the recover it, as I suggested some times ago (link in Portuguese). Unfortunately I cannot use base64 program, because it also is not install on this Linux system. The “lrz” program is relatively small, about 60KB, then I can convert it to text and past on Linux terminal running inside de box (using echo and pasting text). Unfortunately we are not lucky, the linux system on this router doesn’t have “lrz” program installed. Then we need to find another alternative. Image loaded from 80060000-802e82d8Īs you can see it is not entering on U-Boot prompt because CONFIG_AUTOBOOT_KEYED is not defined. Image Type: MIPS Linux Kernel Image (lzma compressed) # main_loop: no define CONFIG_AUTOBOOT_KEYED You only have access to it is using serial cable.įirst thing you think is to use U-Boot transfer support over serial, but unfortunately you don’t have this option: Imagine a scenario where you have a device running an embedded Linux system, but you flashed a bad firmware which doesn’t let you to have access to Ethernet/WiFi on this device.
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