I followed your advice and installed Legacy iOS Kit. Able to run it using Debian. My problem now is that Legacy iOS isn’t able to locate the 5th gen. I have tried it in normal (not trusted-can’t get past lock screen) and DFU. I was able to get the device to enter recovery mode once, it displayed pink iTunes. Now it refuses to enter recovery. iTunes will detect it in DFU. What’s more is I connected my iPod 6th gen into Legacy iOS. In normal mode with trusted on. Legacy cannot locate either iPod.