Hi, thanks for replying. Here are the outputs from a SSH session in KodiBuntu...
birchy@kodi:~$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Thread(s) per core: 2
Core(s) per socket: 1
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 15
Model: 4
Stepping: 9
CPU MHz: 2990.486
BogoMIPS: 5980.97
L1d cache: 16K
L2 cache: 1024K
NUMA node0 CPU(s): 0,1
Display More
birchy@kodi:~$ getconf LONG_BIT
64
...so I'm positive the DC7600 is 64-bit capable. The image I am using is:
LibreELEC-Generic.x86_64-7.0.2.img
I believe this should be compatible with my hardware?? I've disabled "Quickboot" in BIOS settings but still no joy. The Debian installer boots within seconds from an identical USB stick, so I'm at a loss to why the LE stick won't boot. Gparted (on my desktop PC) does complain about the LE stick having GPT tables, but I click "ignore" when prompted to fix them. The Debian stick does not do this. Also worth mentioning is that the LE stick has the first partiton as 512MB FAT16 with the "legacy_boot" flag, however the Debian stick has "unknown" filesystem (1.22GB) and "boot,hidden" flags.
I'm going to try changing the flags on the LE stick to see if that helps. I'm thinking it may be BIOS related as the LE stick boots fine on my AMD64 machine.
If that fails, what's the next step?