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For network booting, the according Foundation tutorial describes how one modifies the boot/config.txt on a "standard" SD installation to program the OTP memory in order to enable USB Host boot (by default, only USB device boot seems to be enabled).

In order to save the time needed to write a full-fledged O/S on a SD just for installation, I'd like to create a minimal SD that simply sets the necessary OTP bits.

Hence, does bootcode.bin interpret program_usb_boot_mode=1 in boot/config.txt?

Or, even better, is boot/config.txt on its own already sufficient?

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  • Have you tried?
    – joan
    Nov 29, 2017 at 15:57
  • How long does it take to install Raspbian-lite? How long to make a custom SD?
    – Milliways
    Nov 29, 2017 at 22:58

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