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linux - Difference between wic and hddimg format in yocto - Stack Overflow
There was not much info about online, so I asked this question in the intel community and here is the response of that: Generally a .wic image is intended to be installed directly to its final destination, whereas an hddimg is for evaluation and installation elsewhere. By default meta-intel .wic images only have an EFI bootloader, and will not boot via legacy BIOS. An hddimg will have both an EFI bootloader and the syslinux binaries that let it boot from legacy BIOS. On startup with your installer USB image do you get a light gray screen with four options? If so it is booting via legacy BIOS.
june 2018 by junyi.liu
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