Hybrid MBR is kind of accepted hack, that defines (subset) of partitions both in MBR and in GPT. It is primarily used in cases when we want to use GPT, but some part of the system (like bootloader) supports only MBR. This thing is not standardized so different OSes can react differently to this it. Thus, it should be used only if there are no other options.
This patch was made with intention to be able to create Raspberry Pi Zero boot images.
Hybrid MBR is kind of accepted hack, that defines (subset) of partitions both in MBR and in GPT. It is primarily used in cases when we want to use GPT, but some part of the system (like bootloader) supports only MBR. This thing is not standardized so different OSes can react differently to this it. Thus, it should be used only if there are no other options.
This patch was made with intention to be able to create Raspberry Pi Zero boot images.