<https://forum.armbian.com/topic/7498-nanopc-t4/page/4/#comment-77801>
<http://schema.org/text>
"Help to understand with boot process. I watch documentation from rockchip. There it is specified that several gpt partitions have to be created. I take a sd-card with the image of the armbian which is written down on it. I start the gdisk. I receive result:\n \n\n\nGPT fdisk (gdisk) version 1.0.1\n\nPartition table scan:\n  MBR: MBR only\n  BSD: not present\n  APM: not present\n  GPT: not present\n\n\n***************************************************************\nFound invalid GPT and valid MBR; converting MBR to GPT format\nin memory.\n***************************************************************\n\nDisk /dev/sdd: 31176704 sectors, 14.9 GiB\nLogical sector size: 512 bytes\nDisk identifier (GUID): 1239DBE7-E7AC-4D30-B146-AEF177251577\nPartition table holds up to 128 entries\nFirst usable sector is 34, last usable sector is 31176670\nPartitions will be aligned on 2048-sector boundaries\nTotal free space is 344477 sectors (168.2 MiB)\n\nNumber  Start (sector)    End (sector)  Size       Code  Name\n   1           32768        30864927   14.7 GiB    8300  Linux filesystem\n\n\n\t \n\tWhy so? It is really necessary to create the mbr partition?\n \n"
<https://forum.armbian.com/topic/7498-nanopc-t4/page/4/?tab=comments#comment-77823>