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I created two GPT partitions in /dev/mmcblk0boot0 device. Now I want to format one of them. But I don't have any idea how to access to a single partition. When I created partitions on "normal" device like sda, the partitions would be available as sda0, sda1 etc.

How can I access a single partition?

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mmcblk0boot is a (special) partition itself, so you should not create partitions there. Instead, create partitions on /dev/mmcblk0. These partitions should show up as /dev/mmcblk0p1, /dev/mmblk0p2, etc.

  • I'm aware this is special eMMC boot partition but in our project we make use of it. Anyway I found a solution. It is possible to map the partitions inside mmcblk0boot using kpartx. – Łukasz Iwanecki Mar 5 '18 at 15:31

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