Boot process

[CLC]

I would like to completely clean my eMMC to start all over again with dd the boot files, but how should I partition the eMMC before that? Do I make a single ext4 partition or do I need a fat 16?
I have been reading a lot about booting the PBP but did not find any reference to the partitioning, perhaps it is so obvious that nobody mentions that, sorry for my ignorance.

This is my lsblk:
[carlos@pinebook ~]$ lsblk
NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
loop0          7:0    0  85.8M  1 loop /var/lib/snapd/snap/core/9670
loop1          7:1    0 107.2M  1 loop /var/lib/snapd/snap/opencpn/257
mmcblk2      179:0    0  58.2G  0 disk
├─mmcblk2p1  179:1    0  3.9M  0 part
├─mmcblk2p2  179:2    0    64K  0 part
├─mmcblk2p3  179:3    0    4M  0 part
├─mmcblk2p4  179:4    0    4M  0 part
├─mmcblk2p5  179:5    0    4M  0 part
└─mmcblk2p6  179:6    0  112M  0 part
mmcblk2boot0 179:32  0    4M  1 disk
mmcblk2boot1 179:64  0    4M  1 disk
mmcblk1      179:96  0  29.7G  0 disk
├─mmcblk1p1  179:97  0 213.6M  0 part /boot
└─mmcblk1p2  179:98  0  29.5G  0 part /
zram0        252:0    0  5.5G  0 disk [SWAP]
nvme0n1      259:0    0 465.8G  0 disk
├─nvme0n1p1  259:1    0 227.3G  0 part
└─nvme0n1p2  259:2    0 238.5G  0 part
[carlos@pinebook ~]$

I want to install Manjaro on nvmep2 with boot from eMMC, no is working with SD card and the Manjaro image I want to transfer to the nvme
Thanks for any help!

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>sorry for my ignorance.... It is not at all clear what all happens
Most images have the first 16M within, written to raw device (no p1 or p2)
http://opensource.rock-chips.com/wiki_Boot_option
note,, 0x40 = 64 sectors ,, 0x4000(sectors) = 8MB ,, 0x6000(sectors) = 12MB
user partitions start at 32768 sectors ,, 16MB  , but not manjaro
Is it room for a future efi system partition (ESP)??

Hi wdt,
Thanks for your reply. Unfortunately, it is very interesting, but your link is far beyond my background knowledge.
If I understand, you mean that if I reproduce the content of my SD card in the eMMC it would work, as all needed is there?
It make sense since with eMMC disabled I can boot from SD. So I could sync some how SD to eMMC (after erasing eMMC content) and it should work.
That will be simple, once I study sync commands and options.
(The SD card has Manjaro installed and working)