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OOWOW Online-installation images

Basic Requirements

System must workable for any board revision
Image writing size small as possible, no need to rewrite the whole eMMC content, same as writing unused empty spaces
Image writing size not be bigger what's possible smallest storage board configurations
Any private data not allowed
Any malware spyware etc … will be banned
Clean trash, logs, cache, etc … before packing installation image
Use optimal compression via xze
Use meta descriptions for images via xze
Basic Khadas file-name format for installation images
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Try to make the installation image size small as possible

The simple dump from EMMC is the wrong way. Yes we can do it but, this image will have negative parts like:

It's possible to improve by dump-optimization, but don't have any warranty to get quality results

for Fenix builds need to use normal partitions (like GPT or DOS ) please don’t use Amlogic partitions variant (just if its really necessary)

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Choose install type:
2. SD-USB - Image For Writing to SD/USB Storage
...
Compress image:
Yes

Compress image option, automatically build image suitable for OOWOW

Prepare all content on eMMC (clean cached, temp, logs, files manually by hand)
Boot into OOWOW
Before make dump from eMMC need make some optimization via OOWOW ⇒ shell RESIZE=1 mmc_optimize
Make an eMMC dump to SD/USB it will be automatically decreased as possible
Repack it by xze, if need to use it for online installation

Be sure your system must resize root-fs back to maximal size automatically at 1st boot, for example resize2fs /dev/rootfs

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SYNTAX:  boardname-system[-info]+.img[.xz|gz|zst]

All in lowercase only, use '-' as splitter, no spaces, no Unicode only basic Latin chars, file-name size less 80 symbols.