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software:oowow:dev:oowow-online-installation-images

This is an old revision of the document!


OOWOW Online-installation images

Basic Requirements

WIP:

Image Size

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:

  • some garbage in unused space
  • same fill EMMC size which will be written as is

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

Partitions

Fenix Builds

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

...
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

WIP:

Dump optimization

  • 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 /opt/mmc_optimize
  • Make a eMMC dump to SD/USB its 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

See also

Last modified: 2023/07/05 05:05 by hyphop