Posted by Grommish on Jul 19, 2020; 12:20am
URL: https://itus.accessinnov.com/FIRMWARE-Itus-Shield-v2-tp2014p2106.html

Gnomad wrote

Well I had to look up what those fs'es were, but looks very promising - nice work Grommish!!
I guess you're thinking a squashfs'd base image, with overlayfs to hold user configs & customisations?

I'll try give your 5.4 update a whirl today, report back how it goes :)

Yes..  Because it'll still allow for the f2fs (Flash-Friendly File System), which is MUCH better for the eMMC than standard ext3/ext4, while simplifying the update process.  With ext4, I was having to either short-size the partition to fit (because shoving a 850MB root file to flash into RAM wasn't an option), or hack up the sysupgrade system like I did previously.

using Squashfs and the Overlayfs means the upgrade file will be the size of the initramfs originally, but will scale.. - Or.. should ;D

If you run into issues, hit me up on Google Hangouts or Gmail.