Modular init scripts

[ashthespy]

Looking at the init scripts, there is a lot of scope of simplification and having a modular approach. I believe @gkkpch already has done some work for the Installer images towards this.

Ideally I reckon we can just consolidate all these into init.vol with the current approach.

./scripts/initramfs/
├── init
├── init.nextarm
├── init.nextarm_tvbox
└── init.x86
# to just this
├── init.vol
└── vol
    └── inithelpers

If there truly things the need to be done at the board level, it should be possible to add things that are defined in <device>.sh that end up getting called from the init script.

Currently this is just a start, things are quite rough still -- I have reworked some bits -- added debugging -- module loading -- Fstab \boot updating -- Data part resizing

Still have to do the USB, update and MCU stuff, but I don't have devices to test them so..

[gkkpch]

Correct, I have a fully redesigned initramfs covering x86, PI and all other arm boards. For x86 and some non-PI boards testing has been a success, but I got stuck, due to lack of time (and motivation). Hope to finish this in Autumn, may need some optimisations (i'm not the best coder). Our initramfs handling is now much closer to the way the official Debian/ Ubuntu initramfs tools work. There is only one set of modules, no more seperate versions, plus debugging is a lot easier. I'll push my work into an initramfs branch when I'm home (near 20.08)

[gkkpch]

you'll find my work in branch vOS-initramfs

[ashthespy]

Wow, that is really a comprehensive piece work! I will use that as a base, and merge these bits in there..

Btw, I used a similar edit-initramfs.sh based on your work on init-edit.sh. But seemed to be running into issues with the cpio step.

Creating a new uInitrd, please wait...
cpio: File ./uInitrd.new grew, 13120452 new bytes not copied

Any ideas? Could it be because of the version of cpio being used isn't the same? (Ubuntu LTS 2.13 vs Buster 2.12)?

[gkkpch]

about the cpio issue: not sure, looks like it is trying to re-use the same file. And when you delete the original before running cpio and then create new?

Edit: sorry, it does create a new one everytine. Perhaps there is not enough room on the target partition?

[gkkpch]

post edited....

[ashthespy]

Thanks for the tips, got it working now. -- init-edit.sh was indeed recopying the old uInitrd into the new image.

I am going to close this PR and work on your vOS-initramfs branch in the coming weeks :-) Enjoy your vacation!