Reflash Raspberry with SquashFS

For Developers
1

I've got a little problem which makes me confused.

I create a custom OpenWrt image, i follow all build instructions and i can create a running image for a raspberry pi 2 model b. I use the git sources from branch 23-05.

I can make modifications and i can flash the new ext4 image onto my sd card. I boot the raspberry and everthing works fine.

So, i use the created SquashFS image, i flash it to the sd card, the raspberry boots and it do all firstboot actions. Everything works fine.

So, now my problem. I do some modifications at custom files and i use make to rebuild the image. I use the new created squashfs image for my sd card.
I boot the raspberry with the newly flashed disk, but the firstboot actions are not done and the old configuration is not overwriten.

I can reflash with the squashfs image, but the raspberry device holds the files and does not change the configuration.

Has anyone any ideas what i am doing wrong?

Greetings, Tom

2

How exactly do you "use the new created squashfs image for my sd card"?

3

That was on the ext4 card.

It is, practically, impossible to clean those; it is easier to flash it with Raspberry OS and then flash back to OpenWrt.

If it was a SquashFS install just run firstboot then reboot.

4

I do it with "make -j$(nproc)" in buildroot.
I also test with "make -j$(nproc) defconfig download clean world" but also same result.

The problem only with squashfs. I don't want to fire manually "firstboot && reboot". So i am searching for my mistake...

5

I added an init.d script which detects the boot state. I save the state to the uci config and if we are in firstboot state, i fire firstboot && reboot.

That was the only solution which worked for me.

Can be close now. Thx all.

6

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