[reTerminal] Unable to install overlay on any supported OS because Kernel upgrades to 6.1

[franzos]

Describe the bug

Whenver I run the scripts, the kernel is automatically updated to 6.1 even though only 5.10/5.15 is "officially" supported.

cd /tmp
git clone --depth 1 https://github.com/Seeed-Studio/seeed-linux-dtoverlays
./scripts/reTerminal.sh

To Reproduce

1. Download last 5.10 kernel image (Linux raspberrypi 5.10.92-v8+)
2. Hold packages, to make sure they are not upgraded

apt-mark hold raspberrypi-bootloader raspberrypi-kernel raspberrypi-kernel-headers
raspberrypi-bootloader set on hold.
raspberrypi-kernel set on hold.
raspberrypi-kernel-headers set on hold.

3. Run above script

Kernel is replaced:

Unpacking raspberrypi-kernel (1:1.20230405-1) over (1:1.20220120-1) ...

Expected behavior

For Raspberry Pi users, it is advised not to use version 6.1 and instead stick to the previous version 5.10

• According to SEEED forum, Kernel 5.10 is the latest supported ref
• According to this repo, 5.15, maybe even 6.1 should work

Image should work according to official docs.

[franzos]

I didn't realize that there was an option to skip kernel updates

./scripts/reTerminal.sh --keep-kernel

Maybe this should be documented better.