linux - Upgrading kernel, kernel selection problem

Question

In order to enable bbr, I plan to upgrade the Debian kernel. I don’t know how to choose when downloading the kernel.
Download address:
linux-image-4.9.0-3-amd64-dbg_4.9.30-2_amd64.deb 546M
linux-image-4.9.0-3-amd64_4.9.30-2_amd64.deb 37M

The size difference is huge, I don’t know what the difference is, which one to use

Answer 1

linux-image-4.9.0-3-amd64-dbg_4.9.30-2_amd64.deb

This is DebugPackage. If there are errors during development, you can print out the stack information

Usage scenario here: https://askubuntu.com/questio...