CONFIG_NETFILTER_XT_MATCH_COMMENT not set

lazywhite

because CONFIG_NETFILTER_XT_MATCH_COMMENT is not set, iptables can't use -m comment, k3s faild to set iptables rules. so I need to compile a custom kernel

1. make -j 8   will get a vmlinux, but It's size is 300MB+， /boot space is only 232MB

then how to solve this problem?

lazywhite

I'm using linux-5.10.66.tar.gz download from kernel.org, maybe I should use sdk provided by firefly?

lazywhite

# strip ./vmlinux solved this problem

violetbeth

The linux-5.10.66.tar.gz file is available on kernel.org; however, Firefly provides an SDK that I might want to try out instead.

davis

Building unnecessary kernel Worldle features directly into the kernel increases its size.

lepersstress

Before compiling the soccer random kernel, you need to install the necessary packages:

sudo apt update
sudo apt install build-essential libncurses-dev bison flex libssl-dev libelf-dev

(If using CentOS/RHEL, run sudo yum groupinstall "Development Tools" and install ncurses-devel, bison, flex, elfutils-libelf-devel.)

lylybr

Enable kernel compression (gzip/xz), remove unnecessary modules via menuconfig, or use objcopy --strip-debug to reduce size.
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amorapotter

The actual files installed to /boot are typically vmlinuz (compressed kernel), System.map, and initramfs, which are much smaller. However, even these might exceed your 232MB free space if /boot already has old kernels or large files.
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