如何使用核心命令行參數設置 sysctl？

是否可以使用核心命令行（在 中可見的那些）設置 Linux 核心sysctl設置（通常在 中設置）？/etc/sysctl.d``/proc/cmdline

（使用grub配置文件/etc/default/grub變數GRUB_CMDLINE_LINUX="..."。）

Sysctl 參數可以通過從核心版本5.8開始的核心命令行設置，這要感謝SUSE 的 Vlastimil Babka。

sysctl.*=       [KNL]
               Set a sysctl parameter, right before loading the init
               process, as if the value was written to the respective
               /proc/sys/... file. Both '.' and '/' are recognized as
               separators. Unrecognized parameters and invalid values
               are reported in the kernel log. Sysctls registered
               later by a loaded module cannot be set this way.
               Example: sysctl.vm.swappiness=40

引用自：https://unix.stackexchange.com/questions/558802