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Discover linux kernel boot options

Discover linux kernel boot options

Is there a cross-distribution way to know the boot parameters supplied to the kernel?

Asked by: Guest | Views: 28
Total answers/comments: 1
Guest [Entry]

"Assuming you're asking about the options passed to the current-running kernel?

If the /proc filesystem is in use, /proc/cmdline tells you exactly what options were passed to the kernel.

$ cat /proc/cmdline
root=UUID=3630dd43-f9f9-40b1-8a5f-72c13f2b309c ro quiet splash

If there's no /proc filesystem, you can get an idea by finding the current kernel's entry in grub.conf or other bootloader configuration. (Use ""uname -r"" to see what kernel is currently running.) This won't tell you what WAS used to boot the current kernel, just what is NORMALLY used."