[SOLVED] - GRUB2 kernel boot parameters

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warron.french
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[SOLVED] - GRUB2 kernel boot parameters

Post by warron.french » 2020/10/15 17:39:19

Where can I get a complete list of all of the parameters given on the linux16 directive line for a menuentry in /boot/grub2/grub.cfg?

For example, from this syntax:

Code: Select all

linux16 /vmlinuz-3.17.4-301.fc21.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap rd.lvm.lv=fedora/root rhgb quiet LANG=en_US.UTF-8
Where would I find an explanation of ro, rd.lvm.lv, rhgb or quiet?

I have read over 15 different websites and none of them give me a consolidated list (deprecated or current) and their purposes. This is what I am trying to resolve.

P.S. The are called kernel boot parameters right?
Last edited by warron.french on 2020/10/16 15:15:12, edited 1 time in total.
Thanks,
War

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TrevorH
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Re: GRUB2 kernel boot parameters

Post by TrevorH » 2020/10/15 19:27:08

man dracut.cmdline will tell you most. You can also read /usr/share/doc/kernel-doc-3.10.0/Documentation/kernel-parameters.txt for kernel specific things but it would appear that file is no longer shipped with el8 or Fedora 32.
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warron.french
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Re: GRUB2 kernel boot parameters

Post by warron.french » 2020/10/15 19:42:16

Awesome, thanks @TrevorH.
Thanks,
War

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