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Mario Palumbo
Asked: 2022-03-29 08:10:32 +0800 CST

grub2 terminal: redirect command output to file

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I refer to the syntax used by GRUB2, for example when you start a pendrive and you are presented with the GRUB2 terminal.
I would like to redirect the output of the lsmod command to a file in some persistent filesystem (e.g. to view later outside GRUB).
The word command > file does not work unlike the Linux Shell.
What is the equivalent for GRUB2?
There is nothing on the internet to give me the answer, otherwise I would not have posted the question here.

20.04

1 Answers

  1. The documentation of grub-mount states [emphasis mine]:

    Since GRUB intentionally contains no code for writing to file systems, it can easily provide a guaranteed read-only mount mechanism.

    My conclusion is it's not possible to save anything to a persistent file from within GRUB.

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