Arch Linux

CheesingJade

Member

Registered: 2021-09-08

Posts: 2

grub-mkconfig 40_custom syntax error

hello, I'm trying to update grub but when I do

grub-mkconfig -o /boot/grub/grub.cfg

either my arch kernel crash, or if I am on archiso I get
menuentry: command not found,

syntax error line 4 on 40_custom next to }

I cant get any info about that issue online, I tried to reinstall grub altogether but the problem percist.

my 40_custom file:

    menuentry 'Reboot System' --class restart {
        reboot
    }

    menuentry 'Shutdown System' --class shutdown {
        halt
    }

thx

Last edited by CheesingJade (2021-09-08 12:59:34)

Ferdinand

Member

From: Norway

Registered: 2020-01-02

Posts: 338

Re: grub-mkconfig 40_custom syntax error

It looks good to me, except I think the syntax is class=restart

Here's an explanation on that class thing with menuentries:
https://unix.stackexchange.com/question … -menuentry

I only used the basic syntax from the Arch wiki and that works good:
https://wiki.archlinux.org/title/GRUB#Custom_grub.cfg

---

Xfce ⬩ No CSD ⬩ Arch Forum Readme

schard

Forum Moderator

From: Hannover

Registered: 2016-05-06

Posts: 2,677

Website

Re: grub-mkconfig 40_custom syntax error

If this is your *entire* config file, you screwed it up, since it is required to contain a bash script.

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.

Last edited by schard (2021-09-08 13:32:09)

---

Inofficial first vice president of the Rust Evangelism Strike Force

CheesingJade

Member

Registered: 2021-09-08

Posts: 2

Re: grub-mkconfig 40_custom syntax error

If this is your *entire* config file, you screwed it up, since it is required to contain a bash script.

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.

I added the bash script to the beginning of 40_custom and now it works fine.
I don't know how it wasn't there in the first place since I never edited 40_custom but eh. Thanks for the help!