How to update-grub

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How to update-grub

18 July 2019, 15:37:50

Hello. New Artix user here. I installed Artix artix-lxqt-openrc-20181008-x86_64.iso, upgraded, and manually installed kde starting with plasma-desktop package. All is well with my system.

I need to modify the grub config file at /etc/default/grub. I have made my changes, but cant figure out how to update grub. What I normally do is enter update-grub and this will use the grub conf file to update /boot/grub/grub.cfg. But there is no update-grub on my system.

Grub is at version 2:2.04-1:

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[[email protected] ~]$ pacman -Q grub
grub 2:2.04-1

No update-grub:

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[[email protected] ~]$ sudo whereis grub
[sudo] password for dxrobertson: 
grub: /usr/lib/grub /etc/grub.d /usr/share/grub /usr/share/info/grub.info.gz
[[email protected] ~]$ sudo whereis update-grub
update-grub:
[[email protected] ~]$

Am I missing update-grub, or does Artix use a different method to update?

Thanks in advance.

Re: How to update-grub

Reply #1 – 18 July 2019, 15:49:43

I have seen guides on internet that uses this command set for grub update
Try this

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# pacman -S grub os-prober
# grub-install --recheck /dev/sda
# grub-mkconfig -o /boot/grub/grub.cfg

Re: How to update-grub

Reply #2 – 18 July 2019, 18:38:27

Thanks @cynicfm!

I recall using grub-mkconfig in the past but had forgotten about it. All I needed was to run grub-mkconfig, didn t need grub-install.

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

Re: How to update-grub

Reply #3 – 18 July 2019, 21:56:54

So you managed to update grub??/ If yes i am glad and very happy that i was able to help you with your concern

) Thanks

)))

Re: How to update-grub

Reply #4 – 19 July 2019, 13:16:40

BTW: Since I always had trouble because of the missing auto scan function in GRUB2 (e.g. after updating a kernel or replacing the root filesystem), I replaced it tonight with rEFInd. For now, everything works fine.

Re: How to update-grub

Reply #5 – 23 July 2019, 01:21:54

Quote from: cynicfm on 18 July 2019, 21:56:54

So you managed to update grub??/ If yes i am glad and very happy that i was able to help you with your concern ) Thanks )))

Yes, grub update success; thanks again!

To clarify and help others coming from other distros that may encounter lack of update-grub in Artix:

If you are used to entering:

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update-grub

Enter this instead:

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

Re: How to update-grub

Reply #6 – 21 September 2019, 23:16:24

I just spotted there is a /usr/bin/update-grub which is part of the Artix grub package. Sadly if you run update-grub it says command not found - because the file is not set as executable.
But at least you can do:

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$ sudo /bin/sh update-grub

( or su / doas etc as preferred) which does work! That's progress

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install -m0644 "${srcdir}/update-grub" "${pkgdir}/usr/bin"
install -m0755 "${srcdir}/update-grub" "${pkgdir}/usr/bin"

(Should be 0755 at the end of the PKGBUILD I think)

Re: How to update-grub

Reply #7 – 22 September 2019, 12:33:05

Yes, I see I now have update-grub in /usr/bin. Dated 07/31/2019 and exec permissions are not set on mine either. Thanks; will change permissions and start using this for updating grub.