the chroot wiki bit assumes you’ve got a unbootable system and are looking for a rescue, hence you’re reinstalling grub.
You can do so from your terminal at any time, which will install the current grub package:
sudo grub-install
followed by:
sudo grub-mkconfig Answer from GeorgeB on forum.manjaro.org
GitHub
gist.github.com › dianjuar › a6e0d801a9f71f8edc06321178390320
Restore the GRUB Bootloader on Manjaro Linux. Usefull when your fresh windows install eats your grub and can not boot into your linux installation, or for some how your grub is missing · GitHub
@#&#&@# problem solved, I don't know how it happends but in bios my first boot drive was changed to other hd🤦 ... Boot into Manjaro installer Open terminal sudo manjaro-chroot -a (and select system to mount) grub-install /dev/sda (it's sda ...
Repair Grub easy GUI way?
Have you tried running sudo update-grub
More on reddit.com 15
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September 21, 2019Reinstall grub2
Hi I lost my boot sector so I need to reinstall grub. I got my install booting by installing another instance of Manjaro on another disk which found the old install so I can boot directly into to old Manjaro. I tried sudo grub-install /dev/sdc this gave this error: Installing for i386-pc platform. ... More on forum.manjaro.org
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September 23, 2020GRUB Bootloader Wiederherstellen
Hallo, wie stellt man den GRUB Bootloader wieder her, nachdem eine Debian-Installation Manjaro nicht mehr zum Booten vorschlägt? Ich kenne zwar diese Seite: GRUB/Den GRUB Bootloader Wiederherstellen - Manjaro Dort habe ich mich lange herumgequält - hatte aber keinen Erfolg. More on forum.manjaro.org
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September 10, 2022Regenerate Grub after Windows install
Hello I’ve installed windows and Grub was removed ☹ Can U help me with recover it? My partitions are: [manjaro-gnome manjaro]# lsblk -o PATH,PARTTYPE,FSTYPE,PARTTYPENAME PATH PARTTYPE FSTYPE PARTTYPENAME /dev/loop0 squashfs /dev/loop1 squashfs /dev/loop2 squashfs /dev/loop3 squas... More on forum.manjaro.org
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March 3, 2024DEV Community
dev.to › letstalkoss › manjaro-how-to-reinstall-grub-on-a-btrfs-and-uefi-system-52nm
Manjaro: How to Reinstall GRUB on a BTRFS and UEFI System - DEV Community
January 22, 2026 - Now that all subvolumes and partitions ... following commands: sudo chroot /mnt grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=Manjaro --recheck grub-mkconfig -o /boot/grub/grub.cfg...
Manjaro
wiki.manjaro.org › index.php › Special:MyLanguage › Restore_the_GRUB_Bootloader
GRUB/Restore the GRUB Bootloader - Manjaro
January 11, 2024 - To fix what ever caused this you should run a full system update including grub to ensure everything is in place. ... On a BIOS/GPT system there is no MBR and therefore no place to store the loader.
Manjaro
archived-wiki.manjaro.org › index.php
GRUB/Restore the GRUB Bootloader - Manjaro Linux
August 3, 2020 - EFI variables are not supported on this system. Then install the efibootmgr, dosfstools and grub packages and try steps 4 and 5 again. If it still doesn't work, then try exiting the chroot environnment by typing exit, then loading the efivarfs module: ... grub-install --target=x86_64-efi ...
Manjaro
wiki.manjaro.org › index.php › GRUB › Restore_the_GRUB_Bootloader › fr
GRUB/Restaurer le programme de d'amorçage GRUB - Manjaro
May 21, 2024 - La spécification de partition GPT permet une partition non formatée du type de partition de démarrage du BIOS (0xEF02). La taille de cette partition peut être aussi petite que 1 megaoctet. Le programme d'installation Calamares utilise une taille fixe de 32 megaoctet. Sur un système BIOS/MBR, une partie du chargeur de d'amorçage est écrite dans le Master Boot Record du disque primaire. Le périphérique est le disque (pas une partition) root # grub-install --force --target=i386-pc --recheck --boot-directory=/boot /dev/sdy COPY TO CLIPBOARD
Veen
blog.veen.world › blog › 2025 › 03 › 22 › 🚀-how-to-update-grub-and-regenerate-initramfs-from-a-manjaro-live-usb-system-🐧
🚀 How to Update GRUB and Regenerate Initramfs from a Manjaro Live USB System 🐧 – Kevin's Blog
March 22, 2025 - grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=manjaro --recheck update-grub ... That’s it! 🎯 Your Manjaro system should now boot up smoothly.
Reddit
reddit.com › r/manjarolinux › repair grub easy gui way?
r/ManjaroLinux on Reddit: Repair Grub easy GUI way?
September 21, 2019 -
When I used Linux mint there was a easy way to fix the grub loader by using the boot repair package and you just had to install it and run it and it did its thing. Is there a easy way on manjaro? I have installed Windows 10 and then after installed Manjaro both in UEFI mode but when I boot my computer I get no dual boot option and it boots right into manjaro.
UPDATE: Read post below.
Manjaro Linux
forum.manjaro.org › support
Reinstall grub2 - Support - Manjaro Linux Forum
September 23, 2020 - I got my install booting by installing another instance of Manjaro on another disk which found the old install so I can boot directly into to old Manjaro. I tried sudo grub-install /dev/sdc this gave this error: Installing for i386-pc platform.
GitHub
gist.github.com › SalahAdDin › 944be0154d0c581cba91735e27352447
Repairing Arch/Manjaro Grub - Gist - GitHub
(hd0,gpt8)... grub rescue > ls (hd2,gpt8) # try to recognize which partition is this grub rescue > ls (hd2,gpt6) # let's assume this is the linux partition grub rescue > set root=(hd2,gpt6) grub rescue > set prefix=(hd2,gpt6)/boot/grub # or wherever grub is installed grub rescue > insmod normal # if this produced an error, reset root and prefix to something else .. grub rescue > normal · After these, you will get access to the grub, choose your linux system and get into. Once in your linux system, reinstall and reset the grub:
Super User
superuser.com › questions › 1609586 › cant-install-grub-for-manjaro-after-reinstalling-windows
linux - Can't install grub for Manjaro after reinstalling Windows - Super User
December 13, 2020 - sudo mount /dev/sda4 /mnt sudo mount /dev/sda1 /mnt/boot/efi manjaro-chroot /mnt /bin/bash pacman -Syu grub grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=manjaro --recheck grub-mkconfig -o /boot/grub/grub.cfg
ArchWiki
wiki.archlinux.org › title › GRUB
GRUB - ArchWiki
The entry in the chainloader line specifies the path of the .efi file to be chain-loaded. ... See #Using the command shell first. If unable to activate the standard shell, one possible solution is to boot using a live CD or some other rescue disk to correct configuration errors and reinstall GRUB.
Manjaro Linux
forum.manjaro.org › support
Regenerate Grub after Windows install - Support - Manjaro Linux Forum
March 3, 2024 - Hello I’ve installed windows and Grub was removed ☹ Can U help me with recover it? My partitions are: [manjaro-gnome manjaro]# lsblk -o PATH,PARTTYPE,FSTYPE,PARTTYPENAME PATH PARTTYPE FSTYPE PARTTYPENAME /dev/loop0 squashfs /dev/loop1 squashfs /dev/loop2 squashfs /dev/loop3 squas...
In brief. David Ing.
ingbrief.wordpress.com › 2018 › 04 › 09 › restoring-manjaro-grub-after-ubuntu-upgrade
Restoring Manjaro Grub after Ubuntu upgrade | In brief. David Ing.
February 21, 2022 - Confirm the partition with Manjaro installed: $ sudo fdisk -l $ lsblk -f · Mount the Manjaro system partition (mine was sda11): $ sudo mount /dev/sda11 /mnt · Reinstall Arch-Grub: $ sudo grub-install –boot-directory=/mnt/boot /dev/sda
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I fixed it! All I had to do was boot the live installer, follow the steps like last time, except when it asks where to install it, select uninstall Ubuntu and reinstall Ubuntu (the installer detects the existing installation of the operating system you're installing, and adds options for reinstalling). That's it! This time it should install GRUB and set it as the default boot loader.
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After a Windows-update you probsbly have to reinstall Grub2 again. But now you already know how to do that (sudo apt install grub).
Or you can install 'Grub2win' in your Windows, like it says it is Grub for Windows. I have Grub2 installed in it own partition and have Grub2win in my Windows-installation.