grub rescue app for manjaro : ManjaroLinux
www.reddit.com › grub_rescue_app_for_manjaroManjaro is a GNU/Linux distribution based on Arch. A rolling release distro featuring a user-friendly installer, tested updates and a community of friendly users for support. Official releases include Xfce, KDE, Gnome, and the minimal CLI-Installer Architect. Community releases include Awesome, bspwm, Budgie, Cinnamon, i3, LXDE, LXQT, Mate ...
GRUB/Restore the GRUB Bootloader - Manjaro Linux
archived-wiki.manjaro.org › indexRe-install Grub. sudo grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=manjaro --recheck 5.) Update Grub configuration file. sudo update-grub Note If you get something like EFI variables are not supported on this system. Then install the efibootmgr, dosfstoolsand grubpackages and try steps 4 and 5 again.