Installing Windows and GRUB broke my Manjaro Install

Hi everyone,

I have a computer that used to run Manjaro on a SSD just fine. For professional reasons I elected to install a second SSD and Windows 10 on it.

As I wanted to be able to dual boot from the Manjaro Disk, I (most likely ill-advisedly) ran grub-install on the Manjaro install.

Since then, booting from the Manjaro disk is impossible, GRUB starts in rescue mode and I get a grub_verify_string error…

Any ideas as to what could have happened or how to troubleshoot the issue ?

Thanks a lot !
pjmv

It seems like you unnecessarily reinstalled GRUB but didn’t generate the configuration file afterwards. You need to boot from Manjaro installation media (i.e. USB drive) and generate it.

https://wiki.manjaro.org/index.php/GRUB/Restore_the_GRUB_Bootloader

You can probably skip the installation part. Just manjaro-chroot into your system and generate GRUB configuration file with grub-mkconfig.

Microsoft embraced and extinguished Manjaro for you. :rofl:

Sorry, couldn’t help it

1 Like

I feel kinda stupid… It worked.

Thanks a lot !

pjmv