trying to boot lands to grub rescue

content/post/trying-to-boot-lands-you-to-GRUB-rescue.md

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+---
+title: "Trying to Boot Lands You to GRUB Rescue"
+date: 2020-09-09T19:35:03+05:30
+lastmod: 2022-03-22T19:35:03+05:30
+draft: false 
+keywords: [grub]
+description: ""
+tags: [grub]
+categories: [linux]
+author: ""
+
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+---
+
+<!--more-->
+
+In my case it was Windows 10 + Manjaro dual boot but it should work for other distributions with single boot as well.
+
+*P.S.: There may be other ways to fix this but I am writing here what worked for me. Also, I am not responsible if your stuff breaks by following the steps here.*
+
+*tl;dr: Boot using a live media, `chroot` to your existing installation and install GRUB to your boot partition.*
+
+## Long version
+If the above mentioned method is of least help, here is Manjaro specific procedure.
+
+It usually happens when the partition table gets altered by Windows, either by a Windows update or by manually modifying partitions.
+
+*&lt;rant&gt;Please note that I would not have written this post if all of the existing Manjaro forums had not broken, returning a 404. Also, it would have saved a lot of my time.&lt;/rant&gt;*
+
+Get yourself a live media, boot into your computer and open a terminal. Once there, go figure out your boot partiton and Linux install with `sudo fdisk -l`.
+
+Next, mount your Linux install with `sudo mount /dev/sdX# /mnt`. Replace `/dev/sdX#` with whatever you have in your case.
+
+*Note: At this point, some sites ask you to install `mhwd-chroot` and let it do its sweet job of `chroot`-ing and stuff. Well, I couldn't find it in the official repository and the AUR so we follow a different procedure here.*
+
+`chroot` into your existing Linux install. In my case, it was Manjaro and the live media provides a sweet program called `manjaro-chroot` so all I had to do was enter `manjaro-chroot /mnt`. Refer to [Gentoo wiki](https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation#Mounting_the_necessary_filesystems) or your distribution's documentation for `chroot`-ing into your existing install.
+
+Once there, mount your boot partition. It should be `mount /dev/sdX# /boot/efi`. Again, replace `/dev/sdX#` with whatever you have as boot partition.
+
+Now enter `grub-install /boot/efi`. It should finish without error. Run `grub-mkconfig -o /boot/grub/grub.cfg`.
+
+Exit and reboot. You should now be presented with grub menu.