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doc/guides/howto-fix-bootloader.md

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+---
+title: How to fix broken bootloader
+description: 
+published: true
+date: 2020-09-10T21:59:11.289Z
+tags: documentation, howto, user-guide
+editor: markdown
+---
+
+# How to fix broken boot loader
+
+OpenMandriva Lx uses grub2 bootloader, so grub2 commands would work.
+The command to probe computer and write comprehensive grub2 menu is:
+```
+$ sudo grub2-mkconfig -o /boot/grub2/grub.cfg
+```
+In most circumstances this simpler command will work:
+```
+$ sudo update-grub2
+```
+Then to install the grub2 bootloader to the drive you wish to boot from:
+```
+$ sudo grub2-install /dev/xxx
+```
+Where you replace the “xxx” with the name of the drive you want to, or were booting OMLx from, like `sda` or if it is a nvme drive something like `nvme0n1`.
+
+To do this obviously you need access to your OMLx system. It you do not have easy access you can try [Rescatux](https://sourceforge.net/p/rescatux/) or [Super Grub2 Disk](https://sourceforge.net/p/supergrub2/). For this task you may want to try Super Grub2 Disk first.
+
+To find how your storage devices or drives are called, user can simply open KDE Partition Manager or from Konsole run the command:
+```
+$ sudo fdisk -l
+```
+<br>
+
+### Additional information:
+The commands `grub2-mkconfig` and `update-grub2` use the utility called ‘os-prober’ to probe the computer for other operating systems.
+User can run this command independently to see if os-prober is correctly recognizing all other operating systems on users computer. Like this:
+```
+$ sudo os-prober
+```
+
+<br>
+
+### Useful readings
+[Grub2 manual](https://www.gnu.org/software/grub/manual/grub/html_node/index.html)
+Some man pages: [1](https://aty.sdsu.edu/bibliog/latex/debian/grub2rescue.html) [2](https://www.gnu.org/software/grub/manual/grub/html_node/GRUB-only-offers-a-rescue-shell.html)
+