# Lost GRUB dual boot after updating to BIOS 3.07

**URL:** <https://community.frame.work/t/lost-grub-dual-boot-after-updating-to-bios-3-07/14720>\
**Category:** Framework Laptop 13\
**Created:** [February 3, 2022, 4:34pm UTC](https://community.frame.work/t/lost-grub-dual-boot-after-updating-to-bios-3-07/14720 "2022-02-03T16:34:41Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![XADE](https://avatars.discourse-cdn.com/v4/letter/x/bc8723/32.png) [@XADE](https://community.frame.work/u/XADE)\
**Post date:** [February 4, 2022, 2:08pm UTC](https://community.frame.work/t/lost-grub-dual-boot-after-updating-to-bios-3-07/14720/6 "2022-02-04T14:08:10Z")

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> [@Moffintops](#):
>
> You probably already know how, but for anyone else stumbling upon this thread, here is an easy way to reinstall GRUB **without** reinstalling the entire OS:

_just to reinstall GRUB that much work is not needed_

- incase of **MBR**  
simply running

```auto
grub-install /dev/<disk>

```

should install grub

- incase of **GPT**  
after mounting the **FAT** partition

```auto
grub-install --efi-directory=<path_to_mount_point>

```

should do the trick

grub.cfg is not needed to be updated,if partition table & data are intact

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_[View the full topic](https://community.frame.work/t/lost-grub-dual-boot-after-updating-to-bios-3-07/14720)._