# RebornOS grub does not see the other operating systems

**URL:** <https://rebornos.discourse.group/t/rebornos-grub-does-not-see-the-other-operating-systems/527>\
**Category:** Tips & Tricks\
**Created:** [September 26, 2021, 11:21am UTC](https://rebornos.discourse.group/t/rebornos-grub-does-not-see-the-other-operating-systems/527 "2021-09-26T11:21:04Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ste](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@ste](https://rebornos.discourse.group/u/ste)\
**Post date:** [September 26, 2021, 11:21am UTC](https://rebornos.discourse.group/t/rebornos-grub-does-not-see-the-other-operating-systems/527/1 "2021-09-26T11:21:04Z")

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**RebornOS** , **grub** does not see the other operating systems.

Correction of the problem.

Open with `sudo nano / etc / default / grub`  
and I added `GRUB_DISABLE_OS_PROBER =" false`  
Save and close the file.  
Finally I ran `grub-mkconfig -o / boot / grub / grub.cfg`  
and it worked.

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**Author:** ![shivanandvp](https://yyz2.discourse-cdn.com/free1/user_avatar/rebornos.discourse.group/shivanandvp/32/10_2.png) [@shivanandvp](https://rebornos.discourse.group/u/shivanandvp)\
**Post date:** [September 26, 2021, 12:38pm UTC](https://rebornos.discourse.group/t/rebornos-grub-does-not-see-the-other-operating-systems/527/2 "2021-09-26T12:38:25Z")

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Hi @ste. We are aware. Grub does not run `os-prober` by default. The same is true in other Arch based distros as well (at least when I checked). However, we may enable os-prober in the future, considering a lot of the users use it anyway.

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**Author:** ![shivanandvp](https://yyz2.discourse-cdn.com/free1/user_avatar/rebornos.discourse.group/shivanandvp/32/10_2.png) [@shivanandvp](https://rebornos.discourse.group/u/shivanandvp)\
**Post date:** [September 26, 2021, 12:42pm UTC](https://rebornos.discourse.group/t/rebornos-grub-does-not-see-the-other-operating-systems/527/3 "2021-09-26T12:42:14Z")

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Also, below are the correct instructions:

Follow the below steps on RebornOS:

1. Install os-prober:

```bash
sudo pacman -S --needed os-prober

```

1. Enable os-prober in Grub:

```bash
sudo gedit /etc/default/grub

```

And uncomment/edit/add this entry:

```bash
GRUB_DISABLE_OS_PROBER=false

```

Make sure that there is no # before the entry.  
Save the file and exit.

1. Regenerate grub.cfg and reboot:

```bash
sudo grub-mkconfig -o /boot/grub/grub.cfg
reboot

```

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<div class="post-metadata">

**Author:** ![ste](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@ste](https://rebornos.discourse.group/u/ste)\
**Post date:** [September 26, 2021, 1:14pm UTC](https://rebornos.discourse.group/t/rebornos-grub-does-not-see-the-other-operating-systems/527/4 "2021-09-26T13:14:37Z")

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hi @shivanandvp. I understand what you are saying, but on a laptop I have win7 for professional reasons and ReborOS, so I needed a solution and after searching I came up with it.

Thanks anyway  
Keep up the good work