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Questions tagged [os-prober]

os-prober is a command that lists other operating systems. It is used during installation and reconfiguration to create a GRUB boot menu that shows other installed OSes as well as Ubuntu.

0 votes
1 answer
57 views

Ubuntu not loading from boot menu

My HP g6 laptop has dual boot installed. Windows in SSD, and Ubuntu in external SD card. I wanted Windows load by default. Therefore, I changed grub timeout to 0, and grub default to 2 (windows). And ...
Abdul Ahad Rasel's user avatar
-3 votes
1 answer
1k views

How to enable it, when GRUB_DISABLE_OS_PROBER?

How to activate GRUB_DISABLE_OS_PROBER on Ubuntu 22.04?
Avni Bulliqi's user avatar
0 votes
1 answer
793 views

Dual-Boot(Ubuntu/ArchLinux ): configure Ubuntu's GRUB2 to boot both OS

I have ArchLinux installed with NON-UEFI (since last edit its UEFI now) on /dev/sda4 partitioned with LVM2 containing two logical volumes (/vgarch/arch_root & /vgarch/arch_home) , since i have ...
ya22y's user avatar
  • 33
2 votes
1 answer
3k views

Grub doesn't detect Windows 10 and os-prober shows no output (tried existing solutions)

I'm facing an issue with Grub not detecting my Windows 10 installation. I have come across a similar question on this forum, but unfortunately, the suggested solutions haven't worked for me. When I ...
unknownmemory's user avatar
0 votes
0 answers
344 views

GRUB menu in 22.04.2 - os-prober?

I have 3 disk: /dev/sda - empty /dev/sdb - Ubuntu 20.04.5 /dev/sdc - Ubuntu 20.04.5 I use UEFI bootloader to boot any system. I decided to install in /dev/sda Ubuntu 22.04.2. After installing Ubuntu ...
Bob's user avatar
  • 208
4 votes
1 answer
6k views

Just installed Ubuntu 22.04 on a dual-boot setup, now my other OS isn't showing up

I just installed Ubuntu 22.04 on my system in a dual-boot configuration. In the past, when I did this with Ubuntu 20.04, a GRUB boot menu would show up at each boot, allowing me to choose which OS to ...
ArrayBolt3's user avatar
  • 3,599
7 votes
1 answer
20k views

os-prober and update-grub find windows install, yet it does not show in boot menu

My system runs Ubuntu 21.04. I recently moved the system from an old SSD to a new M.2 drive, using Clonezilla. In that process, I needed to run update-grub. The system boots up fine, but I cannot ...
el_murdoque's user avatar
0 votes
1 answer
1k views

os-prober not finding windows on intel softraid

Background: I have a Desktop with the following drive configuration: Ubuntu 20.04 on single SSD Windows 10 on a Intel RST Raid across 2 SSDs OS's are installed in UEFI mode Problem: OS prober does ...
MobiusNone's user avatar
1 vote
0 answers
228 views

18.04: Does os-prober work well for kernel v5?

os-prober on an Ubuntu 18 instance using the Google Compute Engine (image: ubuntu-minimal-1804-bionic-v20200220 - "Canonical, Ubuntu, 18.04 LTS Minimal, amd64 bionic minimal image built on 2020-02-20")...
John's user avatar
  • 133
1 vote
2 answers
2k views

sudo update-grub is not affecting the grub menu

I have multiple OS's installed on my laptop, and am running grub from Ubuntu to boot them. If I run sudo update grub it finds all the systems, as you can see in the image. The problem is that after ...
An unnasuming being's user avatar
1 vote
0 answers
541 views

grub and os-prober don't see Windows10 after upgrade from Ubuntu 16.04 to Ubuntu 18.04

Can be related to Ubuntu 18.04 Server unable to see Windows 10 OS as dual boot My Initial configuration: Dual boot Windows 10 and Ubuntu 16.04 on separate drive since 16.04 release. No problem,both ...
jf_vt's user avatar
  • 111
1 vote
0 answers
954 views

os-prober & 50mounted-tests

Today, as soon as I switched on my Xubuntu 16.04.4 computer, one CPU core went to 100% and there was constant HDD I/O for over 2 minutes. I looked at the system log afterwards and there were lots of ...
EmmaV's user avatar
  • 219
3 votes
1 answer
15k views

os-prober does not return Windows 10 on another drive

I'm 1-day old to Linux, so excuse me if my question is not very clear! I have my Windows 10 on HDD. I added an SSD and installed Ubuntu on it. Both boot perfect except Windows is always the default ...
Majid's user avatar
  • 51
3 votes
2 answers
7k views

How to bypass or stop the very long run times of grub2/os-prober?

Whenever I upgrade Ubuntu 16.04 and there is a kernel upgrade, the update process takes a very long time when running (os-prober) and also generates the grub configuration multiple times. And for ...
keepitsimpleengineer's user avatar
1 vote
0 answers
816 views

How to repair grub to work with multiple hard drives?

On my computer I have multiple hard drives. One of them has Ubuntu 14.10 and the other has Windows 8.1. I messed up my boot loader and know only Ubuntu appears in the grub list. Windows 8.1 is on the ...
Nate Barton's user avatar

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