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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.

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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 ...
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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 ...
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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 ...
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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 ...
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How do I switch back to Windows 8?

Okay so I am taking an online course to learn Linux and Ubuntu. On my desktop that has windows 8.1, I downloaded Ubuntu and then watched a couple of videos to make sure that I partitioned the drive ...
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OS-prober is taking a really long time

Any time I update my GRUB configuration or install a kernel update that has the update manager update my grub configuration, the os-prober part of the configuration hangs for sometimes 10-20 minutes. ...
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1answer
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os-prober and update-grub can't see/find working Windows install

I have installed 12.04 next to a Windows 7 install, on a partitioned 3 TB hard disk. If I use F12 during boot to review boot options from the BIOS, Windows 7 and Ubuntu boot normally, but the Ubuntu ...
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Boot-repair stuck at os-prober after installing Ubuntu 12.04.3 beside Windows 8.1

I am using an HP Envy 14t Laptop which had Windows 8.1 pre-installed in it, it has its recovery files in an SSD. I installed Ubuntu 12.04.3 following the instructions provided here: Installing Ubuntu ...
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Windows 7 doesn't show in GRUB menu

I have dual boot with Ubuntu and Windows 7. I needed to reinstall W7 and after that I reinstalled grub so that I could access both Ubuntu and W7. Unfortunately my GRUB menu doesn't show W7. I tried ...
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How can I set kernel parameters for a specific installation involving os-prober?

Beside Ubuntu i also have an Arch installation. I plan to maintain the grub-configuration from my Ubuntu. The whole update-grub - grub-mkconfig - os-prober-chain works just fine. I know I can set ...
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OS-Prober not recognized! [closed]

So due to some shenanigans with trying to get rid of all traces of grub-customizer, I accidentally hit "delete" an extra time while in a root nautilus, and deleted my os-prober script in /etc/grub.d/...
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GRUB does not detect Windows

I have finally installed Ubuntu on my second drive. When I start my computer GRUB only offers me to boot Ubuntu, not Windows 7. What needs to be done so that I can choose between Ubuntu and Windows in ...
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os-prober doesn't find Arch Linux until I manually mount Arch Linux partition

Title says everything. Here is output of Boot info script: http://paste.ubuntu.com/1169338/ sudo os-prober returns only Windows partition: sudo os-prober /dev/sda2:Windows 7 (loader):Windows:chain ...
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os-prober fails to identify a linux system so I need to write a custom grub2 menu entry as a workaround, how?

I want to add a custom menu to grub2 like this (as /etc/grub.d/40_custom): #!/bin/sh exec tail -n +3 $0 # This file provides an easy way to add custom menu entries. Simply type the # menu entries ...