Hi, I’ve been using both Manjaro and windos for a couple years through dual boot without issue. Today Manjaro asked me to run some updates, like it often does, but when I finished work and rebooted to launch windows and get some gaming done, grub wasn’t showing at all and Manjaro would launch witho…

[image] [Stable Update] 2021-03-08- Kernels, Plasma 5.21.2, Haskell, Kodi, Grub, KDE-Dev Stable Updates Through a recent patch, os-prober seems to have been disabled by default. See here for details: https://gitlab.manjaro.org/packages/core/grub/-/commit/991784fbecb814a146…

I reinstalled GRUB 15 minutes ago and noticed it wasn’t looking for Windows partition anymore, and I had to add to my grub config file /etc/default/grub the following line # OS Prober GRUB_DISABLE_OS_PROBER=false and then I ran sudo update-grub and it detected and added the Windows Grub menu entry…

You, my good sir, just saved my day.

[image] omano: GRUB_DISABLE_OS_PROBER=false THANK YOU. That’s been driving me crazy for like an hour.

I see, at least on Testing branch, that there is a new .pacnew file for GRUB that adds the parameter to GRUB config file, so if people look after their .pacnew files it is now kinda fixed, or taken care of. People still need to manually do it to enable it but it is there now. # Uncomment this optio…

Thanks a lot! I had the same issue after Manjaro update and adding GRUB_DISABLE_OS_PROBER=false fixed Windows back.

Worked for me as well, thank you!!

I wanted to drop a quick thanks myself. I didn’t expect to have a reply so fast and went on investigating, and had managed to add a manual windows entry to grub to get by. But now I updated my laptop and had the same issue, remembered to come over to check for replies and it really helped. So thank…

Manjaro Linux Forum

After update, grub doesn't find windows install

Support

Olli 8 March 2021 18:03 3

GRUB_DISABLE_OS_PROBER flag appears to be ignored in /etc/default/grub Feedback

After updating to version 2.04-17 re-generating the grub config with the update-grub command ignores the fact that GRUB_DISABLE_OS_PROBER=true is set in /etc/default/grub. The partition structure is as below - even though GRUB_DISABLE_OS_PROBER is set to true os-prober is still invoked and Windows Boot Manager is added to the boot menu. This does not occur in 2.04-16. The os-prober version is 1.77-1 but this has not changed. The issue occurs on both 5.4 and 5.10 series kernels. In either case…

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