[arch-general] Dual boot issue, windows doesn't show up on grub

Yaro Kasear yaro at marupa.net
Tue Jul 25 19:20:39 UTC 2017

I have found it sometimes helps to mount the "Microsoft Reserved" or
"Microsoft System" partition before running grub-mkconfig. The os-prober
package can be really dimwitted sometimes when it comes to doing scans on
its own like that.

On Tue, Jul 25, 2017 at 2:07 PM, Junayeed Ahnaf via arch-general <
arch-general at archlinux.org> wrote:

> Oh yes, I have that too. Forgot to add that, issued sudo os-prober
> before sudo update-grub but no luck .
> On 07/26/2017 01:06 AM, Bjoern Franke wrote:
> > Am 25.07.2017 um 21:03 schrieb Junayeed Ahnaf via arch-general:
> >> Hello ,
> >>
> >> I installed arch on my laptop which has 2 hard drives , one is ssd
> (linux is installed there, also grub), one is HDD(with windows). So, at
> boot time , I can select either hard disk or ssd and can get either windows
> or arch. Is there a way for grub to see both Linux and Windows? I tried
> sudo update-grub and  sudo grub-mkconfig -o /boot/grub/grub.cfg but they
> don't recognize windows. My windows is not uefi if that's any issue.
> >>
> >> My linux is on /dev/sdb2 and windows on /dev/sda2 if that's any concern.
> > Did you install os-prober?
> >
> > regards
> > Bjoern

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