I actually have this exact setup, and I use systemd-boot which works very well. It detects Windows automatically just fine. On Tue, Jul 25, 2017 at 02:20:39PM -0500, Yaro Kasear wrote: > 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@xxxxxxxxxxxxx> 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 > > > >