Arch Linux

pokoj42bnaintru

Guest

Problem with installing dualboot

Hi.

I tried dual boot with Windows 10, but after reboot I got grub command prompt instead of grub-menu with choice the operating system.

ls output:
(hd0) (hd0,gpt6) (hd0,gpt5) (hd0,gpt4) (hd0,gpt3) (hd0,gpt2) (hd0,gpt1) (cd0)

Gpt1 is Recovery from Windows.
Gpt2 is EFI partition.
Gpt3 is probably Windows reserved partition.
Gpt4 is Windows partition.
Gpt5 is Swap partition.
Gpt6 is Linux root partition.

Gpt2 contains:
efi/
    Microsoft/
        Boot/
        Recovery/
    Boot/
        bootx64.efi
    arch/
        grubx64.efi

I installed grub with command:
grub-install /dev/sda
Target directory: /mnt/boot

Gpt6 was mounted /mnt
Gpt2 was mounted /mnt/boot

Where is my problem?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,104

Re: Problem with installing dualboot

If that is literally the command used, you installed a BIOS GRUB instead of an UEFI GRUB, read: https://wiki.archlinux.org/index.php/GR … allation_2

You probably will also want to be chrooted to ensure you are installing the latest GRUB .

pokoj42bnaintru

Guest

Re: Problem with installing dualboot

Must I uninstall the BIOS grub or just install UEFI grub?

pokoj42bnaintru

Guest

Re: Problem with installing dualboot

Hey, please, help!

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,104

Re: Problem with installing dualboot

Please don't do that.

It doesn't matter, you can keep it or you can remove it, you might have to adjust the boot order in your firmware so that it boots the UEFI entry explicitly, other than that it doesn't matter if the BIOS GRUB remains installed.