• Dual boot with Windows 8.1 Gummiboot


    I installed Antergos on a HDD with windows 8.1 in UEFI mode with Gummiboot.
    When I start my computer it boots directly into Antergos and in order to to use Windows, I have to change the order of the EFI boot in the BIOS menu (Lenovo y50-70) so that Windows boot manager will start before the Linux boot manager.

    How can I make gummiboot open up a menu and allow me to boot windows without going to the BIOS every time?

  • Hi,

    Try changing the timeout value in /boot/loader/loader.conf

    Cheers!

  • @lots.0.logs

    Thanks for the answer!
    The timeout property was missing.
    However, I still don’t have windows 8.1 in the options. I probably have to add windows manually to the entries, but I’m not sure how.
    I don’t have the /boot/EFI/Microsoft directory.

  • Hmm…it should have auto-detected your Windows bootloader. Did you mount your exisiting EFI directory as /boot? What’s the output of:
    ls -Rl /boot?

  • @lots.0.logs

    I did not, I could not tell which partition was the EFI partition. Is there a way to recreate this? since I can boot to windows, I just have change the priority in the bios settings

    /boot:
    total 25516
    drwxr-xr-x 4 root root      512 May  1 19:32 EFI
    -rwxr-xr-x 1 root root 18404745 May  1 19:31 initramfs-linux-fallback.img
    -rwxr-xr-x 1 root root  3564796 May  1 19:31 initramfs-linux.img
    drwxr-xr-x 3 root root      512 May  5 19:12 loader
    -rwxr-xr-x 1 root root  4156768 Apr 29 13:01 vmlinuz-linux
    
    /boot/EFI:
    total 1
    drwxr-xr-x 2 root root 512 May  1 16:37 Boot
    drwxr-xr-x 2 root root 512 May  1 16:37 gummiboot
    
    /boot/EFI/Boot:
    total 83
    -rwxr-xr-x 1 root root 84665 Feb  2 09:39 BOOTX64.EFI
    
    /boot/EFI/gummiboot:
    total 83
    -rwxr-xr-x 1 root root 84665 Feb  2 09:39 gummibootx64.efi
    
    /boot/loader:
    total 1
    drwxr-xr-x 2 root root 512 May  1 19:32 entries
    -rwxr-xr-x 1 root root  27 May  5 19:12 loader.conf
    
    /boot/loader/entries:
    total 1
    -rwxr-xr-x 1 root root 123 May  1 19:32 antergos.conf
    -rwxr-xr-x 1 root root 143 May  1 19:32 antergos-fallback.conf
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