I have dual booted Manjaro with Windows 10. I followed other forums with the similar issue but couldn’t get much help. This is what I have tried after following other forums:
The partition flags are set to:
efi = boot, esp
swap = swap
root = no flags
home = no flags
When I run efibootmgr I get:
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 0001,0010,0011,0014,0013,0015,0012,0016,0000,0017,0019,001A,001B,0018
Boot0000* Windows Boot Manager
Boot0001* Manjaro
Boot0010 Setup
Boot0011 Boot Menu
Boot0012* Removable Drive
Boot0013* Hard Drive
Boot0014* USB Storage Device
Boot0015* CD/DVD/CD-RW Drive
Boot0016* Network
Boot0017* Onboard NIC
Boot0018* Onboard NIC
Boot0019 Diagnostics
Boot001A Peripheral Device setting (OPROM setting)
Boot001B Change boot mode setting
In the /etc/default/grub:
GRUB_TIMEOUT=5
GRUB_TIMEOUT_STYLE=menu
GRUB_DISABLE_OS_PROBER=false
I opened windows and disabled “fast boot” as well.
The grub is visible when I press F12 and go into the boot options and open Manjaro from there. There is a fully functional grub menu present. The issue is that when I boot the system normally, the grub never shows up. It by default boots into Manjaro as it is on top of windows in UEFI boot order. Pressing “Esc” when booting to force open grub also does not work. There is a blank screen and I am guessing there is a grub there because, I can navigate to Windows and Manjaro by pressing up and down keys. It’s just that it does not display.
I’ve also noticed that when I run “efibootmgr”, Manjaro is below windows boot manager in the output. Could that be the issue? I am not very familiar with Linux systems, hence, I don’t know much about that. Any help is very much appreciated.
edit /etc/default/grub
so that the timeout is -1, and then grub wont do anything automatically,
and will just wait for you to do something
GRUB_TIMEOUT=-1
and then run
sudo update-grub
to apply the settings, and then the grub menu should configure itself
and you should see it as you expect it to after restart
after that consider altering EFI so windows points to grub when it starts instead of it’s default
(https://askubuntu.com/questions/838780/windows-10-changes-uefi-boot-order-every-time#869099)
This is how you want to solve the problem
changing the windows entry in efi to point to grubs location
similarly to your entry for manjaro
…make sure that Windows does not use its own bootmgfw.efi file again, but rather grubx64.efi
There are different ways to solve the problem
IMO, in my opinion, that’s the ideal way to do it.
So, using efibootmgr to achieve this would look like this…
Check efibootmgr for it’s listed entries and with verbose output to see the filepaths
designated for each option to point to on startup
sudo efibootmgr -v
and you should see an entry for windows…“Windows Boot Manager”
and an entry for Manjaro, with the file designated that the options point to
for windows it’s /EFI/Microsoft/Boot/bootmgfw.efi
for manjaro it’s /EFI/Manjaro/grubx64.efi
So to change the file that windows points to, to grub you would use this command
sudo efibootmgr -L “Windows Boot Manager” -l “/EFI/Manjaro/grubx64.efi”
Now, Windows should not change the EFI settings anymore and on every boot, GRUB is the default. As GRUB ideally already identified your Windows OS, it also contains its value in the grub settings.
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Hi @HammerNix ,
Your help is very much appreciated.
I set the value in /etc/default/grub
GRUB_TIMEOUT=-1
I also ran this afterwards
sudo update-grub
I also ran the command
sudo efibootmgr -L “Windows Boot Manager” -l “/EFI/Manjaro/grubx64.efi”
as @maycne.sonahoz mentioned, I even ran this command
grub-mkconfig -o /boot/grub/grub.cfg
It seems the issue still persists.
What are the color settings in /etc/default/grub" (around line 47)?
Maybe there is something messed up…
My settings:
GRUB_COLOR_NORMAL=“light-gray/black”
GRUB_COLOR_HIGHLIGHT=“green/black”
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What is your partitioning?
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@FeB
That seems to be the same as your settings
@maycne.sonahoz
Here is my partitioning:
lsblk -fa
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
loop0 squashfs 4.0 0 100% /var/lib/snapd/snap/atom/282
loop1 squashfs 4.0 0 100% /var/lib/snapd/snap/snapd/16010
loop2 squashfs 4.0 0 100% /var/lib/snapd/snap/core20/1518
loop3
loop4
loop5
loop6
loop7
sda
├─sda1 ntfs Recovery 2CA6FFFBA6FFC2FE
├─sda2 vfat FAT32 0E00-1B19
├─sda3
├─sda4 ntfs B6180A041809C3F9
├─sda5 ntfs 2E4CD43D4CD3FD91
├─sda6
├─sda7 ntfs New Volume 243A24593A242A6E
├─sda8 vfat FAT32 EFI 1841-E207 510.7M 0% /boot/efi
├─sda9 ext4 1.0 home 9a92b972-c864-4fd7-83ff-87e217e60e55 95G 3% /home
├─sda10 ext4 1.0 root 68557680-1f9a-4d57-91b8-12ae5954f938 20.9G 33% /
└─sda11 swap 1 swap 290bdfd0-c153-4285-8c36-f4abf0da58de [SWAP]
LANG=C sudo parted -l
Model: ATA KINGSTON SA400S3 (scsi)
Disk /dev/sda: 480GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 524MB 523MB ntfs Basic data partition hidden, diag
2 524MB 628MB 104MB fat32 EFI system partition boot, esp
3 628MB 645MB 16.8MB Microsoft reserved partition msftres
4 645MB 209GB 208GB ntfs Basic data partition msftdata
5 209GB 210GB 605MB ntfs hidden, diag
6 210GB 210GB 1049kB Basic data partition msftdata
7 210GB 319GB 109GB ntfs Basic data partition msftdata
8 319GB 319GB 537MB fat32 boot, esp
11 319GB 330GB 10.5GB linux-swap(v1) swap
10 330GB 367GB 37.1GB ext4
9 367GB 480GB 113GB ext4
Do i see two EFI partitions?
the 1-st choice in your system is windows boot manager/ because of that you didn’t see your grub menu
change the prioriry, put manjaro on the 1-st place
you can do it with bootice
@maycne.sonahoz
First off I just want to say that is community is so friendly and helpful. I thought it was going to be a nightmare like stack overflow 
Back to the issue at hand. Yeah, it seems there are two EFI partitions. You think that might be the issue? Is there a way to solve that?
Thanks a lot.
UPDATE: I just restarted the computer, pressed F12 to open up boot options and selected Manjaro. As you would recall that booting up this way displayed the grub. Previously in the grub, there was a “windows boot manager” option. now it seems to have gone.
@scorpp13
Thanks for the tip. I opened BOOTICE > EUFI > Edit Boot Entries option and it seems Manjaro is on the top most position.
The Boot entries are:
Manjaro
Setup
Boot Menu
USB Storage Device
Hard Drive
CD/DVD/CD-RW/Drive
Removable Device
Network
Windows Boot Manager
Onboard NIC
Diagnostics
Peripheral Device Settings (OPROM setting)
Change Boot Mode Setting
Onboard NIC
Theoretically it is not an issue, though i usually see those on multiple drives rather than on the same one… 
Re-reading your issue, i wonder if the issue comes from theming.
Manjaro provides a Grub that is visually customized. Do you still have that theme configured?
cat /etc/default/grub | grep GRUB_THEME
pacman -Q grub-theme-manjaro
@maycne.sonahoz
$ cat /etc/default/grub | grep GRUB_THEME
GRUB_THEME="/usr/share/grub/themes/manjaro/theme.txt"
$ pacman -Q grub-theme-manjaro
grub-theme-manjaro 20.2-12
Looks like I have theme configured. I can see a grub menu when I press F12, go into boot menu and enter Manjaro from there.
Just checking: are you sure that is the Grub menu, and not the EFI boot menu (not to be mistaken with BIOS)?
@maycne.sonahoz
Yeah I’m sure that’s the grub menu.
Looks something like this ( This is not my grub menu)
Simply look inside /etc/default/grub
If it looks like:
GRUB_DEFAULT=saved
GRUB_TIMEOUT=5
GRUB_TIMEOUT_STYLE=menu
GRUB_DISTRIBUTOR="Manjaro"
you will have a visible grub-menu
(root-rights recommended,
like sudo nano /etc/default/grub
followed by sudo update-grub)
@GaVenga
Thank you so much for the help but, we already checked that. Even now I can confirm that those values are the same with the exception that
GRUB_TIMEOUT=-1
But, that shouldn’t really cause the issue as it was already set to 5 when the grub was not working.
Appreciate the help.
GRUB_TIMEOUT=-1 makes the menu invisible…
Could it be the BIOS / UEFI bootorder ???
You start from the wrong Disk…
So start from the Manjaro partition Disk and not from the Windows partition Disk!
Change the boot-order in your BIOS.
.
You wrote:
The grub is visible when I press F12 and go into the boot options and open Manjaro from there. There is a fully functional grub menu present
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@GaVenga I went in and changed the
GRUB_TIMEOUT=5
Did not change anything except the grub has a time limit of 5 seconds. It is still not visible.
as for the Boot order in UEFI options, Manjaro is already at the top of the order:
I noticed that the output for
efibootmgr
has manjaro below windows boot manager. Could that be the issue?
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 0001,0010,0011,0014,0013,0015,0012,0016,0000,0018,0019,001A,001B,0017
Boot0000* Windows Boot Manager
Boot0001* Manjaro
Boot0010 Setup
Boot0011 Boot Menu
Boot0012* Removable Drive
Boot0013* Hard Drive
Boot0014* USB Storage Device
Boot0015* CD/DVD/CD-RW Drive
Boot0016* Network
Boot0017* Onboard NIC
Boot0018* Onboard NIC
Boot0019 Diagnostics
Boot001A Peripheral Device setting (OPROM setting)
Boot001B Change boot mode setting