Show df -h from Manjaro and Arch please.
df -h
Manjaro:
dev 7,8G 0 7,8G 0% /dev
run 7,8G 1,9M 7,8G 1% /run
/dev/sdb3 68G 50G 15G 78% /
tmpfs 7,8G 0 7,8G 0% /dev/shm
tmpfs 7,8G 9,0M 7,8G 1% /tmp
/dev/sdb4 587G 272G 285G 49% /mnt/games
/dev/sda1 296M 56M 241M 19% /boot/efi
tmpfs 1,6G 100K 1,6G 1% /run/user/1000
Arch:
dev 7,8G 0 7,8G 0% /dev
run 7,8G 1,7M 7,8G 1% /run
efivarfs 128K 46K 78K 38% /sys/firmware/efi/efivars
/dev/sdb5 69G 21G 45G 32% /
tmpfs 7,8G 0 7,8G 0% /dev/shm
tmpfs 7,8G 8,6M 7,8G 1% /tmp
/dev/sdb4 587G 272G 285G 49% /mnt/games
/dev/sda1 296M 56M 241M 19% /boot/efi
tmpfs 1,6G 108K 1,6G 1% /run/user/1000
/dev/sdb2 1,2T 796G 332G 71% /mnt/volume
I got it to work...
I have used the command grub-install --target=x86_64-efi --efi-directory=esp --bootloader-id="Arch Linux"
before, but without success. This didn't worked before. But now...
I have no idea, whats changed. Anyhow. Im happy.
I'm a gentoo user, so I don't know how either manjaro or arch lay out their partitions. But in my case, the grub.cfg (menu) file is actually on the root partition, in /boot. The efi partition contains only the grub loader, which I presume knows where to look for grub.cfg because that's how grub2-setup installed it.
It's possible you have a similar issue. Your manjaro partition may have a /boot dir which is where grub.cfg is located. Even if your arch partition also has /boot it won't matter if the grub loader doesn't read it.
You're correct. /boot is the location for grub.cfg for a vanilla manjaro install and a grub using arch install
Arch Linux
The beloved lightweight distro