I don’t want img as a loopback device just in case I need to access Fyde OS root partition from Ubuntu or Windows
Let’s say,
If I boot into Ubuntu and extract the FydeOS image to an empty partition with sufficient space, then edit Fyde OS
/etc/fstab
to mount the ESP partition as
/boot/efi
Next, I add a custom Ubuntu’s GRUB entry in
/etc/grub.d/40_custom
pointing towards Root A of Fyde OS by specifying its UUID
Since the ESP already contains GRUB under
/EFI/ubuntu
I copied FydeOS’s boot and GRUB files to
/EFI/fydeos
After updating grub and booting into FydeOS from custom menu entry, I see that the ESP is mounted as
/boot/efi
so I update grub.cfg from FydeOS.
Now, if FydeOS receives an update I want Ubuntu’s OS-prober to detect it and automatically generate a menu entry with the updated kernel and initramfs.
My Questions:
Is it safe to remove the manually added GRUB entry once FydeOS is installed?
Is my approach rational…Will Ubuntu’s OS-prober detect FydeOS automatically by scanning the partition?