I installed manjaro and deepin (same HDD with 2 partitions) on a laptop (T460P). None of them show up in the boot menu and hence my laptop sees that I have no bootable drive. But the distros are still there. The only way I can get into both of them successfully is using SuperGRUB2Disk live USB.
I have installed refind but that doesn’t show during boot either. Only hint to why is, I got a message saying that "efi variables not supported on this system".
I have access to both distros through the USB which is annoying. I looked around it and seems that it has to do with the grub not showing up.
Firmware is set to: Both (UEFI and legacy) with UEFI first. Secure boot and Quick mode disabled.
Is there any way to fix this and make it boot normally without the USB?