How to Modify the "Boot BlahBlah from BlahBlah."

[Abu Haneef]

I have 3 OSs runnimg on the same HD. 2 are Ubuntu and 1 is Win10. Refind is instralled on Ubuntu01. I want to modify the "Boot BlahBlah from BlahBlah." label for all three. I determined that the location of Ubuntu02 is /EFI/ubuntu/grubx64.efi. I created a manual.conf file. How do I distinguish between the 2 Ubuntu installs? Where would I find the xxxx.efi file for the Ubuntu01?

menuentry "Windows 10" {
loader \EFI\Microsoft\Boot\bootmgfw.efi
disabled
}
menuentry Ubuntu01 {
loader ?????????????
icon /EFI/refind/icons/os_linux.png
disabled
}

menuentry Ubuntu02 {
loader /EFI/ubuntu/grubx64.efi
icon /EFI/refind/icons/os_linux.png
disabled
}

[Roderick W. Smith]

The very text you want to eliminate contains the answer to your question -- rEFInd specifies both the path to the boot file and a name or other identifying information for the partition. For instance, Boot EFI\ubuntu\grubx64.efi from Ubuntu /boot tells you that a partition with a partition or filesystem name of "Ubuntu /boot" holds a boot file called EFI\ubuntu\grubx64.efi. If the partition is identified with a name like this, then blkid should reveal it, and it will also give you partition GUID (called PARTUUID) or filesystem UUID (called UUID) values. If the partition has no special name (it's blank or uses a common "generic" name), then rEFInd falls back to describing it, as in "42 GiB ext4 partition". In those cases, you'll need to use gdisk, parted, GParted, or some other partitioning tool to identify the disk.