I am at my wits' end. i am using the latest ubuntu server, ubuntu liveserver 24 Bootable medium: I have used both Rufus and BalenaEtcher, burned the Ubuntu Server image in DD mode, and ensured it is set to GPT and UEFI-only.
Installation: I have disabled Secure Boot, enabled UEFI mode, and disabled Fast Boot. I booted the USB using the boot menu (F12), set up the server (did not opt for Ubuntu Pro), and chose to use the entire hard disk—both with and without LUKS encryption. Despite this, I keep ending up with “No bootable device found” after installation.
Troubleshooting: I have used the Ubuntu Live session to verify that the EFI folder exists and contains the BOOTx64.EFI file. I have reinstalled GRUB and run Boot-Repair. I checked the BIOS to confirm that the hard disk is first in the boot priority list. From the Ubuntu terminal, I verified that all necessary boot files are present. I have also confirmed that the hardware supports UEFI boot and have completely disabled any legacy boot options.
