Attempting to install TrueNAS Scale 24.04.0 via either an external Ventoy SSD, a USB written by Rufus in dd mode, or a different USB written via balena etcher fails with the following error message:
EFI/debian/grubx64.efi returned non-zero exit status 6
The TrueNAS installation on sda has failed.
The system in question is a Supermicro X11SAA on the latest UEFI version (I upgraded to this from an older version after that failed to install).
I have tried to install to a SATA-SSD, to an NVMe SSD in the internal m.2 slot, and to an NVMe SSD in the PCIe slot without success. I then disabled the ASPM and SATA power saving features, but this was without success; the error appears the same way (just references whichever drive I selected).
A test installation of Windows 10 succeeded.
EDIT: The two USB drives I used are USB3, I used them in both USB3 and USB2 ports. The external SSD used a USB2 cable, I tested that in the USB3 and USB2 ports as well.