Setting up OS error

Hey,

l tried to set TrueNas via USB flash drive, and this error message keeps popping (See photo).

l tried downloading the legacy version, and the same happens, nor did switching to a different flash drive or changing the format drive between NTFS, FAT, FAT32 types any help…

Worth noting that this is my very first time setting this OS on an old office desktop PC - so l have no past knowledge of the issue and couldn’t find an open discussion about it.

Any help would be greatly appriciated :slight_smile:

Could be that it was installed assuming UEFI and is then doing a legacy boot or vice versa.

Go into BIOS settings, and set your BIOS to UEFI-only boot and reinstall TrueNAS.

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A quick update - that worked.
Thank you very much :slight_smile:

l was so focused to set the USB flash drive in the right file system that l forgot to check the boot options in the BIOS settings…