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Ventoy iso9/10/2023 ![]() In a normal System MBR configuration it is directed to the ACTIVE partition for BOOTing. (05-10-2021, 12:18 PM)FroggieTheGremlin Wrote: In an MBR-Legacy BOOT configuration, the MBR (or EMBR if used) directs the System as to where to go for BOOTing. ![]() ![]() So, it seems the NUC is the culprit, and that's odd, because the NUC is an Intel PC and it was Intel that invented the EFI specification. I tried as you suggested booting on another system, this time on a ASUS Deskmini X300, this system only allows UEFI booting, not legacy booting, and in fact it works with the same ISO that doesn't work in the NUC when I use UEFI booting, in both cases as expected the systems boot from the second partition. In old or legacy systems, EFI partition never existed and in fact is not needed, only when EFI was introduced by Intel, a new partition EFI, was needed for the system to boot, Ventoy allows both methods to work. Can you boot on different systems as a test?Hi Steve, sorry but you are wrong in relation the need to have a EFI partition to boot, you only need the MBR to boot in legacy mode, you can check here in the MBR section. I can boot the ISO OK (partition 1 = NTFS, older Ventoy than you).Īnother explanation is that NUC is causing an issue. Then show screenshot of UEFI-booting 'good' ISO and screenshot of booting 'bad' ISO.Īlso, try formatting first partition as NTFS. Please can you add screenshots of standard Ventoy USB drive with the two Windows files in the Ventoy menu. It DOES need the EFI partition for Legacy booting. ![]() The Legacy boot files are on Partition 2. If you make a fresh Ventoy USB drive, then partition 1 is completely empty - but you can Legacy boot from the USB drive to the Ventoy menu (which then reboots because the partition 1 is empty). (05-08-2021, 11:14 AM)Steve2926 Wrote: You said 'so it boots from the MBR, doesn't need EFI partition for booting.' ![]()
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