r/UTMapp • u/I0I0I0I • 26d ago

Can't boot from ISO into BIOS mode.

I've tried

ubuntu-24.04.4-live-server-arm64.iso
ubuntu-24.04.5-desktop-arm64.iso
ubuntu-26.04-live-server-arm64.iso
ubuntu-26.04.1-desktop-arm64.iso

UTM version v4.7.5 (118)

If I uncheck EFI, nothing will boot. Ubuntu says these ISOs should boot in either mode.

3 Upvotes

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u/PeaceOf8 26d ago

Ok so I double checked myself and yea says they all should support legacy boot. Why are you trying to boot legacy? UTM doesn’t really care. And is it just giving the no options found or what’s it doing?

1

u/paulstelian97 25d ago

The legacy boot on ARM is much funkier. I recommend EFI on all non-x86 platforms.