A more surefire option is The Plop boot manager (burned to a CD). It's not free though since it can't be used commercially. But I know it works.
Try a "proper" CD. Perhaps try having Super GRUB2 disk on it (I'm not sure it
boots to the USB drive, though).
- [Trisquel-users] Help with installing Trisquel on MacBook? adamjjennings
- Re: [Trisquel-users] Help with installing Trisquel on M... Bader Zaidan
- Re: [Trisquel-users] Help with installing Trisquel on M... jbar
- Re: [Trisquel-users] Help with installing Trisquel on M... jabjabs
- Re: [Trisquel-users] Help with installing Trisquel on M... davesamcdxv
