> getting this with 1.91 from ARMedslacks bootware for riscpc. > > Internal error: abort on data transfer at &03815F8C Have you tried Tim's own binaries? http://www.majoroak.f2s.com/tim/grub/RISC_OS/ http://www.majoroak.f2s.com/tim/grub/RISC_OS/binaries/grub-1.91-teb3.zip Mine work for me but perhaps his work for you?