Comment 5 for bug 1062737

Hi Thomas,

Thanks for the interest!

Here's the full command line being used for our image build currently:

xorriso -as mkisofs -r -checksum_algorithm_iso md5,sha1 -V Ubuntu\ 12.10\ amd64 -o /srv/cdimage.ubuntu.com/scratch/ubuntu/daily-live/debian-cd/amd64/quantal-desktop-amd64.raw -isohybrid-mbr syslinux/usr/lib/syslinux/isohdpfx.bin -partition_offset 16 -cache-inodes -J -l -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat -isohybrid-apm-hfsplus boot1 CD1

So the goal here is to be able to boot this image as a CD or USB disk image, under either BIOS or UEFI (and including the Mac UEFI implementation). I was assuming the -partition_offset 16 was relevant for MBR booting, but perhaps I'm mistaken.