Not to beat a dead horse, but I'd like to clarify a few issues that seem to be not working.
1. I compiled and installed Grub_trunk on an old laptop, then copied the debian.iso to a folder under (hd0,gpt*). Modified the grub.cfg and tried to use "syslinux_configfile -i (loop)/isolinux/isolinux.cfg -r (loop)" I got the exact same result as PXE booting (No CD-ROM). From what I can tell, debian needs the loopback module from the iso loaded and the iso to be loop-mounted as a second device in order to get this working (have not asked the debian folk). 2. Most Debian-based iso's fail to properly boot with loopback over PXE, including the likes of GParted and Inquisitor. They mostly fail with kernel panic: can't mount root. 3. MEMDISK: There were several programs I can boot from my USB setup by including syslinux memdisk. These now fail due to memdisk error - for example (<...> means options I have tried): menuentry "HDT: hardware diagnostics tool" { set root="http,192.168.2.100" set memfile="/pub/tftp/rescue/rscd/memdisk" set isofile="/pub/tftp/rescue/rscd/hdt.img" linux16 ($root)$memfile <keeppxe floppy raw safeint> initrd16 ($root)$isofile } With PXE, memdisk may need to be replaced with gpxelinux.0, but that will require using Grub's broken pxechain. Is there a better way to do this? syslinux apparently can also use memdisk for iso booting KERNEL memdisk \ APPEND iso initrd=http://192.168.2.100/path/isofile.iso 4. I think it would be a great idea if known grub.cfg entries could be listed in the official Grub-wiki. The distro maintainers might also be convinced or willing to post their code and solutions regarding iso loopback from HDD/USB/PXE variations. I don't know, Just an idea... Regards. _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel