The Acronis CD boot uses a El Torito floppy image
IsoBuster free displays the layout http://www.isobuster...ense-models.php
Example: Boot image start at LBA 76543 (4*76543 = 306172)
The ElTorito image size is not defined:
The next file LBA 145678.
Image size = 4 * (145678-76543) = 276540
Example grub.cfg, adjust LBA numbers yourself
menuentry "Acronis True Image Home 2014 ISO ElTorito" { set quiet=1 set gfxpayload=1024x768x32,1024x768 set mbrcrcs=on set isofile="/images/ATIH2014.iso" search --set -f $isofile loopback loop $isofile echo mount the El Torito floppy image loopback ElTorito (loop)306172+276540 #ls (ElTorito)/efi/boot/ linux (ElTorito)/efi/boot/dat9.dat quiet initrd (ElTorito)/efi/boot/dat8.dat boot }