tak sem nasel
reseni, je potreba stahnout zvlast hd-media initrd
wget http://http.us.debian.org/debian/dists/Debian9.8/main/installer-amd64/current/images/hd-media/gtk/initrd.gz -O /media/tvujuser/tvojeusbflash/iso/debian-live-9.8.0-amd64.initrd-gtk.gz
wget http://http.us.debian.org/debian/dists/Debian9.8/main/installer-amd64/current/images/hd-media/initrd.gz -O /media/tvujuser/tvojeusbflash/iso/debian-live-9.8.0-amd64.initrd.gz
v grub.cfg pak initrd netahat z (loop), ale ten dotazenej a aby initrd nasel iso, NEsmi byt ulozene ve vice nez jednom adresari z korene (tedy, lze v /iso ale nelze v /boot/iso, to uz ho nenajde primo ale oznami ze nenasel iso a zda ma provest dukladnejsi(=vcetne vsech vnorenejch podadresaru) hledani a stejne ho pak nepouzije primo, ale zobrazi nabidku vsech nalezenejch ISO a muselo by se rucne vybrat to spravne)
menuentry "debian-live-9.8.0-amd64-xfce+nonfree.iso(install.gtk)" {
set isofile="/iso/debian-live-9.8.0-amd64-xfce+nonfree.iso"
set initrdfile="/iso/debian-live-9.8.0-amd64.initrd-gtk.gz"
loopback loop $isofile
linux (loop)/d-i/gtk/vmlinuz live-media-timeout=3 fromiso=$isofile video=vesa:ywrap,mtrr vga=788
initrd $initrdfile
}
menuentry "debian-live-9.8.0-amd64-xfce+nonfree.iso(install.txt)" {
set isofile="/iso/debian-live-9.8.0-amd64-xfce+nonfree.iso"
set initrdfile="/iso/debian-live-9.8.0-amd64.initrd.gz"
loopback loop $isofile
linux (loop)/d-i/vmlinuz live-media-timeout=3 fromiso=$isofile
initrd $initrdfile
}