Hi, Mario Marietto wrote: > You are right. It works without using the APPEND option
Yeah. Once again guessed right. :)) > I don't know if it's correct to use something like this in the ISOLINUX/menu.cfg file : > LABEL Custom Graphical Debian Installer > SAY "Booting Custom Graphical Debian Installer..." > linux /d-i/gtk/vmlinuz > APPEND boot=casper file=/cdrom/preseed/preseed.cfg auto=true > initrd=/d-i/gtk/initrd.gz append video=vesa:ywrap,mtrr vga=788 (I think there is again a surplus "append" in the "APPEND" line.) Let's read https://wiki.syslinux.org/wiki/index.php?title=Config "APPEND options... Add one or more options to the kernel command line. These are added to both, automatic and manual boots. The options are added at the very beginning of the kernel command line, usually permitting explicitly-entered kernel options to override them. This is the equivalent of the LILO "append" option. ... LINUX image Load image as a Linux-like kernel. MEMDISK is an example of a non-Linux kernel loaded in a Linux-like fashion." So with ISOLINUX, one has to add the kernel arguments by APPEND and the initrd by kernel argument "initrd=". With GRUB2 one adds the kernel arguments to the "linux" command line but the initrd is specified by a separate "initrd" command. (Further there are still Legacy GRUB configuration examples around in files named "menu.lst".) > Otherwise,is something like this ok ? > linux /d-i/gtk/vmlinuz boot=casper file=/cdrom/preseed/preseed.cfg auto=true > initrd=/d-i/gtk/initrd.gz append video=vesa:ywrap,mtrr vga=788 Only if i ignore the surplus "append". :)) Then i stumble over "boot=casper". The text https://www.kernel.org/doc/html/v5.10/admin-guide/kernel-parameters.html does not list a "boot=" option. It might be that some software in the Live ISO looks into something like the pseudo-file /proc/cmdline and acts if it finds "boot=casper" in the content of line "BOOT_IMAGE=". Have a nice day :) Thomas