A common customisation request is to disable the boot menu prompt, in order to:

  • Make boots quicker
  • Disallow any boot time alterations

This is done by replacing the syslinux theme with progress-appliance in auto/config when building Webconverger.

--syslinux-theme progress-appliance

Thanks to Daniel on Debian-Live.

Without rebuilding

You can also try modify the ISO images as described in develop and change isolinux/isolinux.cfg to values in your live.cfg.

default linux
label linux
    kernel /live/vmlinuz1
    append initrd=/live/initrd1.img boot=live quiet ...the rest of your options