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