/usr/share/live/build/bootloaders/isolinux/live.cfg.in is in live-build 3.0~a57-1ubuntu11.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | label live-@FLAVOUR@
menu label ^Live (@FLAVOUR@)
menu default
kernel @KERNEL@
append initrd=@INITRD@ boot=live config @LB_BOOTAPPEND_LIVE@
label live-@FLAVOUR@-failsafe
menu label ^Live (@FLAVOUR@ failsafe)
menu default
kernel @KERNEL@
append initrd=@INITRD@ boot=live config @LB_BOOTAPPEND_LIVE@ @LB_BOOTAPPEND_FAILSAFE@
|