* BootLoaderSpec: drop allowing ext234 for $BOOT. Clarify that the
kernel has to be in $BOOT. Clarify that the boot loader should be
installed to the ESP. Define a way how an installer can figure out
whether a BLS compliant boot loader is installed.
* BootLoaderSpec: drop allowing ext234 for $BOOT. Clarify that the
kernel has to be in $BOOT. Clarify that the boot loader should be
installed to the ESP. Define a way how an installer can figure out
whether a BLS compliant boot loader is installed.