USB boot/squashfs mount issue/Question

[treedavies]

Hi dracutdevs,

I am attempting to boot from a USB drive using kernel 5.4.41 with a initramfs built with Dracut 0.50 from syslinux/isolinux. This is done on a LFS system. I specifically include the dmsquash-live module in my /etc/dracut.conf

My menu config looks like: linux /LiveOS/vmlinuz.x86_64 root=live:CDLABEL=Physix-Project rd.live.image APPEND initrd=/LiveOS/initramfs-img.x86_64

At boot, the system halts soon after the following message. dracut: FATAL: Don't know how to handle 'root=live:Physix-Project

I see the root=live:CDLABLE=<label> used by several other distro's live images. If I use an initrd/initramfs from those distros, it works.

So my question is: What is needed, and missing, from my initramfs to recognize this option?

best regards, Tree