Im install linuxloops on usb(ventoy) and launch this witch secure boot and he gives out this.
BusyBox build in shell (ash)
When writing exit he deduces :
Gave up waiting for root file system device. Common problems:
-boot args (cat /proc/cmdline)
-Check rootdelay= (did the system wait long enough?)
-Missing modules (cat /proc/modules: ls /dev)
ALERT! UUID=****** does not exit. Dropping to a shell!