I found https://bugs.launchpad.net/bugs/290153 had similar problems with dropping to a busybox and the work around was adding rootdelay=90 I tried this on a recently created usb stick and found success, it booted to the Desktop there are other things that users tried but simply giveing a wait provided success.
-- busybox with (initramfs) / boot: / kernel not found https://bugs.launchpad.net/bugs/276822 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
