I have just bought a new ASUS laptop for my son. It have pre-installed Windows 8.1. I made my usb-live stick as I use to and tried install ubuntu. It use to be simple.
I switch off fast-boot in bios and also the fast-boot in windows. I selected to boot the usb in the bios. The laptop boot up grub and I select Install. After this the ubuntu shows the slash screen as usual. But the boot process halts. The boot console prints the following message.
staring version 219 systemd[1]: [/lib/systemd/system/casper.service:10] Failed to parse input specifier, ignoring: force-tty
And after this nothing happens (The machine is frozen).
Note. I have tried with Xubuntu 14.04, Xubuntu 15.04, Kubuntu 15.04 and Ubuntu 15.04 Same result on all four distributions.
The laptop is ASUS F553MA Celeron 4GB 500GB HDD 15.6"
It used to be very easy to install ubuntu. But for the last 2-3 years it is just getting more and more difficult.
I don't need the Windows OS. So how can I install ubuntu if I can boot from a live usb.