Booting Kubuntu 14.04 from an external hard drive on the USB port of a UEFI Notebook

[Guest]

I would like to install and run Kubuntu 14.04 using an external hard drive connected to the USB 3.0 port of an ASUS X555LA notebook computer. This computer has UEFI firmware.

I am able to install the Kubuntu 14.04 on the external hard drive but when I try to start up the system using the external hard drive the system does not start up from the external drive.

However, the system starts up and runs with the very same OS installed on the internal drive of the same notebook computer.

Is there a particular set of UEFI settings that need to be used in order to enable starting up from an external hard drive?

Is there anything else that needs to be done to run the OS from the external hard drive?

[Simon]

Would that not be done by selecting the USB as boot or installing a grub menu? My laptop is partitioned in such a fashion to boot 16.04 or 14.04 from a grub boot menu. Since the drive is usb some systems as they boot will offer a boot menu by pressing F9 or some key on boot up. Editing your grub to point at a USB device should be possible too. I am not very good with grub menu editing, thus I could be wrong. I believe you will get a poor response time as most USB drives are just meant to back up data. I have loaded Linux from USB thumb and it really takes a much longer time to boot than the CD. It was a necessary evil as the computer in question had a broken CD ROM.

[SpecialEd]

Interesting, I've always found USB thumb drives to be quicker than a CD/DVD.

[Rod J]

Interesting, I've always found USB thumb drives to be quicker than a CD/DVD.

+1

[Simon]

Interesting, I've always found USB thumb drives to be quicker than a CD/DVD.

I don't know for sure, I am a doctor not a PC hardware specialist. I can only tell you it was a very long wait. I used it to recover files from a laptop where the Windows OS had crashed. They reinstalled Window after the documents were removed. The HP laptop had a partition for a destructive reformat of the HD. I basically followed a tutorial about placing the Ubuntu on a bootable thumb drive.

Is my assumption correct about editing the grub menu to point at the USB device? In my opinion, it seems like pulling up the CMOS boot menu on start up would be easier.