Install Linux (ubuntu) under a U disk-portable Ubuntu and use DD to make USB disk installation tools __linux

First of all, I would like to say:
I'm here to say two things: first, install an Ubuntu system into my personal USB drive so that I can go where I want to take my Ubuntu system and be more convenient. Second, make a USB disk to start the installation of Linux tools (I here or on Ubuntu to operate), to install the computer Linux system
First to say:
We often install Ubuntu in VBox or VMware and other virtual machines, which I think we will install it, and installed on the U disk and the process is similar, only need to pay attention to the following points:
1. After the new virtual machine (this new virtual machine and the usual under VMware installation), in the settings to modify two places

Remove the hard drive created when you create the new virtual machine and remove the button below

USB device compatible with the hook here, Compatibility 2.0 (if the U disk is 3.0 interface, then change to compatible 3.0)

2. Now you can start the boot, plug in the U disk, to ensure that the virtual machine to identify the U disk, a U disk logo in the virtual machine. And then you go to the next part of the plate.

If you think that too much trouble, directly select the first also no problem, or you can choose the last one, their own points, and our usual installation is exactly the same, but we are now on the U disk is just inserted on the disk.
3, the installation of the location of the attention must choose to be a U disk, is your installation location of the Drop-down list will see a USB, that is a U disk. The rest is the same as we usually do, the installation is OK.
Note: I do not have a screenshot here if you refer to the following, please see:
http://blog.csdn.net/qq_24369113/article/details/53179218

Again, the second one:
The second is the general Taiwan said that the installation of their own computer Linux is not under the virtual machine with mirrored files, so the installation of Linux is installed Windows like, boot to boot from the U disk, and then use U disk Tools installed Linux, I am here to Ubuntu.
Note: I made this tool is made under the Ubuntu, with the DD command, if you do not have off-the-shelf Linux system, then use the tools to make it, there are many online, also very fast.

First the U disk format, and then in the Ubuntu insert a U disk, guaranteed to be recognized, and then a command on the OK.

The path behind this if is your system mounted mirror file path, the path behind is your U disk path, this command after the execution of a 4, 5 minutes, our U disk installation tools to make good. We can use it to install the Ubuntu system for the computer.