How to upgrade Ubuntu 12.04 to 14.04 by making a USB drive boot disk

1 introduction in the afternoon of Saturday, I decided to look at the book at high Speed [1]. Look at what this Ubuntu Bible is talking about.

It feels good to say that when I see the introduction of the document Markup language-tex and Latex, the author recommends the teTeX software package that is often used on Ubuntu, but I did not find the software in the Software Center (software centre) through the Query (SEARCCH) dialog box. Then go to the author's recommended home page about teTeX (Www.tug.org/tetex) to learn. Discover that teTeX has ceased maintenance since 2006, suggesting an interest in Tex installation and attention texlive. I was amazed. teTeX is so old! This is not to blame, because the author's book was published in the year 2007.

Follow through, continue to use Google search to install Texlive method, the results found a lot of Ubuntu enthusiasts have already updated to the new version number. And I'm still using Ubuntu 12.04. I also decided to upgrade the desktop Ubuntu system. Note that Ubuntu 12.04 in 12 refers to the 2012 published distribution. It seems that the version number I'm using is really a bit old. I still feel like I'm using a newer system? Just to blame the time flies, time too fast ah. Ubuntu 12.04 is not feeling well, the new version number has come out. Then welcome the new things.

Next, I'll explain how to use the USB drive boot disk method to upgrade Ubuntu 12.04 on the desktop to Ubuntu 14.04.

2 make USB drive boot disk 2.1 Download the Ubuntu 14.04 ISO image file for the image file for Http://www.ubuntu.com/download/ubuntu-kylin-zh-CN.

The distribution, known as the Ubuntu Kylin 14.04.1 Long-term support edition, is a version number specifically designed for Chinese users. I specifically check the desktop to find the 64-bit computer, so choose to download the 64-bit ISO file. The name of the downloaded image file is Ubuntukylin-14.04.1-desktop-amd64.iso, note that amd64 in the file name is not meant to be installed only on AMD 64-bit CPU machines, but on Intel-branded CPU computers. Don't be fooled by the name of the file.

Put the file in the F:\OS\Ubuntu 14 04 Directory of my Win7 system.

2.2 In the Win7 system to make a U disk Ubuntu Startup disk in the Win7 system to make Ubuntu system USB disk Boot disk method, please follow "how to create a bootable USB stick on Windows" (Http://www.ubunt U.com/download/desktop/create-a-usb-stick-on-windows) is described in.

The prepared USB drive space is at least 1G. Although the download of the ISO image file size of about 1.1G, but the production of USB disk boot disk, the actual use of the USB disk space is only more than 800 trillion. In addition you need to download a universal USB Installer (http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/) software, which is EXE file, Download it and you can use it. Installation is not required.

Make a good U disk boot Disk 1 to see.

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Figure 1: Making a good ubuntu USB boot disk

It turns out that it is very difficult to make a USB boot disk. After really doing this thing only to find the process is very easy. Don't be intimidated by yourself when you meet one thing.

3 Update to upgrade Ubuntu 12.043.1 Settings desktop PC booting from USB stick This setting is very easy and you just have to get into the computer's BIOS interface. Set to boot from the USB flash drive is available.

But I was having trouble doing it. Because it is a laboratory with the computer, I do not know is to press that shortcut key talent into the BIOS setup interface, to a search on the internet, found that different brands of desktop computers into the BIOS of the shortcut keys different, some press ESC. Some f8,f9,f11. or F12. No way, I just have to try.

After repeated restart of the computer about 10 more time, only to find the F11 button.

In particular, you must connect the USB flash drive to your computer when setting up your computer from the USB stick. Figure 2 shows the keyboard shortcuts for entering the BIOS interface for different brands of computers. But not comprehensive.

Figure 2: Shortcut keys for different brands of computers entering the BIOS

3.2 Upgrade Ubuntu 12.04 the USB flash drive disk made in section 2.2 can be used as a new installation disk or as a system update upgrade disk. Supported by the live CD provided by Ubuntu. The disk can also be used as the Ubuntu system experience disk, that is, do not install the system, through the USB stick boot system. To experience the system. Upgrade steps such as the following, from the USB stick boot will appear installer boot menu, the menu below will give a few options, please select Install Ubuntu Kylin, and during the installation process, The installer will find a system Ubuntu 12.04 already exists on the hard drive. A few RadioButton will be given at the same time. Please select this option for update to Ubuntu 14.04, then set the time, username, user password, etc. until the upgrade is complete. Because the version number is designed for the Chinese user version number, during the installation process will appear Kingsoft Kuaipan Client (Jinshan fast), Sugou Input method, WPS software, such as the introduction of information.
Of course. Assuming the original system you have done the backup work, then completely new installation. 3 After the upgrade is complete.

Figure 3: Post-upgrade Ubuntu 14.04 interface

4 Summary Tips. Suppose there were any errors during the upgrade process. will be able to perform a new installation. Why upgrade the system in such a way? I always get an error when I let Ubuntu 12.04 update online. The hint is a network error, and the upgrade can only jump one level at a time, but not the level of upgrade.

References
[1] William von Hagen. Ubuntu Linux Bible. Wiley, Indianapolis, in, 2007.

How to upgrade Ubuntu 12.04 to 14.04 by making a USB drive boot disk