On the internet about Windows and Ubuntu system good and bad war has been non-stop, so I have been spared the war of words. In fact, any one system, have their own advantages and shortcomings, almost no system is perfect. such as BlackBerry mobile operating system, in order to ensure security, does not allow software installation to external storage equipment (such as: SD card), so can only be installed to mobile phone storage. But the cell phone storage capacity is limited, so the BlackBerry phone can be installed in the number of applications is basically determined by the configuration of the phone is good or bad. As for the advantages and disadvantages of Windows, I will no longer spit here, I believe that everyone is obvious to all.
Both can not be both? No, have a lot of ways, such as buying two computers! Well, of course there's an affordable way to install a dual system. Although you can try the way Wubi is installed. But the Wubi installation way is like in the virtual machine to run the system, there are many unstable factors, before a netizen tried this way to install, then regretted. Because of this installation, the system crashes easily. Although it is recommended that novice try Wubi installation method. However, based on the above analysis, try to install a dual system is also not the case, because the installation of dual systems is not difficult, the following start the installation journey.
1.Ubuntu 12.04 LTS has been released for some time and has been available on the Ubuntu 12.04 download link in my previous article, "Ubuntu 12.04 LTS official release." As for the choice of 32 or 64, to see your personal preferences, as to choose Desktop (LiveCD) version or alternate version, it is recommended to select the Desktop version, the graphical interface is more convenient.
2. Prepare USB flash drive or CD-ROM;
3.EasyBCD, a system to boot the software, a lot of online, you can download the installation.
4. Local disk has more than 20G of storage space (recommended)
To begin the installation:
1. Download the system image, the ISO file to burn to the CD or U disk, if the computer support from the USB start, it is recommended to select the latter;
2. Then provide disk space for the installation of Ubuntu. Start Menu--Right click on "My Computer"--select "Manage (G)"--storage--Disk Management (local). For example, your local disk (F) has 80G, and you want to allocate 20G of space for Ubuntu installation. Then click on the F disk, right-click "Compress volume" and enter 20480 in "Input compressed space", then press "Next". Note: It is best to select the last disk on the local disk to use for the compression volume, which is a bit complicated, and I don't understand it for a while;
3. Then, reboot the computer, set the motherboard BIOS first boot for the CD-ROM or USB device;
4. Enter the Ubuntu installation start interface, first select the language, then select "Install Ubuntu", check "install the third party Plug-ins", the next step;
5. Enter to inquire whether to connect the network, the temporary choice "does not connect the network" also to be OK, otherwise installs when downloading and installs the system update will lengthen installs when, clicks "continues";
6, a window asking "Installation Type" appears, as shown in the following illustration. Be sure to remember to choose "
other Options ", which may cause Windows to not start properly;
7. In the new window will show the use of the disk, here is the key! Click the "Free" section and select the "Add" button below to configure the Ubuntu partition in the new pop-up window. The partitions that need to be configured are "/", "/home", "/boot", "/swap" (Swap partition to select Swap partition in the for Drop-down list).
"/" Assigned 10G, "/boot" allocated 200M sufficient, "/swap" Allocation 2G (if your physical memory is 2G), the rest of the free space allocated to the "/home" bar. The following figure is the picture that my computer displays after I have allocated space:
8. Then, in the "Install Boot boot Device", select the device where the "/boot" partition is located, such as my "/dev/sda6". This step is especially important, otherwise it may cause Windows to fail to start.
9. The next operation is simpler and less risky. Is the setting of some other chop-suey option, such as user name and password, as shown in figure:
10. The welcome interface will then appear, as shown in the figure:
11. Then restart the computer, will naturally enter the Win 7 system, run EASYBCD, "Add New Entry"--"Linus/bsd"--type Select "GRUB (Legacy)"--device Choose Linux The option that starts with a size close to 200MB because the "/boot" Partition previously set is 200MB. Finally click on the "Add Entry" on the right to complete the configuration. After the configuration is complete, the screen looks like this:
12. Restart the computer again, you will see the following screen, indicating that the installation of the dual-system task has been successfully completed!
How to upgrade/uninstall Ubuntu:
You need to remove the partition where Ubuntu resides in the Windows environment, and it is convenient to remove the boot from the  EASYBCD configuration before removing it. If you need to upgrade a new system, you can repeat the above process, except that the ISO image file is a new system, others the same.
How to troubleshoot configuring dual systems Win7+ubuntu encounters an inability to read a partition correctly
When you go to install type, you are unable to read the free disk space, and the disk displayed and before The partitioning situation seen by Win7 is completely different. Operations such as "compressed volumes" that were previously configured under Win7 are normal operations. However, the following screen appears:
is actually causing the problem because Win7 uses dynamic disk instead of basic disk, which is used by the. The microsoft of all evils, my pure soul has been unable to spit on you. =
If it is dynamic disk, Ubuntu cannot differentiate between disk conditions. So, the next thing to do is to convert the dynamic disk to a basic disk.
Although there are many methods, such as reloading the system, but this method is more cumbersome to do, you need to do a backup of important files, and then reload the system, and then reload the relevant desktop software and applications.
It is recommended that you use the partitioning assistant to accomplish this arduous operation, and that it is a lossless transformation that guarantees the security of your data.
