Windows7 and Ubuntu dual system installation is very easy. When installing Ubuntu, a graphical interface has been provided to help users install it. You can choose to wipe out the old Windows operating system by installing Ubuntu alone, or you can choose to coexist with Windows and boot Ubuntu with Windows. But this creates a problem – if you want to delete the Ubuntu operating system and erase the disk space previously allocated to Ubuntu, you will destroy the Windows MBR partition. This is because the data in the MBR partition will be overwritten when you install the Ubuntu operating system as instructed by the original system installation disk.
Xiaobian has also had this situation before. As a result, Windows stopped working even after I deleted the entire Ubuntu partition. At this point, you can actually do a job of recovering your “lost” Windows operating system. Restore the MBR partition. A common, old-fashioned way to do this is to enter DOS using the fdisk/MBR command. But when xiaobian was used, it seemed not to work. Go to Windows, call up CMD, and use bootrec /fixmbr to fix the MBR partition.
So is it a lot of trouble every time? Can we solve it at the source? You can. This can be fixed when installing the Ubuntu operating system. The following is a small series of steps to install the operating system, do not destroy the normal use of Windows.
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1) Download the Ubuntu Desktop OS
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Can be in the following web site: http://www.ubuntu.com/download/desktop
Download to the Distribution of Ubuntu Desktop. Download the Ubuntu Desktop operating system for your computer based on your usage and CPU usage.
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I recommend you to download Ubuntu 14.10, because you need it when developing Ubuntu phones and tablets. The editor chooses the 64-bit 14.10 operating system here.
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2) Disk partitions
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In this step, you will partition your disk. 20GB of disk space is fine for general use, but not enough for development. Ubuntu has been allocated 100GB of space here.
Right-click on my “computer” and choose “Manage”. After opening it, select “Storage – Disk Management” and you will see a virtual image of your hard drive. In fact, there are other external storage devices will display.
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Right-click on a disk partition and select “Compress Volume”. Follow the steps and enter the desired disk size.
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3) Make a USB boot disk
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Find a USB drive, 4G, should be enough, plug in the COMPUTER USB port. Here small make up using UltraISO (cn.ultraiso.net/xiazai.html…
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“Open file”, locate the Ubuntu installation file you just downloaded, and “Open”
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Select “Start” — “Write hard Disk Image”
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Be careful here, “hard drive” is not your usb drive. If you plug in other storage devices, be sure to look carefully, otherwise it will cause unnecessary losses.
Then click “Write” and wait until the words “burn succeeded” appear.
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At this point, your USB disk installation disk is ready.
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4) Install Ubuntu
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It’s an exciting time to install Ubuntu
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Boot Manager to select USB Boot. The way to access the Boot option varies from computer to computer, but there is no more than the function key for F12, F10, F2, etc.
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Here you have a choice
- Use Ubuntu but do not install it
- Install Ubuntu
- OEM installed
- Check the disk
Here we select “Install Ubuntu”.
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Note: If you see the following screen, please:
- Check the USB port of the computer
- Replace the USB boot drive with a new USB boot drive
- Plug and unplug the U disk to see if there is a contact problem
The most likely problem is the USB flash drive. Therefore, use a USB flash drive with a good chip. Sandisk is recommended
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Then there are the language selection, wifi, and other pre-installation Settings.
But let’s be careful and take a closer look at the installation type here.
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There’s a little bit of caution here
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Install type Select other options
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Select the disk you just detached from Windows and select the “Ext4 Journaling file System” mount point “/”
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When you do that, your disk will be in Ext4 format
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Then select your drive in the “Install boot device” column, which is “SDA6” (everyone’s computer may display it differently).
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Then select format – Install now
After selecting a time zone and setting a user name and password, the installation process will begin
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After this step, Ubuntu has been installed on that partition.
The computer will restart automatically
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5) Set up boot
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After the above installation, restart to enter Windows boot without Ubuntu.
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This step is to set up the Ubuntu boot.
When we get to Windows, the software we use is EasyBCD(easybcd.softonic.cn/)
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Select “Add New Entry” select “Linux/BSD” — select “GRUB2” and name it Ubuntu, click “Add Entry”
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6) Restart the computer. The installation is complete
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After rebooting your computer, you should see Windows boot with options for the Ubuntu you just created. Selecting Ubuntu will take you to Grub. It will then enter the Ubuntu operating system.
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If you delete Ubuntu, you won’t be able to start Windows
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Ubuntu xiaobian original, welcome to reprint!
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