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Most people do not understand the knowledge points of this article "how to install Windows+Linux dual system", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "how to install Windows+Linux dual system" article.

1. Preparation work 1.1 U disk boot disk production prepare a U disk of more than 8G (actually 4G is enough), back up the data, and then format the U disk.

Then go to ubuntu's website to download the ISO format image you want to install, usually Ubuntu 18 or Ubuntu 16. If you are not good at English, you can choose to use chrome browser, which will translate automatically when you open the web page.

Next, make a U disk boot disk, using the tool Rufus.

Open after download, select the image file you downloaded, it will automatically set the parameters, and then click "start" to wait for completion.

If prompted, you can choose by default.

Detailed tutorials are also available on the official website, with a link here, and if the link fails, you can find it at this location on the official website-the last place you download the mirror page.

1.2 allocate disk space to allocate a piece of space from the current computer's hard disk to install ubuntu.

Windows + x Select disk Management, or right-click my computer-> manage-> disk Management.

Select in addition to C disk and have enough spare space (100g or more), if you meet the previous conditions, you'd better choose the last drive letter (E for three CDE disks and F for CDEF), right-click the compressed volume and enter the space you want to allocate to the ubuntu system, here you can take a look at the ubuntu partition introduced later and then choose the space to be allocated according to your actual situation.

I have a lot of space left. I have 600g here. You can see that 600 gigabytes of space is isolated and later allocated to ubuntu.

two。 Install ubuntu to plug the u disk boot disk you just made into the computer, press the hotkey at boot time to enter the startup item selection, you should see a very conspicuous startup item with the word ubuntu, select that one.

Then you can see the ubuntu startup screen, and then there are several options for you to choose from. The first two should be to try ubuntu and install ubuntu, and choose to install.

Prepare to install, if there is a network, it is recommended to check the option to download the update.

Next, select the installation type, erase the entire disk will cause the original windows system to be cleared, choose other options to partition ourselves.

You should be able to see a lot of partitions in this interface, including a piece of free space that you allocated earlier.

2.1 Partition goes on to say zoning, which divides your free space into several pieces, each with its own responsibilities.

Ubuntu Linux can load the partition as a mount point into the directory. The most commonly used hard disk size (500G-1000G) allocation directory is recommended as shown in the following table:

The directory recommended size format describes the temporary files of the ext4 system around / 150G-200Gext4 root directory / tmp5G. Generally, system restart will not be saved. (do you need to set up a server? ) / boot1G is about the boot starting position of the ext4 system. It is recommended that the kernel larger than 400MB or 1GB Linux and the files needed by the boot system program, such as the vmlinuz initrd.img file, are located in this directory. In general, the GRUB or LILO system boot manager is also located in this directory; startup hits the file storage location, such as kernels,initrd,grub. / home make the working directory of ext4 users as large as possible; personal profiles, such as personal environment variables; and assign a working directory to all accounts. Twice the swap space of swap physical memory: swap partition is equivalent to "virtual memory" in Windows, if memory is low (1-4G), twice as much as physical memory, high point (8-16g) is either equal to physical memory, or physical memory + 2g / tmp is optional, boot leaves 1G, root directory and / home suggest to leave more space, tens to hundreds of gigabytes, according to actual needs In the allocation, it is best to allocate other space first, and finally allocate exchange space 2.2 partition demo select your free area, click +, first assign boot there is such a saying, dual system-originally the computer already has a guide for the main partition type, the / boot here choose "logical partition" on it Select "primary partition" for a completely blank whole disk / boot. I haven't tried them all, but it should be right.

However, if it is a completely blank disk, you do not need to partition yourself, just choose to erase the entire disk at the beginning.

Special note: this article was written later, I did not keep a screenshot of the installation of ubuntu at that time, this part of the picture is taken from someone else's blog, his boot is only allocated 300 MB, my suggestion is to divide it by 1G.

Then click + to assign other areas, the partition types are all logical partitions, and the location is the starting position of the space. If you allocate the size, you can divide it according to my suggestion-- the scarlet letter under the partition table.

When allocating swap space, change the use option to swap space.

2.3 the installation partition is complete and ready for installation.

Select the partition corresponding to / boot on the device on which the boot loader is installed. Click install after confirmation.

Then there are some simple geographical and language choices, create users, and no longer introduce.

Waiting for the installation to complete.

After the installation is complete, go back to the windows to see what the partition looks like.

3. After the startup item is modified and the dual system is installed, your computer may choose windows boot by default. If you want to start by default ubuntu, you need to modify the startup item!

Enter the windows system, download the tool EasyBCD, and search directly on the Internet if the link fails.

Move the system options you want to start by default to the top.

The above is about the content of this article on "how to install Windows+Linux dual systems". I believe we all have a certain understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about the relevant knowledge, please pay attention to the industry information channel.

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