How to install the two-system detailed steps: Take Win10+centos as an example

I integrated the online many dual-system methods, at the same time on a variety of online version of the problem has been summed up, pictures from the Internet, allow me to steal a lazy, haha ...

Assuming the WIN10 system is installed on the computer, the steps are as follows:

Part I: Making U-disk Startup disk

The first step: Download the CentOS ISO file, you can go to the official website to download;

The second step: Download UltraISO (soft disk pass) software to the computer, and installed, you can first try or online to find a registration code registration;

Step three: Click the "Open" button on the menu bar (e.g.);

Fourth step: Find the downloaded CentOS ISO image file, select the file to open, such as:

Fifth step: See:

Sixth step: After confirming the error, click "Write". If the prompt cannot be written, click "Format" and then "write". Wait for write to complete ... Click Back. Turn off the soft disk pass. "At this point, the CentOS system installation USB drive is ready." "Here note a problem, after burning, delete the packages folder that burns u packing directory, copy Centos-7.0-1406-x86_64-dvd.iso to the root of the USB stick. My USB flash drive is 8GB, the real only 7.43GB, when the image file is written, found that there is no place to put the mirror, so we will remove the Packages folder, which is why the deletion of packages folder, so it is best to choose 16g U-Disk, This first uses UltraISO burning image to the USB flash drive (choose Format to FAT32 format when burning), and then copy the CentOS ISO file to the U disk, so there is space, and there is no need to delete the Packages folder to burn the U-packing directory. More worry when installing.

Seventh Step: Click on My Computer, right-click "Manage", then select "Disk Management", such as:

Eighth Step:

After entering the disk Management, partition the disk into a blank partition, for example, the D drive also has a 100g blank area, you can right-click and then delete the volume, select 50g Delete, if the D disk is not enough, you can split a little blank partition from the other disk. At the end of the installation, blank partitions are automatically placed together;

Part II: Installation of CentOS;

1: Restart, press F12 (different computer different keys) appear the following interface: This time some computers may appear USB legacy and UEFI two installation guidance, if you choose Legacy, the following interface appears:

When you press the TAB key, the following screen appears:

See the bottom line in English, and then make the following changes: Change the command to: >vmlinuz initrd=initrd.img linux dd quiet after the return, then will list your device list, in this list, do not understand Linu X I can clearly identify which is my USB flash drive, do not believe you look at the following picture:

Obviously, SDC4 is my U-disk, of course, you have to look at your own exactly what is, and then you can directly shut down after the computer (because I have tried to enter the number here, did not think of a dead loop, do not know where the error is or how, so I later directly shut down).

2: After restarting, as with 1, press the TAB key again, then change the command below to: >vmlinuz initrd=initrd.img inst.stage2=hd:/dev/sdc4 quiet, pay attention to SDC4, Of course different computer U-disks may not be the same.

After changing the return, then the installation interface;

(Just now if you choose the Uefi interface, there are a lot of tutorials on the web that may be used, and this will be written: You may press E to enter the edit screen,

Text that can be edited appears

SetParams ' Install CentOS7 '

linuxefi/images/pxeboot/vmlinuzinst.stage22=hd:label=centos\x207\x20x

\86_64 quiet

Initrdefi/images/pxeboot/initrd.img

Ctrl+x Boot, CTRL + C enters the grub command line, ESC exits back to the menu, tab lists possible complements.

' C ' enters the GRUB command line and then

linuxefi/images/pxeboot/vmlinuzinst.stage22=hd:label=centos\x207\x20x

\86_64 quiet changed to LINUXEFI/IMAGES/PXEBOOT/VMLINUZINST.STAGE22=HD:/DEV/SDB4 quiet

In fact, these tutorials do not tell how to find your U disk letter, and then look at the people casually input dev/sd ... Then start, and then wait a long time to appear the interface may be such "Warning:/dev/root does not exist, could not boot, and then online tutorials are saying so

dracut:/# ls

dracut:/# Cd/dev

dracut:/dev# ls

List some SDA sda2 sdb sdb1 ..... What, or do not understand, in fact, these tutorials are simplified, because there is no way to find the drive letter, so I suggest using my previous method, or if you know your own U-disk letter that can also be used uefi ... )

So you can install the dual system;

It is also possible to enter the CentOS installation interface when you verify that you cannot use the magnetic media installation. In fact, you can choose to import the image ISO file from the U-disk installation;

How to install the two-system detailed steps: Take Win10+centos as an example