After searching for a long time, I haven't found a suitable installation tutorial about centos8, so I wrote a blog for your reference by referring to the official documentation.
1. Download the image file
I downloaded the latest version of centos8. The download address is: http://isoredirect.centos.org/centos/8/isos/x86_64/ . Note
that there must be a small partner to ask why you want to download dvd1 when downloading the dvd1.iso file. The iso file, look at the picture below, roughly means: dvd contains the installation program and a collection of all the software packages that can be installed during the interactive installation process, while boot only contains the installation program and does not contain any installable software packages. Officially recommended We download dvd
2. Make U Disk Boot Disk
The mirror image has about 8 gigabytes, so prepare a 16G U disk for the U disk, download the authoring tool, and the download address: https://github.com/FedoraQt/MediaWriter/releases/tag/4.1.80 , which is also officially recommended by us Use, download according to your own system, after the download is complete, brainless next step installation, installation is complete, run and
select custom image, select the downloaded image file,
select U disk, write to disk,
remember to back up the U disk in advance, and wait for it to finish writing , It’s a long time, it’s recommended to use USB3.0
boot configuration to install the
system disk. After the system disk is made, connect to the computer, turn on, and choose the first one to install directly. The system will automatically recognize and boot into the installation interface. It is strange that the official recommendation is not reported. If you don’t find the mounted U disk, then you don’t care. Choose the language you need, click Continue to continue to
configure the installation information summary, choose local for the installation source, choose the disk you want to install as the installation destination, and other things such as time and software The choice can be based on my needs. I play commands, so I don’t need GUI interface points. After the configuration is complete, click Start to install and 
configure the account password. This is based on your needs whether to create a sub-account and set the root user password, or not Set, and then wait for the installation to complete. After the
installation is complete, click Restart, unplug the U disk, wait for the system to start, and start experiencing centos