First of all, you have to burn the U disk boot installer through the U disk, and then follow the steps below to install and configure.
Set when the U disk is booted
After F12 enters the installation, you need to select the second one, and then tab to modify the root path to:
vmlinuz initrd=initrd.img inst.stage2=hd:/dev/sdb4 quiet
root root1102
admin admin1102
first boot settings
After booting, the following information is displayed
Initial setup of CentOS Linux 7 (core)
1) [x] Creat user 2) [!] License information
(no user will be created) (license not accepted)
Please make your choice from above [‘q’ to quit | ‘c’ to continue | ‘r’ to refresh]:
The solution steps are as follows:
1. Enter [1], press Enter to agree to the license agreement,
2. Enter [2], press Enter to read the license agreement,
3. Enter [q], press Enter to exit,
4. Enter [yes], press Enter to confirm,
5. After restarting, you can enter the graphical login interface
Graphical and non-graphical processing
remove the graphical interface
#mv /etc/systemd/system/default.target /etc/systemd/system/default.target.bak (renamed backup)
# ln -sf /lib/systemd/system/multi-user.target /etc/systemd/system/default.target (the re-soft connection text interface is the startup default interface)
#systemctl reboot (restart the system to take effect)
restore GUI
#rm -rf /etc/systemd/system/default.target (remove current configuration link)
#mv /etc/systemd/system/default.target.bak /etc/systemd/system/default.target (link to restore backup configuration)
#systemctl reboot (reboot the system to take effect)