How to resolve a black screen after starting CentOs 7 installation

If encountering a black screen upon booting after installing CentOS7, it could be due to a few reasons, with various solutions available.

1. Check hardware compatibility: Make sure your computer hardware is compatible with CentOS7. You can check the official CentOS website for a list of hardware compatibility to determine if there are any compatibility issues.
2. Check the startup options: during startup, press the Tab key to enter the boot menu and check for any incorrect startup options. If there are any errors, you can try deleting or changing them.
3. Update your graphics card driver: A black screen may be caused by incompatible or outdated graphics card drivers. You can try updating the drivers to resolve the issue. If you have an Nvidia graphics card, you can download and install the latest drivers from the official website. If you have an AMD graphics card, you can try updating the official AMD drivers.
4. Check startup services: Sometimes, startup services may cause a black screen issue. You can try disabling certain services at startup to determine which service is causing the problem. You can press Ctrl+Alt+F2 to enter the terminal, then use the command systemctl disable [service-name] to disable a specific service.
5. Edit startup parameters: You can try modifying the startup parameters to fix the black screen issue. During startup, press the Tab key to enter the boot menu, locate the line starting with “linux,” and add the parameter “nomodeset” at the end of the line. Then press Enter to start the system.

If none of the above methods work, we suggest trying to reinstall CentOS7 or contacting the official CentOS support team for assistance.