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What happened: 'yum' update command created a new kernel-header, your old NVIDIA driver (that manages your graphics cards), was compiled to the old kernel-header before you ran the 'yum' update, so now GUI will not load.

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titleExample of the new kernel you may have accidentally added

Referencing the image below, in most cases:

  • CentOS Linux (3.10.0-1160.42.2.el7.x86_64) 7 (Core) ← Your new default kernel-header after running yum update (NVIDIA driver NOT compiled to this kernel-header)
  • CentOS Linux (3.10.0-1160.31.1.el7.x86_64) 7 (Core) ← Previously working kernel with display (NVIDIA driver was properly installed and compiled to THIS kernel-header)
  • CentOS Linux (3.10.0-1160.11.1.el7.x86_64) 7 (Core)  ← Fresh install, after updates to setup for initial NVIDIA driver installation (disabling Nouveau) (NVIDIA driver was properly installed and compiled to THIS kernel-header)
  • CentOS Linux (3.10.0-1127.el7.x86_64) 7 (Core) ← Created during the initial CentOS installation (fresh install)
  • CentOS Linux (0-rescue-d7d3687fde2848c18c21b05a0cfe21cf) 7 (Core) ← Created during the initial CentOS installation

Disclaimer: Exxact is not responsible for troubleshooting or resolving issues arising from software updates made to the system after the system has shipped from Exxact. These include Operating system updates and application updates. Exxact may help with this on a best-effort basis at Exxact's discretion. 

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