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Recently, windows and two Macs have been mixed to copy CentOS 7 installed in Windows VirtualBox to Macs
When starting CentOS 7, at the end of the GUI progress card, press ESC to see the following prompt:
Failed to load SELinux policy. Freezingcause analysis
It may be caused by SELinux setting error. As a result, after restart, the machine cannot enter the CentOS 7 boot menu normally, causing it stuck
solutions
1. When restarting, press e to enter grub page
2. In about 16 lines, after language, lang = * * * UTF-8 followed by a space, plus
selinux=03. Press Ctrl + X to start, that is to see the recording interface, and then execute
vim /etc/selinux/config4. The contents of the modified file are as follows, mainly non comment lines
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three two values:
# targeted - Targeted processes are protected,
# minimum - Modification of targeted policy. Only selected processes are protected.
# mls - Multi Level Security protection.
SELINUXTYPE=targeted5. After modification, press the VIM command: WQ! Save and restart the machine