PSA: Workarounds for CentOS 7.3 Problems with SE Linux 2.5

PSA: If you update to CentOS 7.3 and see odd console or log errors like this resulting in a hung boot:

Failed to start Import network configuration from initramfs

and/or

work still pending
FAILED Failed to start Login Service.
See 'systemctl status systemd-logind.service' for details.
FAILED Failed to start Authorization Manager.
See 'systemctl status polkit.service' for details.
DEPEND Dependency failed for Dynamic System Tuning Daemon.

then you have a problem with CentOS 7.3 and SE Linux 2.5.

The workarounds are surprisingly simple:

  1. don’t upgrade anything until CentOS 7.4 is released (verified by me on Sept. 17 on a Dell 1950) or
  2. add selinux=0 to the kernel boot line in the boot menu and/or grub.

ask.fedoraproject.org: Startup fails with multiple errors
http://danwalsh.livejournal.com/38157.html

SSH: Unable to get valid context

Keywords: Virtualbox, linux, selinux, enforcing.

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