The software described in this documentation is either in Extended Support or Sustaining Support. See for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

2.2.5 Console Appears to Hang when Booting

On some hardware, the console may appear to hang during the boot process after starting udev. However, the system does boot properly and is accessible. A workaround to this problem is to add nomodeset as a kernel boot parameter in /etc/grub.conf. (Bug ID 10094052, 13485328)