If you experienced an issue creating a NetBoot Environment, with the error "The installer encountered an error that cause the installation to fail" then you have media from Apple with an expired certificate.
原因
Apple's certificate expired on March 23, 2012, and this expiration is causing the issue you see in the image.
解决办法
To resolve the issue, please either:
Change the date on the system you are using to create the NetBoot Environment to March 22, 2012 and then reboot the machine (leaving the time sync off).
