Linux compute nodes and desktop machines will be rebooted on Thursday, June 22nd for software and security updates. This includes both RHEL 6 and CentOS 7 systems. Updates will be applied to machines between 7:00 pm and midnight. In an effort to try to minimize any corrupted files or lost data, please save all your work and log out of any Linux systems before 7:00 pm. 

We will also be shutting down crunchy6 down early to upgrade it to CentOS 7 like the other crunchy[1-5] servers. If you have any processes running on this host, please migrate them to other servers before Thursday.