On 8/14/2017 4:01 PM, Mark LaPierre wrote: > You didn't say what brand/model of UPS you are using so I can't be > specific. Check with the manufacturer of your UPS to see if they have > an application that can communicate power status with your CPU. Many > UPS devices are capable of signaling power loss. The UPS can give you > enough warning to initiate a graceful shutdown. > > For example APC brand UPS devices. Many of them can connect to the CPU > through either Ethernet, USB, or serial cable so they can send the bad > news that the power is going down soon. Check with your UPS > manufacturer first. NUT supports virtually *ALL* UPS's without messing with manufacturer proprietary software, and its in the EPEL repository, kept up to date. -- john r pierce, recycling bits in santa cruz