默认情况下,Centos 7和Redhat 7使用biosdevname
rpm -qi biosdevname-0.5.0-10.el7.x86_64 Summary : Udev helper for naming devices per BIOS names Description : biosdevname in its simplest form takes a kernel device name as an argument,and returns the BIOS-given name it "should" be. This is necessary on systems where the BIOS name for a given device (e.g. the label on the chassis is "Gb1") doesn't map directly and obvIoUsly to the kernel name (e.g. eth0).