On 08.09.17 22:22, Craig Sanders via luv-main wrote:

except that udev will **always* run before any NIC is up, while ifrename may not - and will bail if the NIC is in use. which, IIRC, provided the motivation for me to finally switch from ifrename to udev years after udev had the capability.

Whatever works best in the use case, of course, but from "man ifrename": "Ifrename must be run before interfaces are brought up, which is why it's mostly useful in various scripts (init, hotplug) but is seldom used directly by the user." Sounds like mdev will be worth a look once it matures a bit. (Will have to try to remember.) Erik