Re: how to compute predictable network interface names?

[Stephen Powell <zlinuxman@fastmail.com>]

On Thu, Feb 23, 2017, at 10:16, Harald Dunkel wrote:
> On 02/16/2017 12:47 PM, Christian Seiler wrote:
> > 
> > On a system with predictable names running? Or on a system
> > pre-upgrade?
> > 
> 
> Its more "pre-installation". I boot a USB stick and run
> my own installer (using debootstrap or creating a clone).
> The NIC name is needed to setup /etc/network/interfaces.
> I know how the interfaces are named using the old scheme,
> but the predictable names are hard to guess.
> 

Debian used to assign network devices based on MAC address.
If you want to continue doing something like that, use the
kernel boot parameter

   net.ifnames=0

and create your own udev rule.  For example:

   /etc/udev/rules.d/76-netnames.rules:

   # Create custom network interface names based on MAC address.
   SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="00:11:25:86:61:87", NAME="net0"

This rule will assign the Ethernet adapter with MAC address 00:11:25:86:61:87
the interface name net0.  Reference the interface by this name in
/etc/network/interfaces.

I hope this helps.

-- 
  .''`.     Stephen Powell    <zlinuxman@fastmail.com>
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