Re: Debian 10 --> 11 on Dell R740: network interfaces renamed
On Wed, Jun 08, 2022 at 09:04:46PM +0200, Harald Dunkel wrote:
> after the upgrade to Debian 11 some network interfaces in my
> Dell R740 got renamed.
I strongly recommend that you create systemd.link(5) files, one for each
interface.
Make up some names of *your* choice for each interface (I'm using lan0
etc.), so there's no possibility of a conflict with a name that the
system might choose. Assign your names to the interfaces by MAC address.
unicorn:~$ ls /etc/systemd/network
10-lan0.link
unicorn:~$ cat /etc/systemd/network/10-lan0.link
[Match]
MACAddress=18:60:24:77:5c:ec
Type=ether
[Link]
Name=lan0
It's the best (possibly the only) way to ensure you get consistent names.
The so-called "predictable" interface names are not actually predictable,
as you have learned.
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