From: Felix Lechner via "Development of GNU Guix and the GNU System distribution." <guix-devel@gnu.org>
To: Guix Devel <guix-devel@gnu.org>
Subject: Re: Defaulting to MAC-based names for network interfaces
Date: Wed, 17 May 2023 18:14:43 -0700 [thread overview]
Message-ID: <CAFHYt54waVh_RChxk4PXJAQw0T7+gKxZAaLjOADinMF7XFdEjw@mail.gmail.com> (raw)
In-Reply-To: <ZGJF6h6yRKo7_CNq@3900XT>
Hi Efraim,
On Mon, May 15, 2023 at 7:47 AM Efraim Flashner <efraim@flashner.co.il> wrote:
>
> > the standard command to test udev setups: [2]
> >
> > $ udevadm --debug test /sys/class/net/*
> >
> > did not find the script installed via the 'udev-service-type'.
>
> I was curious about this, since I've been using a udev rule for quite a
> while to setup zram swap. I definitely have my zram swap enabled and
> working, but 'udevadm --debug test /dev/zram0' didn't find any rule for
> zram.
Your zram probably works because your udev rule does not need a
working udevadm. I believe that network interfaces actually use
udevadm to determine their name. Either way, my latest amendments to
Bug#63508 (v2) will fix your udevadm. [1]
In a concession to Liliana's opposition, I retitled the bug to
sidestep the question of the MAC-based names as a default setting. My
position has not changed but that should probably be a separate
discussion.
Personally, I hope to win everyone's hearts with this: My fix allows
folks to experiment with MAC-based names so everyone can see their
great utility. Anyone interested, please put this in your system
services:
(udev-rules-service 'net-name-mac
(udev-rule
"79-net-name-mac.rules"
"
SUBSYSTEM==\"net\", ACTION==\"add\", NAME=\"$env{ID_NET_NAME_MAC}\"
")))
Sorry I cannot offer substitutes. The change rebuilds more than it should.
As a side note, I looked into upgrading to eudev 3.2.12, which was
tagged yesterday, but that will bring more pain because upstream
hardcoded the path to the hwdb. [2] I have a partial fix, although
some consuming packages like upower aren't working yet.
Kind regards
Felix
[1] https://issues.guix.gnu.org/63508#12
[2] https://github.com/eudev-project/eudev/blob/2703baf55615b7554fb67c4f1c241f057f8c0a79/src/udev/udevadm-hwdb.c#L588
prev parent reply other threads:[~2023-05-18 1:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-14 21:52 Defaulting to MAC-based names for network interfaces Felix Lechner via Development of GNU Guix and the GNU System distribution.
2023-05-15 14:47 ` Efraim Flashner
2023-05-18 1:14 ` Felix Lechner via Development of GNU Guix and the GNU System distribution. [this message]
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