Le 13/12/2020 à 01:09, Ralph Ronnquist via Dng a écrit :
> On 13/12 00:40, Antony Stone wrote:
>>> If it worked for you previously then, a) there would have been rules
>>> for double renaming,
>> Please point me at where I should find these.
>>
>> I only know that /etc/udev/rules.d/70-persistent-net.rules was the
>> *only* file I needed to edit if I wanted to rearrange the naming of
>> the interfaces under Jessie or earlier.
> Well, the kernel modules makes the first naming, and assigns them as
> eth0, eth1, eth2. That happens before udev starts.
>
> The kernel refuses any attempt to name an interface to, say, eth0 if
> that name is taken.
>
> Those "facts" have been in effect since last millenium, so whatever
> happened for you before would have happened within the eclipse of
> those "facts".
>
>>> and b) any network management would have kicked
>>> in late enough to let name fiddling happen before bringing up the
>>> interfaces. As you know, one of the joys with parallel boot is the
>>> random effects of things happening in parallel.
>> I thought "parallel boot" was one of the evils that systemd was designed to
>> bring in. In what way does Devuan do "parallel boot"?
> afact 1) udev processes events (somewhat) in parallel, and 2) the
> post-pivot boot runs init scripts in as much parallelism as is allowed
> with respect to their declared dependencies. That latter thing is
> something newish (10 years?) but current default.
>
    Maybe Udev is parallelized, but the netlink is serialized by the kernel.

--        Didier