[systemd-devel] RFC: removing initctl support

[Michael Biebl]

Hi,

yes, in Debian we'll need /dev/initctl support for at least another
release cycle so users can switch between the init system and safely
reboot (in both directions).
If it's not too much of a nuisance, it would be great if it could
still be provided a bit longer upstream, otherwise we'll have to carry
it as a downstream patch.
It don't really think the code is bit-rotting, it's simply mature code
which does what it needs to do.
That said, since we will need in Debian anyway, we can just as well
maintain it upstream.

Lennart, do you have any open issues regarding /dev/initctl? We
(myself and I guess Martin as well), can have a look then.

In summary: Please consider keeping the code and if you need someone
to look after it, then I volunteer.

Michael

2015-09-22 13:49 GMT+02:00 Zbigniew Jędrzejewski-Szmek <zbyszek at in.waw.pl>:
> On Tue, Sep 22, 2015 at 02:31:25AM +0200, Lennart Poettering wrote:
>> Heya!
>>
>> Since a long time systemd has been shipping with two-way compat
>> support for /dev/initctl, and I am tempted to remove it. Before I do
>> so, I'd like some input on the relevance of this interface:
> I'd guess that debian might care, as they are trying to keep
> bidirectional compat. Apart from that, meh, probably nobody.
> Let's see what they say.
>
> Zbyszek
>
>> a) there's support in systemctl to reboot the system by sending the
>>    right bytes to /dev/initctl as fallback, so that you can reboot a
>>    sysvinit system with "systemctl reboot".
>>
>> b) There's a mini-daemon "systemd-initctl.service" that is
>>    fifo-activated on /dev/initctl, and forwards reboot requests from
>>    old sysvinit clients to systemd.



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