[Nix-dev] systemd in initrd

[Florian Friesdorf]

Has been a while, but +1 to all these points.

Alexander Zubkov <green at msu.ru> writes:
>  > Being simple is for year '90
> It is hard to argue so strong opinion. :) By simple, I do not mean 
> primitive. I mean using enough and appropriate tools to do the work, 
> without extra unneeded stuff.
>
> Initrd is not a generic system in my mind. It is just sequence of 
> actions to mount root.
> 1) If this sequence needs to be sorted in some way - I think hand 
> sorting is enough. More to say, any automatic "sorting application" will 
> limit the use cases by those only supported by this "sorting 
> application" logic.
> 2) There is no need to manage services or processes in initrd, only 
> start it. So any management system is overkill here.
> 3) Do we need all the increasing capabilities of systemd in the initrd?
> 4) It should be examined if size of initrd will not grow too much. May 
> be not an issue at all.
>
>
> On 2014-08-21 19:43, Luca Bruno wrote:
>> On 21/08/2014 17:35, Alexander Zubkov wrote:
>>> etc, etc, ... and viola - we will not be needing root filesystem at all. :)
>>>
>>> My option is keep initrd as simple as possible and not to bound it to
>>> particular init system. Because one day may be someone will make another
>>> option for init system in nixos.
>>>
>>> Also, if somebody cares, I'm not a big fan of systemd, but nixos
>>> interesting aspects and some sort of abstraction layer from systemd
>>> allows this compromise. So please no more systemd. :)
>> Nixos is already very tied to systemd. I'm not a fan of systemd either,
>> however think of using systemd just for the dependencies part at initrd
>> time. Being simple is for year '90, if you want it simple is perhaps
>> because you don't have certain needs.
>>
>> I agree, nixos could have generic option for an init system, but it does
>> not apply to this discussion. If there will be a generic interface to
>> any init systems in nixos, then the initrd will be ported to it.
>>
>> If you have a more technical reason about not having systemd in initrd,
>> please tell me.
>>
>> Best regards,
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>
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Florian Friesdorf <flo at chaoflow.net>
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