Designing a new init: low level communication

[a-aa]

Sven Mueller wrote:

>Erich Schubert wrote on 29/08/2005 13:53:
>  
>
>>>I think we resolve a lot of problem if we make a fs writable from the
>>>beginning. I think it can be a ram fs (i.e. in /boot/init) that
>>>      
>>>
>>I've thought about that, and IIRC gentoo uses something alike.
>>    
>>
>
>True, they mount a 1MB "ramdisk" (tmpfs) on /mnt/.init.d
>BTW: Though gentoo uses dependencies, they don't (yet) start multiple
>services in parallel.
>  
>
Not per default, but they can.
RC_PARALLEL_STARTUP="no" in /etc/conf.d/rc

>  
>
>>Still I'd prefer to not need that.
>>    
>>
>
>If it can be avoided, it might be nice to do so, but if the
>implementation get's a lot easier by using such a tmpfs area, it might
>still be a valid option.
>
>  
>
>>>An other point, I think we should forget runlevel. lilo and linux support
>>>      
>>>
>>Sure, I agree. I don't have classic runlevels any more for a long time.
>>I have two runlevels - "full" and "suspend", and switch these before
>>and after suspend.
>>    
>>
>
>To each his own. I would not forget about "runlevels" (I currently don't
>have a better name for it, perhaps "states" or "(service) collections"?)
>alltogether, but fully supporting _names_ for them instead of _numbers_
>would sure be nice (I wouldn't want to enforce them though). Allowing
>aliases for them would be even nicer (like 'runlevel' FullNetworking
>having an alias "3", so that 'telinit 3' and 'telinit FullNetworking'
>would be equivalent).
>
>  
>
>>But it would be nice (but surely handleable via an external app) to
>>support classic runlevels via some mapping - e.g. 1=single 2=full
>>5=suspend
>>    
>>
>
>Right. Should have read all before answering. ;-)
>
>cu,
>sven
>  
>
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>