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Date: Thu, 16 Oct 2014 19:38:03 +0800
From: ChenQi <Qi.Chen@windriver.com>
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Subject: Re: [PATCH 1/1] systemd: fix runtime dependency
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On 10/16/2014 07:06 PM, Enrico Scholz wrote:
> Chen Qi <Qi.Chen-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org> writes:
>
>> Previously, if we set 'NO_RECOMMENDATIONS' to "1", we cannot reach login
>> in systemd systems.
> IMO, this is just a configuration issue and can be fixed much better in
> a higher level packagegroup recipe.  RRECOMMENDS for serial getty are
> fine; although a serial console is very common on embedded systems, it
> is not strictly necessary.
>

These serial-getty@.service is part of the systemd package. In our 
system, it's first removed from systemd package, then generated from a 
separate recipe.

That's just a configuration file which occupies almost no space in 
image. However, without it, you cannot use serial console in systemd system.

In sysvinit, the serial console configuration is in /etc/inittab.

I just can't see any advantage of not using serial-getty@.service.

>> This patch makes the following changes.
>> 1. Add util-linux-agetty as a runtime dependency.
>>     Otherwise, getty services in systemd cannot start correctly.
> afais, it would make more sense to move this dependency into
> systemd-serialgetty (and not systemd as in your patch). Or are there
> other units in systemd which call agetty?
>
>
> Enrico

getty@.service

util-linux-agetty is really a necessity, otherwise you just don't console.

//Chen Qi