[Buildroot] [DEPEND] Dependency failed for Serial Getty on ttyS0.

[Karoly Pados]

Hello,

The config I attached was without agetty, because I already tried enabling it without success (with
the same reasoning: I thought to myself "maybe buildroot has no getty if I don't enable agetty").
Unfortunately that didn't solve te problem, so my conclusion was missing agetty was the not the
cause of the problem, and I went back to my original config.

Based on what you say I do need agetty, but I am sure I also need something else, because even with
agetty, I got the same problem. Could you please advise what else could be missing?

Any help appreciated, 

Greetings,
Károly Pados

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March 13, 2017 6:28 PM, "Arnout Vandecappelle" <arnout at mind.be> wrote:

> On 13-03-17 12:13, Karoly Pados wrote:
> 
>> Hello!
>> 
>> I built a buildroot image, using systemd as the init system. The kernel is built using buildroot
>> too, using a custom kernel-.config that is known to work on same hardware when used outside of
>> buildroot.
>> 
>> Most of the booting process succeeds, but towards the end systemd repeatedly tries to stop and
>> start getty, then after a minute or two outputs:
>> [DEPEND] Dependency failed for Serial Getty on ttyS0.
>> 
>> Booting then continues with UTMP, but no login prompt is shown. Not on UART and neither on VGA.
>> I've found out that others who got this same phenomenon had to enable CONFIG_FHANDLE for the
>> kernel, but for me it is already enabled.
>> 
>> Steps I used:
>> - clone buildroot from git
>> - checkout 2017.02.x branch
>> - make menuconfig (enabled systemd, disabled busybox, added a whole lot of other stuff)
> 
> ^^^^^^^^^^^^^^^^
> When you do this, you'll see the following warning appear:
> 
> You may need to enable other packages to get a working system
> You better know what you're doing!
> 
> From a quick look through your .config, I see that you don't have a getty
> package enabled. Without getty, systemd can't start getty. So you need to enable
> the agetty package.
> 
> Also note that systemd isn't thoroughly tested in Buildroot, even if you do
> enable busybox. So it is possible that you may run into other issues. Starting a
> getty should work, however.
> 
> Regards,
> Arnout
> 
>> - make
>> - flashed/installed images from output/images/
>> 
>> Here is a link to my buildroot-config: http://pastebin.com/W8KnZccU
>> 
>> Any help is appreciated.
>> 
>> Greetings,
>> Karoly
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> 
> --
> Arnout Vandecappelle arnout at mind be
> Senior Embedded Software Architect +32-16-286500
> Essensium/Mind http://www.mind.be
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