Re: [arch-projects] [netctl][PATCH] Support dynamically appearing interfaces

On Fri, Feb 15, 2013 at 10:40 AM, Thomas Bächler wrote:

Am 14.02.2013 21:45, schrieb Jouke Witteveen:

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On Tue, Feb 12, 2013 at 1:40 PM, Ivan Shapovalov wrote:

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If a profile is WantedBy=multi-user.target, it breaks init sequence if its interface is not immediately available at runtime (e. g. a cell-phone or USB modem).

Does this work? Is there a reason not to make the device the default trigger?

That's an interesting question. You can always add a profile as a dependency to /etc/systemd/system/sys-subsystem-net-devices-FOO.device.wants/ and add BindsTo=sys-subsystem-net-devices-FOO.device so it goes down when the devices vanishes. This is actually pretty nice if you think about it.

But do we really want that? Some people may say that they only want their devices going up when they launch multi-user.target, but not when they launch rescue.target. It's a matter you should consider carefully.

Another option is to add everything to network.target.wants. Although that might be a better place, it doesn't really solve the initial problem. On the other hand: what is precisely the problem: the unit just times out and is not supposed to block anything.