Hi Simon, Thanks for the information. I'll try the method you mentioned. Thanks and regards, Robert <div class="gmail_quote"><div dir="ltr">Simon Fels <<a href="mailto:simon.fels@canonical.com">simon.fels@canonical.com</a>> 於 2016年11月30日週三 21:13 寫道： </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 30.11.2016 11:21, Robert Liu wrote: > Hi All, > > The default behavior of pressing power button is power off and I want to > change it to suspend. > > The configuration file /etc/systemd/logind.conf is in the core snap and > is read-only. > I found that there are at least the following methods: > 1. write my own logind.conf, bind mount it and restart > systemd-logind.service > 2. write my own inhibitor and use systemd-inhibit > However these two methods must be run at every boot. > > I am wondering if there is any other solutions? > Or we could include /etc/systemd/logind.conf in writable-paths? The plan is to have power management policy decisions covered by snapd so the actual system doesn't need to care about. We're still in the beginning of designing this but my rough feeling is that this would go into the policy decision as another variable which can be configured somewhere per device. What you still can do in the mean time is creating a custom systemd unit and placing it in /etc/systemd/system which does the bind mount and restarts logind. See <a href="https://git.launchpad.net/~snappy-hwe-team/snappy-hwe-snaps/+git/network-manager/tree/tests/image/create-image.sh" rel="noreferrer" class="gmail_msg" target="_blank">https://git.launchpad.net/~snappy-hwe-team/snappy-hwe-snaps/+git/network-manager/tree/tests/image/create-image.sh</a> for an example of how you can integrate this in an image build with ubuntu-image. But please keep in mind that this is a very hacky approach and would mean it can't be updated on a device once the image is released. regards, Simon -- Snapcraft mailing list <a href="mailto:Snapcraft@lists.snapcraft.io" class="gmail_msg" target="_blank">Snapcraft@lists.snapcraft.io</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/snapcraft" rel="noreferrer" class="gmail_msg" target="_blank">https://lists.ubuntu.com/mailman/listinfo/snapcraft</a> </blockquote></div>