On 7/13/20 7:03 PM, Simon Matter via CentOS-devel wrote: > Hi, > > First I suggest to move this thread over to centos list instead of > centos-devel. I think it's more appropriate there. Thank you. Got it. >> Hi, >> >> I've got a task to have a small number of laptops netboot Linux over >> WiFi. The kernel is loaded off the USB stick of cource, it's off topic >> for now. >> >> The WPA-supplicant daemon is started early by dracut off initrd. It >> works. Mostly. >> >> The problem is that upon shutdown systemd terminates all the processes >> FIRST and unmounts filesystems NEXT. >> >> Guess what? Upon termination, wpa-supplicant brings the wireless >> interface down and the system hangs being unable to unmount now-defunct >> NFSroot. > > What I'm wondering here is, do you see the hangs because of wpa_supplicant > was terminated and therefore also the wireless interface is down, or do > you see the hangs because networking is already completely down. > > If it is because wpa_supplicant gets terminated, then maybe it would be > possible to terminate wpa_supplicant in a way that it lets the wireless > interface still up and functional at least for a certain amount of time. > > I don't know wpa_supplicant good enough but I think maybe it is not always > needed to be alive for the wireless interface to work. > > Otherwise, I guess it's more a question for the systemd developers than > for CentOS or Linux in general. > > Regards, > Simon > > _______________________________________________ > CentOS-devel mailing list > CentOS-devel at centos.org > https://lists.centos.org/mailman/listinfo/centos-devel >