Franz Pletz 16d25f4fa6 Check if /proc/sys/kernel/hotplug exists before writing ...

If a kernel without CONFIG_UEVENT_HELPER set is used with NixOS, the file
/proc/sys/kernel/hotplug does not exist. Before writing to it to disable
this deprecated mechanism, we have to ensure it actually exists because
otherwise the activation script will fail.

2015-04-06 09:23:58 +02:00

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