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-rw-r--r--mk/xen-vcpu-hotplug.rules2
1 files changed, 1 insertions, 1 deletions
diff --git a/mk/xen-vcpu-hotplug.rules b/mk/xen-vcpu-hotplug.rules
index ecb200e..a28f895 100644
--- a/mk/xen-vcpu-hotplug.rules
+++ b/mk/xen-vcpu-hotplug.rules
@@ -1 +1 @@
-ACTION=="add", SUBSYSTEM=="cpu", RUN+="/bin/sh -c '[ ! -e /sys$devpath/online ] || echo 1 > /sys$devpath/online'"
+ACTION=="add", SUBSYSTEM=="cpu", RUN+="/bin/sh -c '( ! /usr/bin/xenstore-exists unique-domain-id 2>/dev/null ) || [ ! -e /sys$devpath/online ] || echo 1 > /sys$devpath/online'"