1 files changed, 16 insertions, 0 deletions
diff --git a/pcr/spl-dkms/spl.install b/pcr/spl-dkms/spl.install
new file mode 100644
index 000000000..1438151a8
--- /dev/null
+++ b/pcr/spl-dkms/spl.install
@@ -0,0 +1,16 @@
+post_install() {
+    check_hostid
+}
+
+check_hostid() {
+    # Check /etc/hostid to see if it set to the sentinel value, see
+    # https://wiki.archlinux.org/index.php/ZFS for more information.
+    HOSTID=$(hostid)
+    if [ "0x$HOSTID" == "0xffffffff" ]; then
+        # Generate a new hostid
+        : >/etc/hostid
+        HOSTID=$(hostid)
+        # hostid is 4 byte little endian
+        printf $(echo -n $HOSTID | sed 's/\(..\)\(..\)\(..\)\(..\)/\\x\4\\x\3\\x\2\\x\1/') >/etc/hostid
+    fi
+}