add separate curthook script to bind mount /run

bin/subiquity-configure-run

@@ -0,0 +1,5 @@
+#!/bin/bash -eux
+
+# curtin should probably change to do this itself. But for now:
+
+mount --bind /run "$TARGET_MOUNT_POINT/run"

snapcraft.yaml

@@ -11,6 +11,8 @@ apps:
     command: usr/bin/subiquity-loadkeys
   subiquity-configure-apt:
     command: usr/bin/subiquity-configure-apt
+  subiquity-configure-run:
+    command: usr/bin/subiquity-configure-run
   console-conf:
     command: usr/bin/console-conf
   probert:

subiquity/models/subiquity.py

@@ -178,7 +178,10 @@ class SubiquityModel:
                 },
 
             'curthooks_commands': {
-                '000-configure-apt': [
+                '000-configure-run': [
+                    '/snap/bin/subiquity.subiquity-configure-run',
+                    ],
+                '001-configure-apt': [
                     '/snap/bin/subiquity.subiquity-configure-apt',
                     sys.executable, str(self.network.has_network).lower(),
                     ],