diff -Nru /tmp/MgLk5UmUPS/ubuntu-keyring-2008.03.03/debian/changelog /tmp/Qk0up2YOAg/ubuntu-keyring-2008.03.04/debian/changelog
--- /tmp/MgLk5UmUPS/ubuntu-keyring-2008.03.03/debian/changelog	2008-03-03 07:17:02.000000000 -0800
+++ /tmp/Qk0up2YOAg/ubuntu-keyring-2008.03.04/debian/changelog	2008-03-03 16:48:55.000000000 -0800
@@ -1,3 +1,10 @@
+ubuntu-keyring (2008.03.04) hardy; urgency=low
+
+  * Ensure /var/lib/apt/keyrings exists before trying to copy to it (LP:
+    #198110)
+
+ -- Andrew Pollock <apollock@debian.org>  Mon, 03 Mar 2008 16:47:25 -0800
+
 ubuntu-keyring (2008.03.03) hardy; urgency=low
 
   * put ubuntu-master-keyring.gpg into /var/lib/apt/keyrings to
diff -Nru /tmp/MgLk5UmUPS/ubuntu-keyring-2008.03.03/debian/postinst /tmp/Qk0up2YOAg/ubuntu-keyring-2008.03.04/debian/postinst
--- /tmp/MgLk5UmUPS/ubuntu-keyring-2008.03.03/debian/postinst	2008-03-03 07:17:02.000000000 -0800
+++ /tmp/Qk0up2YOAg/ubuntu-keyring-2008.03.04/debian/postinst	2008-03-03 16:51:02.000000000 -0800
@@ -7,7 +7,13 @@
 
 # the keyring in /var that gets fetched by apt-key net-update
 # if it does not yet exist, copy it to avoid uneeded net copy
-KEYRING="/var/lib/apt/keyrings/ubuntu-archive-keyring.gpg"
+KEYRINGDIR="/var/lib/apt/keyrings"
+KEYRING="${KEYRINGDIR}/ubuntu-archive-keyring.gpg"
+
+if ! test -d $KEYRINGDIR; then
+     mkdir -m 755 -p $KEYRINGDIR
+fi
+
 if ! test -f $KEYRING; then
      cp /usr/share/keyrings/ubuntu-archive-keyring.gpg $KEYRING
      touch $KEYRING