diff --git a/offline_signing/download.sh b/offline_signing/download.sh
index d2f305b4aa..b4123fe8c2 100755
--- a/offline_signing/download.sh
+++ b/offline_signing/download.sh
@@ -3,18 +3,29 @@
 set -ex
 BOARD="$1"
 VERSION="$2"
-GS="gs://builds.release.core-os.net/stable/boards/$BOARD/$VERSION"
+GS="gs://builds.release.core-os.net/unsigned/boards/$BOARD/$VERSION"
 
 cd "${3:-.}"
 
+# The shim only exists for amd64 boards.
+[ "x${BOARD}" = xamd64-usr ] && shim=1 || shim=
+
 gsutil cp \
     "${GS}/coreos_production_image.vmlinuz" \
     "${GS}/coreos_production_image.vmlinuz.sig" \
+    "${GS}/coreos_production_image.grub" \
+    "${GS}/coreos_production_image.grub.sig" \
+    ${shim:+
+    "${GS}/coreos_production_image.shim"
+    "${GS}/coreos_production_image.shim.sig"
+    } \
     "${GS}/coreos_production_update.bin.bz2" \
     "${GS}/coreos_production_update.bin.bz2.sig" \
     "${GS}/coreos_production_update.zip" \
     "${GS}/coreos_production_update.zip.sig" ./
 
 gpg --verify "coreos_production_image.vmlinuz.sig"
+gpg --verify "coreos_production_image.grub.sig"
+[ -z "$shim" ] || gpg --verify "coreos_production_image.shim.sig"
 gpg --verify "coreos_production_update.bin.bz2.sig"
 gpg --verify "coreos_production_update.zip.sig"