Index: trunk/scripts/git-migration/git-migrate-fast.sh
===================================================================
--- trunk/scripts/git-migration/git-migrate-fast.sh	(revision 2575)
+++ trunk/scripts/git-migration/git-migrate-fast.sh	(revision 2576)
@@ -64,4 +64,40 @@
 popd
 
+mkdir packages.git
+pushd packages.git
+git init --bare
+(
+    echo 'commit refs/heads/prod'
+    echo 'mark :1'
+    echo 'committer Invirt Git Import <invirt@mit.edu> now'
+    echo 'data <<EOF'
+    echo 'Initial superrepo creation.'
+    echo 'EOF'
+    for r in $(ls ../packages); do
+	pushd "../packages/$r" &>/dev/null
+	commit="$(git rev-parse refs/heads/master)"
+	popd &>/dev/null
+
+	echo "M 160000 $commit ${r%.git}"
+    done
+
+    echo 'M 100644 inline .gitmodules'
+    echo 'data <<EOF'
+    for r in $(ls ../packages); do
+	r="${r%.git}"
+	printf '[submodule "%s"]\n' "$r"
+	printf '\tpath = %s\n' "$r"
+	printf '\turl = git://invirt.mit.edu/packages/%s.git\n' "$r"
+    done
+    echo 'EOF'
+
+    echo 'reset refs/heads/dev'
+    echo 'from :1'
+
+    echo 'reset HEAD'
+    echo 'from :1'
+) | git fast-import --date-format=now
+popd
+
 echo
 echo 'The Git migration was successful.'