diff --git a/confluent_osdeploy/ubuntu22.04/initramfs/scripts/init-premount/confluent b/confluent_osdeploy/ubuntu22.04/initramfs/scripts/init-premount/confluent
index 03761f3a..8a7e3777 100755
--- a/confluent_osdeploy/ubuntu22.04/initramfs/scripts/init-premount/confluent
+++ b/confluent_osdeploy/ubuntu22.04/initramfs/scripts/init-premount/confluent
@@ -79,8 +79,12 @@ if [ ! -z "$cons" ]; then
 fi
 echo "Preparing to deploy $osprofile from $MGR"
 echo $osprofile > /custom-installation/confluent/osprofile
-echo URL=http://${MGR}/confluent-public/os/$osprofile/distribution/install.iso >> /conf/param.conf
-fcmdline="$(cat /custom-installation/confluent/cmdline.orig) url=http://${MGR}/confluent-public/os/$osprofile/distribution/install.iso"
+. /etc/os-release
+DIRECTISO=$(blkid -t TYPE=iso9660 |grep -Ei ' LABEL="Ubuntu-Server '$VERSION_ID)
+if [ -z "$DIRECTISO" ]; then
+    echo URL=http://${MGR}/confluent-public/os/$osprofile/distribution/install.iso >> /conf/param.conf
+    fcmdline="$(cat /custom-installation/confluent/cmdline.orig) url=http://${MGR}/confluent-public/os/$osprofile/distribution/install.iso"
+fi
 if [ ! -z "$cons" ]; then
     fcmdline="$fcmdline console=${cons#/dev/}"
 fi
diff --git a/confluent_server/confluent/auth.py b/confluent_server/confluent/auth.py
index 69219794..a1e296ba 100644
--- a/confluent_server/confluent/auth.py
+++ b/confluent_server/confluent/auth.py
@@ -58,7 +58,7 @@ _allowedbyrole = {
             '/nodes/',
             '/node*/media/uploads/',
             '/node*/inventory/firmware/updates/*',
-            '/node*/suppport/servicedata*',
+            '/node*/support/servicedata*',
             '/node*/attributes/expression',
             '/nodes/*/console/session*',
             '/nodes/*/shell/sessions*',
diff --git a/confluent_server/confluent/httpapi.py b/confluent_server/confluent/httpapi.py
index 2802d706..79079a5e 100644
--- a/confluent_server/confluent/httpapi.py
+++ b/confluent_server/confluent/httpapi.py
@@ -679,7 +679,11 @@ async def resourcehandler_backend(req, make_response):
     if req.content_length:
         reqbody = await req.read()
         reqtype = req.content_type
-    operation = opmap[req.method]
+    operation = opmap.get(req.method, None)
+    if not operation:
+        rsp = make_response(mimetype, 400, 'Bad Request')
+        await rsp.write(b'Unsupported method')
+        return rsp
     querydict = _get_query_dict(req, reqbody, reqtype)
     if operation != 'retrieve' and 'restexplorerop' in querydict:
         operation = querydict['restexplorerop']