diff --git a/confluent_osdeploy/ubuntu20.04/initramfs/custom-installation/hooks/casper-bottom.sh b/confluent_osdeploy/ubuntu20.04/initramfs/custom-installation/hooks/casper-bottom.sh
index 9c067ebc..a08a6b3d 100755
--- a/confluent_osdeploy/ubuntu20.04/initramfs/custom-installation/hooks/casper-bottom.sh
+++ b/confluent_osdeploy/ubuntu20.04/initramfs/custom-installation/hooks/casper-bottom.sh
@@ -9,19 +9,35 @@ MGR=$(grep ^EXTMGRINFO: /custom-installation/confluent/confluent.info |awk -F'|'
 MGR=$(grep ^MANAGER: /custom-installation/confluent/confluent.info|head -n 1| awk '{print $2}')
 MGTIFACE=$(grep $MGR /custom-installation/confluent/confluent.info | grep ^EXTMGRINFO: | head -n 1 | awk -F'|' '{print $2}')
 oum=$(umask)
-umask 077
-chroot . custom-installation/confluent/bin/clortho $NODENAME $MGR > /root/custom-installation/confluent/confluent.apikey
-MGR=[$MGR]
 deploycfg=/root/custom-installation/confluent/confluent.deploycfg
+netcfgfile=$deploycfg
+umask 077
+if [ -e /tmp/cnflnthmackeytmp ]; then
+    netcfgfile=/tmp/idnttmp
+    hmackeyfile=/tmp/cnflnthmackeytmp
+    #echo -n $(grep ^apitoken: /tmp/identdata/cnflnt.yml|awk '{print $2}') > $hmackeyfile
+    passfile=/tmp/cnflnttmppassfile
+    passcrypt=/tmp/cnflntcryptfile
+    hmacfile=/tmp/cnflnthmacfile
+    chroot . ln -sf /custom-installation/confluent/bin/clortho custom-installation/confluent/bin/genpasshmac
+    cp $hmackeyfile tmp
+    chroot . custom-installation/confluent/bin/genpasshmac $passfile $passcrypt $hmacfile $hmackeyfile
+    chroot . curl -f -H "CONFLUENT_NODENAME: $NODENAME" -H "CONFLUENT_CRYPTHMAC: $(cat /root/$hmacfile)" -d @/tmp/cnflntcryptfile  https://$MGR/confluent-api/self/registerapikey
+    cp /root/$passfile /root/custom-installation/confluent/confluent.apikey
+    DEVICE=$(cat /tmp/autodetectnic)
+else
+    chroot . custom-installation/confluent/bin/clortho $NODENAME $MGR > /root/custom-installation/confluent/confluent.apikey
+    MGR=[$MGR]
+    nic=$(grep ^MANAGER /custom-installation/confluent/confluent.info|grep fe80::|sed -e s/.*%//|head -n 1)
+    nic=$(ip link |grep ^$nic:|awk '{print $2}')
+    DEVICE=${nic%:}
+fi
 if [ -z "$MGTIFACE" ]; then
 	chroot . usr/bin/curl -f -H "CONFLUENT_NODENAME: $NODENAME" -H "CONFLUENT_APIKEY: $(cat /root//custom-installation/confluent/confluent.apikey)" https://${MGR}/confluent-api/self/deploycfg > $deploycfg
 else
 	chroot . usr/bin/curl -f -H "CONFLUENT_MGTIFACE: $MGTIFACE" -H "CONFLUENT_NODENAME: $NODENAME" -H "CONFLUENT_APIKEY: $(cat /root//custom-installation/confluent/confluent.apikey)" https://${MGR}/confluent-api/self/deploycfg > $deploycfg
 fi
 umask $oum
-nic=$(grep ^MANAGER /custom-installation/confluent/confluent.info|grep fe80::|sed -e s/.*%//|head -n 1)
-nic=$(ip link |grep ^$nic:|awk '{print $2}')
-DEVICE=${nic%:}
 ipv4m=$(grep ^ipv4_method $deploycfg|awk '{print$2}')
 . /scripts/functions
 if [ "$ipv4m" = "dhcp" ]; then
diff --git a/confluent_osdeploy/ubuntu20.04/initramfs/scripts/init-premount/confluent b/confluent_osdeploy/ubuntu20.04/initramfs/scripts/init-premount/confluent
index c4a6b204..ef09db40 100755
--- a/confluent_osdeploy/ubuntu20.04/initramfs/scripts/init-premount/confluent
+++ b/confluent_osdeploy/ubuntu20.04/initramfs/scripts/init-premount/confluent
@@ -6,7 +6,7 @@ mkdir -p /custom-installation
 cp -a /opt/confluent /custom-installation
 touch /custom-installation/confluent/confluent.info
 TRIES=5
-while [ ! -e /dev/disk ] && [ $TRIES -gt 0 ]; do
+while [ ! -e /dev/disk/by-label ] && [ $TRIES -gt 0 ]; do
     sleep 2
     TRIES=$((TRIES - 1))
 done
diff --git a/confluent_osdeploy/ubuntu22.04/initramfs/scripts/init-premount/confluent b/confluent_osdeploy/ubuntu22.04/initramfs/scripts/init-premount/confluent
index 1d47bcc0..03761f3a 100755
--- a/confluent_osdeploy/ubuntu22.04/initramfs/scripts/init-premount/confluent
+++ b/confluent_osdeploy/ubuntu22.04/initramfs/scripts/init-premount/confluent
@@ -6,7 +6,7 @@ mkdir -p /custom-installation
 cp -a /opt/confluent /custom-installation
 touch /custom-installation/confluent/confluent.info
 TRIES=5
-while [ ! -e /dev/disk ] && [ $TRIES -gt 0 ]; do
+while [ ! -e /dev/disk/by-label ] && [ $TRIES -gt 0 ]; do
     sleep 2
     TRIES=$((TRIES - 1))
 done