diff --git a/confluent_osdeploy/ubuntu20.04/initramfs/custom-installation/post.sh b/confluent_osdeploy/ubuntu20.04/initramfs/custom-installation/post.sh
index 5bd43bc6..d9dc27b2 100755
--- a/confluent_osdeploy/ubuntu20.04/initramfs/custom-installation/post.sh
+++ b/confluent_osdeploy/ubuntu20.04/initramfs/custom-installation/post.sh
@@ -4,4 +4,5 @@ confluent_mgr=$(grep ^deploy_server $deploycfg|awk '{print $2}')
 confluent_profile=$(grep ^profile: $deploycfg|awk '{print $2}')
 export deploycfg confluent_mgr confluent_profile
 curl -f https://$confluent_mgr/confluent-public/os/$confluent_profile/scripts/post.sh > /tmp/post.sh
-. /tmp/post.sh
+bash /tmp/post.sh
+true
diff --git a/confluent_osdeploy/ubuntu22.04/initramfs/custom-installation/post.sh b/confluent_osdeploy/ubuntu22.04/initramfs/custom-installation/post.sh
index 5bd43bc6..d9dc27b2 100755
--- a/confluent_osdeploy/ubuntu22.04/initramfs/custom-installation/post.sh
+++ b/confluent_osdeploy/ubuntu22.04/initramfs/custom-installation/post.sh
@@ -4,4 +4,5 @@ confluent_mgr=$(grep ^deploy_server $deploycfg|awk '{print $2}')
 confluent_profile=$(grep ^profile: $deploycfg|awk '{print $2}')
 export deploycfg confluent_mgr confluent_profile
 curl -f https://$confluent_mgr/confluent-public/os/$confluent_profile/scripts/post.sh > /tmp/post.sh
-. /tmp/post.sh
+bash /tmp/post.sh
+true