diff --git a/acceptance/instance_ssh.go b/acceptance/instance_ssh.go
index 0a9eca385..64f5743ec 100644
--- a/acceptance/instance_ssh.go
+++ b/acceptance/instance_ssh.go
@@ -55,6 +55,8 @@ Host docker-vm
 	Hostname %s
 	User %s
 	StrictHostKeyChecking no
+	UserKnownHostsFile /dev/null
+	GlobalKnownHostsFile /dev/null
     IdentityFile %s
 `
 	sshConfig := fmt.Sprintf(
diff --git a/acceptance/lifecycle_test.go b/acceptance/lifecycle_test.go
index d7f6f7a5f..b1115eb8e 100644
--- a/acceptance/lifecycle_test.go
+++ b/acceptance/lifecycle_test.go
@@ -145,7 +145,8 @@ var _ = Describe("bosh", func() {
 	}
 
 	var shutdownAgent = func() {
-		_, _, exitCode, err := instanceSSH.RunCommandWithSudo("sv stop agent")
+		// noble stemcells supervise the agent with systemd; earlier ones used runit ('sv stop agent')
+		_, _, exitCode, err := instanceSSH.RunCommandWithSudo("systemctl stop agent")
 		Expect(err).ToNot(HaveOccurred())
 		Expect(exitCode).To(Equal(0))
 	}
diff --git a/ci/README.md b/ci/README.md
deleted file mode 100644
index 60ee3c54e..000000000
--- a/ci/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Steps for Configuring the Pipeline
-
-Follow the steps in [BOSH: Configuring Concourse Pipelines](https://github.com/cloudfoundry/bosh/blob/develop/docs/configuring_concourse_pipelines.md), using "bosh-init" as the value for `PROJECT_NAME`.
diff --git a/ci/docker/README.md b/ci/docker/README.md
deleted file mode 100644
index 478b3089f..000000000
--- a/ci/docker/README.md
+++ /dev/null
@@ -1,14 +0,0 @@
-# Building new docker image
-
-```
-vagrant up
-vagrant ssh
-```
-
-On vagrant VM:
-
-```
-cd /opt/bosh
-docker login ...
-sudo ./build_docker_image.sh
-```
\ No newline at end of file
diff --git a/docs/test.md b/docs/test.md
index 5384bc3a1..ed9448e6b 100644
--- a/docs/test.md
+++ b/docs/test.md
@@ -19,7 +19,7 @@ build on the pipeline's `test-acceptance` job to pick up its image, CPI release
 and stemcell, and override only the source under test:
 
 ```bash
-./fly -t bosh execute -p \
+fly -t bosh execute -p \
   -c ci/tasks/test-acceptance.yml \
   --inputs-from bosh-cli/test-acceptance \
   --image docker-cpi-image \