diff --git a/.github/buildomat/jobs/build-and-test.sh b/.github/buildomat/jobs/build-and-test.sh
index 727914a3e2b..50dc04a1f41 100644
--- a/.github/buildomat/jobs/build-and-test.sh
+++ b/.github/buildomat/jobs/build-and-test.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 #:
-#: name = "helios / build-and-test"
+#: name = "build-and-test (helios)"
 #: variety = "basic"
 #: target = "helios-latest"
 #: rust_toolchain = "nightly-2022-04-27"
@@ -29,7 +29,7 @@ mkdir $TEST_TMPDIR
 export PATH="$PATH:$PWD/out/cockroachdb/bin:$PWD/out/clickhouse"
 
 banner prerequisites
-ptime -m bash ./tools/install_prerequisites.sh -y
+ptime -m bash ./tools/install_builder_prerequisites.sh -y
 
 #
 # We build with:
@@ -51,12 +51,6 @@ export RUSTDOCFLAGS="-D warnings"
 export TMPDIR=$TEST_TMPDIR
 ptime -m cargo +'nightly-2022-04-27' build --locked --all-targets --verbose
 
-#
-# Check that building individual packages as when deploying Omicron succeeds
-#
-banner deploy-check
-ptime -m cargo run --bin omicron-package -- check
-
 #
 # NOTE: We're using using the same RUSTFLAGS and RUSTDOCFLAGS as above to avoid
 # having to rebuild here.
diff --git a/.github/buildomat/jobs/check-omicron-deployment.sh b/.github/buildomat/jobs/check-omicron-deployment.sh
new file mode 100644
index 00000000000..ea519cbcb16
--- /dev/null
+++ b/.github/buildomat/jobs/check-omicron-deployment.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+#:
+#: name = "check-omicron-deployment (helios)"
+#: variety = "basic"
+#: target = "helios-latest"
+#: rust_toolchain = "nightly-2022-04-27"
+#: output_rules = []
+#:
+
+set -o errexit
+set -o pipefail
+set -o xtrace
+
+cargo --version
+rustc --version
+
+#
+# Put "./cockroachdb/bin" and "./clickhouse" on the PATH for the test
+# suite.
+#
+export PATH="$PATH:$PWD/out/cockroachdb/bin:$PWD/out/clickhouse"
+
+banner prerequisites
+ptime -m bash ./tools/install_builder_prerequisites.sh -y
+
+#
+# Check that building individual packages as when deploying Omicron succeeds
+#
+banner deploy-check
+ptime -m cargo run --bin omicron-package -- check