8567: Add docker19 migration instructions to install guide.

[arvados.git] / sdk / python / arvados / commands / keepdocker.py

diff --git a/sdk/python/arvados/commands/keepdocker.py b/sdk/python/arvados/commands/keepdocker.py
index 5603ade4924342c926d62080cbe804411e0b7386..135edd4810b2205518363bcbb34c515459d9df02 100644 (file)
--- a/sdk/python/arvados/commands/keepdocker.py
+++ b/sdk/python/arvados/commands/keepdocker.py
@@ -356,7 +356,7 @@ def migrate19():
 
     2) Set ARVADOS_API_HOST and ARVADOS_API_TOKEN to the cluster you want to migrate.
 
-    3) Run arv-migrate-docker19
+    3) Run arv-migrate-docker19 from the Arvados Python SDK on the host (not in a container).
 
     This will query Arvados for v1 format Docker images.  For each image that
     does not already have a corresponding v2 format image (as indicated by a