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-rw-r--r--cloudinit/config/cc_growpart.py6
1 files changed, 5 insertions, 1 deletions
diff --git a/cloudinit/config/cc_growpart.py b/cloudinit/config/cc_growpart.py
index 089693e8..d2bc6e6c 100644
--- a/cloudinit/config/cc_growpart.py
+++ b/cloudinit/config/cc_growpart.py
@@ -252,9 +252,13 @@ def devent2dev(devent):
container = util.is_container()
# Ensure the path is a block device.
- if (dev == "/dev/root" and not os.path.exists(dev) and not container):
+ if (dev == "/dev/root" and not container):
dev = util.rootdev_from_cmdline(util.get_cmdline())
if dev is None:
+ if os.path.exists(dev):
+ # if /dev/root exists, but we failed to convert
+ # that to a "real" /dev/ path device, then return it.
+ return dev
raise ValueError("Unable to find device '/dev/root'")
return dev