From 96a4469835c68e0b9c448344777fbff077b514ea Mon Sep 17 00:00:00 2001
From: Dan Walsh <dwalsh@redhat.com>
Date: Tue, 21 Jul 2015 09:24:55 -0400
Subject: [PATCH] If a user hits this error it would be helpful to know
 tagstore name.

There are several bug reports on this error happening, and error is
not helpful unless you read the code.  Google brings up removing
the repositories.btrfs file.

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
---
 daemon/daemon.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/daemon/daemon.go b/daemon/daemon.go
index 987b3b69cb..4ee7f2757b 100644
--- a/daemon/daemon.go
+++ b/daemon/daemon.go
@@ -686,7 +686,7 @@ func NewDaemon(config *Config, registryService *registry.Service) (daemon *Daemo
 	}
 	repositories, err := graph.NewTagStore(filepath.Join(config.Root, "repositories-"+d.driver.String()), tagCfg)
 	if err != nil {
-		return nil, fmt.Errorf("Couldn't create Tag store: %s", err)
+		return nil, fmt.Errorf("Couldn't create Tag store %s: %s", "repositories-"+d.driver.String(), err)
 	}
 
 	d.netController, err = initNetworkController(config)