[systemd-devel] [PATCH] nspawn: be verbose about interface names

[Umut Tezduyar Lindskog]

Allowed interface name is relatively small. Lets not make
users go in to the source code to figure out what happened.

--machine=debian-tree conflicts with
--machine=debian-tree2

ex: Failed to add new veth \
         interfaces (host0, vb-debian-tree): File exists
---
 src/nspawn/nspawn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 5009363..646edea 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -2627,7 +2627,7 @@ static int setup_veth(pid_t pid, char iface_name[IFNAMSIZ], int *ifi) {
 
         r = sd_rtnl_call(rtnl, m, 0, NULL);
         if (r < 0)
-                return log_error_errno(r, "Failed to add new veth interfaces: %m");
+                return log_error_errno(r, "Failed to add new veth interfaces (host0, %s): %m", iface_name);
 
         i = (int) if_nametoindex(iface_name);
         if (i <= 0)
-- 
2.1.4