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From 9b33863a2cfa31bbe57bab685776b64731f528f1 Mon Sep 17 00:00:00 2001
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From: Lukas Nykryn <lnykryn@redhat.com>
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Date: Wed, 30 Mar 2016 13:49:50 +0200
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Subject: [PATCH] core: improve error message when starting template without
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 instance
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Cherry-picked from: 5d512d54429aa9d2f4a0ca215bb2e982db720d6b
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Resolves: #1142369
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---
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 src/core/manager.c | 6 +++++-
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 1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/src/core/manager.c b/src/core/manager.c
Pablo Greco 48fc63
index bde17ce0be..bb5050303c 100644
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--- a/src/core/manager.c
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+++ b/src/core/manager.c
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@@ -1328,8 +1328,12 @@ int manager_load_unit_prepare(
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         t = unit_name_to_type(name);
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-        if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE))
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+        if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) {
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+                if (unit_name_is_valid(name, UNIT_NAME_TEMPLATE))
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+                        return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is missing the instance name.", name);
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+
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                 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name);
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+        }
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         ret = manager_get_unit(m, name);
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         if (ret) {