remove error log during iso installation. (#68)

- log first mount failures attempt as debug instead error log.
 - When attended install is set, log attended installation is running.

Signed-off-by: Unniche, BasavarajX <basavarajx.unniche@intel.com>

Author: bunnichx

toolkit/resources/imageconfigs/additionalfiles/iso_initrd/root/runliveinstaller

@@ -47,7 +47,7 @@ function retry {
     while [ $retry -lt $limit ]
     do
         eval "$@" && break
-        echo "$@" failed. Retrying...
+        echo "$@" Retrying...
         ((retry++))
         sleep $sleep_seconds
     done
@@ -83,7 +83,7 @@ else
     # the mount will fail and the retry loop would retry the mount repeatedly. This
     # is handled by the 'or' in the retry loop which will grep for the mount point and
     # break out of the loop if it is found.
-    retry "{ mount -L $LABEL -o ro $ISO_ROOT || grep -qs $ISO_ROOT /proc/mounts ; }"
+    retry "{ mount -L $LABEL -o ro $ISO_ROOT 2>/dev/null || grep -qs $ISO_ROOT /proc/mounts ; }"
 fi
 
 # If we are running unattended (i.e., have $UNATTENDED_CONFIG_FILE), we need to make sure that we only run once.

toolkit/tools/liveinstaller/liveinstaller.go

@@ -114,7 +114,7 @@ func installerFactory(forceAttended bool, configFile, templateConfigFile string)
 		unattendedExists, _ := file.PathExists(configFile)
 
 		if !unattendedExists {
-			logger.Log.Infof("Config file (%s) does not exist, using attended installation", configFile)
+			logger.Log.Debugf("Config file (%s) does not exist, using attended installation", configFile)
 			isAttended = true
 		}
 	}
@@ -124,6 +124,7 @@ func installerFactory(forceAttended bool, configFile, templateConfigFile string)
 		if !templateExists {
 			logger.Log.Panicf("Attended installation requires a template config file. Specified template (%s) does not exist.", templateConfigFile)
 		}
+		logger.Log.Info("attended_config exists, using attended installation")
 	}
 
 	if isAttended {