modify defect: miss boot_root attr in legacy mode
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		| @@ -29,6 +29,7 @@ else | ||||
|     grep -v rootfs /proc/mounts > /etc/mtab | ||||
|     boot_device='' | ||||
|     if [ -f "/etc/systemconfig/systemconfig.conf" ];then | ||||
|         boot_root=`cat /etc/systemconfig/systemconfig.conf | grep ROOTDEV | awk '{print $3}'` | ||||
|         boot_device=`cat /etc/systemconfig/systemconfig.conf | grep BOOTDEV | awk '{print $3}'` | ||||
|     else | ||||
|         boot_root=`mount | grep -E ' on\s+/ type ' | awk '{print $1}'` | ||||
|   | ||||
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