Added support detect root dev by cmdline by UUID.

pym/cl_fill.py

@@ -487,10 +487,25 @@ class fillVars(glob_attr):
     def get_os_root_dev(self):
         """корневой раздел файловой системы"""
         for record in open('/proc/cmdline','rb').readlines():
-            re_res=re.search('^root=(\/dev\/[a-z]+[0-9]).*',record.strip())
+            re_res=re.search('(?:^|\s)root=(\S+)(\s|$)',record.strip())
             if re_res:
-                return re_res.group(1)
+                rootparam=re_res.group(1)
-            else:
+                # check root for /dev/sd view
+                if re.match("^\/dev\/[a-z]+[0-9]$",rootparam):
+                    return rootparam
+                # check root set by uuid
+                uuidpath = '/dev/disk/by-uuid'
+                if os.access(uuidpath,os.R_OK):
+                    uuidDevs = filter(os.path.islink,
+                                  map(lambda x: os.path.join(uuidpath,x),
+                                      os.listdir(uuidpath)))
+                    mapUuidDev = dict(map(lambda x:(os.path.basename(x),
+                                    os.path.normpath(os.path.join(uuidpath,
+                                    os.readlink(x)))), uuidDevs))
+                if re.match("^UUID=.*$",rootparam):
+                    uuid = rootparam[5:]
+                    if uuid in mapUuidDev:
+                        return mapUuidDev[uuid]
             mountLunes = self._runos("mount")
             if not mountLunes:
                 return ""