5882 Temporary pool names
Reviewed by: Matt Ahrens <matt@delphix.com>
Reviewed by: Igor Kozhukhov <igor@dilos.org>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>

*** 642,658 ****
--- 642,669 ----
                                      ZPROP_MAX_COMMENT);
                                  (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
                                  goto error;
                          }
                          break;
+ 
                  case ZPOOL_PROP_READONLY:
                          if (!flags.import) {
                                  zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
                                      "property '%s' can only be set at "
                                      "import time"), propname);
                                  (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
                                  goto error;
+                         }
+                         break;
+ 
+                 case ZPOOL_PROP_TNAME:
+                         if (!flags.create) {
+                                 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
+                                     "property '%s' can only be set at "
+                                     "creation time"), propname);
+                                 (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
+                                 goto error;
                          }
                          break;
  
                  default:
                          zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,