2741 format shouldn't allow write SMI label to disk with EFI partition

@@ -1561,24 +1561,28 @@
                 /* Ask user what label to use */
                 fmt_print("[0] SMI Label\n");
                 fmt_print("[1] EFI Label\n");
                 ioparam.io_bounds.lower = 0;
                 ioparam.io_bounds.upper = 1;
-                if (cur_label == L_TYPE_SOLARIS)
-                        deflt = 0;
+                if ((cur_label == L_TYPE_SOLARIS) &&
+                    (cur_disk->fdisk_part.systid != EFI_PMBR))
+                        deflt = L_TYPE_SOLARIS;
                 else
-                        deflt = 1;
+                        deflt = L_TYPE_EFI;
                 defltptr = &deflt;
                 choice = input(FIO_INT, "Specify Label type", ':',
                     &ioparam, defltptr, DATA_INPUT);
-                if ((choice == 0) && (cur_label == L_TYPE_SOLARIS)) {
+                if ((choice == L_TYPE_SOLARIS) &&
+                    (cur_label == L_TYPE_SOLARIS) &&
+                    (cur_disk->fdisk_part.systid != EFI_PMBR)) {
                         goto expert_end;
-                } else if ((choice == 1) && (cur_label == L_TYPE_EFI)) {
+                } else if ((choice == L_TYPE_EFI) &&
+                    (cur_label == L_TYPE_EFI)) {
                         goto expert_end;
                 }
                 switch (choice) {
-                case 0:
+                case L_TYPE_SOLARIS:
                 /*
                  * EFI label to SMI label
                  */
                 if (cur_dtype->capacity > INFINITY) {
                         fmt_print("Warning: SMI labels only support up to "

@@ -1646,22 +1650,24 @@
                         err_print("Label failed.\n");
                         return (-1);
                 }
 
 
-                case 1:
+                case L_TYPE_EFI:
                 /*
                  * SMI label to EFI label
                  */
 
-
-                fmt_print("Warning: This disk has an SMI label. Changing to "
-                    "EFI label will erase all\ncurrent partitions.\n");
-
+                if ((cur_disk->fdisk_part.systid == SUNIXOS) ||
+                    (cur_disk->fdisk_part.systid == SUNIXOS2)) {
+                        fmt_print("Warning: This disk has an SMI label. "
+                            "Changing to EFI label will erase all\ncurrent "
+                            "partitions.\n");
                 if (check("Continue")) {
                         return (-1);
                 }
+                }
 
                 if (get_disk_info(cur_file, &efinfo) != 0) {
                         return (-1);
                 }
                 (void) memset((char *)&label, 0, sizeof (struct dk_label));