add UPDATING note about genassym

diff --git a/docs/UPDATING b/docs/UPDATING
index 4a45e1e55ddaab1cf277d8a47f2a7784d5871720..7861a08a3a648ad5d7780a4312f7d703cc0c41e4 100644 (file)
--- a/docs/UPDATING
+++ b/docs/UPDATING
@@ -1,3 +1,7 @@
+20120402:
+       an installed genassym is required to build the kernel:
+       # make -C usr.bin/genassym install     
+
 20120328:
        The boot loader now defaults to 115200 baud rate to make booting over
        serial more pleasant. To install the new boot loader do