--- nsaserefpolicy/policy/modules/kernel/storage.fc	2006-11-16 17:15:04.000000000 -0500
+++ serefpolicy-2.5.8/policy/modules/kernel/storage.fc	2007-03-08 08:42:37.000000000 -0500
@@ -42,7 +42,8 @@
 /dev/sjcd		-b	gen_context(system_u:object_r:removable_device_t,s0)
 /dev/sonycd		-b	gen_context(system_u:object_r:removable_device_t,s0)
 /dev/tape.*		-c	gen_context(system_u:object_r:tape_device_t,s0)
-/dev/ub[a-z]		-b	gen_context(system_u:object_r:removable_device_t,mls_systemhigh)
+/dev/tw[a-z][^/]+	-c	gen_context(system_u:object_r:fixed_disk_device_t,mls_systemhigh)
+/dev/ub[a-z][^/]+	-b	gen_context(system_u:object_r:removable_device_t,mls_systemhigh)
 /dev/ubd[^/]*		-b	gen_context(system_u:object_r:fixed_disk_device_t,mls_systemhigh)
 /dev/xvd[^/]*		-b	gen_context(system_u:object_r:fixed_disk_device_t,mls_systemhigh)