Error in IRIS Mote -solved

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If you get any error like when you are installing blink program on iris
avrdude: safemode: efuse changed! Was ff, and is now f7
Would you like this fuse to be changed back? [y/n] y

solution:

vi /opt/tinyos-main/support/make/iris.target

add in this :
ifeq ($(PROGRAMMER),avrdude)
PROGRAMMER_PART ?= -pm1281 -U efuse:w:0xff:m
endif

afterwards:

ifeq ($(PROGRAMMER),avrdude)
PROGRAMMER_PART ?= -pm1281 -U efuse:w:0xf7:m
#PROGRAMMER_PART ?= -pm1281 -U efuse:w:0xff:m
endif 

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