[root@localhost avrdude-gcc8]# export PATH="/home/daddesio/gcc/gcc-8.3.1/prefix/bin:$PATH" [root@localhost avrdude-gcc8]# export LD_LIBRARY_PATH="/home/daddesio/gcc/gcc-8.3.1/prefix/lib64" [root@localhost avrdude-gcc8]# gcc --version gcc (GCC) 8.3.1 20190223 Copyright (C) 2018 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. [root@localhost avrdude-gcc8]# which avrdude /home/daddesio/avrdude-gcc8/prefix/bin/avrdude [root@localhost avrdude-gcc8]# avrdude -c buspirate -P /dev/ttyUSB0 -p m328p -U lfuse:r:lfuse.bin:r Attempting to initiate BusPirate binary mode... avrdude: Paged flash write enabled. avrdude: AVR device initialized and ready to accept instructions Reading | ################################################## | 100% 0.08s avrdude: Device signature = 0x1e950f (probably m328p) avrdude: reading lfuse memory: Reading | ################################################## | 100% 0.03s avrdude: writing output file "lfuse.bin" avrdude: safemode: Fuses OK (E:FD, H:D9, L:FF) avrdude done. Thank you. [root@localhost avrdude-gcc8]#