I have used this tutorial
to successfully bootload a 328 (using the internal clock) on a breadboard with previous versions of the ide. After upgrading to 1.6.0 I do not see the option to choose "ATmega328 on a breadboard (8 MHZ internal clock)" on the tools>board menu anymore. I made sure that the hardware configuration file still exists as described in the tutorial. Does anyone know if there is an alternate process with 1.6.0 to bootload as described in the tutorial using an uno as an isp?
I worked through a solution. I added the following:
##############################################################
atmega328bb.name=ATmega328 on a breadboard (8 MHz internal clock)
atmega328bb.upload.tool=avrdude
atmega328bb.upload.protocol=arduino
atmega328bb.upload.maximum_size=30720
atmega328bb.upload.speed=57600
atmega328bb.bootloader.tool=avrdude
atmega328bb.bootloader.low_fuses=0xE2
atmega328bb.bootloader.high_fuses=0xDA
atmega328bb.bootloader.extended_fuses=0x05
atmega328bb.bootloader.file=atmega/ATmegaBOOT_168_atmega328_pro_8MHz.hex
atmega328bb.bootloader.unlock_bits=0x3F
atmega328bb.bootloader.lock_bits=0x0F
atmega328bb.build.mcu=atmega328p
atmega328bb.build.f_cpu=8000000L
atmega328bb.build.core=arduino
atmega328bb.build.variant=standard
to Arduino> hardware> arduino> avr> boards.txt
I can bootload and upload sketches again
Well done for working out the solution and posting it.