Problem in Uploading a Bootloader to Atmega8A I am getting an error while Uploading the Bootloader to Atmega8A
I am selecting..

  Board -&gt; Arduino NG and Older
  Processor -&gt; Atmega8A
  Programmer -&gt; USBasp


and sketch code is ArduinoISP, After selecting port then I do "Burn Bootloader"

But getting an error of...

   "efuse" memory type not defined for part "ATmega8"
    Error while burning bootloader. 


Please tell me what to do. Any help will be appreciated.

Thank you
Google is your friend!!!
Apparently this is a known regression bug not yet corrected. The possible solution is also suggested there by user rigelinorion and here is the quote:

Hello, I solved it this way...

Open for edit the file C:\Program Files\Arduino\hardware\arduino\avr\platforms.txt
this is standard section uploader/programmers tools

#==============================================================================
tools.avrdude.cmd.path={runtime.ide.path}/hardware/tools/avr/bin/avrdude
tools.avrdude.config.path={runtime.ide.path}/hardware/tools/avr/etc/avrdude.conf
tools.avrdude.cmd.path.linux={runtime.ide.path}/hardware/tools/avrdude
tools.avrdude.config.path.linux={runtime.ide.path}/hardware/tools/avrdude.conf

tools.avrdude.upload.params.verbose=-v -v -v -v
tools.avrdude.upload.params.quiet=-q -q
tools.avrdude.upload.pattern="{cmd.path}" "-C{config.path}" {upload.verbose} -p{build.mcu} -c{upload.protocol} -P{serial.port} -b{upload.speed} -D "-Uflash:w:{build.path}/{build.project_name}.hex:i"

tools.avrdude.program.params.verbose=-v -v -v -v
tools.avrdude.program.params.quiet=-q -q
tools.avrdude.program.pattern="{cmd.path}" "-C{config.path}" {program.verbose} -p{build.mcu} -c{protocol} {program.extra_params} "-Uflash:w:{build.path}/{build.project_name}.hex:i"

tools.avrdude.erase.params.verbose=-v -v -v -v
tools.avrdude.erase.params.quiet=-q -q
tools.avrdude.erase.pattern="{cmd.path}" "-C{config.path}" {erase.verbose} -p{build.mcu} -c{protocol} {program.extra_params} -e -Uefuse:w:{bootloader.extended_fuses}:m -Ulock:w:{bootloader.unlock_bits}:m -Uhfuse:w:{bootloader.high_fuses}:m -Ulfuse:w:{bootloader.low_fuses}:m

tools.avrdude.bootloader.params.verbose=-v -v -v -v
tools.avrdude.bootloader.params.quiet=-q -q
tools.avrdude.bootloader.pattern="{cmd.path}" "-C{config.path}" {bootloader.verbose} -p{build.mcu} -c{protocol} {program.extra_params} "-Uflash:w:{runtime.ide.path}/hardware/arduino/avr/bootloaders/{bootloader.file}:i" -Ulock:w:{bootloader.lock_bits}:m
#==============================================================================

create a new tool called, for example, avrdude1
simply copy section tools.avrdude and name it tools.avrdude1
the trick is that we remove switch "-Uefuse:w:{bootloader.extended_fuses}:m" from "tools.avrdude1.erase.pattern="

#=============================================================================
tools.avrdude1.cmd.path={runtime.ide.path}/hardware/tools/avr/bin/avrdude
tools.avrdude1.config.path={runtime.ide.path}/hardware/tools/avr/etc/avrdude.conf
tools.avrdude1.cmd.path.linux={runtime.ide.path}/hardware/tools/avrdude
tools.avrdude1.config.path.linux={runtime.ide.path}/hardware/tools/avrdude.conf

tools.avrdude1.upload.params.verbose=-v -v -v -v
tools.avrdude1.upload.params.quiet=-q -q
tools.avrdude1.upload.pattern="{cmd.path}" "-C{config.path}" {upload.verbose} -p{build.mcu} -c{upload.protocol} -P{serial.port} -b{upload.speed} -D "-Uflash:w:{build.path}/{build.project_name}.hex:i"

tools.avrdude1.program.params.verbose=-v -v -v -v
tools.avrdude1.program.params.quiet=-q -q
tools.avrdude1.program.pattern="{cmd.path}" "-C{config.path}" {program.verbose} -p{build.mcu} -c{protocol} {program.extra_params} "-Uflash:w:{build.path}/{build.project_name}.hex:i"

tools.avrdude1.erase.params.verbose=-v -v -v -v
tools.avrdude1.erase.params.quiet=-q -q

#this line was edited
tools.avrdude1.erase.pattern="{cmd.path}" "-C{config.path}" {erase.verbose} -p{build.mcu} -c{protocol} {program.extra_params} -e -Ulock:w:{bootloader.unlock_bits}:m -Uhfuse:w:{bootloader.high_fuses}:m -Ulfuse:w:{bootloader.low_fuses}:m

tools.avrdude1.bootloader.params.verbose=-v -v -v -v
tools.avrdude1.bootloader.params.quiet=-q -q
tools.avrdude1.bootloader.pattern="{cmd.path}" "-C{config.path}" {bootloader.verbose} -p{build.mcu} -c{protocol} {program.extra_params} "-Uflash:w:{runtime.ide.path}/hardware/arduino/avr/bootloaders/{bootloader.file}:i" -Ulock:w:{bootloader.lock_bits}:m
#==============================================================================

Here is an example of the use of the tool avrdude1 in boards.txt file

atmega8.name=ATmega8 OPTIBOOT
atmega8.upload.protocol=arduino
atmega8.upload.maximum_size=7168
atmega8.upload.speed=115200
atmega8.upload.tool=avrdude1
atmega8.bootloader.low_fuses=0xbf
atmega8.bootloader.high_fuses=0xCC
atmega8.bootloader.path=atmega8
atmega8.bootloader.file=optiboot/optiboot_atmega8.hex
atmega8.bootloader.unlock_bits=0x3F
atmega8.bootloader.lock_bits=0x0F
atmega8.bootloader.tool=avrdude1
atmega8.build.mcu=atmega8
atmega8.build.f_cpu=16000000L
atmega8.build.core=arduino
atmega8.build.variant=standard