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14.1 - EDK/SDK - Create Boot Image does not overwrite if full path is not specified
SDK launches bootgen without -w switch:
bootgen -image bootimage.bif -o i aaa -encrypt bbram aaa
ERROR:BootGen:117 - File 'aaa.bin' already exists, and an attempt was made to overwrite it.
Use a different file name, or use the '-w on' option to force file overwrites.
When entering a file name in the Xilinx Tools -> Create Boot Image, make sure that the file name and full path are provided.