Hello, bootstrao.sh file on Linux machine create b2 executable (copy it on boost root directory) cd "$pwd" BJAM="$my_dir/tools/build/src/engine/b2" echo "tools/build/src/engine/b2" cp "$BJAM" . Running b2 shows the error ./b2 bash: ./b2: cannot execute binary file: Exec format error Can somebody explain? Thank you, Leonid ________________________________ This message and all attachments are PRIVATE, and contain information that is PROPRIETARY to Intelligent Automation, Inc. You are not authorized to transmit or otherwise disclose this message or any attachments to any third party whatsoever without the express written consent of Intelligent Automation, Inc. If you received this message in error or you are not willing to view this message or any attachments on a confidential basis, please immediately delete this email and any attachments and notify Intelligent Automation, Inc.