I am trying to run x86-run ./x86/msr.flat but am getting the error: ./x86-run ./x86/msr.flat /home/scratch.mwoodpatrick/kvm/fsf/kvm-qemu-bin-64/bin/qemu-system-x86_64 -nodefaults -enable-kvm -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -kernel ./x86/msr.flat scripts/arch-run.bash: line 32: exec: {stdout}: not found If I just run: /home/scratch.mwoodpatrick/kvm/fsf/kvm-qemu-bin-64/bin/qemu-system-x86_64 -nodefaults -enable-kvm -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -kernel ./x86/msr.flat The test passes. Does the script require a particular version of bash? I'm running: GNU bash, version 3.2.25(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2005 Free Software Foundation, Inc. On CentOS release 5.7 (Final)