build { core init test/fork } create_boot_directory install_config { 0123456789 } build_boot_image { core init ld.lib.so libc.lib.so vfs.lib.so libm.lib.so posix.lib.so test-fork } append qemu_args " -nographic " run_genode_until "--- parent done ---.*\n" 20 run_genode_until "child.*exited.*\n" 5 [output_spawn_id]