CentOS 5.4中编译Xen源码时报错 [iasl] 错误
在CentOS 5.4中编译xen源码时：执行make xen tools stubdom以后在最后报以下错误：
ACPI ASL compiler (iasl) is needed
Download and install Intel ACPI CA from
http://acpica.org/downloads/
make[8]: *** [iasl] 错误 1
make[8]: Leaving directory `/home/Downloads/xen-4.0.1/tools/firmware/hvmloader/acpi'
make[7]: *** [subdir-all-acpi] 错误 2
make[7]: Leaving directory `/home/Downloads/xen-4.0.1/tools/firmware/hvmloader'
make[6]: *** [subdirs-all] 错误 2
make[6]: Leaving directory `/home/Downloads/xen-4.0.1/tools/firmware/hvmloader'
make[5]: *** [subdir-all-hvmloader] 错误 2
make[5]: Leaving directory `/home/Downloads/xen-4.0.1/tools/firmware'
make[4]: *** [subdirs-all] 错误 2
make[4]: Leaving directory `/home/Downloads/xen-4.0.1/tools/firmware'
make[3]: *** [all] 错误 2
make[3]: Leaving directory `/home/Downloads/xen-4.0.1/tools/firmware'
make[2]: *** [subdir-install-firmware] 错误 2
make[2]: Leaving directory `/home/Downloads/xen-4.0.1/tools'
make[1]: *** [subdirs-install] 错误 2
make[1]: Leaving directory `/home/Downloads/xen-4.0.1/tools'
make: *** [install-tools] 错误 2
解决办法：执行如下命令：
yum install iasl