解决了如下问题：
1.启动的时候报错，需要等30秒才能启动的问题
错误日志如下：
kernel:ata2:softresettingport
kernel:ata2:softresetfailed(1stFISfailed)
kernel:ata2:portfailedtorespond(30secs)
kernel:ata2:COMRESETfailed(devicenotready)
5.1解决了这个问题，据说是某个内核版本的问题。
2.解决了DELLVostro200网卡驱动和其他设备驱动的问题
其实就是集成了Intel的ICH9系列的驱动，包括IntelCorporation82G33/G31/P35/P31。自动识别设备如下：
#lspci
00:00.0Hostbridge:IntelCorporation82G33/G31/P35/P31ExpressDRAMController(rev02)
00:01.0PCIbridge:IntelCorporation82G33/G31/P35/P31ExpressPCIExpressRootPort(rev02)
00:02.0VGAcompatiblecontroller:IntelCorporation82G33/G31ExpressIntegratedGraphicsController(rev02)
00:19.0Ethernetcontroller:IntelCorporation82562V-210/100NetworkConnection(rev02)
00:1a.0USBController:IntelCorporation82801I(ICH9Family)USBUHCIController#4(rev02)
00:1a.1USBController:IntelCorporation82801I(ICH9Family)USBUHCIController#5(rev02)
00:1a.2USBController:IntelCorporation82801I(ICH9Family)USBUHCIController#6(rev02)
00:1a.7USBController:IntelCorporation82801I(ICH9Family)USB2EHCIController#2(rev02)
00:1b.0Audiodevice:IntelCorporation82801I(ICH9Family)HDAudioController(rev02)
00:1d.0USBController:IntelCorporation82801I(ICH9Family)USBUHCIController#1(rev02)
00:1d.1USBController:IntelCorporation82801I(ICH9Family)USBUHCIController#2(rev02)
00:1d.2USBController:IntelCorporation82801I(ICH9Family)USBUHCIController#3(rev02)
00:1d.7USBController:IntelCorporation82801I(ICH9Family)USB2EHCIController#1(rev02)
00:1e.0PCIbridge:IntelCorporation82801PCIBridge(rev92)
00:1f.0ISAbridge:IntelCorporation82801IR(ICH9R)LPCInterfaceController(rev02)
00:1f.2RAIDbuscontroller:IntelCorporation82801SATARAIDController(rev02)
00:1f.3SMBus:IntelCorporation82801I(ICH9Family)SMBusController(rev02)
之前的RHEL5就算我手动装上Intel的网卡驱动，网卡还是显示为unknowndevice。
使用5.1以后，在安装的过程中就自动识别了网卡。
这是RHEL5识别的硬件设备，同样的硬件配置：
#lspci
00:00.0Hostbridge:IntelCorporationDRAMController(rev02)
00:01.0PCIbridge:IntelCorporationPCIExpressRootPort(rev02)
00:02.0VGAcompatiblecontroller:IntelCorporationIntegratedGraphicsController(rev02)
00:19.0Ethernetcontroller:IntelCorporationUnknowndevice10c0(rev02)
00:1a.0USBController:IntelCorporationUSBUHCIController#4(rev02)
00:1a.1USBController:IntelCorporationUSBUHCIController#5(rev02)
00:1a.2USBController:IntelCorporationUSBUHCIController#6(rev02)
00:1a.7USBController:IntelCorporationUSB2EHCIController#2(rev02)
00:1b.0Audiodevice:IntelCorporationHDAudioController(rev02)
00:1d.0USBController:IntelCorporationUSBUHCIController#1(rev02)
00:1d.1USBController:IntelCorporationUSBUHCIController#2(rev02)
00:1d.2USBController:IntelCorporationUSBUHCIController#3(rev02)
00:1d.7USBController:IntelCorporationUSB2EHCIController#1(rev02)
00:1e.0PCIbridge:IntelCorporation82801PCIBridge(rev92)
00:1f.0ISAbridge:IntelCorporationUnknowndevice2916(rev02)
00:1f.2RAIDbuscontroller:IntelCorporation82801HR/HO/HH(ICH8R/DO/DH)SATARAIDController(rev02)
00:1f.3SMBus:IntelCorporationSMBusController(rev02)
3.可以使用yum自动升级
CentOS最爽的地方，不止免费获取，而且可以自动升级。
关于CentOS，CentOS其实就是RHEL的重新打包发布版，去掉了Redhat的标志，fix了一些bug（因为它比对应的RHEL版本晚发布。）
下载本文示例代码
