安装RedHat Linux AS 5 ：no valid devices were found

网上下了个RedHat Linux AS 5 正式版DVD（md5:9A462D3C60CB219D7017B30DDD1C52CD）

用虚拟机安装的时候

remove all partitions on selected drives and create default layout.
remove linux partitions on selected drives and create default layout.
use free space on selected drives and create default layout.
create custom layout.

which drive(s) do you want to use for this installation?
当选择任意一个后出现如下的信息提示：
no drives found
an error has occurred -no- valid devices were found on which to create new file systems. pleae check your hadware for the cause of this problem.

这个是vmware的问题，vmware默认模拟的硬盘是SCSI,www.linuxidc.com但是它模拟SCSI又有问题

解决办法：
1.到网上下载vmware的SCSI支持驱动，（或者高版本的vmware）

2.重建一个虚拟机，选择custom方式,在模拟硬盘的选项那改为IDE。

个人推荐使用后者，比较方便，而且模拟出来的硬盘SCSI跟IDE基本上没什么速度差异。