今天看到/etc/modprobe.conf文件中有如下内容：
alias eth0 pcnet32
其中alias啥意思，不太明白，查之，原来是给设备做备注的。开始也忘了查man，后来才知道啥意思，再查man，解释得很详细。
alias wildcard modulename
This allows you to give alternate names for a module. For example: "alias my-mod really_long_modulename" means you can use "modprobe my-mod" instead of "modprobe really_long_modulename". You can also use shell-style wildcards, so "alias my-mod* really_long_modulename" means that "modprobe my-mod-something" has the same effect. You can’t have aliases to other aliases (that way lies madness), but aliases can have options, which will be added to any other options.Note that modules can also contain their own aliases, which you can see using modinfo. These aliases are used as a last resort (ie. if there is no real module, install, remove, or alias command in the configuration).
