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磁盘管理-王凯
source link: http://blog.51cto.com/13560258/2072901
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一：设备文件设备文件：关联至一个设备驱动程序，进而能够跟与之对应硬件设备进行通信设备类型：块设备：block，存取单位“块”，磁盘字符设备：char，存取单位“字符”，键盘设备号码：主设备号：majornumber,标识设备类型次设备号：minornumber,标识同一类型下的不同设备创建设备文件：mknod/app/wangkaib85mknod/app/dvdb110mknod/app/tty
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