Linux下如何检测DVD刻录机的设备名及写入速度

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  现在的电脑都有配置DVD刻录机,那么要如何知道自己电脑的DVD刻录机的名字及写入速度呢?下面小编就给大家介绍几个Linux下检测DVD刻录机的名字及写入速度的方法,一起来了解下吧。

  提问:我想要知道我的DVD刻录机的名字和在烧录时的速度。该使用什么Linux命令行工具来连测DVD刻录机的设备名和速度?

  如今大多数消费PC和笔记本电脑都配备了DVD刻录机。在Linux中,光盘驱动器,如CD/DVD驱动器的名字是在引导时内核基于udev规则来命名的。有几种方法来检测刻录机的设备名称和它的写入速度。

  

  方法一

  找出与DVD刻录机相关的设备名称最简单的方法是使用dmesg命令行工具,它打印出内核的消息缓冲区。在dmesg的输出中,寻找一个安装好的DVD刻录机:

  $ dmesg | egrep -i --color ‘dvd|cd/rw|writer’

  

  上述命令的输出会告诉你你的Linux系统上是否检测到了DVD刻录机以及它被分配的名字。本例中,DVD刻录机的设备名称为“/dev/sr0”。虽然此方法不会告诉你的写入速度

  方法二

  第二个获得你DVD刻录机的信息是使用lsscsi命令,它只是列出了所有可用的SCSI设备。

  在基于Debian Linux上安装 lsscsi:

  $ sudo apt-get install lsscsi

  在基于Red Hat Linux上安装:

  $ sudo yum install lsscsi

  如果成功检测到,lsscsi命令的输出会告诉你DVD刻录机的名称:

  $ lsscsi

  

  这也不会告诉你刻录机更多的细节,比如写入速度。

  方法三

  第三种获取有关你DVD刻录机的信息是参考/proc/sys/dev/cdrom/info。

  $ cat /proc/sys/dev/cdrom/info

  CD-ROM information, Id: cdrom.c 3.20 2003/12/17drive name: sr0drive speed: 24drive # of slots: 1Can close tray: 1Can open tray: 1Can lock tray: 1Can change speed: 1Can select disk: 0Can read multisession: 1Can read MCN: 1Reports media changed: 1Can play audio: 1Can write CD-R: 1Can write CD-RW: 1Can read DVD: 1Can write DVD-R: 1Can write DVD-RAM: 1Can read MRW: 1Can write MRW: 1Can write RAM: 1

  本例中,输出会告诉你DVD刻录机(/dev/sr0)与x24的CD刻录速度(即24x153.6 Kbps)兼容,且相当于x3的DVD写入速度(即3x1385 KBps的)兼容。这里的写入速度是最大可能的速度,而实际的写入速度当然取决于使用的介质(例如:DVD-RW、DVD + RW、DVD-RAM等)。

  方法四

  另一种方法是使用一种称为wodim命令行程序。在大多数的Linux发行版,这个工具以及它的软链接cdrecord都是默认安装的。

  # wodim -prcap(or cdrecord -prcap)

  

  如果不带任何参数调用时,wodim命令会自动检测到DVD刻录机,并显示出详细的功能以及它的最大读取/写入速度。例如,你可以找出刻录机支持哪些媒体(如CD-R、CD-RW、DVD-RW、DVD-ROM、DVD-R、DVD-RAM、音频CD),以及有哪些如何读/写速度。上面的例子中输出显示,DVD刻录机对于CD拥有X24最大写入速度,对于DVD有X3的最大写入速度。

  需要注意的是wodim命令报告的写入速度会随您插入到DVD刻录机的CD/DVD介质的改变而改变,这反映了媒体规范。

  方法五

  还有一个方法来检查DVD刻录机的写入速度的是一个名为dvd+rw-mediainfo的工具,这是dvd+rw工具包(DVD+-RW/R媒体工具链)的一部分。

  在基于Debian 发行版上安装 dvd+rw-tools

  $ sudo apt-get install dvd+rw-tools

  在基于Red Hat 发行版上安装 dvd+rw-tools:

  $ sudo yum install dvd+rw-tools

  不像其他工具, dvd+rw-mediainfo命令不会产生任何输出,除非你插入DVD光盘到刻录机中。所以,当你插入DVD光盘后,运行以下的命令。用你自己的设备名称替换“/dev/sr0”。

  $ sudo dvd+rw-mediainfo /dev/sr0

 

  dvd+rw-mediainfo工具会探测插入的媒体(本例中是“DVD-R”),以找出对媒体的实际写入速度。

  上面就是Linux下检测DVD刻录机的设备名及写入速度的方法介绍了,有些方法仅能检测DVD刻录机的设备名,可根据需求选择适合的方法来检测。

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