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帮助从终端打开 CD-ROM

tag-icon • tag-icon command-line cd-drive
帮助从终端打开 CD-ROM

我尝试从终端打开 CD-ROM，但显示错误；

eject: unable to find or open device for: `/dev/cdrom'

我尝试使用以下命令查找 CD-ROM：

sy@shiv:~$ sudo lshw -C disk
  *-disk
       description: SCSI Disk
       product: Card  Reader
       vendor: Multiple
       physical id: 0.0.0
       bus info: scsi@6:0.0.0
       logical name: /dev/sdb
       version: 1.00
       size: 3837MiB (4023MB)
       capabilities: removable
       configuration: logicalsectorsize=512 sectorsize=512
     *-medium
          physical id: 0
          logical name: /dev/sdb
          size: 3837MiB (4023MB)
          capabilities: partitioned partitioned:dos
  *-disk
       description: ATA Disk
       product: ST9500325AS
       vendor: Seagate
       physical id: 0.0.0
       bus info: scsi@1:0.0.0
       logical name: /dev/sda
       version: LVM1
       serial: S2WJMH7Q
       size: 465GiB (500GB)
       capabilities: gpt-1.00 partitioned partitioned:gpt
       configuration: ansiversion=5 guid=fbac54d6-645e-4020-9ed3-16cff0ed5c03 logicalsectorsize=512 sectorsize=512

lsblk也没有显示 CD-ROM：

sy@shiv:~$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sdb      8:16   1   3.8G  0 disk
└─sdb1   8:17   1   3.8G  0 part /media/sy/75E3-0CE2
sda      8:0    0 465.8G  0 disk
├─sda4   8:4    0  95.4G  0 part /
├─sda2   8:2    0   270G  0 part
├─sda3   8:3    0   3.9G  0 part [SWAP]
└─sda1   8:1    0   512M  0 part /boot/efi

答案1

$ sudo lshw -C disk
  *-disk                    
       …
  *-cdrom
       description: DVD-RAM writer
       product: DVDRAM GT50N
       vendor: HL-DT-ST
       physical id: 0.0.0
       bus info: scsi@1:0.0.0
       logical name: /dev/sr0
       version: LT20
       capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
       configuration: ansiversion=5 status=nodisc
  *-disk
       …

它看起来应该是这样的。/dev/sr0如果您有多个光驱，您的设备应该被命名或类似的东西。/dev/cdrom 和 /dev/dvdrom 是指向 /dev/sr0 的符号链接，它们不必存在并且似乎不再生成。

如果您确实有光盘驱动器连接到计算机，那么 Ubuntu 无法检测到它，您需要调查原因。确保驱动器连接正确（USB？SATA？）并且有足够的电力来操作驱动器（某些 USB 端口和某些驱动器播放效果不佳）。您可能会在 中找到提示dmesg。

如果设备可以运行，它也应该出现在 lsblk 和 /dev 中。/dev/disk/by-path这可能是您在排除硬件问题时最有用的表示。

$ lsblk 
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
…
sr0     11:0    1  1024M  0 rom  
…

$ ll /dev/disk/by-path/
total 0
drwxr-xr-x 2 root root 280 Nov 16 10:36 ./
drwxr-xr-x 8 root root 160 Nov 16 11:01 ../
lrwxrwxrwx 1 root root   9 Nov 16 11:01 pci-0000:00:1f.2-ata-1 -> ../../sda
lrwxrwxrwx 1 root root  10 Nov 16 11:01 pci-0000:00:1f.2-ata-1-part1 -> ../../sda1
lrwxrwxrwx 1 root root  10 Nov 16 11:01 pci-0000:00:1f.2-ata-1-part2 -> ../../sda2
lrwxrwxrwx 1 root root  10 Nov 16 11:01 pci-0000:00:1f.2-ata-1-part3 -> ../../sda3
lrwxrwxrwx 1 root root  10 Nov 16 11:01 pci-0000:00:1f.2-ata-1-part4 -> ../../sda4
lrwxrwxrwx 1 root root  10 Nov 16 10:25 pci-0000:00:1f.2-ata-1-part5 -> ../../sda5
lrwxrwxrwx 1 root root  10 Nov 16 10:19 pci-0000:00:1f.2-ata-1-part6 -> ../../sda6
lrwxrwxrwx 1 root root   9 Nov 27 09:10 pci-0000:00:1f.2-ata-2 -> ../../sr0
lrwxrwxrwx 1 root root   9 Nov 16 11:01 pci-0000:00:1f.2-ata-3 -> ../../sdb
lrwxrwxrwx 1 root root  10 Nov 16 11:01 pci-0000:00:1f.2-ata-3-part1 -> ../../sdb1
lrwxrwxrwx 1 root root  10 Nov 16 11:01 pci-0000:00:1f.2-ata-3-part2 -> ../../sdb2
lrwxrwxrwx 1 root root  10 Nov 16 11:01 pci-0000:00:1f.2-ata-3-part3 -> ../../sdb3

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