How do I know my optical drive is an SCSI generic device?
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Kind of a trick question. Most modern linux view storage by using scsi access. That doesn't mean the real physical access is scsi. For that you'd need a scsi adapter and a scsi optical drive. That is not unheard of but kind of rare.
I suspect you have some sata drive or even ide that is simply being accessed by linux as a scsi device.
cdcd allows control of a CD player either directly off of the command
line or in its own interactive query mode. Invoking cdcd without a
command will cause cdcd to enter query mode. Invoking cdcd with a com-
mand will cause cdcd to execute that command and then terminate when it
Use DEVICE as the CD device. DEVICE is the device special file
name of the CD-ROM device. Do not use a Linux SCSI Generic
Actually, I believe that's really saying not to use generic scsi device addresses, the kind that use major and minor numbers. Only use the standard /dev/sr* style device entries.
It used to be common for some cd-rom drive controlling programs to require direct device addressing, but that's rarely needed any more.
I still use cdrecord thus: cdrecord <some_parameters> dev=1001,0,0 <some_other_parameters>. If I address the device as, say, /dev/hdc, then it complains, although accepts it anyways. Is this what you mean? Although in cdrecord syntax 1001,0,0 are scsibus, target, lun.