Very Computer

1. What is the difference between /dev/sg0, /dev/scd0 /dev/hdd and /dev/cdrom ?

Hi people.

I'm trying to debug a problem that I'm having with my CDROM player and
cdparanoia.  They crash talking to each other.

What is the difference between accessing the cdrom via /dev/sg0,
/dev/scd0, /dev/cdrom and /dev/hdd ?

/dev/cdrom is a link, right ?  It is a hard or soft link ?  How would I
point it to something else ?

cdparanoia needs to access the CDROM via a scsi interface.  In order for
that to work, one needs to turn OFF ATAPI CDROM support in the kernel and
turn on general scsi and CDROM scsi support.

Right now my /dev/cdrom device points to /dev/scd0.  Given that cdparanoia
needs a scsi interface, shouldn't this point to /dev/sg0 ?

Furthermore, grub load the following: hdd=ide-scsi.  That means that the
IDE ATAPI CDROM drive will be accessed using the scsi interface, right ?
Could I not point /dev/cdrom to /dev/hdd ?

Thanks,
Nobody

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