[PLUG] SCSI device driver

[Rich Shepard]

On Mon, 29 Jan 2018, John Jason Jordan wrote:

> ln -s /dev/sr0/ /dev/sg0/
> ln: failed to access ‘/dev/sg0/’: Not a directory

   Oops. My mistake.

> ln -s /dev/sr0 /dev/sg0
> ln: failed to create symbolic link ‘/dev/sg0’: File exists

   When you do a long list of devices,
 	ls -l /dev/s*
do you see sg0? Is it displayed as a file, a link, or something else? The
color should provide the answer.

   For example, from this host:

$ ll /dev/s*
brw-rw---- 1 root disk   8,   0 Jan 19 12:26 /dev/sda
brw-rw---- 1 root disk   8,   1 Jan 19 12:26 /dev/sda1
brw-rw---- 1 root disk   8,   2 Jan 19 12:26 /dev/sda2
brw-rw---- 1 root disk   8,   3 Jan 19 12:26 /dev/sda3
brw-rw---- 1 root disk   8,   4 Jan 19 12:26 /dev/sda4
brw-rw---- 1 root disk   8,   5 Jan 19 12:26 /dev/sda5
brw-rw---- 1 root disk   8,   6 Jan 19 12:26 /dev/sda6
brw-rw---- 1 root disk   8,   7 Jan 19 12:26 /dev/sda7
brw-rw---- 1 root disk   8,   8 Jan 19 12:26 /dev/sda8
brw-rw---- 1 root disk   8,   9 Jan 19 12:26 /dev/sda9
crw------- 1 root root  10, 231 Jan 19 12:26 /dev/snapshot
brw-rw---- 1 root cdrom 11,   0 Jan 19 12:26 /dev/sr0
lrwxrwxrwx 1 root root       15 Jan 19 04:26 /dev/stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root       15 Jan 19 04:26 /dev/stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root       15 Jan 19 04:26 /dev/stdout -> /proc/self/fd/1

   You can see the difference between actual files and links (on the bottom
3).

Rich