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
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