I have a disk which failed on another computer. I took it out and plugged it into this one (running kubuntu 17.10) via a usb port. 

Nothing happens when it's plugged in. I checked dmesg, fdisk and testdisk. I didn't try gparted because it functions with the gnome interface. Kubuntu's equivalent, partitionmanager, doesn't see the disk.

I looked in `/dev/` but there is no sdc stuff. I see several sda, because I have several partitions. 

```
/dev$ ls sd*
sda  sda1  sda2  sda3  sda4  sda5

```

Nothing changes when I plug this disk in or out. It's as if there was nothing at the end of the wire. 

I need a way to tell the computer that it's there. Either with a konsole command line or through some disk recovery software. 

I read that : "/dev/sdb1 will be a symlink to /dev/scsi/host5....
You can use the ln command to create a /dev/sdb1"

I have no /dev/scsi but I have several scsi folders. 
In /proc/scsi I have a file called device\_info
There I can read (among others) : 

```
'SEAGATE' 'ST157N' 0x1
'SEAGATE' 'ST296' 0x1
'SEAGATE' 'ST1581' 0x1

```

Could one of these correspond to my failing HD? The problem is that this info stays even if I unplug the HD...

All advice welcome.