When you use Linux there’s no need to use Minicom or Putty for console access. You can also use screen for direct console access, here’s how to do it:
$ sudo screen /dev/ttyUSB0
Just use the screen command and specify your device. In my example I’m using a USB to Serial adapter. You’ll find yourself at the console, I’m using a Cisco router here:
If you want to scroll up you’ll need to hit CTRL-A and then hit the [ button. You’ll see something like this:
Copy mode - Colum 8 Line 49(+1024) (190,49)
You can now use the page up / down or the arrow buttons to scroll up and down. Hit the ESC button to return to console access.
Cisco engineers might need the break function to access rommon. CTRL + BREAK won’t work but there is another method in screen. Do a CTRL-A and then CTRL-B to send a break. You can hit CTRL-B a couple of times to send multiple breaks.
Once you are done at the console you do CTRL-A and then K to exit your console session.
That’s all there is to it, I hope this is useful for you!