How do I run the command `lsblk | grep disk` on my chromebook?

Question

I'm trying to get Chrubuntu onto an external HDD (500GB), so I can dual boot Ubuntu on my Acer C710 SSD (16GB).

I was looking throgh the Chrubuntu documentation and it says I might need to specify the device name of my external drive, which can be found by running

lsblk | grep disk

I did run it in crosh on the chrome terminal but all I get is

unkown commmand lsblk

Can someone tell me why I'm getting this error and how to fix it?

Answer 1

Move into your shell by typing

shell

Then, you type

sudo lsblk | grep disk 

in it and hit the Enter key. It should work after that.