Yoder: Initial page

2012-10-22T12:12:31Z

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[[Category:ECE497]]
{{YoderHead}}

Installing the cross development tools and the kernel on a laptop is nice, but sometimes the downloads are too long for such a portable device. I've had a bitbake run some 12 hours. Another option is to use a remote machine. In my case our CSSE department has created a virtual machine with Ubuntu 12.04 installed on it.

To install on a remote machine are the same as above; However here's a couple of tips to make it easier.

First, ssh to the remote machine. Assume the machine is called '''csse''' and your login name is '''beagle'''.

local$ '''ssh -XCc blowfish beagle@csse'''

You can leave the '''beagle@''' off if you have the same login on both machine. The '''-C''' says to compress everything that's moved between the machines over the network. This is good for slow connections. The '''X''' says to pass the X11 display information to the remote machine. This way you can run graphical programs, such as gedit, on the remote machine and the graphics will display on your local machine (assuming you are running X11 on your local machine).

If you are '''ssh'''ing a lot check out the tip [[ECE497_Tips_and_Tricks#Suspending_ssh | here]] about suspending ssh and the tip [[ECE497_Tips_and_Tricks#Authorizing_ssh | here]] about authorizing ssh so you don't have to enter your password every time.

Once logged on to the removed machine run

remote$ '''sudo apt-get install byobu'''

This installs '''byobu''' which is a program that lets you connect to the same shell from multiple machines. Once installed run

remote$ '''byobu'''

You'll see something like:

[[File:Screenshot-beagle@ubu-may_-_byobu.png | 300px]]

So what? Run a couple of commands, like '''ls''' or '''who''', then hit '''F6'''. This will suspend your session. Now run '''byobu''' again. You'll be back in the same session. The session keeps running, even when you aren't connected.

Do you see the use?
* Fire up byobu
* Start a long bitbake
* Once you are sure it running OK, hit F6 and go home.
* From home fire up byobu and you'll see your bitbake (probably still running).
* You can F6 and check on it later.

Try opening another terminal and running byobu in both terminals. You'll see the same thing in both.

Run

host$ '''man byobu'''

to see what it can do. Here's a list of shortcuts:

F2 - Create a new window
F3 - Move to previous window
F4 - Move to next window
F5 - Reload profile
F6 - Detach from this session
F7 - Enter copy/scrollback mode
F8 - Re-title a window
F9 - Configuration Menu
F12 - Lock this terminal
Ctrl-a $ - show detailed status
Ctrl-a R - Reload profile
Ctrl-a ! - Toggle key bindings on and off
Ctrl-a k - Kill the current window

But there is much more. Go and explore.

{{YoderFoot}}

EBC Exercise 08 Installing Development Tools - Remote Development - Revision history

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