Lecture 6
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* notes
* openstack
* kernel building

How to setup from stock 16.04 server
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apt-get install build-essential kernel-package libssl-dev
apt-get install emacs-nox libncurses5-dev linux-source

maybe
  apt-get install openssh-server
  (to allow remote access)

to become root
  sudo su -

to add an account
  adduser

to give that acount access similar to ubuntu (as root)
  shadowconfig off
  emacs /etc/group
    - add your name to the groups that have ubuntu
  shadowconfig on

to enable remote logins with passwords (not just keys)
  emacs /etc/ssh/sshd_config
     change PasswordAuthentication to yes (from no)
  service sshd restart

To reboot a VM
  shutdown -r now

To configure a linux kernel
  make menuconfig      <== to set options with an interface
  make localmodconfig  <== to create a configuration based on modules loaded
  make oldconfig       <== to use a previously generated .config

DON'T RECONFIGURE THE KERNEL ON THE VMs UNLESS YOU WANT TO BUILD FROM SCRATCH

To build a configured kernel from source
  make
  make modules


To install a built kernel
  sudo make install
  sudo make modules_install
  update-grub

Reboot to run the new kernel