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This has been replaced by https://github.com/kasemir/epics-train-2021

epics-train

Resources for EPICS Introduction. Started as V4 and CSS introduction at EPICS meeting, then updated for other training sessions.

Virtual Linux Server Setup

Download VirtualBox and also the VirtualBox Extension Pack from https://www.virtualbox.org/wiki/Linux_Downloads .

sudo rpm --install VirtualBox-5.2-5.2.18_124319_el7-1.x86_64.rpm

Add yourself to group required to run vbox sudo /usr/sbin/groupadd vboxusers sudo /usr/sbin/usermod -G vboxusers $USER

Start VirtualBox

Training VM

Create new VM

Name: Training
Type: Linux
Version: RedHat (64-bit)
Memory Size: 3094 MB
Disk: VDI, dynamically allocated, 20GB

Update VM settings to use several CPU cores.

Start up with CentOS-7-x86_64-DVD-1804.iso: When starting VM for the first time, VirtualBox will prompt for an image. To boot from ISO image later, open Settings, Storage, Controller: IDE "Empty", press icon to select Centos ISO, then start the VM.

Software Selection: "GNOME Desktop" with add-ons

  • GNOME Applications
  • Development Tools

Would like to not install these, to be removed later:

  • LibreOffice
  • Brasero, Rythmbox, shotwell

Network & Host name: Turn ethernet "on", hostname training.epics.

Select the storage/target disk, begin installation. While that is progressing for quite some time, use UI options to set root password to $root. Add user training, pass $training and add group wheel

Reboot VM.

Log in as training user.

In the VirtualBox menu, select Devices, Insert Guest Additions CD Image. This should automatically execute

sudo /run/media/training/VB*/VBoxLinuxAdditions.run

(In one case, display now turned into gibberish. Power VM off, restart).

"Eject" the guest additions CD.

Applications, System Tools, Settings: Under Details, Users, select Automatic Login for the 'training' user. (Seemed to reset to no-automatic-login. Try also via the 'power' button in toolbar, training, Account Settings) Under Power, set Blank Screen to 'Never' and turn Automatic Suspend off.

Restart VM once more. The VM's display will now follow the size of the host window.

In case 'ssh' access is required from the host: Open VirtualBox Devices, Network, Network Settings, Adapter 1 (NAT), Advanced, Port Forwarding. Add a new rule from host 127.0.0.1:2200 to guest 10.0.2.15:22. Host can now access VM via ssh -p 2200 training@localhost.

Training Setup

Log on as user training, pass $training, then

git clone https://github.com/kasemir/epics-train.git

Invoke Applications, Utilities, Tweak Tool. Configure Desktop, Background: Use epics-train/EPICS.png, centered Configure Windows, Titlebar, Middle Click: Lower

Zoom: Global zoom of GTK tools (CSS, GEdit, ...): export GDK_SCALE=2

GEdit: Doesn't seem to support Ctrl +/- or Ctrl Scrollwheel zoom. When GEdit is running, use Text Editor -> Preferences -> Font & Color from menu to change font size.