Chapter 1: Select and verify the environment

Follow the lessons in order; keep the application source for later exercises.

• Install the binary distribution matching your OS.
• Read and write a PV through CA and PVA.
• Distinguish host architecture from the OS directory.
• Compare the three IOC startup methods.

Chapter exercises

1. Add the air temperature record and repeat the failed-search exercise in lesson 1.2. Restore the client address afterward.
2. Print EPICS_HOST_ARCH and explain why linux-x86_64 does not identify a compatible Debian, Ubuntu, or Rocky binary tree.
3. Stop the IOC with exit before starting Chapter 2.

Before moving on

• EPICS_BASE and EPICS_HOST_ARCH come from the setEpicsEnv.bash script matching your operating system.
• EPICS_CA_ADDR_LIST is restored to 127.0.0.1 after the failed-search check in lesson 1.2.
• Every softIocPVX session from lesson 1.2 is stopped with exit.
• ~/ioc-training/first/water.db stays outside the EPICS distribution directory.