Guide To The Operating System 5.1 Jun82

5. \ Venso" GUIDE TO THE OPERATING SYSTEM June 15, 1982 Introduction • • .'. • • • • • • • • 1 Configuration • • • • • • • • • • • • • 1 OS Volume Types •••••••••••• 2 System Files • • • • • • • • • • • • • • 3 Installing the OS •••• • • • • • • • 4 How to Boot the OS • • • • • • • • • • • 6 Shutting Down the OS • • • • • • • • • • 7 Program Development •••••••••• 8 The OS Command Shell • • • • • • • • • • 8 The Filer . . . · . . . . . . . . . 10 The Privileged Filer • • • • 13 The Asynchronous File System • • 15 Printers and RS232 Input/Output 15 · . . . . . . . . . . . 18 Intrinsic Units · . . . . . . . . . . . 19 Pas lib · . . . . . . . . . . . 20 The OS Interface · . . . . . . . . . 24 Additions to the OS · . . . . . . . . . 39 OS Error Messages . . . . . 41 Stack Size • Guide to OS Confidential INTRODUCTION This document explains how to use the 5.1 release of the Operating System. It includes all relevant material from prior releases and also describes the new features of this release. The User's Guide does not explain each feature of the OS in detail; instead, it explains operations such as installing and booting the system, and presents the details of the Command Shell and Filer commands (see the Operating System Reference Manual for a complete description of the Operating system). The User's Guide also contains explanations of any new features or calls that may not fit into the above topics because the Operating System Reference Manual is not updated for each new release. The User's Guide assumes that the Operating System Reference Manual that you have is dated March 1, 1982. The 5.1 release of the Operating System is the firs~ Operating system that boots from a Profile or Twiggy rather than the Apple II. The standalone OS is installed and operates differently than previous releases in several ways. Please read the paragraphs below that explain the environment that this version of the OS supports before attempting to install and run it. REMEMBER: Standalone mode is new to the OS group, too. We welcome your questions and appreciate suggestions. CONFIGURATION The standalone OS boots from either a Profile or a Twiggy. However, most people will boot the standalone OS from a Profile, and use another hard disk for the monitor. The Corvus can be reached from the 5.1 OS only as a source of monitor type files, not as an OS volume. The Apple is totally inac.cessible from the 5.1 OS, which rules out both Disk-II floppies and the Sanyo screen. The Lisa screen and keyboard are reserved for Applications. Readlns and writelns can only be seen on your Soroc. THEREFORE: IF YOU DON'T HAVE A SOROC, YOU WILL NOT BE ABLE TO USE THIS VERSION OF THE OS! Attach the Soroc to channel A of the Lisa; this channel is the second from the left when standing in front of the system. The Soroc driver supports When the OS boots from a Profile, that Profile must be attached to the parallel port (the connector farthest to the right.when viewed from th…