Differences for UnixWare 2 users

If you are familiar with UnixWare 2, note the following differences in UnixWare in addition to the new features listed in ``Release 7.0.0 new features'':

Software management

See the Getting Started Guide for installation information.

Application compatibility

If you are using the Panorama Desktop, UnixWare 2 compiled X applications will often fail because LD_LIBRARY_PATH is not defined when the desktop comes up. (It is defined for the UnixWare Desktop). Type the following command:

LD_LIBRARY_PATH=:/usr/X11R6.1/lib export LD_LIBRARY_PATH

This should allow the binary to get past the loading of the dynamic libraries.

See ``What are porting, integration, and compatibility?'' for information about application compatibility.

Installation

Installation is substantially improved.

See the Getting Started Guide and Getting Started Guide for information.

System administration and SCOadmin

Single network administration tool

A single network administration tool, the Network Configuration Manager, with its own online help system, lets you configure and manage network connections, network adapters, and WANs via the netcfg(1M) utility. You can still view network device information in dcu(1M), which you can access only via the console in this release.

netcfg autodetects PCI and ISA network and graphics adapters and configures MDI, DLPI and ODI drivers.

Hardware autodetection

UnixWare uses dcu(1M), a driver-independent autoconfiguration subsystem, for hardware autodetection.

In general, EISA, MCA, and PCI devices are autodetected, whereas ISA devices whose configuration differs from their entry in the System file will not be detected unless you enter configuration information via dcu. An exception to this rule is that ISA network and graphic adapters are autodetected via driver probes.

mosy compiler

The mosy(1Msnmp) compiler is shipped with the base operating system.

Administration commands

All PDI commands have been renamed to have an ``sdi'' prefix. Links to the original name have been maintained. Other commands, for example, tapecntl(1), tape(1), edvtoc(1M), prtvtoc(1M), and diskadd(1M), remain.

Point-to-point remote administration

Most managers have point-to-point remote administration capabilities available from the Open Host menu option.

NetWare administration

NetWare administration is now available under SCOadmin. See ``SCOadmin managers'' for full details.

Third-party management and configuration utilities

Third-party utilities such as RAID configuration and monitoring utilities have not been tested and are not guaranteed to be compatible with UnixWare.

System backup

ARCserveIT from Computer Associates provides the interface for backup and restore.

Tape backup

You can restore a tape backup on UnixWare provided the backup application, the tape media and the tape mode used to create the backup are all compatible with UnixWare.

crash(1M) command

Expression parsing is enhanced in crash(1M).

dump(1) command

Error handling is enhanced in dump(1).

Core operating system

The core operating system has developed substantially during previous releases of UnixWare. The following differences exist between UnixWare 2 and UnixWare:

• The operating system can be booted from alternative disks or partitions. See boot(1M) for details.

• Limited PCMCIA support is still available as in SCO UnixWare 2.1.

• Multi-processor support is limited to the following:

  • MPS

  • Compaq

• The S5 filesystem is the only SCO OpenServer filesystem that UnixWare supports. The native SCO OpenServer filesystems AFS, EAFS and HTFS are not supported. SCO OpenServer specific filesystem commands are not supported.

• Tunables differ as follows:

  • The tunable parameter PSE_PHYSMEM has been replaced by DEDICATED_MEMORY.

  • The tunable parameters PHYSTOKVMEM, MAXPMEM, LGDMA_RATIO, and PSE_VMEMSIZE have been removed.

  • LOTSFREEBYTES, DESFREEBYTES, MINFREEBYTES, and PAGEOUTRATE are now autotuned.
  See ``Tunable parameters'' for full details of tunable parameters.

• Various resource limits have been increased.

Desktop

• The system no longer prompts you for a remote X session when logging in from an X-terminal, for example, when coming in over telnet. You now need to use /usr/dt/bin/Xsession. Consequently, all X-terminals should be configured for XDM if appropriate.

• The XDM commands (for example, start_glogin, enable_glogin, disable_glogin) have been replaced by scologin.

• The xterm windows (the default terminal windows under the Panorama or Failsafe desktop sessions) function as standard X11R6 xterms, even when the system is installed with a two button mouse. In particular, the edit menu does not come up from the right button, nor will <Ctrl><Alt>Button1 paste text. There are two alternates available: use <Shift><Ins> to paste, or use dtterm (the default terminal window under the CDE desktop).

• Virtual terminals 2 through 8 are now automatically created at multi-user initialization time, and come equipped with login sessions.

Mail and messaging

• mailsurr is not supported.

• The MHS gateway is not supported.

• sendmail is the default Mail Transport Agent.

• /bin/mail is now equivalent to mailx(1).

• vacation(1) is compatible with MMDF's rcvtrip.

Printing

• HP Network printers are supported.

• Users can control remotely submitted print jobs.

Base drivers

• There is support for multi-console devices produced by Boundless Technology and Maxpeed. We do not distribute the relevant device drivers. Contact the vendor directly for information about availability and supported devices.

• Virtual terminals similar to SCO OpenServer multi-screens are available as well as UnixWare 2-style switching. See ``Running programs simultaneously with multiscreen displays''. Both sets of key combinations work equally well.

  The term ``vt'' replaces ``tty''. The numbering of vts starts at 0. This means that <Ctrl><Alt><F1> switches you to vt00.

Networking

• NetWare Services have been upgraded to version 4.10a. This consists of both client and server software. Features include:

  • NDS v5.04

  • NetWare IP (IPX tunnelled over IP)

  • Enhanced performance

• IPX/SPX is configurable with Network Configuration Manager, via the netcfg(1M) utility.

• Long password support is available.

• The serial driver supports up to 115.2kbps.

• Pseudo tty connections are supported.

• The FTP application library (libftp) is available.

Network hardware support

• The separate configuration utilities for protocol stacks and network cards in previous UnixWare releases have been replaced by the Network Configuration Manager, a single-point, SCOadmin-based network configuration tool. The Network Configuration Manager provides online help, automatic device detection, and a facility to test the operation of configured network adapters.

• The UnixWare network driver architecture is based on mdi(7) (MAC Driver Interface), a modular STREAMS-based interface. Existing legacy ODI and DLPI-compliant drivers from third-parties which run on UnixWare 2 are also compatible with this release.

• The network driver statistics utility ndstat(1M) provides detailed information in several views for each configured network adapter.

• Cards and drivers can be restarted while maintaining connections.

• Online help is available for network adapter configuration in both character-based and graphical mode.

X-server and graphics hardware support

• Drawing requests from an X-client are completed even when the user has switched to an ASCII console screen.

• Adobe TrueType conversion is not provided.

• Selected graphics controllers from Chips and Technologies, based on laptop graphics hardware, are supported. See the Compatible Hardware Web Page (or the static version on your product CD-ROM).

Security

RFC 1122/1123 (Internet hosts: communication layer and application layer and support) is supported.

SCOhelp and X11 clients

A browser based on Netscape Navigator 3.0 is provided. Dynatext is not available.

Visual Tcl

• The Tcl base has been upgraded from Tcl7.3 to Tcl7.6. The new base includes added event handling, timers, and socket support to the Tcl core.

• Additional VTcl capability includes:

  • The ability to run servers standalone from the command line

  • Optional support for socket connections between the interpreter and server

  • Help system suppression

  • ValueString specification on some widgets provided as widget value (as callbacks or queries)

  • Support for widgets values provided directly into a Tcl variable

  • Multi-option GetValue on a single widget

  • The ability to run (script perceived) blocking transient dialogs

  • Shared Tcl and VTcl libraries

Console Multiscreens

See the keyboard(7) manual page for details of screen switch sequences. Users who prefer to use vtlmgr(1) and newvt(1) instead of multiscreens can still continue to do so. The default configuration described above uses virtual terminals 00 through 08. The first free virtual terminal available is therefore 09. To return the console to the traditional UnixWare configuration without text login prompts, run the following command:

sacadm -d -p contty

The login prompts can be subsequently re-enabled by running the following command:

sacadm -e -p contty

For more information on using multiscreens see ``Running programs simultaneously with multiscreen displays''.

Documentation

Documentation is shipped as HTML and may be read with any world wide web browser. It is organized as topics, rather than as books.