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System Administration Guide: Virtualization Using the Solaris Operating System
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Zone Construction

This section applies to initial zone construction, and not to the cloning of existing zones.

After you have configured a non-global zone, you should verify that the zone can be installed safely on your system's configuration. You can then install the zone. The files needed for the zone's root file system are installed by the system under the zone's root path.

A non-global zone is installed with the limited networking configuration (generic_limited_net.xml). Network configuration types are described in Chapter 16, Managing Services (Tasks), in System Administration Guide: Basic Administration. The zone administrator can switch the zone to the open, traditional networking configuration (generic_open.xml) by using the netservices command. Specific services can be enabled or disabled by using SMF commands. For more information, see Switching the Non-Global Zone to a Different Networking Service Configuration.

A successfully installed zone is ready for booting and initial login.

The method used to initially install packages in a Solaris installation is also the method used to populate a non-global zone.

The global zone must contain all the data necessary to populate a non-global zone. Populating a zone includes creating directories, copying files, and providing configuration information.

Only the information or data that was created in the global zone from packages is used to populate the zone from the global zone. For more information, see the pkgparam(1) and pkginfo(4) man pages.

Data from the following are not referenced or copied when a zone is installed:

  • Non-installed packages

  • Patches

  • Data on CDs and DVDs

  • Network installation images

  • Any prototype or other instance of a zone

In addition, the following types of information, if present in the global zone, are not copied into a zone that is being installed:

  • New or changed users in the /etc/passwd file

  • New or changed groups in the /etc/group file

  • Configurations for networking services such as DHCP address assignment

  • Customizations for networking services such as UUCP or sendmail

  • Configurations for network services such as naming services

  • New or changed crontab, printer, and mail files

  • System log, message, and accounting files

If Solaris auditing is used, modifications to auditing files copied from the global zone might be required. For more information, see Using Solaris Auditing in Zones.

The following features cannot be configured in a non-global zone:

  • Solaris Live UpgradeTM boot environments

  • Solaris Volume Manager metadevices

  • DHCP address assignment in a shared-IP zone

  • SSL proxy server

The resources specified in the configuration file are added when the zone transitions from installed to ready. A unique zone ID is assigned by the system. File systems are mounted, network interfaces are set up, and devices are configured. Transitioning into the ready state prepares the virtual platform to begin running user processes. In the ready state, the zsched and zoneadmd processes are started to manage the virtual platform.

  • zsched, a system scheduling process similar to sched, is used to track kernel resources associated with the zone.

  • zoneadmd is the zones administration daemon.

A zone in the ready state does not have any user processes executing in it. The primary difference between a ready zone and a running zone is that at least one process is executing in a running zone. See the init(1M) man page for more information.

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