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 Release Notes for HP-UX 10.20: HP 9000 Computers > Chapter 2 Major Changes for HP-UX 10.20

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Features:

  • Eliminates the need for the -r option for all commands --

    The -r command line option is no longer needed to specify that the SD operation is directed to a root directory other than /. The command will interpret the target specified to determine what type of root (primary or alternate) it is.

    Backward compatibility is maintained by silently accepting the -r option if it is given. The determination of the target default value is unchanged if a target is not specified on the command line.

  • Eliminates the need for the -l option for swremove and swconfig commands --

    The -l command line option is no longer needed to specify that the swremove and swconfig operation is to operate on link-installed software. The command will determine whether software is link-installed or physically installed and behave accordingly. For backward compatibility, if the -l option is given, the session will only operate on link-installed software.

    The swinstall command still requires the -l option to direct a linkinstall.

  • The kernel is rebuilt and the system is rebooted when removing a kernel fileset --

    Removing a kernel fileset will now, by default, cause a kernel rebuild and a system reboot. The autoreboot option now applies to the swremove command and must be set "true" to effect a kernel build.

    Compatibility with previous behavior is maintained by specifying the new swremove option auto_kernel_build=false. The option should be used only when removing a kernel fileset to delete files and not to remove functionality.

    The behavior when removing kernel software from a NFSD client system remains unchanged.

  • Add cdrom as a unique source type along with the existing directory and tape types --

    This provides an associated default source device when you select the cdrom source type.

  • Partial Internationalization (I18N) and Localization (L10N) -- You will see messages on the screen and in the SD log file displayed in the local language. This feature requires that the translated SD message catalog is available on the system and that the LANG environment variable in etc/rc.config.d has been changed to designate that local language. For example, to make SD agent and daemon log files display in Japanese, etc/rc.config.d/LANG must be LANG=ja_JP.SJIS or LANG=ja_JP.eucJP.

Enhancements and Defect Fixes

The order in which products and filesets are loaded has been changed. The changed behavior causes the load order to conform to the original specification, which was not always the case in 10.10.

A Session file, which is written when an SD command is operating on a single local target, will not have the local target name included in the target specification.

Partial file recovery is enhanced to cope with sessions that compressed or uncompressed files.

Impact

  • The complexity of the command line is slightly reduced by eliminating redundancy.

  • The complexity of the command line is reduced for the swremove and swconfig commands.

  • The need to rebuild the kernel manually and reboot after removing kernel functionality from a standalone system or a server is eliminated.

  • Use of CD-ROM as a source type is easier to specify.

  • The capability exists to have users see the messages and log files in a language other than American English.

  • Porting the Session file to be used by another system is easier because you no longer have to edit the target system specifier.

  • The restriction no longer applies that partial file recovery can only apply to sessions that did not change the form of the files: compressing uncompressed files when copying a depot, uncompressing files when copying or installing from a depot containing compressed files.

Performance

Performance of the command remains unchanged. The remove process will be affected by the following kernel build and reboot.

Magnetic tapes that were written using pre-10.20 commands might take longer to load. This is due to the 10.20 software expecting products to be in a sequence other than what is on the media.

Compatibility

Existing scripts are not impacted. Making the deletions in the kernel when removing functionality involves supplying a "preremove" control script with the kernel fileset.

Some command syntax that used to fail will now work.



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