updadmin - Invokes the Update Installation Cleanup utility to remove or
archive backup files created by an Update Installation
The updadmin command invokes the Update Administration Cleanup utility,
which removes or archives the backup files that were created by an Update
Installation process. There are no flags or options associated with this
command. Running this utility is an optional step after performing an
Update Installation, but it is recommended if you want to recover disk
space being consumed by these backup files.
The backup files that are created by an Update Installation have these
+ *.PreMRG - A file saved to a .PreMRG extension is a backup copy of a
customized protected system file. System files in this category are
system files that are expected to be customized by users, for example,
/etc/passwd and /etc/hosts. If the automatic merge process fails to
merge the new version of the file with your customizations to the
file, your customizations must be merged manually into the new version
of the file when the Update Installation is complete. The *.PreMRG
version is a copy of the file as it existed before the Update Instal-
lation and only will be present if the automatic merge fails.
+ *.PreUPD - A file saved to a .PreUPD extension is a backup copy of a
customized unprotected system file as it existed before the Update
Installation. System files in this category are system files that are
not expected to be customized by users, for example,
/usr/bin/X11/netscape. If an unprotected system file is altered in any
way, customizations must be merged manually into the new version of
the system file when the Update Installation is complete.
When you are finished merging your customizations into the new version of
the file, these backup files no longer are needed, and they can be removed
The Update Installation Cleanup utility gives you the option to archive or
remove all backup files, or to select only the files you want. You are
prompted to enter an archive destination if you decide to archive the
The Update Installation Cleanup utility uses the tar(1) command to create
the archive, and the archive destination can be any archive destination
supported by the tar command, including tape devices. The default archive
location is the backup.tar file in the /var/adm/update/ directory. You can
use any file name you want, but if you want the file to have a .tar
extension, you must enter it as part of the file name. If the file name
exists, it is overwritten. You have the option to compress the archive file
with the gzip utility; if you do, a .gz extension is appended automati-
Unless you compress the archive file, the space savings realized by archiv-
ing to a tar file on disk will be only in moving the files from the /
(root), /usr, or /var file systems to the file system containing the
archive. To save disk space, archive the files to tape.
To archive to a tape device in tar format, enter archive destinations simi-
lar to the following:
+ /dev/tape/tape0c - archives to a default density rewind tape (with
+ /dev/ntape/tape0_d0 - archives to a nonrewind tape device 0. The _d0
suffix specifies the density. If you are archiving to a nonrewind tape
device, it is recommended to use a brand new or erasable tape.
On systems capable of graphical display, the updadmin command invokes a
graphical user interface to the Update Installation Cleanup utility. On
systems that are not capable of graphical displays, a text-based, menu-
driven user interface is invoked. The Update Installation Cleanup utility
is also available as a task from the SysMan Menu.
To view the online help for the Update Installation Cleanup utility without
running the utility, use the following command:
# /usr/dt/bin/dthelpview -h /usr/dt/appconfig/help/C/updadmin.sdl
You must have root privileges to use the Update Installation Cleanup util-
If your system has not been updated to the next version of the operating
system by the Update Installation process, the Update Installation Cleanup
utility cannot be invoked.
Update Administration Cleanup utility
Contains the online help for the Update Administration Cleanup utility.
Default location of the archive file
Commands: tar(1), gzip(1), sysman(8), installupdate(8)