10 – PURGE
Deletes all known file entries for images installed without the
/NOPURGE qualifier.
Requires the CMKRNL privilege. Also requires the SYSGBL privilege
to create system global sections and the PRMGBL privilege to
create permanent global sections.
Format
PURGE
10.1 – Parameters
None.
10.2 – Description
The PURGE command deletes all known file entries for images
installed without the /NOPURGE qualifier.
If a process is accessing global sections when the PURGE command
is entered, the global sections are deleted only after the
operation initiated by the process completes. However, once the
command is entered, no additional processes can access the global
sections because they are marked for deletion.
10.3 – Example
INSTALL> PURGE
The command in this example deletes all images except those
installed with the /NOPURGE qualifier. The image files remain
unaffected. Writable global sections are written back to disk
upon their removal as known images.
11 – REMOVE
Deletes a known image. The REMOVE command is identical to the
DELETE command.
Requires the CMKRNL privilege. Also requires the SYSGBL privilege
to create system global sections and the PRMGBL privilege to
create permanent global sections.
Format
REMOVE file-spec
11.1 – Parameter
file-spec
Names the file specification of a known image.
11.2 – Description
The REMOVE command deletes an entry from the known file list. The
image's entry on the known file list and any global sections
created for the image are deleted. The image file remains
unaffected. Writable global sections are written back to disk
upon their removal as known images.
If a process is accessing global sections when the REMOVE command
is entered, the global sections are deleted only after the
operation initiated by the process completes. However, once the
command is entered, no additional processes can access the global
sections because they are marked for deletion.
11.3 – Example
INSTALL> REMOVE GRPCOMM
The command in this example deletes the entry for the known
image GRPCOMM from the known image file list.
12 – REPLACE
Replaces a known image entry with another version of the image,
or with modified attributes. The REPLACE command is a synonym for
the DELETE command.
Requires the CMKRNL privilege. Also requires the SYSGBL privilege
to create system global sections and the PRMGBL privilege to
create permanent global sections.
Format
REPLACE file-spec
12.1 – Parameter
file-spec
Names the file specification of an image installed as a known
image.
12.2 – Qualifiers
12.2.1 /ACCOUNTING
/ACCOUNTING
/NOACCOUNTING (default)
Enables image-level accounting for selected images even if image
accounting is disabled on the local node (by using the DCL
command SET ACCOUNTING/DISABLE=IMAGE). When image accounting
is enabled on the local node, it logs all images, and the
/NOACCOUNTING qualifier has no effect.
12.2.2 /ARB_SUPPORT
/ARB_SUPPORT=keyword
On Alpha systems, overrides the system parameter ARB_SUPPORT for
this installed image.
The following table shows the keywords you can use with the /ARB_
SUPPORT qualifier:
Keyword Behavior
None The obsolete kernel data cells are not maintained by
the system. Fields are initialized to zero (or set to
invalid pointers) at process creation.
Clear The obsolete kernel data cells are cleared (or set
to invalid pointers) when the code would have set up
values for backward compatibility.
Read-only The obsolete cells are updated with corresponding
security information stored in the current Persona
Security Block (PSB) when a $PERSONA_ASSUME is
issued.
Full Data is moved from the obsolete cells to the
(default) currently active PSB on any security-based operation.
For more information about obsolete kernel cells, refer to the
ARB_SUPPORT system parameter in online help.
12.2.3 /AUTHPRIVILEGES
/AUTHPRIVILEGES[=(priv-name[,...])]
/NOAUTHPRIVILEGES
Installs the file as a known image installed with the authorized
privileges specified.
Usage Notes
o If a privileged image is not located on the system volume, the
image is implicitly installed /OPEN.
o The set of privileges for a privileged image can be empty. You
must, however, list each privilege every time you define or
redefine privileges.
o The /AUTHPRIVILEGES qualifier applies only to executable
images.
o You cannot specify this qualifier for an executable image
linked with the /TRACEBACK qualifier.
o You cannot assign privilege names with the /NOAUTHPRIVILEGES
qualifier.
Interaction of /PRIVILEGED and /AUTHPRIVILEGES Qualifiers
When you create a new entry, the privileges you assign are also
assigned for Authorized Privileges if you do not assign specific
authorized privileges with the /AUTHPRIVILEGES qualifier.
When you replace an image, any privileges assigned with the
/PRIVILEGED qualifier are not repeated as Authorized Privileges.
Also, if you use the REPLACE command with the /NOAUTHPRIVILEGES
qualifier, the Authorized Privileges become the same as the
Default Privileges (set using the /PRIVILEGED qualifier).
You can specify one or more of the privilege names described in
detail in an appendix to the OpenVMS Guide to System Security.
(ALL is the default.)
12.2.4 /EXECUTE_ONLY
/EXECUTE_ONLY
/NOEXECUTE_ONLY (default)
The /EXECUTE_ONLY qualifier is meaningful only to main programs.
It allows the image to activate shareable images to which the
user has execute access but no read access. All shareable images
referenced by the program must be installed, and OpenVMS RMS
uses trusted logical names, those created for use in executive or
kernel mode.
You cannot specify this qualifier for an executable image linked
with the /TRACEBACK qualifier.
12.2.5 /HEADER_RESIDENT
/HEADER_RESIDENT
/NOHEADER_RESIDENT
Installs the file as a known image with a permanently resident
header (native mode images only). An image installed header
resident is implicitly installed open.
12.2.6 /LOG
/LOG
/NOLOG (default)
Lists the newly created known file entry along with any
associated global sections created by the installation.
12.2.7 /OPEN
/OPEN
/NOOPEN
Installs the file as a permanently open known image.
12.2.8 /PRIVILEGED
/PRIVILEGED[=(priv-name[,...])]
/NOPRIVILEGED
Installs the file as a known image installed with the working
privileges specified.
Usage Notes
o If a privileged image is not located on the system volume, the
image is implicitly installed /OPEN.
o The set of privileges for a privileged image can be empty. You
must, however, list each privilege every time you define or
redefine privileges.
o The /PRIVILEGED qualifier applies only to executable images.
o You cannot specify this qualifier for an executable image
linked with the /TRACEBACK qualifier.
o You cannot assign privilege names with the /NOPRIVILEGED
qualifier.
You can specify one or more of the privilege names described in
detail in an appendix to the OpenVMS Guide to System Security.
(ALL is the default.)
12.2.9 /PROTECTED
/PROTECTED
/NOPROTECTED (default)
Installs the file as a known image that is protected from
user-mode and supervisor-mode write access. You can write into
the image only from executive or kernel mode. The /PROTECTED
qualifier together with the /SHARE qualifier are used to
implement user-written services, which become privileged
shareable images.
12.2.10 /PURGE
/PURGE (default)
/NOPURGE
Specifies that the image can be removed by a purge operation; if
you specify /NOPURGE, you can remove the image only by a delete
or remove operation.
12.2.11 /RESIDENT
/RESIDENT[=([NO]CODE,[NO]DATA)]
On Alpha systems, causes image code sections or read-only
data sections to be placed in the granularity hint regions and
compresses other image sections, which remain located in process
space. If you do not specify the /RESIDENT qualifier, neither
code nor data is installed resident. If you specify the /RESIDENT
qualifier without keyword arguments, code is installed resident,
and data is not installed resident.
The image must be linked using the /SECTION_BINDING=(CODE,DATA)
qualifier. An image installed with resident code or data is
implicitly installed /HEADER_RESIDENT and /SHARED.
12.2.12 /SHARED
/SHARED[=[NO]ADDRESS_DATA]
/NOSHARED
Installs the file as a shared known image and creates global
sections for the image sections that can be shared. An image
installed shared is implicitly installed open.
When you use the ADDRESS_DATA keyword with the /SHARED qualifier,
P1 space addresses are assigned for shareable images. With the
assigned addresses, the Install utility can determine the content
of an address data section when the image is installed rather
than when it is activated, reducing CPU and I/O time. A global
section is created to allow shared access to address data image
sections.
12.2.13 /WRITABLE
/WRITABLE
/NOWRITABLE
Installs the file as a writable known image as long as you also
specify the /SHARED qualifier. The /WRITABLE qualifier only
applies to images with image sections that are shareable and
writable. The /WRITABLE qualifier is automatically negated if the
/NOSHARED qualifier is specified.
12.3 – Example
INSTALL> REPLACE GRPCOMM /ACCOUNTING/NOOPEN
The command in this example replaces the known image GRPCOMM
with the latest version of the image, while enabling image
accounting and removing the OPEN attribute from this version.
The full name of the file specification is assumed to be
SYS$SYSTEM:GRPCOMM.EXE.