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NAMEkconfig — manage kernel configurations SYNOPSISkconfig
-DSw kconfig
[-av]
[-P
fields]
[config]... kconfig
-b behavior kconfig
-c
[-C
comment]
src
dest kconfig
-d
[-C
comment]
config kconfig
-e
[-C
comment]
[config]
filename kconfig
-H
[-C
comment] kconfig
-i
[-C
comment]
[-b
behavior]
[-fhV]
[config]
filename kconfig
-l
[-C
comment]
[-b
behavior]
[-f]
config kconfig
-n
[-C
comment]
[-b
behavior]
[-f]
config kconfig
-r
[-C
comment]
old
new kconfig
-s
[-C
comment]
[-f]
config kconfig
-t
[-C
comment]
config
title DESCRIPTIONkconfig
is the administrative command for HP-UX kernel configurations.
In the first form,
kconfig
will give summary information about the currently running kernel configuration.
In the second form,
kconfig
will give information about saved kernel configurations.
If configuration names are listed on the command line, the output
is restricted to those configurations.
In the other forms,
kconfig
supports various administrative tasks on kernel configurations.
See
kconfig(5)
for more information about kernel configurations. Only users with appropriate privileges can specify the
-b,
-c,
-d,
-H,
-i,
-l,
-n,
-r,
-s,
or
-t
options. Options- -a
Includes detailed information about each kernel configuration in the
output listing (see
-v
below). In addition, the information about each configuration
will be followed by the outputs of: kcmodule -a -v kctune -v for the configuration, so as to include all configuration data.
Note: if additional configuration data are available in future
releases of HP-UX, they will be included as well. - -b behavior
Specifies whether or not to update the automatic backup
configuration before the requested change. Also specifies the default
backup behavior for future changes. See
kconfig(5)
for a description of the various backup
behaviors. For compatibility with old releases,
-B
is accepted as an alias for
-b yes,
and
-K
is accepted as an alias for
-b no.
These aliases will be removed in a future release. - -c src dest
kconfig
will make a copy of the saved kernel configuration named
src.
The copy will be named
dest.
dest
must not already exist. - -C comment
The specified
comment
will be included in the kernel configuration log file entry made
for this invocation of
kconfig.
For more details on the kernel configuration log file, see
kclog(1M).
Note that it will usually be necessary to quote the
comment
in order to avoid interpretation by the shell. - -d config
kconfig
will delete the saved kernel configuration named
config,
and any files associated with it. Some files are shared between
saved configurations; these files are not deleted until all of the
saved configurations using them have been deleted. - -D
kconfig
will display all changes to the current kernel configuration that are
being held for next boot. In other words, it will execute kcmodule -D kctune -D If any additional kernel configuration data become available in
future HP-UX releases, changes to them will be included as well.
The return value of
kconfig
will be 1 if there are any such changes; see
the
RETURN VALUE
section below.
Not valid in combination with any other flags. - -e [config] filename
kconfig
will export the saved kernel configuration named
config
to a system file named
filename,
replacing the file if it already exists. If no
config
is specified, the currently running kernel configuration will be
exported, including any changes to it that are being held for next
boot. The exported file can be later imported using
kconfig -i
on this system or any other system with compatible HP-UX software.
See
kconfig(5)
and
system(4)
for more information about system files. - -f
Tells
kconfig
to proceed with the requested operation despite its potentially
dangerous nature.
When
kconfig
is asked to make a change that could result in unintended data
loss, it will ask for confirmation if being run interactively,
or print an error message and stop otherwise. The change can be
made, and the interactive confirmation bypassed, by running the
kconfig
command with the
-f
option. - -h
Tells
kconfig
to hold the requested changes until the next boot, even if they
could be applied immediately. - -H
Discards all changes being held pending for next boot. The currently
running configuration will be used at next boot. - -i [config] filename
kconfig
will import a kernel configuration from the system file named
filename,
which may have been created by an invocation of
kconfig -e
(on any system). If
config
is specified, the resulting kernel configuration will be saved under
that name. Otherwise, the resulting kernel configuration will be
applied to the currently running system, overwriting any changes
that were being held for next boot. The new configuration
changes will be held until next boot if they cannot be applied
immediately, or if the
-h
option is specified. When duplicate entries for particular tunable or module are
found in the system file, only the last entry found is used. A kernel configuration cannot be imported successfully unless the
running system has all of the necessary kernel software installed.
If the importing system is missing kernel software components that
were in use on the exporting system, the import will fail.
See the
-V
option below. - -l config
kconfig
will load the saved kernel configuration named
config,
overwriting any changes that were being held for next boot.
The state of the currently running system will be changed to match the
saved configuration. If the changes cannot be applied without a
reboot, they will be marked to take effect at next boot. - -n config
The saved kernel configuration named
config
will be marked for use at next boot. Any changes to the currently
running configuration that are being held for next boot are
discarded. - -P fields
Tells
kconfig
to include only the specified
fields
in its output, and to print them in the machine-readable form described in
kconfig(5).
See the
Developers Note
below.
Not valid in combination with
-v. - -r old new
The saved kernel configuration named
old
will be renamed
new.
The name
new
must not already be in use. - -s config
kconfig
will save the running kernel configuration under the name
config. - -S
kconfig
will display all settings of the currently running configuration
that are not at their default value.
In other words, it will execute kcmodule -S kctune -S If any additional kernel configuration data become available in
future HP-UX releases, settings of them will be included as well.
Not valid in combination with any other flags. - -t config title
kconfig
will change the title of the saved kernel configuration named
config
to the given
title.
title
will usually need to be quoted to avoid interpretation by the shell. - -v
Includes verbose information about each saved kernel configuration in
the output listing. The information includes the name and title of
the configuration, the pathname of the associated kernel, the creation
date and time, etc. - -V
Requests strict version checking. With this option, an import operation
will only succeed if the kernel components installed on the importing
system are the exact same versions as those installed on the exporting
system. - -w
Prints information about the original source of the currently running
configuration. Specifically, it describes the source of the most
recent complete kernel configuration operation (load, boot, or import).
Also, if a saved configuration is marked for use at next boot, this
option will identify it. Note that this source information does not imply that the currently
running configuration matches its original source.
kconfig -w
may say that the currently running configuration was loaded from
the saved configuration
foo,
but that does not mean that the two are identical. Either one may
have been changed since the load occurred.
Developer's NoteThe layout and content of
kconfig's
output may change without notice, except when
-P fields
is specified.
Scripts or applications that need to parse the output of
kconfig
are expected to use the
-P fields
option. See
kconfig(5)
for details. The fields supported in a
kconfig
request are:
- name
The name of the saved kernel configuration. - title
The title for the saved kernel configuration. If the
configuration does not have a title, this field will
be empty. - savetime
The date and time of the last save
(kconfig -s)
of the configuration, in the format returned by
ctime(). - createtime
The date and time when the configuration was created, in the format returned by
ctime(). - createuser
The username of the user who created the configuration, if available. - modifytime
The date and time of the last change to the saved configuration, in
the format returned by
ctime(). - modifyuser
The username of the user who made the last change to the saved configuration,
if available. - kernel
The pathname of the corresponding kernel directory.
The special field name
ALL
may be specified to indicate that all defined fields should be
included in the output. The output may include fields not listed
in this man page. The fields will be listed in unspecified order. Additional fields may be added in future releases or in patches. RETURN VALUEkconfig
returns one of the following values:
- 0
The requested operation was successful. If
-D
was specified, this return value indicates that there are no
configuration changes being held for next boot. - 1
The requested operation could not be performed immediately as requested,
and is being held pending until the next boot. If
-D
was specified, this return value indicates that there are
configuration changes being held for next boot. - 2
The requested operation failed. A diagnostic message is printed.
EXAMPLESTo save the current kernel configuration to "myconfig":
$ kconfig -s myconfig
To delete the saved configuration "useless":
$ kconfig -d useless
To export the current kernel configuration:
$ kconfig -e /tmp/myconfig.system
To import a kernel configuration:
$ kconfig -i /tmp/myconfig.system
To rename a configuration:
$ kconfig -r myconfig savedconfig
To load the "nighttime" configuration and apply it immediately:
$ kconfig -l nighttime
To use the "approved" configuration at next boot:
$ kconfig -n approved
To discard changes being held pending for next boot:
$ kconfig -H
To add a description to a configuration:
$ kconfig -t approved "Changes approved by management"
To get a list of all saved configurations:
$ kconfig
To get details of a saved configuration:
$ kconfig -v myconfig |
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