KERNEL-IMG.CONF(5) Debian GNU/Linux manual KERNEL-IMG.CONF(5)
NAME
kernel-img.conf - site wide configuration file for kernel image pack-
ages
SYNOPSIS
/etc/kernel-img.conf
DESCRIPTION
The file /etc/kernel-img.conf is a simple file looked at by the kernel
image post installation process to allow local options for handling
some aspects of the installation, overriding the defaults built into
the image itself.
The format of the file is a simple VAR = VALUE pair. Boolean values may
be specified as Yes, True, 1, and No, False, 0, and are case insensi-
tive. This file is automatically created by the installation script in
certain circumstances.
At the moment, the user modifiable variables supported are:
postinst_hook
DEPRECATED: Set this variable to a script to be executed during
installation. The path can be a relative path if the script
lives in a safe path -- that is, if it lives in /bin, /sbin,
/usr/bin, or /usr/sbin, or must be an absolute path instead.
Before calling this script, the env variable STEM shall be set
to the value of the --stem argument (or the default value,
linux), and KERNEL_PACKAGE_VERSION shall be set to the version
of the kernel-package that created the package. This script
shall be called with two arguments, the first being the version
of the kernel image, and the second argument being the location
of the kernel image itself. Errors in the script shall cause the
postinst to fail. Since debconf is in use before the script is
called, this script should issue no diagnostic messages to std-
out -- while the postinst does call db_stop , debconf does not
restore stdout, so messages to stdout disappear. An example
script for grub users is present in /usr/share/doc/kernel-pack-
age/ directory. This script is run after the scripts in
/etc/kernel/postinst.d directory.
postrm_hook
DEPRECATED: Set this variable to a script to be executed in the
postrm (that is, after the image has been removed) after all the
remove actions have been performed. The path can be a relative
path if the script lives in a safe path -- that is, if it lives
in /bin, /sbin, /usr/bin, or /usr/sbin, or must be an absolute
path instead. The environment variable KERNEL_PACKAGE_VERSION
shall be set to the version of the kernel-package that created
the package. This script shall be called with two arguments, the
first being the version of the kernel image, and the second
argument being the location of the kernel image itself. Errors
in the script shall produce a warning message, but shall be oth-
erwise ignored. Since debconf is in use before the script is
called, this script should issue no diagnostic messages to std-
out -- while the postinst does call db_stop , debconf does not
restore stdout, so messages to stdout disappear. This script is
run after the scripts in /etc/kernel/postrm.d directory.
preinst_hook
DEPRECATED: Set this variable to a script to be executed before
the package is unpacked, and can be used to put in additional
checks. The path can be a relative path if the script lives in a
safe path -- that is, if it lives in /bin, /sbin, /usr/bin, or
/usr/sbin, or must be an absolute path instead. The environment
variable KERNEL_PACKAGE_VERSION shall be set to the version of
the kernel-package that created the package. This script shall
be called with two arguments, the first being the version of the
kernel image, and the second argument being the location of the
kernel image itself. This script is run after the scripts in
/etc/kernel/preinst.d directory.
prerm_hook
DEPRECATED: Set this variable to a script to be executed before
the package files are removed (so any added files may be
removed) . The path can be a relative path if the script lives
in a safe path -- that is, if it lives in /bin, /sbin, /usr/bin,
or /usr/sbin, or must be an absolute path instead. The environ-
ment variable KERNEL_PACKAGE_VERSION shall be set to the version
of the kernel-package that created the package. This script
shall be called with two arguments, the first being the version
of the kernel image, and the second argument being the location
of the kernel image itself. Errors in the script shall cause the
prerm to fail. Since debconf is in use before the script is
called, this script should issue no diagnostic messages to std-
out -- while the postinst does call db_stop , debconf does not
restore stdout, so messages to stdout disappear. This script is
run after the scripts in /etc/kernel/prerm.d directory.
src_postinst_hook
DEPRECATED: Unlike the other hook variables, this is meant for a
script run during the post inst of a docs, headers or a source
package. Using this hook for the headers package is now being
deprecated, at some point the headers post install script shall
only run the header_postinst_hook. The path can be a relative
path if the script lives in a safe path -- that is, if it lives
in /bin, /sbin, /usr/bin, or /usr/sbin, or must be an absolute
path instead. The environment variable KERNEL_PACKAGE_VERSION
shall be set to the version of the kernel-package that created
the package. This script shall be called with two arguments,
the first being the name of the package being installed (could
be kernel source or headers), and the second argument being the
version of the package being installed. Errors in the script
shall cause the postinst to fail. This script is run after the
scripts in /etc/kernel/src_postinst.d directory.
header_postinst_hook
DEPRECATED: Unlike the other hook variables, this is meant for a
script run during the post inst of a headers package only. The
path can be a relative path if the script lives in a safe path
-- that is, if it lives in /bin, /sbin, /usr/bin, or /usr/sbin,
or must be an absolute path instead. The environment variable
KERNEL_PACKAGE_VERSION shall be set to the version of the ker-
nel-package that created the package. This script shall be
called with two arguments, the first being the name of the pack-
age being installed, and the second argument being the version
of the package being installed. Errors in the script shall cause
the postinst to fail. This script is run after the scripts in
/etc/kernel/header_postinst.d directory.
clobber_modules
If set, the preinst shall silently try to move /lib/modules/ver-
sion out of the way if it is the same version as the image being
installed. Use at your own risk. This variable is unset by
default.
warn_reboot
This variable can be used to turn off the warning given when
installing a kernel image which is the same version as the cur-
rently running version. If the modules list is changed, the mod-
ules dependencies may have been changed, and the modules for the
new kernel may not run correctly on the running kernel if the
kernel ABI has changed in the meanwhile. It is a good idea to
reboot, and this is a note to remind you. If you know what you
are doing, you can set this variable to no. This variable is set
by default.
relink_build_link
This option manipulates the build link created by recent ker-
nels. If the link is a dangling link, and if a the corresponding
kernel headers appear to have been installed on the system, a
new symlink shall be created to point to them. The default is to
relink the build link (YES).
force_build_link
This option manipulates the build link created by recent ker-
nels. If the link is a dangling link, a new symlink shall be
created to point to kernel headers data in /usr/src, whether
they have been installed or not. The default is unset, we don't
create potentially dangling symlinks by default.
relink_src_link
This option manipulates the source link created by recent ker-
nels. If the link is a dangling link it is deleted at install
time. The default is to relink (delete) the source link (YES).
silent_modules
This option has been put in for the people who are vastly irri-
tated on being warned about preexisting modules directory
/lib/modules/$version That directory may belong to an old or
defunct kernel image package, in which case problems may arise
with leftover modules in that directory tree, or the directory
may legitimately exist due to a independent modules package
being installed for this kernel version that has already been
unpacked. In this latter case the existence of the directory is
benign. If you set this variable, you shall no longer be given
a chance to abort if a preexisting modules directory /lib/mod-
ules/$version is detected. This is unset be default.
ignore_depmod_err
If set, does not prompt to continue after a depmod problem in
the postinstall script. This facilitates automated installs,
though it may mask a problem with the kernel image. A diagnostic
is still issued. This is unset be default.
FILES
The file described here is /etc/kernel-img.conf.
SEE ALSO
make-kpkg(1), kernel-pkg.conf(5), make(1), The GNU Make manual.
BUGS
There are no bugs. Any resemblance thereof is delirium. Really.
AUTHOR
This manual page was written by Manoj Srivastava <srivasta@debian.org>,
for the Debian GNU/Linux system.
Debian Aug 20 2009 KERNEL-IMG.CONF(5)
Generated by dwww version 1.11.3 on Mon May 20 15:55:09 CEST 2013.