Harald Hoyer píše v Út 03. 11. 2009 v 11:30 +0100:
> > I have solved the problem with filesystem modules with an introduction
> > of new command line/config file parameter. It controls the list of
> > filesystem modules that will be included when running in generic mode.
> > See the attached patch for details.
> >
> >> limit the list of drivers for block devices would be also nice. Is there
> >> a way to control what kernel modules get loaded into the ramdisk, like
> >> some black- or whitelist?
> >
> >
> > Dan
> >
>
> s/kenrel/kernel/
>
> s/modules to be loaded into generic initramfs/modules to be included in the
> generic initramfs/
updated and joined into 1 commit with better description
Dan
>From e67c382bd883ef6b567933b4800c135fd62c8244 Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Dan=20Hor=C3=A1k?= <dan@xxxxxxxx>
Date: Tue, 3 Nov 2009 11:50:55 +0100
Subject: [PATCH] control filesystems included in the generic initramfs
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New "filesystems" command line/config file option is added with the ability to
control the list of kernel filesystem modules that are included in the generic
initramfs.
Signed-off-by: Dan Horák <dan@xxxxxxxx>
---
dracut | 7 ++++++-
dracut.8 | 3 +++
dracut.conf | 3 +++
modules.d/90kernel-modules/installkernel | 10 +++++++---
4 files changed, 19 insertions(+), 4 deletions(-)
diff --git a/dracut b/dracut
index 7b9304f..1954177 100755
--- a/dracut
+++ b/dracut
@@ -37,6 +37,9 @@ Creates initial ramdisk images for preloading modules
exclusively include in the initramfs.
--add-drivers [LIST] Specify a space-separated list of kernel
modules to add to the initramfs.
+ --filesystems [LIST] Specify a space-separated list of kernel filesystem
+ modules to exclusively include in the generic
+ initramfs.
-k, --kmoddir [DIR] Specify the directory, where to look for kernel
modules
--fwdir [DIR] Specify additional directories, where to look for
@@ -76,6 +79,7 @@ while (($# > 0)); do
-a|--add) add_dracutmodules_l="$2"; shift;;
-d|--drivers) drivers_l="$2"; shift;;
--add-drivers) add_drivers_l="$2"; shift;;
+ --filesystems) filesystems_l="$2"; shift;;
-k|--kmoddir) drivers_dir_l="$2"; shift;;
--fwdir) fw_dir_l="$2"; shift;;
--kernel-only) kernel_only="yes"; nokernel="no";;
@@ -127,6 +131,7 @@ fi
[[ $add_dracutmodules_l ]] && add_dracutmodules="$add_dracutmodules $add_dracutmodules_l"
[[ $drivers_l ]] && drivers=$drivers_l
[[ $add_drivers_l ]] && add_drivers=$add_drivers_l
+[[ $filesystems_l ]] && filesystems=$filesystems_l
[[ $drivers_dir_l ]] && drivers_dir=$drivers_dir_l
[[ $fw_dir_l ]] && fw_dir=$fw_dir_l
[[ $do_strip_l ]] && do_strip=$do_strip_l
@@ -180,7 +185,7 @@ chmod 755 "$initdir"
export initdir hookdirs dracutbasedir dracutmodules drivers \
fw_dir drivers_dir debug beverbose no_kernel kernel_only \
- add_drivers mdadmconf lvmconf
+ add_drivers mdadmconf lvmconf filesystems
if [[ $kernel_only != yes ]]; then
# Create some directory structure first
diff --git a/dracut.8 b/dracut.8
index 309d0dd..6dc90ad 100644
--- a/dracut.8
+++ b/dracut.8
@@ -32,6 +32,9 @@ specify a space-separated list of kernel modules to exclusively include in the i
.BR \-\-add-drivers " \fILIST\fR"
specify a space-separated list of kernel modules to add to the initramfs.
.TP
+.BR \-\-filesystems " \fILIST\fR"
+specify a space-separated list of kernel filesystem modules to exclusively include in the generic initramfs.
+.TP
.BR \-k ", " \-\-kmoddir " \fI{DIR}\fR
specify the directory, where to look for kernel modules
.TP
diff --git a/dracut.conf b/dracut.conf
index 2ebeeda..8c8db21 100644
--- a/dracut.conf
+++ b/dracut.conf
@@ -9,6 +9,9 @@
# additional kernel modules to the default
#add_drivers=""
+# list of kernel filesystem modules to be included in the generic initramfs
+#filesystems=""
+
# build initrd only to boot current hardware
#hostonly="-h"
#
diff --git a/modules.d/90kernel-modules/installkernel b/modules.d/90kernel-modules/installkernel
index b5e4c93..c739bfc 100755
--- a/modules.d/90kernel-modules/installkernel
+++ b/modules.d/90kernel-modules/installkernel
@@ -6,16 +6,20 @@ if [[ -z $drivers ]]; then
nm -uPA "$1" | egrep -q "$blockfuncs"
}
instmods pcmcia sd_mod $(filter_kernel_modules block_module_test) "=drivers/pcmcia" =ide
- # if not on hostonly mode, install all known filesystems.
+ # if not on hostonly mode, install all known filesystems if the required list is not set via the filesystems variable
if [[ $hostonly = '' ]]; then
- instmods '=fs'
+ if [[ -z $filesystems ]]; then
+ instmods '=fs'
+ else
+ instmods $filesystems
+ fi
else
instmods $(get_fs_type "/dev/block/$(find_root_block_device)")
fi
# hardcoded list of exceptions
rm -fr ${initdir}/lib/modules/*/kernel/fs/ocfs2
else
- instmods $drivers
+ instmods $drivers $filesystems
fi
[[ $add_drivers ]] && instmods $add_drivers
--
1.6.3.3
