From 2b3e22d60246e7c8bfa96a6d7504fb0bfa67e641 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 29 Nov 2013 13:13:50 +0100
Subject: [PATCH] mkinitrd-suse: Add SUSE compability wrapper for dracut
SUSE has its own mkinitrd system. As the arguments clash
with the dracut-provided mkinitrd script I've added a new
mkinitrd-suse.sh wrapper.
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
mkinitrd-suse.sh | 354 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 354 insertions(+)
create mode 100755 mkinitrd-suse.sh
diff --git a/mkinitrd-suse.sh b/mkinitrd-suse.sh
new file mode 100755
index 0000000..d20270a
--- /dev/null
+++ b/mkinitrd-suse.sh
@@ -0,0 +1,354 @@
+#!/bin/bash --norc
+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# ex: ts=8 sw=4 sts=4 et filetype=sh
+#
+# mkinitrd compability wrapper for SUSE.
+#
+# Copyright (c) 2013 SUSE Linux Products GmbH. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+boot_dir="/boot"
+quiet=0
+host_only=1
+force=0
+logfile=/var/log/YaST2/mkinitrd.log
+dracut_cmd=dracut
+
+error() { echo "$@" >&2; }
+
+usage () {
+ [[ $1 = '-n' ]] && cmd=echo || cmd=error
+
+ $cmd "usage: ${0##*/} [options]"
+ $cmd ""
+ $cmd " Create initial ramdisk images that contain all kernel modules needed"
+ $cmd " in the early boot process, before the root file system becomes"
+ $cmd " available."
+ $cmd " This usually includes SCSI and/or RAID modules, a file system module"
+ $cmd " for the root file system, or a network interface driver module for dhcp."
+ $cmd ""
+ $cmd " options:"
+ $cmd " -f \"feature list\" Features to be enabled when generating initrd."
+ $cmd " Available features are:"
+ $cmd " iscsi, md, multipath, lvm, lvm2,"
+ $cmd " ifup, fcoe, dcbd"
+ $cmd " -k \"kernel list\" List of kernel images for which initrd files are"
+ $cmd " created. Defaults to all kernels found in /boot."
+ $cmd " -i \"initrd list\" List of file names for the initrd; position have"
+ $cmd " match to \"kernel list\". Defaults to all kernels"
+ $cmd " found in /boot."
+ $cmd " -b boot_dir Boot directory. Defaults to /boot."
+ $cmd " -t tmp_dir Temporary directory. Defaults to /var/tmp."
+ $cmd " -M map System.map file to use."
+ $cmd " -A Create a so called \"monster initrd\" which"
+ $cmd " includes all features and modules possible."
+ $cmd " -B Do not update bootloader configuration."
+ $cmd " -v Verbose mode."
+ $cmd " -L Disable logging."
+ $cmd " -h This help screen."
+ $cmd " -m \"module list\" Modules to include in initrd. Defaults to the"
+ $cmd " INITRD_MODULES variable in /etc/sysconfig/kernel"
+ $cmd " -u \"DomU module list\" Modules to include in initrd. Defaults to the"
+ $cmd " DOMU_INITRD_MODULES variable in"
+ $cmd " /etc/sysconfig/kernel."
+ $cmd " -d root_device Root device. Defaults to the device from"
+ $cmd " which / is mounted. Overrides the rootdev"
+ $cmd " enviroment variable if set."
+ $cmd " -j device Journal device"
+ $cmd " -D interface Run dhcp on the specified interface."
+ $cmd " -I interface Configure the specified interface statically."
+ $cmd " -a acpi_dsdt Attach compiled ACPI DSDT (Differentiated"
+ $cmd " System Description Table) to initrd. This"
+ $cmd " replaces the DSDT of the BIOS. Defaults to"
+ $cmd " the ACPI_DSDT variable in /etc/sysconfig/kernel."
+ $cmd " -s size Add splash animation and bootscreen to initrd."
+
+ [[ $1 = '-n' ]] && exit 0
+ exit 1
+}
+
+# Little helper function for reading args from the commandline.
+# it automatically handles -a b and -a=b variants, and returns 1 if
+# we need to shift $3.
+read_arg() {
+ # $1 = arg name
+ # $2 = arg value
+ # $3 = arg parameter
+ param="$1"
+ local rematch='^[^=]*=(.*)$' result
+ if [[ $2 =~ $rematch ]]; then
+ read "$param" <<< "${BASH_REMATCH[1]}"
+ else
+ for ((i=3; $i <= $#; i++)); do
+ # Only read next arg if it not an arg itself.
+ if [[ ${@:$i:1} = -* ]];then
+ break
+ fi
+ result="$result ${@:$i:1}"
+ # There is no way to shift our callers args, so
+ # return "no of args" to indicate they should do it instead.
+ done
+ read "$1" <<< "$result"
+ return $(($i - 3))
+ fi
+}
+
+# Helper functions to calculate ipconfig command line
+calc_netmask() {
+ local prefix=$1
+
+ [ -z "$prefix" ] && return
+ mask=$(echo "(2 ^ 32) - (2 ^ $prefix)" | bc -l)
+ byte1=$(( mask >> 24 ))
+ byte2=$(( mask >> 16 ))
+ byte3=$(( mask >> 8 ))
+ byte4=$(( mask & 0xff ))
+ netmask=$(printf "%d.%d.%d.%d" $(( byte1 & 0xff )) $(( byte2 & 0xff )) $(( byte3 & 0xff )) $byte4);
+
+ echo $netmask
+}
+
+ipconfig() {
+ local interface=$1
+ local iplink macaddr broadcast gateway ipaddr prefix netmask
+
+ iplink=$(ip addr show dev $interface | sed -n 's/ *inet \(.*\) brd.*/\1/p')
+ macaddr=$(ip addr show dev $interface | sed -n 's/.*ether \(.*\) brd.*/\1/p')
+ broadcast=$(ip addr show dev $interface | sed -n 's/.*brd \(.*\) scope.*/\1/p')
+ gateway=$(ip route show dev $interface | sed -n 's/default via \([0-9\.]*\).*/\1/p')
+
+ ipaddr=${iplink%%/*}
+ prefix=${iplink##*/}
+ netmask=$(calc_netmask $prefix)
+
+ echo "${ipaddr}:${serveraddr}:${gateway}:${netmask}:${hostname}:${interface}:none::${macaddr}"
+}
+
+is_xen_kernel() {
+ local kversion=$1
+ local root_dir=$2
+ local cfg
+
+ for cfg in ${root_dir}/boot/config-$kversion $root_dir/lib/modules/$kversion/build/.config
+ do
+ test -r $cfg || continue
+ grep -q "^CONFIG_XEN=y\$" $cfg
+ return
+ done
+ test $kversion != "${kversion%-xen*}"
+ return
+}
+
+
+# Taken over from SUSE mkinitrd
+default_kernel_images() {
+ local regex kernel_image kernel_version version_version initrd_image
+ local qf='%{NAME}-%{VERSION}-%{RELEASE}\n'
+
+ case "$(uname -m)" in
+ s390|s390x)
+ regex='image'
+ ;;
+ ppc|ppc64)
+ regex='vmlinux'
+ ;;
+ i386|x86_64)
+ regex='vmlinuz'
+ ;;
+ arm*)
+ regex='[uz]Image'
+ ;;
+ aarch64)
+ regex='Image'
+ ;;
+ *) regex='vmlinu.'
+ ;;
+ esac
+
+ kernel_images=""
+ initrd_images=""
+ for kernel_image in $(ls $boot_dir \
+ | sed -ne "\|^$regex\(-[0-9.]\+-[0-9]\+-[a-z0-9]\+$\)\?|p" \
+ | grep -v kdump$ ) ; do
+
+ # Note that we cannot check the RPM database here -- this
+ # script is itself called from within the binary kernel
+ # packages, and rpm does not allow recursive calls.
+
+ [ -L "$boot_dir/$kernel_image" ] && continue
+ [ "${kernel_image%%.gz}" != "$kernel_image" ] && continue
+ kernel_version=$(/usr/bin/get_kernel_version \
+ $boot_dir/$kernel_image 2> /dev/null)
+ initrd_image=$(echo $kernel_image | sed -e "s|${regex}|initrd|")
+ if [ "$kernel_image" != "$initrd_image" -a \
+ -n "$kernel_version" -a \
+ -d "/lib/modules/$kernel_version" ]; then
+ kernel_images="$kernel_images $boot_dir/$kernel_image"
+ initrd_images="$initrd_images $boot_dir/$initrd_image"
+ fi
+ done
+ for kernel_image in $kernel_images;do
+ kernels="$kernels ${kernel_image#*-}"
+ done
+ for initrd_image in $initrd_images;do
+ targets="$targets $initrd_image"
+ done
+ host_only=1
+ force=1
+}
+
+while (($# > 0)); do
+ case ${1%%=*} in
+ -f) read_arg feature_list "$@" || shift $?
+ # Could be several features
+ ;;
+ -k) # Would be nice to get a list of images here
+ read_arg kernel_images "$@" || shift $?
+ for kernel_image in $kernel_images;do
+ kernels="$kernels ${kernel_image#*-}"
+ done
+ host_only=1
+ force=1
+ ;;
+ -i) read_arg initrd_images "$@" || shift $?
+ for initrd_image in $initrd_images;do
+ # Check if the initrd_image contains a path.
+ # if not, then add the default boot_dir
+ dname=`dirname $initrd_image`
+ if [ "$dname" == "." ]; then
+ targets="$targets $boot_dir/$initrd_image";
+ else
+ targets="$targets $initrd_image";
+ fi
+ done
+ ;;
+ -b) read_arg boot_dir "$@" || shift $?
+ if [ ! -d $boot_dir ];then
+ error "Boot directory $boot_dir does not exist"
+ exit 1
+ fi
+ ;;
+ -t) read_arg tmp_dir "$@" || shift $?
+ dracut_args="${dracut_args} --tmpdir $tmp_dir"
+ ;;
+ -M) read_arg map_file "$@" || shift $?
+ ;;
+ -A) host_only=0;;
+ -B) skip_update_bootloader=1;;
+ -v|--verbose) dracut_args="${dracut_args} -v";;
+ -L) logfile=;;
+ -h|--help) usage -n;;
+ -m) read_arg module_list "$@" || shift $? ;;
+ -u) read_arg domu_module_list "$@" || shift $?
+ echo "mkinitrd: DomU modules not yet supported" ;;
+ -d) read_arg rootfs "$@" || shift $?
+ dracut_args="${dracut_args} --filesystems $rootfs" ;;
+ -D) read_arg dhcp_if "$@" || shift $?
+ dracut_cmdline="${dracut_cmdline} ip=${dhcp_if}:dhcp"
+ ;;
+ -I) read_arg static_if "$@" || shift $?
+ dracut_cmdline="${dracut_cmdline} ip=$(ipconfig $static_if)":
+ ;;
+ -a) read_arg acpi_dsdt "$@" || shift $?
+ echo "mkinitrd: custom DSDT not yet supported"
+ exit 1
+ ;;
+ -s) read_arg boot_splash "$@" || shift $?
+ echo "mkinitrd: boot splash not yet supported"
+ exit 1
+ ;;
+ -V) echo "mkinitrd: vendor scipts are no longer supported"
+ exit 1;;
+ --dracut)
+ read_arg dracut_cmd "$@" || shift $? ;;
+ --version|-R)
+ echo "mkinitrd: dracut compatibility wrapper"
+ exit 0;;
+ --force) force=1;;
+ --quiet|-q) quiet=1;;
+ *) if [[ ! $targets ]]; then
+ targets=$1
+ elif [[ ! $kernels ]]; then
+ kernels=$1
+ else
+ usage
+ fi;;
+ esac
+ shift
+done
+
+[[ $targets && $kernels ]] || default_kernel_images
+[[ $targets && $kernels ]] || (error "No kernel found in $boot_dir" && usage)
+
+# We can have several targets/kernels, transform the list to an array
+targets=( $targets )
+[[ $kernels ]] && kernels=( $kernels )
+
+[[ $logfile ]] && dracut_args="${dracut_args} --logfile $logfile"
+[[ $host_only == 1 ]] && dracut_args="${dracut_args} --hostonly"
+[[ $force == 1 ]] && dracut_args="${dracut_args} --force"
+[[ $dracut_cmdline ]] && dracut_args="${dracut_args} --kernel-cmdline ${dracut_cmdline}"
+[ -z "$(type -p update-bootloader)" ] && skip_update_bootloader=1
+
+# Update defaults from /etc/sysconfig/kernel
+if [ -f /etc/sysconfig/kernel ] ; then
+ . /etc/sysconfig/kernel
+fi
+[[ $module_list ]] || module_list="${INITRD_MODULES}"
+basicmodules="$basicmodules ${module_list}"
+[[ $domu_module_list ]] || domu_module_list="${DOMU_INITRD_MODULES}"
+[[ $acpi_dsdt ]] || acpi_dsdt="${ACPI_DSDT}"
+
+echo "Creating: target|kernel|dracut args|basicmodules "
+for ((i=0 ; $i<${#targets[@]} ; i++)); do
+
+ if [[ $img_vers ]];then
+ target="${targets[$i]}-${kernels[$i]}"
+ else
+ target="${targets[$i]}"
+ fi
+ kernel="${kernels[$i]}"
+
+ # Duplicate code: No way found how to redirect output based on $quiet
+ if [[ $quiet == 1 ]];then
+ echo "$target|$kernel|$dracut_args|$basicmodules"
+ if is_xen_kernel $kernel $rootfs ; then
+ basicmodules="$basicmodules ${domu_module_list}"
+ fi
+ if [[ $basicmodules ]]; then
+ $dracut_cmd $dracut_args --add-drivers "$basicmodules" "$target" \
+ "$kernel" &>/dev/null
+ else
+ $dracut_cmd $dracut_args "$target" "$kernel" &>/dev/null
+ fi
+ else
+ if is_xen_kernel $kernel $rootfs ; then
+ basicmodules="$basicmodules ${domu_module_list}"
+ fi
+ if [[ $basicmodules ]]; then
+ $dracut_cmd $dracut_args --add-drivers "$basicmodules" "$target" \
+ "$kernel"
+ else
+ $dracut_cmd $dracut_args "$target" "$kernel"
+ fi
+ fi
+done
+
+if [ "$skip_update_bootloader" ] ; then
+ echo 2>&1 "Did not refresh the bootloader. You might need to refresh it manually."
+else
+ update-bootloader --refresh
+fi