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396 lines
13 KiB
396 lines
13 KiB
#!/bin/bash --norc |
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# |
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# mkinitrd compatibility wrapper for SUSE. |
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# |
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# Copyright (c) 2013 SUSE Linux Products GmbH. All rights reserved. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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# |
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boot_dir="/boot" |
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quiet=0 |
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logfile=/var/log/YaST2/mkinitrd.log |
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dracut_cmd=dracut |
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error() { echo "$@" >&2; } |
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usage() { |
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[[ $1 = '-n' ]] && cmd=echo || cmd=error |
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$cmd "usage: ${0##*/} [options]" |
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$cmd "" |
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$cmd " Create initial ramdisk images that contain all kernel modules needed" |
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$cmd " in the early boot process, before the root file system becomes" |
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$cmd " available." |
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$cmd " This usually includes SCSI and/or RAID modules, a file system module" |
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$cmd " for the root file system, or a network interface driver module for dhcp." |
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$cmd "" |
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$cmd " options:" |
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$cmd " -f \"feature list\" Features to be enabled when generating initrd." |
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$cmd " Available features are:" |
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$cmd " iscsi, md, multipath, lvm, lvm2," |
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$cmd " ifup, fcoe, dcbd" |
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$cmd " -k \"kernel list\" List of kernel images for which initrd files are" |
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$cmd " created. Defaults to all kernels found in /boot." |
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$cmd " -i \"initrd list\" List of file names for the initrd; position have" |
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$cmd " match to \"kernel list\". Defaults to all kernels" |
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$cmd " found in /boot." |
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$cmd " -b boot_dir Boot directory. Defaults to /boot." |
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$cmd " -t tmp_dir Temporary directory. Defaults to /var/tmp." |
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$cmd " -M map System.map file to use." |
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$cmd " -A Create a so called \"monster initrd\" which" |
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$cmd " includes all features and modules possible." |
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$cmd " -B Do not update bootloader configuration." |
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$cmd " -v Verbose mode." |
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$cmd " -L Disable logging." |
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$cmd " -h This help screen." |
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$cmd " -m \"module list\" Modules to include in initrd. Defaults to the" |
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$cmd " INITRD_MODULES variable in /etc/sysconfig/kernel" |
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$cmd " -u \"DomU module list\" Modules to include in initrd. Defaults to the" |
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$cmd " DOMU_INITRD_MODULES variable in" |
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$cmd " /etc/sysconfig/kernel." |
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$cmd " -d root_device Root device. Defaults to the device from" |
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$cmd " which / is mounted. Overrides the rootdev" |
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$cmd " environment variable if set." |
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$cmd " -j device Journal device" |
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$cmd " -D interface Run dhcp on the specified interface." |
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$cmd " -I interface Configure the specified interface statically." |
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$cmd " -a acpi_dsdt Obsolete, do not use." |
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$cmd " -s size Add splash animation and bootscreen to initrd." |
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[[ $1 = '-n' ]] && exit 0 |
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exit 1 |
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} |
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# Little helper function for reading args from the commandline. |
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# it automatically handles -a b and -a=b variants, and returns 1 if |
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# we need to shift $3. |
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read_arg() { |
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# $1 = arg name |
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# $2 = arg value |
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# $3 = arg parameter |
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param="$1" |
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local rematch='^[^=]*=(.*)$' result |
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if [[ $2 =~ $rematch ]]; then |
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read "$param" <<< "${BASH_REMATCH[1]}" |
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else |
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for ((i = 3; $i <= $#; i++)); do |
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# Only read next arg if it not an arg itself. |
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if [[ ${*:$i:1} = -* ]]; then |
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break |
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fi |
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result="$result ${@:$i:1}" |
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# There is no way to shift our callers args, so |
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# return "no of args" to indicate they should do it instead. |
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done |
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read "$1" <<< "$result" |
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return $(($i - 3)) |
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fi |
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} |
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# Helper functions to calculate ipconfig command line |
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calc_netmask() { |
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local prefix=$1 |
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[ -z "$prefix" ] && return |
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mask=$((0xffffffff << (32 - $prefix))) |
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byte1=$((mask >> 24)) |
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byte2=$((mask >> 16)) |
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byte3=$((mask >> 8)) |
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byte4=$((mask & 0xff)) |
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netmask=$(printf "%d.%d.%d.%d" $((byte1 & 0xff)) $((byte2 & 0xff)) $((byte3 & 0xff)) $byte4) |
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echo $netmask |
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} |
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ipconfig() { |
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local interface=$1 |
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local iplink macaddr broadcast gateway ipaddr prefix netmask |
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iplink=$(ip addr show dev $interface | sed -n 's/ *inet \(.*\) brd.*/\1/p') |
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macaddr=$(ip addr show dev $interface | sed -n 's/.*ether \(.*\) brd.*/\1/p') |
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broadcast=$(ip addr show dev $interface | sed -n 's/.*brd \(.*\) scope.*/\1/p') |
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gateway=$(ip route show dev $interface | sed -n 's/default via \([0-9\.]*\).*/\1/p') |
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ipaddr=${iplink%%/*} |
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prefix=${iplink##*/} |
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netmask=$(calc_netmask $prefix) |
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echo "${ipaddr}:${serveraddr}:${gateway}:${netmask}:${hostname}:${interface}:none::${macaddr}" |
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} |
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is_xen_kernel() { |
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local kversion=$1 |
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local root_dir=$2 |
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local cfg |
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for cfg in ${root_dir}/boot/config-$kversion $root_dir/lib/modules/$kversion/build/.config; do |
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test -r $cfg || continue |
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grep -q "^CONFIG_XEN=y\$" $cfg |
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return |
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done |
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test $kversion != "${kversion%-xen*}" |
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return |
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} |
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kernel_version_from_image() { |
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local dir="${1%/*}/" |
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[[ "$dir" != "$1" ]] || dir="" |
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local kernel_image="$1" kernel_image_gz="${dir}vmlinux-${1#*-}.gz" |
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echo kernel_image_gz="'$kernel_image_gz'" >&2 |
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if get_kernel_version "$kernel_image" 2> /dev/null; then |
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return |
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fi |
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# As a last resort, try vmlinux-$version.gz, which might be around |
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get_kernel_version "$kernel_image_gz" 2> /dev/null |
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} |
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# Taken over from SUSE mkinitrd |
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default_kernel_images() { |
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local regex kernel_image kernel_version version_version initrd_image |
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local qf='%{NAME}-%{VERSION}-%{RELEASE}\n' |
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case "${DRACUT_ARCH:-$(uname -m)}" in |
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s390 | s390x) |
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regex='image' |
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;; |
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ppc | ppc64) |
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regex='vmlinux' |
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;; |
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i?86 | x86_64) |
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regex='vmlinuz' |
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;; |
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arm*) |
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regex='[uz]Image' |
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;; |
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aarch64 | riscv64) |
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regex='Image' |
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;; |
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*) |
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regex='vmlinu.' |
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;; |
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esac |
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kernel_images="" |
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initrd_images="" |
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for kernel_image in $(ls $boot_dir \ |
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| sed -ne "\|^$regex\(-[0-9.]\+-[0-9]\+-[a-z0-9]\+$\)\?|p" \ |
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| grep -v kdump$); do |
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# Note that we cannot check the RPM database here -- this |
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# script is itself called from within the binary kernel |
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# packages, and rpm does not allow recursive calls. |
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[ -L "$boot_dir/$kernel_image" ] && continue |
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[ "${kernel_image%%.gz}" != "$kernel_image" ] && continue |
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kernel_version=$(kernel_version_from_image \ |
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$boot_dir/$kernel_image 2> /dev/null) |
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initrd_image=$(echo $kernel_image | sed -e "s|${regex}|initrd|") |
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if [ "$kernel_image" != "$initrd_image" -a \ |
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-n "$kernel_version" -a \ |
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-d "/lib/modules/$kernel_version" ]; then |
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kernel_images="$kernel_images $boot_dir/$kernel_image" |
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initrd_images="$initrd_images $boot_dir/$initrd_image" |
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fi |
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done |
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for kernel_image in $kernel_images; do |
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kernels="$kernels ${kernel_image#*-}" |
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done |
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for initrd_image in $initrd_images; do |
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targets="$targets $initrd_image" |
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done |
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} |
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while (($# > 0)); do |
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case ${1%%=*} in |
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-f) |
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read_arg feature_list "$@" || shift $? |
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# Could be several features |
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;; |
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-k) # Would be nice to get a list of images here |
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read_arg kernel_images "$@" || shift $? |
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for kernel_image in $kernel_images; do |
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[ -L "/boot/$kernel_image" ] && kernel_image="$(readlink "/boot/$kernel_image")" |
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kernels="$kernels ${kernel_image#*-}" |
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done |
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;; |
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-i) |
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read_arg initrd_images "$@" || shift $? |
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for initrd_image in $initrd_images; do |
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[ -L "/boot/$initrd_image" ] && initrd_image="$(readlink "/boot/$initrd_image")" |
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# Check if the initrd_image contains a path. |
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# if not, then add the default boot_dir |
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dname=$(dirname $initrd_image) |
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if [ "$dname" == "." ]; then |
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targets="$targets $boot_dir/$initrd_image" |
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else |
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targets="$targets $initrd_image" |
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fi |
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done |
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;; |
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-b) |
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read_arg boot_dir "$@" || shift $? |
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if [ ! -d $boot_dir ]; then |
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error "Boot directory $boot_dir does not exist" |
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exit 1 |
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fi |
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;; |
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-t) |
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read_arg tmp_dir "$@" || shift $? |
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dracut_args="${dracut_args} --tmpdir $tmp_dir" |
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;; |
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-M) |
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read_arg map_file "$@" || shift $? |
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;; |
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-A) dracut_args="${dracut_args} --no-host-only" ;; |
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-B) skip_update_bootloader=1 ;; |
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-v | --verbose) dracut_args="${dracut_args} -v" ;; |
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-L) logfile= ;; |
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-h | --help) usage -n ;; |
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-m) read_arg module_list "$@" || shift $? ;; |
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-u) |
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read_arg domu_module_list "$@" || shift $? |
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echo "mkinitrd: DomU modules not yet supported" |
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;; |
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-d) |
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read_arg rootfs "$@" || shift $? |
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dracut_args="${dracut_args} --filesystems $rootfs" |
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;; |
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-D) |
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read_arg dhcp_if "$@" || shift $? |
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dracut_cmdline="${dracut_cmdline} ip=${dhcp_if}:dhcp" |
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;; |
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-I) |
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read_arg static_if "$@" || shift $? |
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dracut_cmdline="${dracut_cmdline} ip=$(ipconfig $static_if)": |
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;; |
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-a) |
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read_arg acpi_dsdt "$@" || shift $? |
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echo "Obsolete -a param, use acpi_table_dir= and acpi_override= variables in /etc/dracut.conf.d/" |
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exit 1 |
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;; |
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-s) |
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read_arg boot_splash "$@" || shift $? |
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echo "mkinitrd: boot splash not yet supported" |
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exit 1 |
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;; |
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-V) |
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echo "mkinitrd: vendor scipts are no longer supported" |
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exit 1 |
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;; |
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--dracut) |
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read_arg dracut_cmd "$@" || shift $? |
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;; |
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--version | -R) |
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echo "mkinitrd: dracut compatibility wrapper" |
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exit 0 |
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;; |
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--quiet | -q) quiet=1 ;; |
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*) if [[ ! $targets ]]; then |
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targets=$1 |
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elif [[ ! $kernels ]]; then |
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kernels=$1 |
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else |
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usage |
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fi ;; |
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esac |
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shift |
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done |
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[[ $targets && $kernels ]] || default_kernel_images |
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if [[ ! $targets || ! $kernels ]]; then |
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error "No kernel found in $boot_dir or bad modules dir in /lib/modules" |
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exit 1 |
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fi |
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# We can have several targets/kernels, transform the list to an array |
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targets=($targets) |
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[[ $kernels ]] && kernels=($kernels) |
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[[ $logfile ]] && dracut_args="${dracut_args} --logfile $logfile" |
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dracut_args="${dracut_args} --force" |
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[[ $dracut_cmdline ]] && dracut_args="${dracut_args} --kernel-cmdline ${dracut_cmdline}" |
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[ -z "$(type -p update-bootloader)" ] && skip_update_bootloader=1 |
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# Update defaults from /etc/sysconfig/kernel |
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if [ -f /etc/sysconfig/kernel ]; then |
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. /etc/sysconfig/kernel |
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fi |
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[[ $module_list ]] || module_list="${INITRD_MODULES}" |
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[[ $domu_module_list ]] || domu_module_list="${DOMU_INITRD_MODULES}" |
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shopt -s extglob |
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failed="" |
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for ((i = 0; $i < ${#targets[@]}; i++)); do |
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if [[ $img_vers ]]; then |
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target="${targets[$i]}-${kernels[$i]}" |
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else |
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target="${targets[$i]}" |
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fi |
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kernel="${kernels[$i]}" |
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if is_xen_kernel $kernel $rootfs; then |
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modules_all="${module_list} ${domu_module_list}" |
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else |
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modules_all="${module_list}" |
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fi |
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# Remove leading and trailing spaces needs (set above): shopt -s extglob |
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modules_all=${modules_all%%+([[:space:]])} |
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modules_all=${modules_all##+([[:space:]])} |
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echo "Creating initrd: $target" |
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# Duplicate code: No way found how to redirect output based on $quiet |
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if [[ $quiet == 1 ]]; then |
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# Duplicate code: --force-drivers must not be called with empty string |
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# -> dracut bug workarounded ugly, because of complex whitespace |
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# expansion magics |
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if [ -n "${modules_all}" ]; then |
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$dracut_cmd $dracut_args --force-drivers "${modules_all}" "$target" "$kernel" &> /dev/null |
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[ $? -ne 0 ] && failed="$failed $target" |
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else |
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$dracut_cmd $dracut_args "$target" "$kernel" &> /dev/null |
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[ $? -ne 0 ] && failed="$failed $target" |
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fi |
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else |
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if [ -n "${modules_all}" ]; then |
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$dracut_cmd $dracut_args --force-drivers "${modules_all}" "$target" "$kernel" |
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[ $? -ne 0 ] && failed="$failed $target" |
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else |
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$dracut_cmd $dracut_args "$target" "$kernel" |
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[ $? -ne 0 ] && failed="$failed $target" |
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fi |
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fi |
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done |
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if [ "$skip_update_bootloader" ]; then |
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echo 2>&1 "Did not refresh the bootloader. You might need to refresh it manually." |
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else |
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update-bootloader --refresh |
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[ $? -ne 0 ] && echo "Updating bootloader failed" && exit 1 |
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fi |
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if [ "$failed" != "" ]; then |
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echo "Generating $failed targets failed" |
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exit 1 |
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fi |
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exit 0
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