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genkernel_fork/gen_initramfs.sh

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#!/bin/bash
# $Id$
CPIO_ARGS="--quiet -o -H newc"
# The copy_binaries function is explicitly released under the CC0 license to
# encourage wide adoption and re-use. That means:
# - You may use the code of copy_binaries() as CC0 outside of genkernel
# - Contributions to this function are licensed under CC0 as well.
# - If you change it outside of genkernel, please consider sending your
# modifications back to genkernel@gentoo.org.
#
# On a side note: "Both public domain works and the simple license provided by
# CC0 are compatible with the GNU GPL."
# (from https://www.gnu.org/licenses/license-list.html#CC0)
#
# Written by:
# - Sebastian Pipping <sebastian@pipping.org> (error checking)
# - Robin H. Johnson <robbat2@gentoo.org> (complete rewrite)
# - Richard Yao <ryao@cs.stonybrook.edu> (original concept)
# Usage:
# copy_binaries DESTDIR BINARIES...
copy_binaries() {
local destdir=$1
shift
for binary in "$@"; do
[[ -e "${binary}" ]] \
|| gen_die "Binary ${binary} could not be found"
if LC_ALL=C lddtree "${binary}" 2>&1 | fgrep -q 'not found'; then
gen_die "Binary ${binary} is linked to missing libraries and may need to be re-built"
fi
done
# This must be OUTSIDE the for loop, we only want to run lddtree etc ONCE.
# lddtree does not have the -V (version) nor the -l (list) options prior to version 1.18
(
if lddtree -V > /dev/null 2>&1 ; then
lddtree -l "$@"
else
lddtree "$@" \
| tr ')(' '\n' \
| awk '/=>/{ if($3 ~ /^\//){print $3}}'
fi ) \
| sort \
| uniq \
| cpio -p --make-directories --dereference --quiet "${destdir}" \
|| gen_die "Binary ${f} or some of its library dependencies could not be copied"
}
log_future_cpio_content() {
if [[ "${LOGLEVEL}" -gt 1 ]]; then
echo =================================================================
echo "About to add these files from '${PWD}' to cpio archive:"
find . | xargs ls -ald
echo =================================================================
fi
}
append_base_layout() {
if [ -d "${TEMP}/initramfs-base-temp" ]
then
rm -rf "${TEMP}/initramfs-base-temp" > /dev/null
fi
mkdir -p ${TEMP}/initramfs-base-temp/dev/shm
mkdir -p ${TEMP}/initramfs-base-temp/bin
mkdir -p ${TEMP}/initramfs-base-temp/etc
mkdir -p ${TEMP}/initramfs-base-temp/usr
mkdir -p ${TEMP}/initramfs-base-temp/lib
mkdir -p ${TEMP}/initramfs-base-temp/mnt
mkdir -p ${TEMP}/initramfs-base-temp/run
mkdir -p ${TEMP}/initramfs-base-temp/sbin
mkdir -p ${TEMP}/initramfs-base-temp/proc
mkdir -p ${TEMP}/initramfs-base-temp/temp
mkdir -p ${TEMP}/initramfs-base-temp/tmp
mkdir -p ${TEMP}/initramfs-base-temp/sys
mkdir -p ${TEMP}/initramfs-temp/.initrd
mkdir -p ${TEMP}/initramfs-base-temp/var/lock/dmraid
mkdir -p ${TEMP}/initramfs-base-temp/sbin
mkdir -p ${TEMP}/initramfs-base-temp/usr/bin
mkdir -p ${TEMP}/initramfs-base-temp/usr/sbin
mkdir -p ${TEMP}/initramfs-base-temp/usr/share
mkdir -p ${TEMP}/initramfs-base-temp/usr/lib
ln -s lib ${TEMP}/initramfs-base-temp/lib64
ln -s lib ${TEMP}/initramfs-base-temp/usr/lib64
echo "/dev/ram0 / ext2 defaults 0 0" > ${TEMP}/initramfs-base-temp/etc/fstab
echo "proc /proc proc defaults 0 0" >> ${TEMP}/initramfs-base-temp/etc/fstab
cd ${TEMP}/initramfs-base-temp/dev
mknod -m 660 console c 5 1
mknod -m 660 null c 1 3
mknod -m 660 zero c 1 5
mknod -m 600 tty0 c 4 0
mknod -m 600 tty1 c 4 1
mknod -m 600 ttyS0 c 4 64
date -u '+%Y%m%d-%H%M%S' > ${TEMP}/initramfs-base-temp/etc/build_date
echo "Genkernel $GK_V" > ${TEMP}/initramfs-base-temp/etc/build_id
cd "${TEMP}/initramfs-base-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing baselayout cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-base-temp" > /dev/null
}
append_busybox() {
if [ -d "${TEMP}/initramfs-busybox-temp" ]
then
rm -rf "${TEMP}/initramfs-busybox-temp" > /dev/null
fi
mkdir -p "${TEMP}/initramfs-busybox-temp/bin/"
tar -xjf "${BUSYBOX_BINCACHE}" -C "${TEMP}/initramfs-busybox-temp/bin" busybox ||
gen_die 'Could not extract busybox bincache!'
chmod +x "${TEMP}/initramfs-busybox-temp/bin/busybox"
mkdir -p "${TEMP}/initramfs-busybox-temp/usr/share/udhcpc/"
cp "${GK_SHARE}/defaults/udhcpc.scripts" ${TEMP}/initramfs-busybox-temp/usr/share/udhcpc/default.script
chmod +x "${TEMP}/initramfs-busybox-temp/usr/share/udhcpc/default.script"
# Set up a few default symlinks
local default_applets="[ ash sh mount uname ls echo cut cat flock stty"
default_applets+=" readlink"
for i in ${BUSYBOX_APPLETS:-${default_applets}}; do
rm -f ${TEMP}/initramfs-busybox-temp/bin/$i
ln -s busybox ${TEMP}/initramfs-busybox-temp/bin/$i ||
gen_die "Busybox error: could not link ${i}!"
done
local mod_applets="sbin/modprobe sbin/insmod sbin/rmmod bin/lsmod"
local dir=
local name=
for i in ${mod_applets}; do
dir=$(dirname $i)
name=$(basename $i)
rm -f ${TEMP}/initramfs-busybox-temp/$dir/$name
mkdir -p ${TEMP}/initramfs-busybox-temp/$dir ||
gen_die "Busybox error: could not create dir: $dir"
ln -s ../bin/busybox ${TEMP}/initramfs-busybox-temp/$dir/$name ||
gen_die "Busybox error: could not link ${i}!"
done
cd "${TEMP}/initramfs-busybox-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing busybox cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-busybox-temp" > /dev/null
}
append_e2fsprogs(){
if [ -d "${TEMP}"/initramfs-e2fsprogs-temp ]
then
rm -r "${TEMP}"/initramfs-e2fsprogs-temp
fi
cd "${TEMP}" \
|| gen_die "cd '${TEMP}' failed"
mkdir -p initramfs-e2fsprogs-temp
copy_binaries "${TEMP}"/initramfs-e2fsprogs-temp/ /sbin/{e2fsck,mke2fs}
cd "${TEMP}"/initramfs-e2fsprogs-temp \
|| gen_die "cd '${TEMP}/initramfs-e2fsprogs-temp' failed"
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
rm -rf "${TEMP}"/initramfs-e2fsprogs-temp > /dev/null
}
append_blkid(){
if [ -d "${TEMP}/initramfs-blkid-temp" ]
then
rm -r "${TEMP}/initramfs-blkid-temp/"
fi
cd ${TEMP}
mkdir -p "${TEMP}/initramfs-blkid-temp/"
if [[ "${DISKLABEL}" = "1" ]]; then
copy_binaries "${TEMP}"/initramfs-blkid-temp/ /sbin/blkid
fi
cd "${TEMP}/initramfs-blkid-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing blkid cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-blkid-temp" > /dev/null
}
append_multipath(){
if [ -d "${TEMP}/initramfs-multipath-temp" ]
then
rm -r "${TEMP}/initramfs-multipath-temp"
fi
print_info 1 ' Multipath support being added'
mkdir -p "${TEMP}"/initramfs-multipath-temp/{bin,etc,sbin,lib}/
# Copy files
copy_binaries "${TEMP}/initramfs-multipath-temp" \
/bin/mountpoint \
/sbin/{multipath,kpartx,mpath_prio_*,devmap_name,dmsetup} \
/{lib,lib64}/{udev/scsi_id,multipath/*so}
if [ -x /sbin/multipath ]
then
cp /etc/multipath.conf "${TEMP}/initramfs-multipath-temp/etc/" || gen_die 'could not copy /etc/multipath.conf please check this'
fi
# /etc/scsi_id.config does not exist in newer udevs
# copy it optionally.
if [ -x /sbin/scsi_id -a -f /etc/scsi_id.config ]
then
cp /etc/scsi_id.config "${TEMP}/initramfs-multipath-temp/etc/" || gen_die 'could not copy scsi_id.config'
fi
cd "${TEMP}/initramfs-multipath-temp"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing multipath cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-multipath-temp/"
}
append_dmraid(){
if [ -d "${TEMP}/initramfs-dmraid-temp" ]
then
rm -r "${TEMP}/initramfs-dmraid-temp/"
fi
print_info 1 'DMRAID: Adding support (copying binaries from system)...'
mkdir -p "${TEMP}/initramfs-dmraid-temp/sbin"
copy_binaries "${TEMP}/initramfs-dmraid-temp" \
/usr/sbin/dmraid /usr/sbin/dmevent_tool
cd "${TEMP}/initramfs-dmraid-temp"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing dmraid cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-dmraid-temp/"
}
append_iscsi(){
if [ -d "${TEMP}/initramfs-iscsi-temp" ]
then
rm -r "${TEMP}/initramfs-iscsi-temp/"
fi
print_info 1 'iSCSI: Adding support (copying binaries from system)...'
mkdir -p "${TEMP}/initramfs-iscsi-temp/usr/sbin/"
copy_binaries /usr/sbin/iscsistart
cd "${TEMP}/initramfs-iscsi-temp"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing iscsi cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-iscsi-temp/"
}
append_lvm(){
if [ -d "${TEMP}/initramfs-lvm-temp" ]
then
rm -r "${TEMP}/initramfs-lvm-temp/"
fi
cd ${TEMP}
mkdir -p "${TEMP}/initramfs-lvm-temp"/{bin,sbin}
mkdir -p "${TEMP}/initramfs-lvm-temp/etc/lvm/"
print_info 1 'LVM: Adding support (copying binaries from system)...'
udev_files=( $(qlist -e sys-fs/lvm2:0 | grep ^/lib/udev/rules.d) )
for f in "${udev_files[@]}"; do
[ -f "${f}" ] || gen_die "append_lvm: not a file: ${f}"
mkdir -p "${TEMP}/initramfs-lvm-temp"/$(dirname "${f}") || \
gen_die "cannot create rules.d directory"
cp "${f}" "${TEMP}/initramfs-lvm-temp/${f}" || \
gen_die "cannot copy ${f} from system"
done
copy_binaries "${TEMP}/initramfs-lvm-temp" \
/sbin/lvm /sbin/dmsetup /sbin/thin_check \
/sbin/thin_restore /sbin/thin_dump
if [ -f /etc/lvm/lvm.conf ]
then
cp /etc/lvm/lvm.conf "${TEMP}/initramfs-lvm-temp/etc/lvm/" ||
gen_die 'Could not copy over lvm.conf!'
fi
cd "${TEMP}/initramfs-lvm-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing lvm cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-lvm-temp/"
}
append_mdadm(){
if [ -d "${TEMP}/initramfs-mdadm-temp" ]
then
rm -r "${TEMP}/initramfs-mdadm-temp/"
fi
cd ${TEMP}
mkdir -p "${TEMP}/initramfs-mdadm-temp/etc/"
mkdir -p "${TEMP}/initramfs-mdadm-temp/sbin/"
copy_binaries "${TEMP}/initramfs-mdadm-temp" \
/sbin/mdadm /sbin/mdmon /sbin/mdassemble
if [ -n "${MDADM_CONFIG}" ]
then
if [ -f "${MDADM_CONFIG}" ]
then
cp -a "${MDADM_CONFIG}" \
"${TEMP}/initramfs-mdadm-temp/etc/mdadm.conf" \
|| gen_die "Could not copy mdadm.conf!"
else
gen_die 'sl${MDADM_CONFIG} does not exist!'
fi
else
print_info 1 ' MDADM: Skipping inclusion of mdadm.conf'
fi
cd "${TEMP}/initramfs-mdadm-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing mdadm cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-mdadm-temp" > /dev/null
}
append_zfs(){
if [ -d "${TEMP}/initramfs-zfs-temp" ]
then
rm -r "${TEMP}/initramfs-zfs-temp"
fi
mkdir -p "${TEMP}/initramfs-zfs-temp/etc/zfs"
# Copy files to /etc/zfs
for i in zdev.conf zpool.cache
do
if [ -f /etc/zfs/${i} ]
then
print_info 1 " >> Including ${i}"
cp -a "/etc/zfs/${i}" "${TEMP}/initramfs-zfs-temp/etc/zfs" 2> /dev/null \
|| gen_die "Could not copy file ${i} for ZFS"
fi
done
# Copy binaries
copy_binaries "${TEMP}/initramfs-zfs-temp" /sbin/{mount.zfs,zfs,zpool}
cd "${TEMP}/initramfs-zfs-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing zfs cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-zfs-temp" > /dev/null
}
append_splash(){
splash_geninitramfs=`which splash_geninitramfs 2>/dev/null`
if [ -x "${splash_geninitramfs}" ]
then
[ -z "${SPLASH_THEME}" ] && [ -e /etc/conf.d/splash ] && source /etc/conf.d/splash
[ -z "${SPLASH_THEME}" ] && SPLASH_THEME=default
print_info 1 " >> Installing splash [ using the ${SPLASH_THEME} theme ]..."
if [ -d "${TEMP}/initramfs-splash-temp" ]
then
rm -r "${TEMP}/initramfs-splash-temp/"
fi
mkdir -p "${TEMP}/initramfs-splash-temp"
cd /
local tmp=""
[ -n "${SPLASH_RES}" ] && tmp="-r ${SPLASH_RES}"
splash_geninitramfs -c "${TEMP}/initramfs-splash-temp" ${tmp} ${SPLASH_THEME} || gen_die "Could not build splash cpio archive"
if [ -e "/usr/share/splashutils/initrd.splash" ]; then
mkdir -p "${TEMP}/initramfs-splash-temp/etc"
cp -f "/usr/share/splashutils/initrd.splash" "${TEMP}/initramfs-splash-temp/etc"
fi
cd "${TEMP}/initramfs-splash-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing splash cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-splash-temp/"
else
print_warning 1 ' >> No splash detected; skipping!'
fi
}
append_plymouth() {
[ -z "${PLYMOUTH_THEME}" ] && \
PLYMOUTH_THEME=$(plymouth-set-default-theme)
[ -z "${PLYMOUTH_THEME}" ] && PLYMOUTH_THEME=text
if [ -d "${TEMP}/initramfs-ply-temp" ]
then
rm -r "${TEMP}/initramfs-ply-temp"
fi
mkdir -p "${TEMP}/initramfs-ply-temp/usr/share/plymouth/themes"
mkdir -p "${TEMP}/initramfs-ply-temp/etc/plymouth"
mkdir -p "${TEMP}/initramfs-ply-temp/"{bin,sbin}
cd "${TEMP}/initramfs-ply-temp"
local theme_dir="/usr/share/plymouth/themes"
local t=
local p=
local ply="${theme_dir}/${PLYMOUTH_THEME}/${PLYMOUTH_THEME}.plymouth"
local plugin=$(grep "^ModuleName=" "${ply}" | cut -d= -f2-)
local plugin_binary=
if [ -n "${plugin}" ]
then
plugin_binary="$(plymouth --get-splash-plugin-path)/${plugin}.so"
fi
print_info 1 " >> Installing plymouth [ using the ${PLYMOUTH_THEME} theme and plugin: \"${plugin}\" ]..."
for t in text details ${PLYMOUTH_THEME}; do
cp -R "${theme_dir}/${t}" \
"${TEMP}/initramfs-ply-temp${theme_dir}/" || \
gen_die "cannot copy ${theme_dir}/details"
done
cp /usr/share/plymouth/{bizcom.png,plymouthd.defaults} \
"${TEMP}/initramfs-ply-temp/usr/share/plymouth/" || \
gen_die "cannot copy bizcom.png and plymouthd.defaults"
# Do both config setup
echo -en "[Daemon]\nTheme=${PLYMOUTH_THEME}\n" > \
"${TEMP}/initramfs-ply-temp/etc/plymouth/plymouthd.conf" || \
gen_die "Cannot create /etc/plymouth/plymouthd.conf"
ln -sf "${PLYMOUTH_THEME}/${PLYMOUTH_THEME}.plymouth" \
"${TEMP}/initramfs-ply-temp${theme_dir}/default.plymouth" || \
gen_die "cannot setup the default plymouth theme"
local libs=(
"/lib*/libply-splash-core.so.*"
"/usr/lib*/libply-splash-graphics.so.*"
"/usr/lib*/plymouth/text.so"
"/usr/lib*/plymouth/details.so"
"/usr/lib*/plymouth/renderers/frame-buffer.so"
"/usr/lib*/plymouth/renderers/drm.so"
"${plugin_binary}"
)
# lib64 must take the precedence or all the cpio archive
# symlinks will be fubared
local slib= lib= final_lib= final_libs=()
for slib in "${libs[@]}"; do
lib=( ${slib} )
final_lib="${lib[0]}"
final_libs+=( "${final_lib}" )
done
copy_binaries "${TEMP}/initramfs-ply-temp" \
/sbin/plymouthd /bin/plymouth \
"${final_libs[@]}" || gen_die "cannot copy plymouth"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "appending plymouth to cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-ply-temp/"
}
append_overlay(){
cd ${INITRAMFS_OVERLAY}
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing overlay cpio"
}
append_luks() {
local _luks_error_format="LUKS support cannot be included: %s. Please emerge sys-fs/cryptsetup[static]."
local _luks_source=/sbin/cryptsetup
local _luks_dest=/sbin/cryptsetup
if [ -d "${TEMP}/initramfs-luks-temp" ]
then
rm -r "${TEMP}/initramfs-luks-temp/"
fi
mkdir -p "${TEMP}/initramfs-luks-temp/lib/luks/"
mkdir -p "${TEMP}/initramfs-luks-temp/sbin"
cd "${TEMP}/initramfs-luks-temp"
if isTrue ${LUKS}
then
[ -x "${_luks_source}" ] \
|| gen_die "$(printf "${_luks_error_format}" "no file ${_luks_source}")"
print_info 1 "Including LUKS support"
copy_binaries "${TEMP}/initramfs-luks-temp/" /sbin/cryptsetup
fi
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "appending cryptsetup to cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-luks-temp/"
}
append_firmware() {
if [ -z "${FIRMWARE_FILES}" -a ! -d "${FIRMWARE_DIR}" ]
then
gen_die "specified firmware directory (${FIRMWARE_DIR}) does not exist"
fi
if [ -d "${TEMP}/initramfs-firmware-temp" ]
then
rm -r "${TEMP}/initramfs-firmware-temp/"
fi
mkdir -p "${TEMP}/initramfs-firmware-temp/lib/firmware"
cd "${TEMP}/initramfs-firmware-temp"
if [ -n "${FIRMWARE_FILES}" ]
then
OLD_IFS=$IFS
IFS=","
for i in ${FIRMWARE_FILES}
do
cp -L "${i}" ${TEMP}/initramfs-firmware-temp/lib/firmware/
done
IFS=$OLD_IFS
else
cp -a "${FIRMWARE_DIR}"/* ${TEMP}/initramfs-firmware-temp/lib/firmware/
fi
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "appending firmware to cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-firmware-temp/"
}
append_gpg() {
if [ -d "${TEMP}/initramfs-gpg-temp" ]
then
rm -r "${TEMP}/initramfs-gpg-temp"
fi
mkdir -p "${TEMP}/initramfs-gpg-temp/sbin/"
print_info 1 "Including GPG support"
copy_binaries "${TEMP}/initramfs-gpg-temp" /sbin/gpg
cd "${TEMP}/initramfs-gpg-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing gpg cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-gpg-temp" > /dev/null
}
append_udev() {
if [ -d "${TEMP}/initramfs-udev-temp" ]
then
rm -r "${TEMP}/initramfs-udev-temp"
fi
udev_files="
/lib/udev/rules.d/50-udev-default.rules
/lib/udev/rules.d/60-persistent-storage.rules
/lib/udev/rules.d/80-drivers.rules
/etc/udev/udev.conf
"
udev_maybe_files="
/lib/udev/rules.d/99-systemd.rules
/etc/modprobe.d/blacklist.conf
"
is_maybe=0
for f in ${udev_files} -- ${udev_maybe_files}; do
[ "${f}" = "--" ] && {
is_maybe=1;
continue;
}
mkdir -p "${TEMP}/initramfs-udev-temp"/$(dirname "${f}") || \
gen_die "cannot create rules.d directory"
cp "${f}" "${TEMP}/initramfs-udev-temp/${f}"
if [ "${?}" != "0" ]
then
[ "${is_maybe}" = "0" ] && \
gen_die "cannot copy ${f} from udev"
[ "${is_maybe}" = "1" ] && \
print_warning 1 "cannot copy ${f} from udev"
fi
done
# Copy binaries
copy_binaries "${TEMP}/initramfs-udev-temp" \
/sbin/udevd /bin/udevadm /lib/udev/scsi_id \
/lib/udev/ata_id /lib/udev/mtd_probe
cd "${TEMP}/initramfs-udev-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing udev cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-udev-temp" > /dev/null
}
append_ld_so_conf() {
print_info 1 'ld.so.conf: adding /etc/ld.so.conf{.d/*,}...'
local tmp_dir="${TEMP}/initramfs-ld-temp"
rm -rf "${tmp_dir}"
mkdir -p "${tmp_dir}"
local f= f_dir=
for f in /etc/ld.so.conf /etc/ld.so.conf.d/*; do
if [ -f "${f}" ]; then
f_dir=$(dirname "${f}")
tmp_f_dir="${tmp_dir}/${f_dir}"
mkdir -p "${tmp_f_dir}" || \
gen_die "cannot create dir ${tmp_f_dir}"
cp -a "${f}" "${tmp_f_dir}/" || \
gen_die "cannot copy ${f} to ${tmp_f_dir}"
fi
done
cd "${tmp_dir}" || gen_die "cannot cd into ${tmp_dir}"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing ld.so.conf.* cpio"
cd "$(dirname "${tmp_dir}")"
rm -rf "${tmp_dir}"
# Unfortunately genkernel works by appending cruft over crut
# but we need to generate a valid ld.so.conf. So we extract the
# current CPIO archive, run ldconfig -r against it and append the
# last bits.
local tmp_dir_ext="${tmp_dir}/extracted"
mkdir -p "${tmp_dir_ext}"
mkdir -p "${tmp_dir}/etc"
cd "${tmp_dir_ext}" || gen_die "cannot cd into ${tmp_dir_ext}"
cpio -id --quiet < "${CPIO}" || gen_die "cannot re-extract ${CPIO}"
cd "${tmp_dir}" || gen_die "cannot cd into ${tmp_dir}"
ldconfig -r "${tmp_dir_ext}" || \
gen_die "cannot run ldconfig on ${tmp_dir_ext}"
cp -a "${tmp_dir_ext}/etc/ld.so.cache" "${tmp_dir}/etc/ld.so.cache" || \
gen_die "cannot copy ld.so.cache"
rm -rf "${tmp_dir_ext}"
cd "${tmp_dir}" || gen_die "cannot cd into ${tmp_dir}"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing ld.so.cache cpio"
cd "$(dirname "${tmp_dir}")"
rm -rf "${tmp_dir}"
}
print_list()
{
local x
for x in ${*}
do
echo ${x}
done
}
append_modules() {
local group
local group_modules
local MOD_EXT=".ko"
print_info 2 "initramfs: >> Searching for modules..."
if [ "${INSTALL_MOD_PATH}" != '' ]
then
cd ${INSTALL_MOD_PATH}
else
cd /
fi
if [ -d "${TEMP}/initramfs-modules-${KV}-temp" ]
then
rm -r "${TEMP}/initramfs-modules-${KV}-temp/"
fi
mkdir -p "${TEMP}/initramfs-modules-${KV}-temp/lib/modules/${KV}"
for i in `gen_dep_list`
do
mymod=`find ./lib/modules/${KV} -name "${i}${MOD_EXT}" 2>/dev/null| head -n 1 `
if [ -z "${mymod}" ]
then
print_warning 2 "Warning :: ${i}${MOD_EXT} not found; skipping..."
continue;
fi
print_info 2 "initramfs: >> Copying ${i}${MOD_EXT}..."
cp -ax --parents "${mymod}" "${TEMP}/initramfs-modules-${KV}-temp"
done
cp -ax --parents ./lib/modules/${KV}/modules* ${TEMP}/initramfs-modules-${KV}-temp 2>/dev/null
mkdir -p "${TEMP}/initramfs-modules-${KV}-temp/etc/modules"
for group_modules in ${!MODULES_*}; do
group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
print_list ${!group_modules} > "${TEMP}/initramfs-modules-${KV}-temp/etc/modules/${group}"
done
cd "${TEMP}/initramfs-modules-${KV}-temp/"
log_future_cpio_content
find . | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing modules cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-modules-${KV}-temp/"
}
# check for static linked file with objdump
is_static() {
LANG="C" LC_ALL="C" objdump -T $1 2>&1 | grep "not a dynamic object" > /dev/null
return $?
}
append_auxilary() {
if [ -d "${TEMP}/initramfs-aux-temp" ]
then
rm -r "${TEMP}/initramfs-aux-temp/"
fi
mkdir -p "${TEMP}/initramfs-aux-temp/etc"
mkdir -p "${TEMP}/initramfs-aux-temp/sbin"
if [ -f "${CMD_LINUXRC}" ]
then
cp "${CMD_LINUXRC}" "${TEMP}/initramfs-aux-temp/init"
print_info 2 " >> Copying user specified linuxrc: ${CMD_LINUXRC} to init"
else
if isTrue ${NETBOOT}
then
cp "${GK_SHARE}/netboot/linuxrc.x" "${TEMP}/initramfs-aux-temp/init"
else
if [ -f "${GK_SHARE}/arch/${ARCH}/linuxrc" ]
then
cp "${GK_SHARE}/arch/${ARCH}/linuxrc" "${TEMP}/initramfs-aux-temp/init"
else
cp "${GK_SHARE}/defaults/linuxrc" "${TEMP}/initramfs-aux-temp/init"
fi
fi
fi
# Make sure it's executable
chmod 0755 "${TEMP}/initramfs-aux-temp/init"
# Make a symlink to init .. incase we are bundled inside the kernel as one
# big cpio.
cd ${TEMP}/initramfs-aux-temp
ln -s init linuxrc
# ln ${TEMP}/initramfs-aux-temp/init ${TEMP}/initramfs-aux-temp/linuxrc
if [ -f "${GK_SHARE}/arch/${ARCH}/initrd.scripts" ]
then
cp "${GK_SHARE}/arch/${ARCH}/initrd.scripts" "${TEMP}/initramfs-aux-temp/etc/initrd.scripts"
else
cp "${GK_SHARE}/defaults/initrd.scripts" "${TEMP}/initramfs-aux-temp/etc/initrd.scripts"
fi
if [ -f "${GK_SHARE}/arch/${ARCH}/initrd.defaults" ]
then
cp "${GK_SHARE}/arch/${ARCH}/initrd.defaults" "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
else
cp "${GK_SHARE}/defaults/initrd.defaults" "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
fi
if [ -n "${REAL_ROOT}" ]
then
sed -i "s:^REAL_ROOT=.*$:REAL_ROOT='${REAL_ROOT}':" "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
fi
echo -n 'HWOPTS="$HWOPTS ' >> "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
for group_modules in ${!MODULES_*}; do
group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
echo -n "${group} " >> "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
done
echo '"' >> "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
if isTrue $CMD_DOKEYMAPAUTO
then
echo 'MY_HWOPTS="${MY_HWOPTS} keymap"' >> ${TEMP}/initramfs-aux-temp/etc/initrd.defaults
fi
if isTrue $CMD_KEYMAP
then
print_info 1 " >> Copying keymaps"
mkdir -p "${TEMP}/initramfs-aux-temp/lib/"
cp -R "${GK_SHARE}/defaults/keymaps" "${TEMP}/initramfs-aux-temp/lib/" \
|| gen_die "Error while copying keymaps"
fi
cd ${TEMP}/initramfs-aux-temp/sbin && ln -s ../init init
cd ${TEMP}
chmod +x "${TEMP}/initramfs-aux-temp/init"
chmod +x "${TEMP}/initramfs-aux-temp/etc/initrd.scripts"
chmod +x "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
if isTrue ${NETBOOT}
then
cd "${GK_SHARE}/netboot/misc"
cp -pPRf * "${TEMP}/initramfs-aux-temp/"
fi
cd "${TEMP}/initramfs-aux-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing auxilary cpio"
cd "${TEMP}"
rm -r "${TEMP}/initramfs-aux-temp/"
}
append_data() {
local name=$1 var=$2
local func="append_${name}"
[ $# -eq 0 ] && gen_die "append_data() called with zero arguments"
if [ $# -eq 1 ] || isTrue ${var}
then
print_info 1 " >> Appending ${name} cpio data..."
${func} || gen_die "${func}() failed"
fi
}
create_initramfs() {
local compress_ext=""
print_info 1 "initramfs: >> Initializing..."
# Create empty cpio
CPIO="${TMPDIR}/initramfs-${KV}"
echo | cpio ${CPIO_ARGS} -F "${CPIO}" 2>/dev/null \
|| gen_die "Could not create empty cpio at ${CPIO}"
append_data 'base_layout'
append_data 'udev' "${UDEV}"
append_data 'auxilary' "${BUSYBOX}"
append_data 'busybox' "${BUSYBOX}"
isTrue "${CMD_E2FSPROGS}" && append_data 'e2fsprogs'
append_data 'lvm' "${LVM}"
append_data 'dmraid' "${DMRAID}"
append_data 'iscsi' "${ISCSI}"
append_data 'mdadm' "${MDADM}"
append_data 'luks' "${LUKS}"
append_data 'multipath' "${MULTIPATH}"
append_data 'gpg' "${GPG}"
if [ "${RAMDISKMODULES}" = '1' ]
then
append_data 'modules'
else
print_info 1 "initramfs: Not copying modules..."
fi
append_data 'zfs' "${ZFS}"
append_data 'blkid' "${DISKLABEL}"
append_data 'splash' "${SPLASH}"
append_data 'plymouth' "${PLYMOUTH}"
if isTrue "${FIRMWARE}" && [ -n "${FIRMWARE_DIR}" ]
then
append_data 'firmware'
fi
# This should always be appended last
if [ "${INITRAMFS_OVERLAY}" != '' ]
then
append_data 'overlay'
fi
# keep this at the very end, generates /etc/ld.so.conf* and cache
append_data 'ld_so_conf'
# Finalize cpio by removing duplicate files
print_info 1 " >> Finalizing cpio..."
local TDIR="${TEMP}/initramfs-final"
mkdir -p "${TDIR}"
cd "${TDIR}"
cpio --quiet -i -F "${CPIO}" 2> /dev/null \
|| gen_die "extracting cpio for finalization"
find . -print | cpio ${CPIO_ARGS} -F "${CPIO}" 2>/dev/null \
|| gen_die "recompressing cpio"
cd "${TEMP}"
rm -r "${TDIR}"
if isTrue "${INTEGRATED_INITRAMFS}"
then
# Explicitly do not compress if we are integrating into the kernel.
# The kernel will do a better job of it than us.
mv ${TMPDIR}/initramfs-${KV} ${TMPDIR}/initramfs-${KV}.cpio
sed -i '/^.*CONFIG_INITRAMFS_SOURCE=.*$/d' ${KERNEL_DIR}/.config
compress_config='INITRAMFS_COMPRESSION_NONE'
case ${compress_ext} in
gz) compress_config='INITRAMFS_COMPRESSION_GZIP' ;;
bz2) compress_config='INITRAMFS_COMPRESSION_BZIP2' ;;
lzma) compress_config='INITRAMFS_COMPRESSION_LZMA' ;;
xz) compress_config='INITRAMFS_COMPRESSION_XZ' ;;
lzo) compress_config='INITRAMFS_COMPRESSION_LZO' ;;
*) compress_config='INITRAMFS_COMPRESSION_NONE' ;;
esac
# All N default except XZ, so there it gets used if the kernel does
# compression on it's own.
cat >>${KERNEL_DIR}/.config <<-EOF
CONFIG_INITRAMFS_SOURCE="${TMPDIR}/initramfs-${KV}.cpio${compress_ext}"
CONFIG_INITRAMFS_ROOT_UID=0
CONFIG_INITRAMFS_ROOT_GID=0
CONFIG_INITRAMFS_COMPRESSION_NONE=n
CONFIG_INITRAMFS_COMPRESSION_GZIP=n
CONFIG_INITRAMFS_COMPRESSION_BZIP2=n
CONFIG_INITRAMFS_COMPRESSION_LZMA=n
CONFIG_INITRAMFS_COMPRESSION_XZ=y
CONFIG_INITRAMFS_COMPRESSION_LZO=n
CONFIG_${compress_config}=y
EOF
else
if isTrue "${COMPRESS_INITRD}"
then
# NOTE: We do not work with ${KERNEL_CONFIG} here, since things like
# "make oldconfig" or --noclean could be in effect.
if [ -f "${KERNEL_DIR}"/.config ]; then
local ACTUAL_KERNEL_CONFIG="${KERNEL_DIR}"/.config
else
local ACTUAL_KERNEL_CONFIG="${KERNEL_CONFIG}"
fi
if [[ "$(file --brief --mime-type "${ACTUAL_KERNEL_CONFIG}")" == application/x-gzip ]]; then
# Support --kernel-config=/proc/config.gz, mainly
local CONFGREP=zgrep
else
local CONFGREP=grep
fi
cmd_xz=$(type -p xz)
cmd_lzma=$(type -p lzma)
cmd_bzip2=$(type -p bzip2)
cmd_gzip=$(type -p gzip)
cmd_lzop=$(type -p lzop)
pkg_xz='app-arch/xz-utils'
pkg_lzma='app-arch/xz-utils'
pkg_bzip2='app-arch/bzip2'
pkg_gzip='app-arch/gzip'
pkg_lzop='app-arch/lzop'
local compression
case ${COMPRESS_INITRD_TYPE} in
xz|lzma|bzip2|gzip|lzop) compression=${COMPRESS_INITRD_TYPE} ;;
lzo) compression=lzop ;;
best|fastest)
for tuple in \
'CONFIG_RD_XZ cmd_xz xz' \
'CONFIG_RD_LZMA cmd_lzma lzma' \
'CONFIG_RD_BZIP2 cmd_bzip2 bzip2' \
'CONFIG_RD_GZIP cmd_gzip gzip' \
'CONFIG_RD_LZO cmd_lzop lzop'; do
set -- ${tuple}
kernel_option=$1
cmd_variable_name=$2
if ${CONFGREP} -q "^${kernel_option}=y" "${ACTUAL_KERNEL_CONFIG}" && test -n "${!cmd_variable_name}" ; then
compression=$3
[[ ${COMPRESS_INITRD_TYPE} == best ]] && break
fi
done
[[ -z "${compression}" ]] && gen_die "None of the initramfs compression methods we tried are supported by your kernel (config file \"${ACTUAL_KERNEL_CONFIG}\"), strange!?"
;;
*)
gen_die "Compression '${COMPRESS_INITRD_TYPE}' unknown"
;;
esac
# Check for actual availability
cmd_variable_name=cmd_${compression}
pkg_variable_name=pkg_${compression}
[[ -z "${!cmd_variable_name}" ]] && gen_die "Compression '${compression}' is not available. Please install package '${!pkg_variable_name}'."
case $compression in
xz) compress_ext='.xz' compress_cmd="${cmd_xz} -e --check=none -z -f -9" ;;
lzma) compress_ext='.lzma' compress_cmd="${cmd_lzma} -z -f -9" ;;
bzip2) compress_ext='.bz2' compress_cmd="${cmd_bzip2} -z -f -9" ;;
gzip) compress_ext='.gz' compress_cmd="${cmd_gzip} -f -9" ;;
lzop) compress_ext='.lzo' compress_cmd="${cmd_lzop} -f -9" ;;
esac
if [ -n "${compression}" ]; then
print_info 1 " >> Compressing cpio data (${compress_ext})..."
${compress_cmd} "${CPIO}" || gen_die "Compression (${compress_cmd}) failed"
mv -f "${CPIO}${compress_ext}" "${CPIO}" || gen_die "Rename failed"
else
print_info 1 " >> Not compressing cpio data ..."
fi
fi
fi
if isTrue "${CMD_INSTALL}"
then
if ! isTrue "${INTEGRATED_INITRAMFS}"
then
copy_image_with_preserve "initramfs" \
"${TMPDIR}/initramfs-${KV}" \
"initramfs-${KNAME}-${ARCH}-${KV}"
fi
fi
}
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