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gen_initramfs.sh
executable file
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gen_initramfs.sh
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#!/bin/bash
# $Id$
COPY_BINARIES=false
CPIO_ARGS="--quiet -o -H newc --owner root:root --force-local"
# 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 [email protected].
#
# 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 <[email protected]> (error checking)
# - Robin H. Johnson <[email protected]> (complete rewrite)
# - Richard Yao <[email protected]> (original concept)
# Usage:
# copy_binaries DESTDIR BINARIES...
copy_binaries() {
local destdir=$1
shift
COPY_BINARIES=true
for binary in "$@"; 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 ${binary} is linked to missing libraries and may need to be re-built"
fi
done
# This must be OUTSIDE the for loop, we only want to run lddtree etc ONCE.
# lddtree does not have the -V (version) nor the -l (list) options prior to version 1.18
(
if lddtree -V > /dev/null 2>&1 ; then
lddtree -l "$@" \
|| gen_die "Binary ${f} or some of its library dependencies could not be copied"
else
lddtree "$@" \
| tr ')(' '\n' \
| awk '/=>/{ if($3 ~ /^\//){print $3}}' \
|| gen_die "Binary ${f} or some of its library dependencies could not be copied"
fi ) \
| sort \
| uniq \
| cpio -p --make-directories --dereference --quiet "${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 '${PWD}' to cpio archive:"
find . | xargs ls -ald
echo =================================================================
fi
}
append_devices() {
# WARNING, does NOT support appending to cpio!
cat >"${TEMP}/initramfs-base-temp.devices" <<-EOF
dir /dev 0755 0 0
nod /dev/console 660 0 0 c 5 1
nod /dev/null 660 0 0 c 1 3
nod /dev/zero 660 0 0 c 1 5
nod /dev/tty0 600 0 0 c 4 0
nod /dev/tty1 600 0 0 c 4 1
nod /dev/ttyS0 600 0 0 c 4 64
EOF
if [[ "${LOGLEVEL}" -gt 1 ]]; then
echo "Adding devices to cpio:"
cat "${TEMP}/initramfs-base-temp.devices"
fi
${KERNEL_OUTPUTDIR}/usr/gen_init_cpio "${TEMP}/initramfs-base-temp.devices" >"${CPIO}" \
|| gen_die "Failed to add devices to cpio"
}
append_base_layout() {
if [ -d "${TEMP}/initramfs-base-temp" ]
then
rm -rf "${TEMP}/initramfs-base-temp" > /dev/null
fi
mkdir -p ${TEMP}/initramfs-base-temp/dev
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
ln -s lib ${TEMP}/initramfs-base-temp/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
date -u '+%Y%m%d-%H%M%S' > ${TEMP}/initramfs-base-temp/etc/build_date
echo "Genkernel $GK_V" > ${TEMP}/initramfs-base-temp/etc/build_id
# The ZFS tools want the hostid in order to find the right pool.
# Assume the initramfs we're building is for this system, so copy
# our current hostid into it.
# We also have to deal with binary+endianness here: glibc's gethostid
# expects the value to be in binary using the native endianness. But
# the coreutils hostid program doesn't show it in the right form.
local hostid
if file -L "${TEMP}/initramfs-base-temp/bin/sh" | grep -q 'MSB executable'; then
hostid="$(hostid)"
else
hostid="$(hostid | sed -E 's/(..)(..)(..)(..)/\4\3\2\1/')"
fi
printf "$(echo "${hostid}" | sed 's/\([0-9A-F]\{2\}\)/\\x\1/gI')" > ${TEMP}/initramfs-base-temp/etc/hostid
mkdir -p "${TEMP}/initramfs-base-temp/etc/mdev/helpers"
install -m 644 -t "${TEMP}/initramfs-base-temp/etc" /usr/share/genkernel/mdev/mdev.conf
install -m 755 -t "${TEMP}/initramfs-base-temp/etc/mdev/helpers" /usr/share/genkernel/mdev/helpers/nvme
install -m 755 -t "${TEMP}/initramfs-base-temp/etc/mdev/helpers" /usr/share/genkernel/mdev/helpers/storage-device
cd "${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 "${TEMP}/initramfs-busybox-temp/bin/"
tar -xf "${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 echo cut cat"
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_fuse() {
# if [ -d "${TEMP}/initramfs-fuse-temp" ]
# then
# rm -r "${TEMP}/initramfs-fuse-temp"
# fi
# cd ${TEMP}
# mkdir -p "${TEMP}/initramfs-fuse-temp/lib/"
# tar -C "${TEMP}/initramfs-fuse-temp/lib/" -xf "${FUSE_BINCACHE}"
# cd "${TEMP}/initramfs-fuse-temp/"
# find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
# || gen_die "compressing fuse cpio"
# rm -rf "${TEMP}/initramfs-fuse-temp" > /dev/null
#}
append_unionfs_fuse() {
if [ -d "${TEMP}/initramfs-unionfs-fuse-temp" ]
then
rm -r "${TEMP}/initramfs-unionfs-fuse-temp"
fi
cd ${TEMP}
mkdir -p "${TEMP}/initramfs-unionfs-fuse-temp/sbin/"
bzip2 -dc "${UNIONFS_FUSE_BINCACHE}" > "${TEMP}/initramfs-unionfs-fuse-temp/sbin/unionfs" ||
gen_die 'Could not extract unionfs-fuse binary cache!'
chmod a+x "${TEMP}/initramfs-unionfs-fuse-temp/sbin/unionfs"
cd "${TEMP}/initramfs-unionfs-fuse-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing unionfs fuse cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-unionfs-fuse-temp" > /dev/null
}
#append_suspend(){
# if [ -d "${TEMP}/initramfs-suspend-temp" ];
# then
# rm -r "${TEMP}/initramfs-suspend-temp/"
# fi
# print_info 1 'SUSPEND: Adding support (compiling binaries)...'
# compile_suspend
# mkdir -p "${TEMP}/initramfs-suspend-temp/"
# /bin/tar -xpf "${SUSPEND_BINCACHE}" -C "${TEMP}/initramfs-suspend-temp" ||
# gen_die "Could not extract suspend binary cache!"
# mkdir -p "${TEMP}/initramfs-suspend-temp/etc"
# cp -f /etc/suspend.conf "${TEMP}/initramfs-suspend-temp/etc" ||
# gen_die 'Could not copy /etc/suspend.conf'
# cd "${TEMP}/initramfs-suspend-temp/"
# log_future_cpio_content
# find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
# || gen_die "compressing suspend cpio"
# rm -r "${TEMP}/initramfs-suspend-temp/"
#}
append_multipath(){
if [ -d "${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 "${TEMP}/initramfs-multipath-temp" \
/bin/mountpoint \
/sbin/{multipath,kpartx,dmsetup} \
/{lib,lib64}/{udev/scsi_id,multipath/*so}
# Support multipath-tools-0.4.8 and previous
if [ -x /sbin/mpath_prio_* ]
then
copy_binaries "${TEMP}/initramfs-multipath-temp" \
/sbin/mpath_prio_*
fi
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 (compiling binaries)...'
compile_dmraid
mkdir -p "${TEMP}/initramfs-dmraid-temp/"
/bin/tar -xpf "${DMRAID_BINCACHE}" -C "${TEMP}/initramfs-dmraid-temp" ||
gen_die "Could not extract dmraid binary cache!";
[ -x /sbin/dmsetup -a -x /sbin/kpartx ] && copy_binaries \
"${TEMP}/initramfs-dmraid-temp/" \
/sbin/{kpartx,dmsetup}
cd "${TEMP}/initramfs-dmraid-temp/"
module_ext=$(modules_kext)
RAID456=`find . -type f -name raid456${module_ext}`
if [ -n "${RAID456}" ]
then
cd "${RAID456/raid456${module_ext}/}"
ln -sf raid456.kp $(basename ${RAID456})
cd "${TEMP}/initramfs-dmraid-temp/"
fi
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 (compiling binaries)...'
compile_iscsi
cd ${TEMP}
mkdir -p "${TEMP}/initramfs-iscsi-temp/bin/"
/bin/bzip2 -dc "${ISCSI_BINCACHE}" > "${TEMP}/initramfs-iscsi-temp/bin/iscsistart" ||
gen_die "Could not extract iscsi binary cache!"
chmod a+x "${TEMP}/initramfs-iscsi-temp/bin/iscsistart"
cd "${TEMP}/initramfs-iscsi-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing iscsi cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-iscsi-temp" > /dev/null
}
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/"
mkdir -p "${TEMP}/initramfs-lvm-temp/sbin/"
mkdir -p "${TEMP}/initramfs-lvm-temp/etc/lvm/"
mkdir -p "${TEMP}/initramfs-lvm-temp/etc/lvm/cache"
if false && [ -e '/sbin/lvm.static' ]
then
print_info 1 ' LVM: Adding support (using local static binary /sbin/lvm.static)...'
cp /sbin/lvm.static "${TEMP}/initramfs-lvm-temp/sbin/lvm" ||
gen_die 'Could not copy over lvm!'
# See bug 382555
if [ -e '/sbin/dmsetup.static' ]
then
cp /sbin/dmsetup.static "${TEMP}/initramfs-lvm-temp/bin/dmsetup"
fi
elif false && [ -e '/sbin/lvm' ] && LC_ALL="C" ldd /sbin/lvm|grep -q 'not a dynamic executable'
then
print_info 1 ' LVM: Adding support (using local static binary /sbin/lvm)...'
cp /sbin/lvm "${TEMP}/initramfs-lvm-temp/sbin/lvm" ||
gen_die 'Could not copy over lvm!'
# See bug 382555
if [ -e '/sbin/dmsetup' ] && LC_ALL="C" ldd /sbin/dmsetup | grep -q 'not a dynamic executable'
then
cp /sbin/dmsetup "${TEMP}/initramfs-lvm-temp/bin/dmsetup"
fi
else
print_info 1 ' LVM: Adding support (compiling binaries)...'
compile_lvm || gen_die "Could not compile LVM"
/bin/tar -xpf "${LVM_BINCACHE}" -C "${TEMP}/initramfs-lvm-temp" ||
gen_die "Could not extract lvm binary cache!";
# Remove any dynamic binaries that exist, so the rest of the code will
# fail better if something is missing
for f in ${TEMP}/initramfs-lvm-temp/{bin,sbin}/* ; do
[ -x "$f" ] && LC_ALL="C" ldd $f | grep -sq '(' && rm -f "$f"
done
# Now move the static binaries into good places.
mv ${TEMP}/initramfs-lvm-temp/sbin/lvm.static ${TEMP}/initramfs-lvm-temp/sbin/lvm ||
gen_die 'LVM error: Could not move lvm.static to lvm!'
# See bug 382555; use /sbin/dmsetup to match multipath code
mv ${TEMP}/initramfs-lvm-temp/sbin/dmsetup.static ${TEMP}/initramfs-lvm-temp/sbin/dmsetup ||
gen_die 'LVM error: Could not move dmsetup.static to dmsetup!'
# Clean up other stuff we don't need
rm -rf ${TEMP}/initramfs-lvm-temp/{lib*,share,man,include,sbin/dmeventd.static}
fi
# Include a symlink in the old location, for people with other appended
# scripts that might look for it in the old location.
ln -s ../sbin/lvm "${TEMP}/initramfs-lvm-temp/bin/lvm"
# Include the LVM config now
if [ -x /sbin/lvm -o -x /bin/lvm ]
then
# lvm dumpconfig 2>&1 > /dev/null || gen_die 'Could not copy over lvm.conf!'
# ret=$?
# if [ ${ret} != 0 ]
# then
cp /etc/lvm/lvm.conf "${TEMP}/initramfs-lvm-temp/etc/lvm/" || \
gen_die 'Could not copy over lvm.conf!'
# else
# gen_die 'Could not copy over lvm.conf!'
# fi
# Some LVM config options need changing, because the functionality is
# not compiled in:
sed -r -i \
-e '/^[[:space:]]*obtain_device_list_from_udev/s,=.*,= 0,g' \
-e '/^[[:space:]]*use_lvmetad/s,=.*,= 0,g' \
-e '/^[[:space:]]*monitoring/s,=.*,= 0,g' \
-e '/^[[:space:]]*external_device_info_source/s,=.*,= "none",g' \
-e '/^[[:space:]]*units/s,=.*"r",= "h",g' \
"${TEMP}/initramfs-lvm-temp/etc/lvm/lvm.conf" || \
gen_die 'Could not sed lvm.conf!'
fi
cd "${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 "${TEMP}/initramfs-mdadm-temp/sbin/"
if [ "${MDADM}" = '1' ]
then
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 "${MDADM_CONFIG} does not exist!"
fi
else
print_info 1 ' MDADM: Skipping inclusion of mdadm.conf'
fi
if [ -e '/sbin/mdadm' ] && LC_ALL="C" ldd /sbin/mdadm | grep -q 'not a dynamic executable' \
&& [ -e '/sbin/mdmon' ] && LC_ALL="C" ldd /sbin/mdmon | grep -q 'not a dynamic executable'
then
print_info 1 ' MDADM: Adding support (using local static binaries /sbin/mdadm and /sbin/mdmon)...'
cp /sbin/mdadm /sbin/mdmon "${TEMP}/initramfs-mdadm-temp/sbin/" ||
gen_die 'Could not copy over mdadm!'
else
print_info 1 ' MDADM: Adding support (compiling binaries)...'
compile_mdadm
/bin/tar -xpf "${MDADM_BINCACHE}" -C "${TEMP}/initramfs-mdadm-temp" ||
gen_die "Could not extract mdadm binary cache!";
fi
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 ${i} for ZFS"
fi
done
# Copy binaries
# Include libgcc_s.so.1 to workaround zfsonlinux/zfs#4749
local libgccpath
if type gcc-config 2>&1 1>/dev/null; then
libgccpath="/usr/lib/gcc/$(s=$(gcc-config -c); echo ${s%-*}/${s##*-})/libgcc_s.so.1"
fi
if [[ ! -f ${libgccpath} ]]; then
libgccpath="/usr/lib/gcc/*/*/libgcc_s.so.1"
fi
copy_binaries "${TEMP}/initramfs-zfs-temp" /sbin/{mount.zfs,zdb,zfs,zpool} ${libgccpath}
cd "${TEMP}/initramfs-zfs-temp/lib64"
ln -s "..${libgccpath}"
cd "${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_btrfs() {
if [ -d "${TEMP}/initramfs-btrfs-temp" ]
then
rm -r "${TEMP}/initramfs-btrfs-temp"
fi
mkdir -p "${TEMP}/initramfs-btrfs-temp"
# Copy binaries
copy_binaries "${TEMP}/initramfs-btrfs-temp" /sbin/btrfs
cd "${TEMP}/initramfs-btrfs-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing btrfs cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-btrfs-temp" > /dev/null
}
append_linker() {
if [ -d "${TEMP}/initramfs-linker-temp" ]
then
rm -r "${TEMP}/initramfs-linker-temp"
fi
mkdir -p "${TEMP}/initramfs-linker-temp/etc"
if [ -e "/etc/ld.so.conf" ]
then
cp "/etc/ld.so.conf" "${TEMP}/initramfs-linker-temp/etc/" 2> /dev/null \
|| gen_die "Could not copy ld.so.conf"
fi
if [ -e "/etc/ld.so.cache" ]
then
cp "/etc/ld.so.cache" "${TEMP}/initramfs-linker-temp/etc/" 2> /dev/null \
|| gen_die "Could not copy ld.so.cache"
fi
if [ -d "/etc/ld.so.conf.d" ]
then
mkdir -p "${TEMP}/initramfs-linker-temp/etc/ld.so.conf.d"
cp -r "/etc/ld.so.conf.d" "${TEMP}/initramfs-linker-temp/etc/" 2> /dev/null \
|| gen_die "Could not copy ld.so.conf.d"
fi
cd "${TEMP}/initramfs-linker-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing linker cpio"
cd "${TEMP}"
rm -rf "${TEMP}/initramfs-linker-temp" > /dev/null
}
append_splash(){
splash_geninitramfs=`which splash_geninitramfs 2>/dev/null`
if [ -x "${splash_geninitramfs}" ] && grep -q -E '^CONFIG_FRAMEBUFFER_CONSOLE=[y|m]' ${KERNEL_CONFIG}
then
[ -z "${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_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_dropbear(){
if [ -d "${TEMP}"/initramfs-dropbear-temp ]
then
rm -r "${TEMP}"/initramfs-dropbear-temp
fi
if [ ! -d /etc/dropbear ]
then
mkdir /etc/dropbear
fi
if [ ! -e /etc/dropbear/dropbear_rsa_host_key ]
then
if [ -e /usr/bin/dropbearconvert -a /etc/ssh/ssh_host_rsa_key ]
then
/usr/bin/dropbearconvert openssh dropbear /etc/ssh/ssh_host_rsa_key /etc/dropbear/dropbear_rsa_host_key
else
/usr/bin/dropbearkey -t rsa -f /etc/dropbear/dropbear_rsa_host_key -s 4096 > /dev/null
fi
fi
if [ ! -e /etc/dropbear/dropbear_dss_host_key ]
then
/usr/bin/dropbearkey -t dss -f /etc/dropbear/dropbear_dss_host_key > /dev/null
fi
cd "${TEMP}" \
|| gen_die "cd '${TEMP}' failed"
mkdir -p ${TEMP}/initramfs-dropbear-temp/var/run
mkdir -p ${TEMP}/initramfs-dropbear-temp/var/log
mkdir -p ${TEMP}/initramfs-dropbear-temp/etc/dropbear
mkdir -p ${TEMP}/initramfs-dropbear-temp/bin
mkdir -p ${TEMP}/initramfs-dropbear-temp/root/.ssh
cp -L ${GK_SHARE}/defaults/login-remote.sh ${TEMP}/initramfs-dropbear-temp/bin/
cp -L /etc/dropbear/{dropbear_rsa_host_key,dropbear_dss_host_key} ${TEMP}/initramfs-dropbear-temp/etc/dropbear/
cp -L /etc/dropbear/authorized_keys ${TEMP}/initramfs-dropbear-temp/root/.ssh
cp -L /etc/localtime ${TEMP}/initramfs-dropbear-temp/etc/
if [ ${ARCH} = "x86_64" ]
then
mkdir -p ${TEMP}/initramfs-dropbear-temp/lib64
cp -L /lib64/libnss_files.so.2 ${TEMP}/initramfs-dropbear-temp/lib64/
else
mkdir -p ${TEMP}/initramfs-dropbear-temp/lib
cp -L /lib/libnss_files.so.2 ${TEMP}/initramfs-dropbear-temp/lib/
fi
sed "s/compat/files/g" /etc/nsswitch.conf > ${TEMP}/initramfs-dropbear-temp/etc/nsswitch.conf
echo "root:x:0:0:root:/root:/bin/login-remote.sh" > ${TEMP}/initramfs-dropbear-temp/etc/passwd
echo "/bin/login-remote.sh" > ${TEMP}/initramfs-dropbear-temp/etc/shells
echo "root:!:0:0:99999:7:::" > ${TEMP}/initramfs-dropbear-temp/etc/shadow
echo "root:x:0:root" > ${TEMP}/initramfs-dropbear-temp/etc/group
echo "" > ${TEMP}/initramfs-dropbear-temp/var/log/lastlog
chmod 0755 ${TEMP}/initramfs-dropbear-temp/bin/login-remote.sh
chmod 0700 ${TEMP}/initramfs-dropbear-temp/root/.ssh
chmod 0640 ${TEMP}/initramfs-dropbear-temp/etc/shadow
chmod 0644 ${TEMP}/initramfs-dropbear-temp/etc/passwd
chmod 0644 ${TEMP}/initramfs-dropbear-temp/etc/group
mkfifo ${TEMP}/initramfs-dropbear-temp/etc/dropbear/fifo_root
mkfifo ${TEMP}/initramfs-dropbear-temp/etc/dropbear/fifo_swap
copy_binaries "${TEMP}"/initramfs-dropbear-temp/ /usr/sbin/dropbear \
/bin/login /usr/bin/passwd
log_future_cpio_content
cd "${TEMP}"/initramfs-dropbear-temp \
|| gen_die "cd '${TEMP}/initramfs-dropbear-temp' failed"
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
rm -rf "${TEMP}"/initramfs-dropbear-temp > /dev/null
}
append_firmware() {
if [ -z "${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
cd ${TEMP}
mkdir -p "${TEMP}/initramfs-gpg-temp/sbin/"
if [ ! -e ${GPG_BINCACHE} ] ; then
print_info 1 ' GPG: Adding support (compiling binaries)...'
compile_gpg
fi
bzip2 -dc "${GPG_BINCACHE}" > "${TEMP}/initramfs-gpg-temp/sbin/gpg" ||
gen_die 'Could not extract gpg binary cache!'
chmod a+x "${TEMP}/initramfs-gpg-temp/sbin/gpg"
cd "${TEMP}/initramfs-gpg-temp/"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
rm -rf "${TEMP}/initramfs-gpg-temp" > /dev/null
}
print_list()
{
local x
for x in ${*}
do
echo ${x}
done
}
append_modules() {
local group
local group_modules
local MOD_EXT="$(modules_kext)"
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-${KV}-temp/"
}
append_modprobed() {
local TDIR="${TEMP}/initramfs-modprobe.d-temp"
if [ -d "${TDIR}" ]
then
rm -r "${TDIR}"
fi
mkdir -p "${TDIR}/etc"
cp -r "/etc/modprobe.d" "${TDIR}/etc/modprobe.d"
cd "${TDIR}"
log_future_cpio_content
find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
|| gen_die "compressing modprobe.d cpio"
cd "${TEMP}"
rm -rf "${TDIR}" > /dev/null
}
# 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}':" "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
fi
printf "%s" 'HWOPTS="$HWOPTS ' >> "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
for group_modules in ${!MODULES_*}; do
group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
printf "%s" "${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}"
append_data 'devices' # WARNING, must be first!
append_data 'base_layout'
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 'dropbear' "${SSH}"
append_data 'multipath' "${MULTIPATH}"
append_data 'gpg' "${GPG}"
if [ "${RAMDISKMODULES}" = '1' ]
then
append_data 'modules'
else
print_info 1 "initramfs: Not copying modules..."
fi
append_data 'zfs' "${ZFS}"
append_data 'btrfs' "${BTRFS}"
append_data 'blkid' "${DISKLABEL}"
append_data 'unionfs_fuse' "${UNIONFS}"
append_data 'splash' "${SPLASH}"
append_data 'modprobed'
if isTrue "${FIRMWARE}" && [ -n "${FIRMWARE_DIR}" ]
then
append_data 'firmware'
fi