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: /usr/share/initramfs-tools/ [ drwxr-xr-x ]
name : hook-functions # -*- shell-script -*- catenate_cpiogz() { # Sanity check if [ ! -e "${1}" ]; then echo "W: catenate_cpiogz: arg1='${1}' does not exist." >&2 return fi cat "${1}" >>"${__TMPCPIOGZ}" } prepend_earlyinitramfs() { # Sanity check if [ ! -e "${1}" ]; then echo "W: prepend_earlyinitramfs: arg1='${1}' does not exist." >&2 return fi cat "${1}" >>"${__TMPEARLYCPIO}" } # force_load module [args...] force_load() { manual_add_modules "$1" echo "${@}" >>"${DESTDIR}/conf/modules" } # Takes a file containing a list of modules to be added as an # argument, figures out dependancies, and adds them. # # Input file syntax: # # # comment # modprobe_module_name [args ...] # [...] # add_modules_from_file() { # Sanity check if [ ! -e "${1}" ]; then echo "W: add_modules_from_file: arg1='${1}' does not exist." >&2 return fi grep '^[^#]' "${1}" | while read -r module args; do [ -n "$module" ] || continue force_load "${module}" "${args}" done } # Is this module available? have_module() { modprobe --set-version="${version?}" --ignore-install \ --show-depends "${1}" >/dev/null 2>&1 } # Add dependent modules + eventual firmware manual_add_modules() { local prefix kmod options firmware if [ $# -eq 0 ]; then return fi # modprobe --ignore-install inhibits processing of 'install' # configuration lines, so that instead we will see 'insmod # module.ko' as we want. However it also means that 'softdep' # configuration lines and embedded softdep information is not # processed. So we run twice, with and without this option. # shellcheck disable=SC2034 { modprobe --all --set-version="${version?}" --ignore-install --quiet --show-depends "$@"; modprobe --all --set-version="${version}" --quiet --show-depends "$@"; } | while read -r prefix kmod options ; do if [ "${prefix}" != "insmod" ]; then continue fi copy_file module "${kmod}" || continue # Add required firmware for firmware in $(modinfo -k "${version}" -F firmware "${kmod}"); do if [ -e "${DESTDIR}/lib/firmware/${firmware}" ] \ || [ -e "${DESTDIR}/lib/firmware/${version}/${firmware}" ] \ || [ -e "${DESTDIR}/lib/firmware/updates/${firmware}" ] \ || [ -e "${DESTDIR}/lib/firmware/updates/${version}/${firmware}" ]; then continue fi # Only print warning for missing fw of loaded module # or forced loaded module if [ ! -e "/lib/firmware/${firmware}" ] \ && [ ! -e "/lib/firmware/${version}/${firmware}" ] \ && [ ! -e "/lib/firmware/updates/${firmware}" ] \ && [ ! -e "/lib/firmware/updates/${version}/${firmware}" ]; then # Only warn about missing firmware if # /proc/modules exists if [ ! -e /proc/modules ] ; then continue fi kmod_modname="${kmod##*/}" kmod_modname="${kmod_modname%%.*}" if grep -q "^$kmod_modname\\>" /proc/modules "${CONFDIR}/modules"; then echo "W: Possible missing firmware /lib/firmware/${firmware} for module ${kmod_modname}" >&2 fi continue fi for fwloc in "/lib/firmware/updates/${version}/${firmware}" \ "/lib/firmware/updates/${firmware}" \ "/lib/firmware/${version}/${firmware}" \ "/lib/firmware/${firmware}"; do if [ -e "$fwloc" ]; then copy_file firmware "$fwloc" break fi done done done } # $1 = file type (for logging) # $2 = file to copy to initramfs # $3 (optional) Name for the file on the initramfs # Location of the image dir is assumed to be $DESTDIR # If the target exists, we leave it and return 1. # On any other error, we return >1. copy_file() { local type src target link_target type="${1}" src="${2}" target="${3:-$2}" [ -f "${src}" ] || return 2 if [ -d "${DESTDIR}/${target}" ]; then target="${target}/${src##*/}" fi # Canonicalise usr-merged target directories case "${target}" in /bin/* | /lib* | /sbin/*) target="/usr${target}" ;; esac # check if already copied [ -e "${DESTDIR}/${target}" ] && return 1 mkdir -p "${DESTDIR}/${target%/*}" if [ -h "${src}" ]; then # We don't need to replicate a chain of links completely; # just link directly to the ultimate target link_target="$(readlink -f "${src}")" || return $(($? + 1)) # Update source for the copy src="${link_target}" # Canonicalise usr-merged target directories case "${link_target}" in /bin/* | /lib* | /sbin/*) link_target="/usr${link_target}" ;; esac if [ "${link_target}" != "${target}" ]; then [ "${verbose?}" = "y" ] && echo "Adding ${type}-link ${src}" # Create a relative link so it always points # to the right place ln -rs "${DESTDIR}/${link_target}" "${DESTDIR}/${target}" fi # Copy the link target if it doesn't already exist target="${link_target}" [ -e "${DESTDIR}/${target}" ] && return 0 mkdir -p "${DESTDIR}/${target%/*}" fi [ "${verbose}" = "y" ] && echo "Adding ${type} ${src}" cp -pP "${src}" "${DESTDIR}/${target}" || return $(($? + 1)) } # $1 = executable to copy to initramfs, with library dependencies # $2 (optional) Name for the file on the initramfs # Location of the image dir is assumed to be $DESTDIR # We never overwrite the target if it exists. copy_exec() { local src target x nonoptlib ret src="${1}" target="${2:-$1}" copy_file binary "${src}" "${target}" || return $(($? - 1)) # Copy the dependant libraries for x in $(env --unset=LD_PRELOAD ldd "${src}" 2>/dev/null | sed -e ' /\//!d; /linux-gate/d; /=>/ {s/.*=>[[:blank:]]*\([^[:blank:]]*\).*/\1/}; s/[[:blank:]]*\([^[:blank:]]*\) (.*)/\1/' 2>/dev/null); do # Try to use non-optimised libraries where possible. # We assume that all HWCAP libraries will be in tls, # sse2, vfp or neon. nonoptlib=$(echo "${x}" | sed -e 's#/lib/\([^/]*/\)\?\(tls\|i686\|sse2\|neon\|vfp\).*/\(lib.*\)#/lib/\1\3#') nonoptlib=$(echo "${nonoptlib}" | sed -e 's#-linux-gnu/\(tls\|i686\|sse2\|neon\|vfp\).*/\(lib.*\)#-linux-gnu/\2#') if [ -e "${nonoptlib}" ]; then x="${nonoptlib}" fi # Handle common dlopen() dependency (Debian bug #950254) case "${x}" in */libpthread.so.*) copy_exec "/lib/libgcc_s.so.1" || copy_exec "${x%/*}/libgcc_s.so.1" || copy_exec "${x%/*}/../libgcc_s.so.1" || return ;; esac copy_file library "${x}" || { ret=$? [ ${ret} = 1 ] || return $((ret - 1)) } done } # Copy entire subtrees to the initramfs copy_modules_dir() { local kmod first exclude local modules= local dir="$1" shift if ! [ -d "${MODULESDIR}/${dir}" ]; then return; fi if [ "${verbose}" = "y" ]; then echo "Copying module directory ${dir}" if [ $# -ge 1 ]; then echo "(excluding $*)" fi fi # Build up an expression for find first=true for exclude in "$@"; do # Change .ko suffix in exclusion to .ko* if [ "${exclude%.ko}" != "${exclude}" ]; then exclude="${exclude}*" fi $first && set -- set -- "$@" -name "${exclude}" -prune -o first=false done # shellcheck disable=SC2044 for kmod in $(find "${MODULESDIR}/${dir}" "$@" -name '*.ko*' -printf '%f\n'); do modules="$modules ${kmod%%.*}" done # shellcheck disable=SC2086 manual_add_modules $modules } # walk /sys for relevant modules sys_walk_mod_add() { local driver_path module device_path modalias device_path="$1" while [ "${device_path}" != "/sys" ]; do # device modalias if [ -e "${device_path}/modalias" ]; then modalias=$(cat "${device_path}/modalias") if [ -n "${modalias}" ]; then manual_add_modules "${modalias}" fi fi # current driver module driver_path="$(readlink -f "${device_path}/driver/module")" if [ -e "$driver_path" ]; then module="$(basename "$(readlink -f "$driver_path")")" if [ -n "${module}" ]; then manual_add_modules "${module}" fi fi device_path="$(dirname "${device_path}")" done } nvme_dev_sys_walk_mod_add() { local dev_sys_path component nvme_sys_path dev_sys_path="$(readlink -f "$1")" if ! echo "$dev_sys_path" | grep -q "nvme-subsys"; then return fi for component in "$dev_sys_path"/nvme* ; do if [ -L "$component" ] ; then nvme_sys_path=$(readlink -f "$component") sys_walk_mod_add "$nvme_sys_path" fi done } block_dev_sys_walk_mod_add() { local dev_sys_path disk_sys_path component # Resolve symlink so sys_walk_mod_add can walk up the hierarchy dev_sys_path="$(readlink -f "$1")" # Find whole disk from partition if grep -q "^DEVTYPE=partition$" "$dev_sys_path/uevent"; then disk_sys_path="$dev_sys_path/.." else disk_sys_path="$dev_sys_path" fi # Iterate over component of a layered device find "$disk_sys_path/slaves" -mindepth 1 -maxdepth 1 | while read -r component; do block_dev_sys_walk_mod_add "$component" done nvme_dev_sys_walk_mod_add "$disk_sys_path/device" sys_walk_mod_add "${dev_sys_path}" } block_dev_mod_add() { local dev_node dev_num dev_sys_path dev_node="$1" # Look up device number and convert to decimal as it appears in sysfs dev_num="$(stat -L -c %t:%T "$dev_node")" dev_num="$((0x${dev_num%:*})):$((0x${dev_num#*:}))" # Look up device in sysfs dev_sys_path="/sys/dev/block/$dev_num" if [ ! -d "$dev_sys_path" ]; then echo "mkinitramfs: for device ${dev_node} missing ${dev_sys_path}" >&2 echo "mkinitramfs: workaround is MODULES=most" >&2 echo "mkinitramfs: Error please report the bug" >&2 exit 1 fi block_dev_sys_walk_mod_add "$dev_sys_path" } # Copy all loaded or built-in modules matching the given pattern. # Pattern mustn't include directory or '.ko' suffix but should use # '[-_]' to allow for differences in naming between /sys/module and # modules.builtin. add_loaded_modules() { local pattern="$1" local module builtin builtin="/lib/modules/$(uname -r)/modules.builtin" for module in /sys/module/$pattern; do if [ -d "$module" ]; then manual_add_modules "$(basename "$module")" fi done if [ -f "$builtin" ]; then while read -r module; do case "$module" in */$pattern.ko) manual_add_modules "$(basename "$module" .ko)" ;; esac done < "$builtin" fi } # find and only copy modules relevant to a mountpoint dep_add_modules_mount() { local dir dev_node FSTYPE dir="$1" # require mounted sysfs if [ ! -d /sys/devices/ ]; then echo "mkinitramfs: MODULES dep requires mounted sysfs on /sys" >&2 exit 1 fi # find out block device + fstype # shellcheck disable=SC2034 eval "$(while read -r dev mp fs opts rest ; do \ [ "$mp" = "$dir" ] && [ "$fs" != "rootfs" ] \ && printf "dev_node=%s\\nFSTYPE=%s" "$dev" "$fs"\ && break; done < /proc/mounts)" # Only the root mountpoint has to exist; do nothing if any other # directory is not a mountpoint. if [ "$dir" != / ] && [ -z "$dev_node" ]; then return fi # handle ubifs and return since ubifs is mounted on char devices # but most of the commands below only work with block devices. if [ "${FSTYPE}" = "ubifs" ]; then manual_add_modules "${FSTYPE}" return fi if [ "${FSTYPE}" = "zfs" ]; then manual_add_modules "${FSTYPE}" # ZFS uses the name of a filesystem instead of a device. Find # the devices that make up the pool containing the specified # filesystem, and add the appropriate driver for each device. local poolname="${dev_node%%/*}" # shellcheck disable=SC2034 zpool list -vPL "$poolname" | while read -r dev ignored; do # Ignore non-leaf vdevs by skipping anything that doesn't # look like an absolute path echo "$dev" | grep -q '^/' && block_dev_mod_add "$dev" done return fi if [ "$dir" = / ] && [ "${dev_node}" = "/dev/root" ] ; then if [ -b "${dev_node}" ]; then # Match it to the canonical device name by UUID dev_node="/dev/disk/by-uuid/"$(blkid -o value -s UUID "${dev_node}") 2>/dev/null else # Does not exist in our namespace, so look at the # kernel command line dev_node= # shellcheck disable=SC2013 for arg in $(cat /proc/cmdline); do case "$arg" in root=*) dev_node="${arg#root=}" if [ "${dev_node#/dev/}" = "$dev_node" ]; then dev_node="/dev/$dev_node" fi ;; --) break ;; *) ;; esac done fi fi # recheck device if [ -z "$dev_node" ] || ! dev_node="$(readlink -f "${dev_node}")" \ || ! [ -b "$dev_node" ]; then echo "mkinitramfs: failed to determine device for $dir" >&2 echo "mkinitramfs: workaround is MODULES=most, check:" >&2 echo "grep -r MODULES ${CONFDIR}" >&2 echo "" >&2 echo "Error please report bug on initramfs-tools" >&2 echo "Include the output of 'mount' and 'cat /proc/mounts'" >&2 exit 1 fi # do not trust mount, check superblock FSTYPE=$(blkid -o value -s TYPE "${dev_node}") if [ -z "${FSTYPE}" ]; then echo "mkinitramfs: unknown fstype on device ${dev_node}" >&2 echo "mkinitramfs: workaround is MODULES=most" >&2 echo "Error please report bug on initramfs-tools" >&2 exit 1 fi # Add filesystem manual_add_modules "${FSTYPE}" block_dev_mod_add "$dev_node" } dep_add_modules() { local device dev_node local modules= dep_add_modules_mount / dep_add_modules_mount /usr if [ -n "${RESUME}" ]; then dev_node="$(resolve_device "${RESUME}")" if [ -n "${dev_node}" ]; then block_dev_mod_add "${dev_node}" fi fi # sys walk some important device classes for class in backlight extcon gpio phy pwm regulator rtc; do for device in "/sys/class/$class"/*; do device="$(readlink -f "$device")" \ && sys_walk_mod_add "$device" done done # clk, USB-PHY and pinctrl devices are outside the device model (!) so # match loaded modules by name add_loaded_modules 'clk[-_]*' add_loaded_modules 'phy[-_]*' add_loaded_modules 'pinctrl[-_]*' # Sys walk keyboards. We identify keyboards as input devices # that can generate at least key events 1-31; udev has the # same heuristic. Note that the format of the bitmap # properties depends on the word size of the process reading # the uevent file! for device in /sys/class/input/input*; do if grep -qs "^KEY=.*fffffff[ef]$" "${device}/uevent"; then sys_walk_mod_add "$(readlink -f "$device")" fi done # Sys walk graphics for machines that don't have a generic framebuffer # device and wouldn't have a working video console otherwise. walk_graphics=yes for device in /sys/bus/platform/drivers/efi-framebuffer/* \ /sys/bus/platform/drivers/platform-framebuffer/* \ /sys/bus/platform/drivers/simple-framebuffer/* \ /sys/bus/platform/drivers/vesa-framebuffer/*; do if [ -d "$device" ]; then walk_graphics=no break fi done if [ "$walk_graphics" = "yes" ]; then for device in /sys/class/graphics/*; do device="$(readlink -f "$device")" \ && sys_walk_mod_add "$device" done fi # catch old-style IDE if [ -e /sys/bus/ide/devices/ ]; then modules="$modules ide-gd_mod ide-cd" fi if [ -e /sys/bus/scsi/devices/ ]; then modules="$modules sd_mod" fi if [ -e /sys/bus/mmc/devices/ ]; then modules="$modules mmc_block" fi if [ -e /sys/bus/virtio ] ; then modules="$modules virtio_pci virtio_mmio" fi if [ -e /sys/bus/i2o/devices/ ]; then force_load i2o_block force_load i2o_config fi if [ -e /sys/bus/ps3_system_bus/ ]; then modules="$modules ps3disk ps3rom ps3-gelic ps3_sys_manager" fi if [ -e /sys/bus/vio/ ]; then modules="$modules sunvnet sunvdc" fi if [ -e /sys/devices/platform/edp-panel ]; then sys_walk_mod_add /sys/devices/platform/edp-panel fi # shellcheck disable=SC2086 manual_add_modules $modules } # The modules "most" classes added per default to the initramfs auto_add_modules() { local arg local modules= if [ "$#" -eq 0 ] ; then set -- base net ide scsi block ata i2o dasd ieee1394 firewire mmc usb_storage fb virtual nx fi for arg in "$@" ; do case "$arg" in base) modules="$modules btrfs ext2 ext3 ext4 f2fs" modules="$modules isofs jfs reiserfs squashfs udf xfs" modules="$modules nfs nfsv2 nfsv3 nfsv4" modules="$modules af_packet atkbd i8042 psmouse" modules="$modules virtio_pci virtio_mmio" # nls not automatically pulled in as ubuntu has built-in vfat modules="$modules vfat nls_cp437 nls_iso8859-1" # Include most USB host and dual-role drivers copy_modules_dir kernel/drivers/usb/host \ hwa-hc.ko sl811_cs.ko sl811-hcd.ko \ u132-hcd.ko whci-hcd.ko copy_modules_dir kernel/drivers/usb/c67x00 copy_modules_dir kernel/drivers/usb/chipidea copy_modules_dir kernel/drivers/usb/dwc2 copy_modules_dir kernel/drivers/usb/dwc3 copy_modules_dir kernel/drivers/usb/isp1760 copy_modules_dir kernel/drivers/usb/musb copy_modules_dir kernel/drivers/usb/renesas_usbhs # and any extcon drivers for USB modules="$modules extcon-usb-gpio extcon-usbc-cros-ec" # Add the axp20x_usb_power power supply driver, # required to initialize the USB host controllers # on a number of armhf systems modules="$modules axp20x_usb_power" # Include all keyboard drivers and all HID drivers # unless we're sure they don't support keyboards. # hid-*ff covers various game controllers with # force feedback. copy_modules_dir kernel/drivers/input/keyboard copy_modules_dir kernel/drivers/hid \ 'hid-*ff.ko' hid-a4tech.ko hid-cypress.ko \ hid-dr.ko hid-elecom.ko hid-gyration.ko \ hid-icade.ko hid-kensington.ko hid-kye.ko \ hid-lcpower.ko hid-magicmouse.ko \ hid-multitouch.ko hid-ntrig.ko \ hid-petalynx.ko hid-picolcd.ko hid-pl.ko \ hid-ps3remote.ko hid-quanta.ko \ 'hid-roccat-ko*.ko' hid-roccat-pyra.ko \ hid-saitek.ko hid-sensor-hub.ko hid-sony.ko \ hid-speedlink.ko hid-tivo.ko hid-twinhan.ko \ hid-uclogic.ko hid-wacom.ko hid-waltop.ko \ hid-wiimote.ko hid-zydacron.ko # needed to access keyboard on some ChromeOS devices modules="$modules cros_ec_spi" # Any of these might be needed by other drivers copy_modules_dir kernel/drivers/bus copy_modules_dir kernel/drivers/clk copy_modules_dir kernel/drivers/gpio copy_modules_dir kernel/drivers/i2c/busses copy_modules_dir kernel/drivers/i2c/muxes copy_modules_dir kernel/drivers/mfd copy_modules_dir kernel/drivers/phy copy_modules_dir kernel/drivers/pinctrl copy_modules_dir kernel/drivers/regulator copy_modules_dir kernel/drivers/spi copy_modules_dir kernel/drivers/usb/phy # Needed for periodic fsck copy_modules_dir kernel/drivers/rtc ;; net) copy_modules_dir kernel/drivers/net \ appletalk arcnet bonding can dummy.ko \ hamradio hippi ifb.ko irda macvlan.ko \ macvtap.ko pcmcia sb1000.ko team tokenring \ tun.ko usb veth.ko wan wimax wireless \ xen-netback.ko modules="$modules 8021q" ;; ide) copy_modules_dir kernel/drivers/ide ;; mmc) copy_modules_dir kernel/drivers/mmc ;; scsi) copy_modules_dir kernel/drivers/scsi modules="$modules mptfc mptsas mptscsih mptspi zfcp" ;; ata) copy_modules_dir kernel/drivers/ata ;; block) copy_modules_dir kernel/drivers/block copy_modules_dir kernel/drivers/nvme modules="$modules vmd" ;; ubi) modules="$modules deflate zlib lzo ubi ubifs" ;; ieee1394) modules="$modules ohci1394 sbp2" ;; firewire) modules="$modules firewire-ohci firewire-sbp2" ;; i2o) modules="$modules i2o_block" ;; dasd) modules="$modules dasd_diag_mod dasd_eckd_mod dasd_fba_mod" ;; usb_storage) copy_modules_dir kernel/drivers/usb/storage ;; fb) # For machines that don't have a generic framebuffer device. modules="$modules rockchipdrm pwm-cros-ec pwm_bl panel-simple" ;; virtual) # Hyper-V modules="$modules hv_vmbus hv_utils hv_netvsc hv_mouse hv_storvsc hyperv-keyboard" ;; nx) # PowerPC NX Crypto Coprocessor modules="$modules nx-compress nx-compress-crypto nx-compress-platform" modules="$modules nx-compress-pseries nx-compress-powernv 842-decompress" ;; esac done # shellcheck disable=SC2086 manual_add_modules $modules } # 'depmod' only looks at symbol dependencies and the 'softdep' module # information field; there is no way for modules to declare weaker # dependencies (modules that *might* be needed at run-time) through # module information, Until this is fixed, we need to handle those # hidden dependencies. hidden_dep_add_modules() { # shellcheck disable=SC2046 manual_add_modules $( { cat "${DESTDIR}/lib/modules/${version}/modules.builtin" if [ -d "${DESTDIR}/lib/modules/${version}/kernel" ]; then find "${DESTDIR}/lib/modules/${version}/kernel" -name '*.ko*' fi } | while read -r module; do module="${module##*/}" module="${module%%.*}" case "$module" in libcrc32c) echo crc32c ;; ubifs) echo deflate zlib lzo ;; btrfs) echo crc32c ;; f2fs) echo crc32 ;; mlx4_core) echo mlx4_ib ;; mlx5_core) echo mlx5_ib ;; i8042) echo psmouse ;; nvme) echo vmd ;; spi-rockchip) echo pl330 ;; dw_mmc-rockchip) echo rockchip-io-domain ;; esac done ) } # Find the source for a script file. This is needed to work around # temporary directories mounted with the noexec option. The source # will be on / or /usr which must be executable. get_source() { if [ -z "$scriptdir" ]; then echo "${initdir}/$1" elif [ -f "${CONFDIR}${scriptdir}/$1" ]; then echo "${CONFDIR}${scriptdir}/$1" else echo "/usr/share/initramfs-tools${scriptdir}/$1" fi } set_initlist() { unset initlist for si_x in "${initdir}"/*; do # skip empty dirs without warning [ "${si_x}" = "${initdir}/*" ] && return # only allow variable name chars case ${si_x#${initdir}/} in *[![:alnum:]\._-]*) [ "${verbose}" = "y" ] \ && echo "$si_x ignored: not alphanumeric or '_' file" >&2 continue ;; esac # skip directories if [ -d "${si_x}" ]; then [ "${verbose}" = "y" ] \ && echo "$si_x ignored: a directory" >&2 continue fi si_x="$(get_source "${si_x#${initdir}/}")" # skip non executable scripts if [ ! -x "${si_x}" ]; then [ "${verbose}" = "y" ] \ && echo "$si_x ignored: not executable" >&2 continue fi # skip bad syntax if ! sh -n "${si_x}" ; then [ "${verbose}" = "y" ] \ && echo "$si_x ignored: bad syntax" >&2 continue fi initlist="${initlist:-} ${si_x##*/}" done } get_prereq_pairs() { set_initlist for gp_x in ${initlist:-}; do echo "${gp_x} ${gp_x}" gp_src="$(get_source "$gp_x")" prereqs=$("${gp_src}" prereqs) for prereq in ${prereqs}; do echo "${prereq} ${gp_x}" done done } # cache boot scripts order cache_run_scripts() { DESTDIR=${1} scriptdir=${2} initdir=${DESTDIR}${scriptdir} [ ! -d "${initdir}" ] && return true > "${initdir}/ORDER" runlist=$(get_prereq_pairs | tsort) for crs_x in ${runlist}; do [ -f "${initdir}/${crs_x}" ] || continue echo "${scriptdir}/${crs_x} \"\$@\"" >> "${initdir}/ORDER" echo "[ -e /conf/param.conf ] && . /conf/param.conf" >> "${initdir}/ORDER" done } call_scripts() { set -e for cs_x in ${runlist}; do [ -f "${initdir}/${cs_x}" ] || continue if [ x"$call_scripts_optional" = "xy" ]; then option=$(sed '/^OPTION=/!d;$d;s/^OPTION=//;s/[[:space:]]*$//' "${initdir}/${cs_x}") # shellcheck disable=SC1083,2086 [ -z "${option}" ] || eval test -n \"\${$option}\" -a \"\${$option}\" != \"n\" || continue fi # mkinitramfs verbose output if [ "${verbose}" = "y" ]; then echo "Calling hook ${cs_x}" fi "${initdir}/${cs_x}" && ec=$? || ec=$? # allow hooks to abort build: if [ "$ec" -ne 0 ]; then echo "E: ${initdir}/${cs_x} failed with return $ec." >&2 # only errexit on mkinitramfs [ -n "${version}" ] && exit $ec fi # allow boot scripts to modify exported boot parameters if [ -e /conf/param.conf ]; then . /conf/param.conf fi done set +e } run_scripts() { scriptdir=${2:-} initdir=${1} [ ! -d "${initdir}" ] && return runlist=$(get_prereq_pairs | tsort) call_scripts "$scriptdir" } run_scripts_optional() { call_scripts_optional=y run_scripts "$@" } add_dns() { local destdir="$1" nsswitch="" lib="" libdir="" f="" d="" # find the multiarch lib dir (for example /lib/x86_64-linux-gnu) # by finding a directory with libc.so.6. for d in /lib/* /lib; do for f in "$d"/libc.so.?; do [ -f "$f" ] && break; done [ -f "$f" ] && libdir="$d" && break done if [ -z "$libdir" ]; then echo "WARNING: no libdir found for adding dns." 1>&2 return fi nsswitch="$destdir/etc/nsswitch.conf" if ! grep -qs "^hosts:" "$nsswitch"; then echo "hosts: files dns" >> "$nsswitch" fi local found="" for lib in libnss_files libnss_dns libresolv; do found="" for f in "$libdir/$lib.so".?; do [ -e "$f" ] || continue [ "$verbose" = "y" ] && echo "dns: $lib: $f" copy_file library "$f" found="$f" done [ -n "$found" ] || echo "WARNING: no $libdir/$lib.? file" 1>&2 done return 0 }