gen_initramfs.sh

   1 #!/bin/bash
   2 # $Id$
   3
   4 CPIO_ARGS="--quiet -o -H newc"
   5
   6 # The copy_binaries function is explicitly released under the CC0 license to
   7 # encourage wide adoption and re-use.  That means:
   8 # - You may use the code of copy_binaries() as CC0 outside of genkernel
   9 # - Contributions to this function are licensed under CC0 as well.
  10 # - If you change it outside of genkernel, please consider sending your
  11 #   modifications back to genkernel@gentoo.org.
  12 #
  13 # On a side note: "Both public domain works and the simple license provided by
  14 #                  CC0 are compatible with the GNU GPL."
  15 #                 (from https://www.gnu.org/licenses/license-list.html#CC0)
  16 #
  17 # Written by:
  18 # - Sebastian Pipping <sebastian@pipping.org> (error checking)
  19 # - Robin H. Johnson <robbat2@gentoo.org> (complete rewrite)
  20 # - Richard Yao <ryao@cs.stonybrook.edu> (original concept)
  21 # Usage:
  22 # copy_binaries DESTDIR BINARIES...
  23 copy_binaries() {
  24         local destdir=$1
  25         shift
  26
  27         for binary in "$@"; do
  28                 [[ -e "${binary}" ]] \
  29                                 || gen_die "Binary ${binary} could not be found"
  30
  31                 if LC_ALL=C lddtree "${binary}" 2>&1 | fgrep -q 'not found'; then
  32                         gen_die "Binary ${binary} is linked to missing libraries and may need to be re-built"
  33                 fi
  34         done
  35         # This must be OUTSIDE the for loop, we only want to run lddtree etc ONCE.
  36         # lddtree does not have the -V (version) nor the -l (list) options prior to version 1.18
  37         (
  38         if lddtree -V > /dev/null 2>&1 ; then
  39                 lddtree -l "$@"
  40         else
  41                 lddtree "$@" \
  42                         | tr ')(' '\n' \
  43                         | awk  '/=>/{ if($3 ~ /^\//){print $3}}'
  44         fi ) \
  45                         | sort \
  46                         | uniq \
  47                         | cpio -p --make-directories --dereference --quiet "${destdir}" \
  48                         || gen_die "Binary ${f} or some of its library dependencies could not be copied"
  49 }
  50
  51 log_future_cpio_content() {
  52         if [[ "${LOGLEVEL}" -gt 1 ]]; then
  53                 echo =================================================================
  54                 echo "About to add these files from '${PWD}' to cpio archive:"
  55                 find . | xargs ls -ald
  56                 echo =================================================================
  57         fi
  58 }
  59
  60 append_base_layout() {
  61         if [ -d "${TEMP}/initramfs-base-temp" ]
  62         then
  63                 rm -rf "${TEMP}/initramfs-base-temp" > /dev/null
  64         fi
  65
  66         mkdir -p ${TEMP}/initramfs-base-temp/dev
  67         mkdir -p ${TEMP}/initramfs-base-temp/bin
  68         mkdir -p ${TEMP}/initramfs-base-temp/etc
  69         mkdir -p ${TEMP}/initramfs-base-temp/usr
  70         mkdir -p ${TEMP}/initramfs-base-temp/lib
  71         mkdir -p ${TEMP}/initramfs-base-temp/mnt
  72         mkdir -p ${TEMP}/initramfs-base-temp/run
  73         mkdir -p ${TEMP}/initramfs-base-temp/sbin
  74         mkdir -p ${TEMP}/initramfs-base-temp/proc
  75         mkdir -p ${TEMP}/initramfs-base-temp/temp
  76         mkdir -p ${TEMP}/initramfs-base-temp/tmp
  77         mkdir -p ${TEMP}/initramfs-base-temp/sys
  78         mkdir -p ${TEMP}/initramfs-temp/.initrd
  79         mkdir -p ${TEMP}/initramfs-base-temp/var/lock/dmraid
  80         mkdir -p ${TEMP}/initramfs-base-temp/sbin
  81         mkdir -p ${TEMP}/initramfs-base-temp/usr/bin
  82         mkdir -p ${TEMP}/initramfs-base-temp/usr/sbin
  83         ln -s  lib  ${TEMP}/initramfs-base-temp/lib64
  84
  85         echo "/dev/ram0     /           ext2    defaults        0 0" > ${TEMP}/initramfs-base-temp/etc/fstab
  86         echo "proc          /proc       proc    defaults    0 0" >> ${TEMP}/initramfs-base-temp/etc/fstab
  87
  88         cd ${TEMP}/initramfs-base-temp/dev
  89         mknod -m 660 console c 5 1
  90         mknod -m 660 null c 1 3
  91         mknod -m 660 zero c 1 5
  92         mknod -m 600 tty0 c 4 0
  93         mknod -m 600 tty1 c 4 1
  94         mknod -m 600 ttyS0 c 4 64
  95
  96         date -u '+%Y%m%d-%H%M%S' > ${TEMP}/initramfs-base-temp/etc/build_date
  97         echo "Genkernel $GK_V" > ${TEMP}/initramfs-base-temp/etc/build_id
  98
  99         cd "${TEMP}/initramfs-base-temp/"
 100         log_future_cpio_content
 101         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 102                         || gen_die "compressing baselayout cpio"
 103         cd "${TEMP}"
 104         rm -rf "${TEMP}/initramfs-base-temp" > /dev/null
 105 }
 106
 107 append_busybox() {
 108         if [ -d "${TEMP}/initramfs-busybox-temp" ]
 109         then
 110                 rm -rf "${TEMP}/initramfs-busybox-temp" > /dev/null
 111         fi
 112
 113         mkdir -p "${TEMP}/initramfs-busybox-temp/bin/"
 114         tar -xjf "${BUSYBOX_BINCACHE}" -C "${TEMP}/initramfs-busybox-temp/bin" busybox ||
 115                 gen_die 'Could not extract busybox bincache!'
 116         chmod +x "${TEMP}/initramfs-busybox-temp/bin/busybox"
 117
 118         mkdir -p "${TEMP}/initramfs-busybox-temp/usr/share/udhcpc/"
 119         cp "${GK_SHARE}/defaults/udhcpc.scripts" ${TEMP}/initramfs-busybox-temp/usr/share/udhcpc/default.script
 120         chmod +x "${TEMP}/initramfs-busybox-temp/usr/share/udhcpc/default.script"
 121
 122         # Set up a few default symlinks
 123         for i in ${BUSYBOX_APPLETS:-[ ash sh mount uname echo cut cat}; do
 124                 rm -f ${TEMP}/initramfs-busybox-temp/bin/$i > /dev/null
 125                 ln -s busybox ${TEMP}/initramfs-busybox-temp/bin/$i ||
 126                         gen_die "Busybox error: could not link ${i}!"
 127         done
 128
 129         cd "${TEMP}/initramfs-busybox-temp/"
 130         log_future_cpio_content
 131         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 132                         || gen_die "compressing busybox cpio"
 133         cd "${TEMP}"
 134         rm -rf "${TEMP}/initramfs-busybox-temp" > /dev/null
 135 }
 136
 137 append_e2fsprogs(){
 138         if [ -d "${TEMP}"/initramfs-e2fsprogs-temp ]
 139         then
 140                 rm -r "${TEMP}"/initramfs-e2fsprogs-temp
 141         fi
 142
 143         cd "${TEMP}" \
 144                         || gen_die "cd '${TEMP}' failed"
 145         mkdir -p initramfs-e2fsprogs-temp
 146         copy_binaries "${TEMP}"/initramfs-e2fsprogs-temp/ /sbin/{e2fsck,mke2fs}
 147
 148         cd "${TEMP}"/initramfs-e2fsprogs-temp \
 149                         || gen_die "cd '${TEMP}/initramfs-e2fsprogs-temp' failed"
 150         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
 151         rm -rf "${TEMP}"/initramfs-e2fsprogs-temp > /dev/null
 152 }
 153
 154 append_blkid(){
 155         if [ -d "${TEMP}/initramfs-blkid-temp" ]
 156         then
 157                 rm -r "${TEMP}/initramfs-blkid-temp/"
 158         fi
 159         cd ${TEMP}
 160         mkdir -p "${TEMP}/initramfs-blkid-temp/"
 161
 162         if [[ "${DISKLABEL}" = "1" ]]; then
 163                 copy_binaries "${TEMP}"/initramfs-blkid-temp/ /sbin/blkid
 164         fi
 165
 166         cd "${TEMP}/initramfs-blkid-temp/"
 167         log_future_cpio_content
 168         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 169                         || gen_die "compressing blkid cpio"
 170         cd "${TEMP}"
 171         rm -rf "${TEMP}/initramfs-blkid-temp" > /dev/null
 172 }
 173
 174 #append_fuse() {
 175 #       if [ -d "${TEMP}/initramfs-fuse-temp" ]
 176 #       then
 177 #               rm -r "${TEMP}/initramfs-fuse-temp"
 178 #       fi
 179 #       cd ${TEMP}
 180 #       mkdir -p "${TEMP}/initramfs-fuse-temp/lib/"
 181 #       tar -C "${TEMP}/initramfs-fuse-temp/lib/" -xjf "${FUSE_BINCACHE}"
 182 #       cd "${TEMP}/initramfs-fuse-temp/"
 183 #       find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 184 #                       || gen_die "compressing fuse cpio"
 185 #       rm -rf "${TEMP}/initramfs-fuse-temp" > /dev/null
 186 #}
 187
 188 append_unionfs_fuse() {
 189         if [ -d "${TEMP}/initramfs-unionfs-fuse-temp" ]
 190         then
 191                 rm -r "${TEMP}/initramfs-unionfs-fuse-temp"
 192         fi
 193         cd ${TEMP}
 194         mkdir -p "${TEMP}/initramfs-unionfs-fuse-temp/sbin/"
 195         bzip2 -dc "${UNIONFS_FUSE_BINCACHE}" > "${TEMP}/initramfs-unionfs-fuse-temp/sbin/unionfs" ||
 196                 gen_die 'Could not extract unionfs-fuse binary cache!'
 197         chmod a+x "${TEMP}/initramfs-unionfs-fuse-temp/sbin/unionfs"
 198         cd "${TEMP}/initramfs-unionfs-fuse-temp/"
 199         log_future_cpio_content
 200         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 201                         || gen_die "compressing unionfs fuse cpio"
 202         cd "${TEMP}"
 203         rm -rf "${TEMP}/initramfs-unionfs-fuse-temp" > /dev/null
 204 }
 205
 206 #append_suspend(){
 207 #       if [ -d "${TEMP}/initramfs-suspend-temp" ];
 208 #       then
 209 #               rm -r "${TEMP}/initramfs-suspend-temp/"
 210 #       fi
 211 #       print_info 1 'SUSPEND: Adding support (compiling binaries)...'
 212 #       compile_suspend
 213 #       mkdir -p "${TEMP}/initramfs-suspend-temp/"
 214 #       /bin/tar -jxpf "${SUSPEND_BINCACHE}" -C "${TEMP}/initramfs-suspend-temp" ||
 215 #               gen_die "Could not extract suspend binary cache!"
 216 #       mkdir -p "${TEMP}/initramfs-suspend-temp/etc"
 217 #       cp -f /etc/suspend.conf "${TEMP}/initramfs-suspend-temp/etc" ||
 218 #               gen_die 'Could not copy /etc/suspend.conf'
 219 #       cd "${TEMP}/initramfs-suspend-temp/"
 220 #       log_future_cpio_content
 221 #       find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 222 #                       || gen_die "compressing suspend cpio"
 223 #       rm -r "${TEMP}/initramfs-suspend-temp/"
 224 #}
 225
 226 append_multipath(){
 227         if [ -d "${TEMP}/initramfs-multipath-temp" ]
 228         then
 229                 rm -r "${TEMP}/initramfs-multipath-temp"
 230         fi
 231         print_info 1 '  Multipath support being added'
 232         mkdir -p "${TEMP}"/initramfs-multipath-temp/{bin,etc,sbin,lib}/
 233
 234         # Copy files
 235         copy_binaries "${TEMP}/initramfs-multipath-temp" \
 236                 /bin/mountpoint \
 237                 /sbin/{multipath,kpartx,mpath_prio_*,devmap_name,dmsetup} \
 238                 /{lib,lib64}/{udev/scsi_id,multipath/*so}
 239
 240         if [ -x /sbin/multipath ]
 241         then
 242                 cp /etc/multipath.conf "${TEMP}/initramfs-multipath-temp/etc/" || gen_die 'could not copy /etc/multipath.conf please check this'
 243         fi
 244         # /etc/scsi_id.config does not exist in newer udevs
 245         # copy it optionally.
 246         if [ -x /sbin/scsi_id -a -f /etc/scsi_id.config ]
 247         then
 248                 cp /etc/scsi_id.config "${TEMP}/initramfs-multipath-temp/etc/" || gen_die 'could not copy scsi_id.config'
 249         fi
 250         cd "${TEMP}/initramfs-multipath-temp"
 251         log_future_cpio_content
 252         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 253                         || gen_die "compressing multipath cpio"
 254         cd "${TEMP}"
 255         rm -r "${TEMP}/initramfs-multipath-temp/"
 256 }
 257
 258 append_dmraid(){
 259         if [ -d "${TEMP}/initramfs-dmraid-temp" ]
 260         then
 261                 rm -r "${TEMP}/initramfs-dmraid-temp/"
 262         fi
 263         print_info 1 'DMRAID: Adding support (compiling binaries)...'
 264         compile_dmraid
 265         mkdir -p "${TEMP}/initramfs-dmraid-temp/"
 266         /bin/tar -jxpf "${DMRAID_BINCACHE}" -C "${TEMP}/initramfs-dmraid-temp" ||
 267                 gen_die "Could not extract dmraid binary cache!";
 268         cd "${TEMP}/initramfs-dmraid-temp/"
 269         RAID456=`find . -type f -name raid456.ko`
 270         if [ -n "${RAID456}" ]
 271         then
 272                 cd "${RAID456/raid456.ko/}"
 273                 ln -sf raid456.kp raid45.ko
 274                 cd "${TEMP}/initramfs-dmraid-temp/"
 275         fi
 276         log_future_cpio_content
 277         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 278                         || gen_die "compressing dmraid cpio"
 279         cd "${TEMP}"
 280         rm -r "${TEMP}/initramfs-dmraid-temp/"
 281 }
 282
 283 append_iscsi(){
 284         if [ -d "${TEMP}/initramfs-iscsi-temp" ]
 285         then
 286                 rm -r "${TEMP}/initramfs-iscsi-temp/"
 287         fi
 288         print_info 1 'iSCSI: Adding support (compiling binaries)...'
 289         compile_iscsi
 290         cd ${TEMP}
 291         mkdir -p "${TEMP}/initramfs-iscsi-temp/bin/"
 292         /bin/bzip2 -dc "${ISCSI_BINCACHE}" > "${TEMP}/initramfs-iscsi-temp/bin/iscsistart" ||
 293                 gen_die "Could not extract iscsi binary cache!"
 294         chmod a+x "${TEMP}/initramfs-iscsi-temp/bin/iscsistart"
 295         cd "${TEMP}/initramfs-iscsi-temp/"
 296         log_future_cpio_content
 297         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 298                         || gen_die "compressing iscsi cpio"
 299         cd "${TEMP}"
 300         rm -rf "${TEMP}/initramfs-iscsi-temp" > /dev/null
 301 }
 302
 303 append_lvm(){
 304         if [ -d "${TEMP}/initramfs-lvm-temp" ]
 305         then
 306                 rm -r "${TEMP}/initramfs-lvm-temp/"
 307         fi
 308         cd ${TEMP}
 309         mkdir -p "${TEMP}/initramfs-lvm-temp/bin/"
 310         mkdir -p "${TEMP}/initramfs-lvm-temp/etc/lvm/"
 311         if false && [ -e '/sbin/lvm.static' ]
 312         then
 313                 print_info 1 '          LVM: Adding support (using local static binary /sbin/lvm.static)...'
 314                 cp /sbin/lvm.static "${TEMP}/initramfs-lvm-temp/bin/lvm" ||
 315                         gen_die 'Could not copy over lvm!'
 316                 # See bug 382555
 317                 if [ -e '/sbin/dmsetup.static' ]
 318                 then
 319                         cp /sbin/dmsetup.static "${TEMP}/initramfs-lvm-temp/bin/dmsetup"
 320                 fi
 321         elif false && [ -e '/sbin/lvm' ] && LC_ALL="C" ldd /sbin/lvm|grep -q 'not a dynamic executable'
 322         then
 323                 print_info 1 '          LVM: Adding support (using local static binary /sbin/lvm)...'
 324                 cp /sbin/lvm "${TEMP}/initramfs-lvm-temp/bin/lvm" ||
 325                         gen_die 'Could not copy over lvm!'
 326                 # See bug 382555
 327                 if [ -e '/sbin/dmsetup' ] && LC_ALL="C" ldd /sbin/dmsetup | grep -q 'not a dynamic executable'
 328                 then
 329                         cp /sbin/dmsetup "${TEMP}/initramfs-lvm-temp/bin/dmsetup"
 330                 fi
 331         else
 332                 print_info 1 '          LVM: Adding support (compiling binaries)...'
 333                 compile_lvm
 334                 /bin/tar -jxpf "${LVM_BINCACHE}" -C "${TEMP}/initramfs-lvm-temp" ||
 335                         gen_die "Could not extract lvm binary cache!";
 336                 mv ${TEMP}/initramfs-lvm-temp/sbin/lvm.static ${TEMP}/initramfs-lvm-temp/bin/lvm ||
 337                         gen_die 'LVM error: Could not move lvm.static to lvm!'
 338                 # See bug 382555
 339                 mv ${TEMP}/initramfs-lvm-temp/sbin/dmsetup.static ${TEMP}/initramfs-lvm-temp/bin/dmsetup ||
 340                         gen_die 'LVM error: Could not move dmsetup.static to dmsetup!'
 341                 rm -rf ${TEMP}/initramfs-lvm-temp/{lib,share,man,include,sbin/{lvm,dmsetup}}
 342         fi
 343         if [ -x /sbin/lvm -o -x /bin/lvm ]
 344         then
 345 #               lvm dumpconfig 2>&1 > /dev/null || gen_die 'Could not copy over lvm.conf!'
 346 #               ret=$?
 347 #               if [ ${ret} != 0 ]
 348 #               then
 349                         cp /etc/lvm/lvm.conf "${TEMP}/initramfs-lvm-temp/etc/lvm/" ||
 350                                 gen_die 'Could not copy over lvm.conf!'
 351 #               else
 352 #                       gen_die 'Could not copy over lvm.conf!'
 353 #               fi
 354         fi
 355         cd "${TEMP}/initramfs-lvm-temp/"
 356         log_future_cpio_content
 357         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 358                         || gen_die "compressing lvm cpio"
 359         cd "${TEMP}"
 360         rm -r "${TEMP}/initramfs-lvm-temp/"
 361 }
 362
 363 append_mdadm(){
 364         if [ -d "${TEMP}/initramfs-mdadm-temp" ]
 365         then
 366                 rm -r "${TEMP}/initramfs-mdadm-temp/"
 367         fi
 368         cd ${TEMP}
 369         mkdir -p "${TEMP}/initramfs-mdadm-temp/etc/"
 370         mkdir -p "${TEMP}/initramfs-mdadm-temp/sbin/"
 371         if [ "${MDADM}" = '1' ]
 372         then
 373                 if [ -n "${MDADM_CONFIG}" ]
 374                 then
 375                         if [ -f "${MDADM_CONFIG}" ]
 376                         then
 377                                 cp -a "${MDADM_CONFIG}" "${TEMP}/initramfs-mdadm-temp/etc/mdadm.conf" \
 378                                 || gen_die "Could not copy mdadm.conf!"
 379                         else
 380                                 gen_die 'sl${MDADM_CONFIG} does not exist!'
 381                         fi
 382                 else
 383                         print_info 1 '          MDADM: Skipping inclusion of mdadm.conf'
 384                 fi
 385
 386                 if [ -e '/sbin/mdadm' ] && LC_ALL="C" ldd /sbin/mdadm | grep -q 'not a dynamic executable' \
 387                 && [ -e '/sbin/mdmon' ] && LC_ALL="C" ldd /sbin/mdmon | grep -q 'not a dynamic executable'
 388                 then
 389                         print_info 1 '          MDADM: Adding support (using local static binaries /sbin/mdadm and /sbin/mdmon)...'
 390                         cp /sbin/mdadm /sbin/mdmon "${TEMP}/initramfs-mdadm-temp/sbin/" ||
 391                                 gen_die 'Could not copy over mdadm!'
 392                 else
 393                         print_info 1 '          MDADM: Adding support (compiling binaries)...'
 394                         compile_mdadm
 395                         /bin/tar -jxpf "${MDADM_BINCACHE}" -C "${TEMP}/initramfs-mdadm-temp" ||
 396                                 gen_die "Could not extract mdadm binary cache!";
 397                 fi
 398         fi
 399         cd "${TEMP}/initramfs-mdadm-temp/"
 400         log_future_cpio_content
 401         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 402                         || gen_die "compressing mdadm cpio"
 403         cd "${TEMP}"
 404         rm -rf "${TEMP}/initramfs-mdadm-temp" > /dev/null
 405 }
 406
 407 append_zfs(){
 408         if [ -d "${TEMP}/initramfs-zfs-temp" ]
 409         then
 410                 rm -r "${TEMP}/initramfs-zfs-temp"
 411         fi
 412
 413         mkdir -p "${TEMP}/initramfs-zfs-temp/etc/zfs/"
 414
 415         # Copy files to /etc/zfs
 416         for i in /etc/zfs/{zdev.conf,zpool.cache}
 417         do
 418                 cp -a "${i}" "${TEMP}/initramfs-zfs-temp/etc/zfs" \
 419                         || print_warning 1 "Could not copy file ${i} for ZFS"
 420         done
 421
 422         # Copy binaries
 423         copy_binaries "${TEMP}/initramfs-zfs-temp" /sbin/{mount.zfs,zfs,zpool}
 424
 425         cd "${TEMP}/initramfs-zfs-temp/"
 426         log_future_cpio_content
 427         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 428                         || gen_die "compressing zfs cpio"
 429         cd "${TEMP}"
 430         rm -rf "${TEMP}/initramfs-zfs-temp" > /dev/null
 431 }
 432
 433 append_splash(){
 434         splash_geninitramfs=`which splash_geninitramfs 2>/dev/null`
 435         if [ -x "${splash_geninitramfs}" ]
 436         then
 437                 [ -z "${SPLASH_THEME}" ] && [ -e /etc/conf.d/splash ] && source /etc/conf.d/splash
 438                 [ -z "${SPLASH_THEME}" ] && SPLASH_THEME=default
 439                 print_info 1 "  >> Installing splash [ using the ${SPLASH_THEME} theme ]..."
 440                 if [ -d "${TEMP}/initramfs-splash-temp" ]
 441                 then
 442                         rm -r "${TEMP}/initramfs-splash-temp/"
 443                 fi
 444                 mkdir -p "${TEMP}/initramfs-splash-temp"
 445                 cd /
 446                 local tmp=""
 447                 [ -n "${SPLASH_RES}" ] && tmp="-r ${SPLASH_RES}"
 448                 splash_geninitramfs -c "${TEMP}/initramfs-splash-temp" ${tmp} ${SPLASH_THEME} || gen_die "Could not build splash cpio archive"
 449                 if [ -e "/usr/share/splashutils/initrd.splash" ]; then
 450                         mkdir -p "${TEMP}/initramfs-splash-temp/etc"
 451                         cp -f "/usr/share/splashutils/initrd.splash" "${TEMP}/initramfs-splash-temp/etc"
 452                 fi
 453                 cd "${TEMP}/initramfs-splash-temp/"
 454                 log_future_cpio_content
 455                 find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 456                         || gen_die "compressing splash cpio"
 457                 cd "${TEMP}"
 458                 rm -r "${TEMP}/initramfs-splash-temp/"
 459         else
 460                 print_warning 1 '               >> No splash detected; skipping!'
 461         fi
 462 }
 463
 464 append_overlay(){
 465         cd ${INITRAMFS_OVERLAY}
 466         log_future_cpio_content
 467         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 468                         || gen_die "compressing overlay cpio"
 469 }
 470
 471 append_luks() {
 472         local _luks_error_format="LUKS support cannot be included: %s.  Please emerge sys-fs/cryptsetup[static]."
 473         local _luks_source=/sbin/cryptsetup
 474         local _luks_dest=/sbin/cryptsetup
 475
 476         if [ -d "${TEMP}/initramfs-luks-temp" ]
 477         then
 478                 rm -r "${TEMP}/initramfs-luks-temp/"
 479         fi
 480
 481         mkdir -p "${TEMP}/initramfs-luks-temp/lib/luks/"
 482         mkdir -p "${TEMP}/initramfs-luks-temp/sbin"
 483         cd "${TEMP}/initramfs-luks-temp"
 484
 485         if isTrue ${LUKS}
 486         then
 487                 [ -x "${_luks_source}" ] \
 488                                 || gen_die "$(printf "${_luks_error_format}" "no file ${_luks_source}")"
 489
 490                 print_info 1 "Including LUKS support"
 491                 copy_binaries "${TEMP}/initramfs-luks-temp/" /sbin/cryptsetup
 492         fi
 493
 494         log_future_cpio_content
 495         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 496                 || gen_die "appending cryptsetup to cpio"
 497
 498         cd "${TEMP}"
 499         rm -r "${TEMP}/initramfs-luks-temp/"
 500 }
 501
 502 append_firmware() {
 503         if [ -z "${FIRMWARE_FILES}" -a ! -d "${FIRMWARE_DIR}" ]
 504         then
 505                 gen_die "specified firmware directory (${FIRMWARE_DIR}) does not exist"
 506         fi
 507         if [ -d "${TEMP}/initramfs-firmware-temp" ]
 508         then
 509                 rm -r "${TEMP}/initramfs-firmware-temp/"
 510         fi
 511         mkdir -p "${TEMP}/initramfs-firmware-temp/lib/firmware"
 512         cd "${TEMP}/initramfs-firmware-temp"
 513         if [ -n "${FIRMWARE_FILES}" ]
 514         then
 515                 OLD_IFS=$IFS
 516                 IFS=","
 517                 for i in ${FIRMWARE_FILES}
 518                 do
 519                         cp -L "${i}" ${TEMP}/initramfs-firmware-temp/lib/firmware/
 520                 done
 521                 IFS=$OLD_IFS
 522         else
 523                 cp -a "${FIRMWARE_DIR}"/* ${TEMP}/initramfs-firmware-temp/lib/firmware/
 524         fi
 525         log_future_cpio_content
 526         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 527                 || gen_die "appending firmware to cpio"
 528         cd "${TEMP}"
 529         rm -r "${TEMP}/initramfs-firmware-temp/"
 530 }
 531
 532 append_gpg() {
 533         if [ -d "${TEMP}/initramfs-gpg-temp" ]
 534         then
 535                 rm -r "${TEMP}/initramfs-gpg-temp"
 536         fi
 537         cd ${TEMP}
 538         mkdir -p "${TEMP}/initramfs-gpg-temp/sbin/"
 539         if [ ! -e ${GPG_BINCACHE} ] ; then
 540                 print_info 1 '          GPG: Adding support (compiling binaries)...'
 541                 compile_gpg
 542         fi
 543         bzip2 -dc "${GPG_BINCACHE}" > "${TEMP}/initramfs-gpg-temp/sbin/gpg" ||
 544                 gen_die 'Could not extract gpg binary cache!'
 545         chmod a+x "${TEMP}/initramfs-gpg-temp/sbin/gpg"
 546         cd "${TEMP}/initramfs-gpg-temp/"
 547         log_future_cpio_content
 548         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
 549         rm -rf "${TEMP}/initramfs-gpg-temp" > /dev/null
 550 }
 551
 552 print_list()
 553 {
 554         local x
 555         for x in ${*}
 556         do
 557                 echo ${x}
 558         done
 559 }
 560
 561 append_modules() {
 562         local group
 563         local group_modules
 564         local MOD_EXT=".ko"
 565
 566         print_info 2 "initramfs: >> Searching for modules..."
 567         if [ "${INSTALL_MOD_PATH}" != '' ]
 568         then
 569           cd ${INSTALL_MOD_PATH}
 570         else
 571           cd /
 572         fi
 573
 574         if [ -d "${TEMP}/initramfs-modules-${KV}-temp" ]
 575         then
 576                 rm -r "${TEMP}/initramfs-modules-${KV}-temp/"
 577         fi
 578         mkdir -p "${TEMP}/initramfs-modules-${KV}-temp/lib/modules/${KV}"
 579         for i in `gen_dep_list`
 580         do
 581                 mymod=`find ./lib/modules/${KV} -name "${i}${MOD_EXT}" 2>/dev/null| head -n 1 `
 582                 if [ -z "${mymod}" ]
 583                 then
 584                         print_warning 2 "Warning :: ${i}${MOD_EXT} not found; skipping..."
 585                         continue;
 586                 fi
 587
 588                 print_info 2 "initramfs: >> Copying ${i}${MOD_EXT}..."
 589                 cp -ax --parents "${mymod}" "${TEMP}/initramfs-modules-${KV}-temp"
 590         done
 591
 592         cp -ax --parents ./lib/modules/${KV}/modules* ${TEMP}/initramfs-modules-${KV}-temp 2>/dev/null
 593
 594         mkdir -p "${TEMP}/initramfs-modules-${KV}-temp/etc/modules"
 595         for group_modules in ${!MODULES_*}; do
 596                 group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
 597                 print_list ${!group_modules} > "${TEMP}/initramfs-modules-${KV}-temp/etc/modules/${group}"
 598         done
 599         cd "${TEMP}/initramfs-modules-${KV}-temp/"
 600         log_future_cpio_content
 601         find . | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 602                         || gen_die "compressing modules cpio"
 603         cd "${TEMP}"
 604         rm -r "${TEMP}/initramfs-modules-${KV}-temp/"
 605 }
 606
 607 append_modprobed() {
 608         local TDIR="${TEMP}/initramfs-modprobe.d-temp"
 609         if [ -d "${TDIR}" ]
 610         then
 611                 rm -r "${TDIR}"
 612         fi
 613
 614         mkdir -p "${TDIR}/etc/module_options/"
 615
 616         # Load module parameters
 617         for dir in $(find "${MODPROBEDIR}"/*)
 618         do
 619                 while read x
 620                 do
 621                         case "${x}" in
 622                                 options*)
 623                                         module_name="$(echo "$x" | cut -d ' ' -f 2)"
 624                                         [ "${module_name}" != "$(echo)" ] || continue
 625                                         module_options="$(echo "$x" | cut -d ' ' -f 3-)"
 626                                         [ "${module_options}" != "$(echo)" ] || continue
 627                                         echo "${module_options}" >> "${TDIR}/etc/module_options/${module_name}.conf"
 628                                 ;;
 629                         esac
 630                 done < "${dir}"
 631         done
 632
 633         cd "${TDIR}"
 634         log_future_cpio_content
 635         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 636                         || gen_die "compressing modprobe.d cpio"
 637
 638         cd "${TEMP}"
 639         rm -rf "${TDIR}" > /dev/null
 640 }
 641
 642 # check for static linked file with objdump
 643 is_static() {
 644         LANG="C" LC_ALL="C" objdump -T $1 2>&1 | grep "not a dynamic object" > /dev/null
 645         return $?
 646 }
 647
 648 append_auxilary() {
 649         if [ -d "${TEMP}/initramfs-aux-temp" ]
 650         then
 651                 rm -r "${TEMP}/initramfs-aux-temp/"
 652         fi
 653         mkdir -p "${TEMP}/initramfs-aux-temp/etc"
 654         mkdir -p "${TEMP}/initramfs-aux-temp/sbin"
 655         if [ -f "${CMD_LINUXRC}" ]
 656         then
 657                 cp "${CMD_LINUXRC}" "${TEMP}/initramfs-aux-temp/init"
 658                 print_info 2 "        >> Copying user specified linuxrc: ${CMD_LINUXRC} to init"
 659         else
 660                 if isTrue ${NETBOOT}
 661                 then
 662                         cp "${GK_SHARE}/netboot/linuxrc.x" "${TEMP}/initramfs-aux-temp/init"
 663                 else
 664                         if [ -f "${GK_SHARE}/arch/${ARCH}/linuxrc" ]
 665                         then
 666                                 cp "${GK_SHARE}/arch/${ARCH}/linuxrc" "${TEMP}/initramfs-aux-temp/init"
 667                         else
 668                                 cp "${GK_SHARE}/defaults/linuxrc" "${TEMP}/initramfs-aux-temp/init"
 669                         fi
 670                 fi
 671         fi
 672
 673         # Make sure it's executable
 674         chmod 0755 "${TEMP}/initramfs-aux-temp/init"
 675
 676         # Make a symlink to init .. incase we are bundled inside the kernel as one
 677         # big cpio.
 678         cd ${TEMP}/initramfs-aux-temp
 679         ln -s init linuxrc
 680 #       ln ${TEMP}/initramfs-aux-temp/init ${TEMP}/initramfs-aux-temp/linuxrc
 681
 682         if [ -f "${GK_SHARE}/arch/${ARCH}/initrd.scripts" ]
 683         then
 684                 cp "${GK_SHARE}/arch/${ARCH}/initrd.scripts" "${TEMP}/initramfs-aux-temp/etc/initrd.scripts"
 685         else
 686                 cp "${GK_SHARE}/defaults/initrd.scripts" "${TEMP}/initramfs-aux-temp/etc/initrd.scripts"
 687         fi
 688
 689         if [ -f "${GK_SHARE}/arch/${ARCH}/initrd.defaults" ]
 690         then
 691                 cp "${GK_SHARE}/arch/${ARCH}/initrd.defaults" "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
 692         else
 693                 cp "${GK_SHARE}/defaults/initrd.defaults" "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
 694         fi
 695
 696         if [ -n "${REAL_ROOT}" ]
 697         then
 698                 sed -i "s:^REAL_ROOT=.*$:REAL_ROOT='${REAL_ROOT}':" "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
 699         fi
 700
 701         echo -n 'HWOPTS="$HWOPTS ' >> "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
 702         for group_modules in ${!MODULES_*}; do
 703                 group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
 704                 echo -n "${group} " >> "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
 705         done
 706         echo '"' >> "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
 707
 708         if [ -f "${GK_SHARE}/arch/${ARCH}/modprobe" ]
 709         then
 710                 cp "${GK_SHARE}/arch/${ARCH}/modprobe" "${TEMP}/initramfs-aux-temp/sbin/modprobe"
 711         else
 712                 cp "${GK_SHARE}/defaults/modprobe" "${TEMP}/initramfs-aux-temp/sbin/modprobe"
 713         fi
 714         if isTrue $CMD_DOKEYMAPAUTO
 715         then
 716                 echo 'MY_HWOPTS="${MY_HWOPTS} keymap"' >> ${TEMP}/initramfs-aux-temp/etc/initrd.defaults
 717         fi
 718         if isTrue $CMD_KEYMAP
 719         then
 720                 print_info 1 "        >> Copying keymaps"
 721                 mkdir -p "${TEMP}/initramfs-aux-temp/lib/"
 722                 cp -R "${GK_SHARE}/defaults/keymaps" "${TEMP}/initramfs-aux-temp/lib/" \
 723                                 || gen_die "Error while copying keymaps"
 724         fi
 725
 726         cd ${TEMP}/initramfs-aux-temp/sbin && ln -s ../init init
 727         cd ${TEMP}
 728         chmod +x "${TEMP}/initramfs-aux-temp/init"
 729         chmod +x "${TEMP}/initramfs-aux-temp/etc/initrd.scripts"
 730         chmod +x "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
 731         chmod +x "${TEMP}/initramfs-aux-temp/sbin/modprobe"
 732
 733         if isTrue ${NETBOOT}
 734         then
 735                 cd "${GK_SHARE}/netboot/misc"
 736                 cp -pPRf * "${TEMP}/initramfs-aux-temp/"
 737         fi
 738
 739         cd "${TEMP}/initramfs-aux-temp/"
 740         log_future_cpio_content
 741         find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
 742                         || gen_die "compressing auxilary cpio"
 743         cd "${TEMP}"
 744         rm -r "${TEMP}/initramfs-aux-temp/"
 745 }
 746
 747 append_data() {
 748         local name=$1 var=$2
 749         local func="append_${name}"
 750
 751         [ $# -eq 0 ] && gen_die "append_data() called with zero arguments"
 752         if [ $# -eq 1 ] || isTrue ${var}
 753         then
 754             print_info 1 "        >> Appending ${name} cpio data..."
 755             ${func} || gen_die "${func}() failed"
 756         fi
 757 }
 758
 759 create_initramfs() {
 760         local compress_ext=""
 761         print_info 1 "initramfs: >> Initializing..."
 762
 763         # Create empty cpio
 764         CPIO="${TMPDIR}/initramfs-${KV}"
 765         echo | cpio ${CPIO_ARGS} -F "${CPIO}" 2>/dev/null \
 766                 || gen_die "Could not create empty cpio at ${CPIO}"
 767
 768         append_data 'base_layout'
 769         append_data 'auxilary' "${BUSYBOX}"
 770         append_data 'busybox' "${BUSYBOX}"
 771         isTrue "${CMD_E2FSPROGS}" && append_data 'e2fsprogs'
 772         append_data 'lvm' "${LVM}"
 773         append_data 'dmraid' "${DMRAID}"
 774         append_data 'iscsi' "${ISCSI}"
 775         append_data 'mdadm' "${MDADM}"
 776         append_data 'luks' "${LUKS}"
 777         append_data 'multipath' "${MULTIPATH}"
 778         append_data 'gpg' "${GPG}"
 779
 780         if [ "${RAMDISKMODULES}" = '1' ]
 781         then
 782                 append_data 'modules'
 783         else
 784                 print_info 1 "initramfs: Not copying modules..."
 785         fi
 786
 787         append_data 'zfs' "${ZFS}"
 788
 789         append_data 'blkid' "${DISKLABEL}"
 790
 791         append_data 'unionfs_fuse' "${UNIONFS}"
 792
 793         append_data 'splash' "${SPLASH}"
 794
 795         append_data 'modprobed'
 796
 797         if isTrue "${FIRMWARE}" && [ -n "${FIRMWARE_DIR}" ]
 798         then
 799                 append_data 'firmware'
 800         fi
 801
 802         # This should always be appended last
 803         if [ "${INITRAMFS_OVERLAY}" != '' ]
 804         then
 805                 append_data 'overlay'
 806         fi
 807
 808         if isTrue "${INTEGRATED_INITRAMFS}"
 809         then
 810                 # Explicitly do not compress if we are integrating into the kernel.
 811                 # The kernel will do a better job of it than us.
 812                 mv ${TMPDIR}/initramfs-${KV} ${TMPDIR}/initramfs-${KV}.cpio
 813                 sed -i '/^.*CONFIG_INITRAMFS_SOURCE=.*$/d' ${KERNEL_DIR}/.config
 814                 compress_config='INITRAMFS_COMPRESSION_NONE'
 815                 case ${compress_ext} in
 816                         gz)  compress_config='INITRAMFS_COMPRESSION_GZIP' ;;
 817                         bz2) compress_config='INITRAMFS_COMPRESSION_BZIP2' ;;
 818                         lzma) compress_config='INITRAMFS_COMPRESSION_LZMA' ;;
 819                         xz) compress_config='INITRAMFS_COMPRESSION_XZ' ;;
 820                         lzo) compress_config='INITRAMFS_COMPRESSION_LZO' ;;
 821                         *) compress_config='INITRAMFS_COMPRESSION_NONE' ;;
 822                 esac
 823                 # All N default except XZ, so there it gets used if the kernel does
 824                 # compression on it's own.
 825                 cat >>${KERNEL_DIR}/.config     <<-EOF
 826                 CONFIG_INITRAMFS_SOURCE="${TMPDIR}/initramfs-${KV}.cpio${compress_ext}"
 827                 CONFIG_INITRAMFS_ROOT_UID=0
 828                 CONFIG_INITRAMFS_ROOT_GID=0
 829                 CONFIG_INITRAMFS_COMPRESSION_NONE=n
 830                 CONFIG_INITRAMFS_COMPRESSION_GZIP=n
 831                 CONFIG_INITRAMFS_COMPRESSION_BZIP2=n
 832                 CONFIG_INITRAMFS_COMPRESSION_LZMA=n
 833                 CONFIG_INITRAMFS_COMPRESSION_XZ=y
 834                 CONFIG_INITRAMFS_COMPRESSION_LZO=n
 835                 CONFIG_${compress_config}=y
 836                 EOF
 837         else
 838                 if isTrue "${COMPRESS_INITRD}"
 839                 then
 840                         # NOTE:  We do not work with ${KERNEL_CONFIG} here, since things like
 841                         #        "make oldconfig" or --noclean could be in effect.
 842                         if [ -f "${KERNEL_DIR}"/.config ]; then
 843                                 local ACTUAL_KERNEL_CONFIG="${KERNEL_DIR}"/.config
 844                         else
 845                                 local ACTUAL_KERNEL_CONFIG="${KERNEL_CONFIG}"
 846                         fi
 847
 848                         if [[ "$(file --brief --mime-type "${ACTUAL_KERNEL_CONFIG}")" == application/x-gzip ]]; then
 849                                 # Support --kernel-config=/proc/config.gz, mainly
 850                                 local CONFGREP=zgrep
 851                         else
 852                                 local CONFGREP=grep
 853                         fi
 854
 855                         cmd_xz=$(type -p xz)
 856                         cmd_lzma=$(type -p lzma)
 857                         cmd_bzip2=$(type -p bzip2)
 858                         cmd_gzip=$(type -p gzip)
 859                         cmd_lzop=$(type -p lzop)
 860                         pkg_xz='app-arch/xz-utils'
 861                         pkg_lzma='app-arch/xz-utils'
 862                         pkg_bzip2='app-arch/bzip2'
 863                         pkg_gzip='app-arch/gzip'
 864                         pkg_lzop='app-arch/lzop'
 865                         local compression
 866                         case ${COMPRESS_INITRD_TYPE} in
 867                                 xz|lzma|bzip2|gzip|lzop) compression=${COMPRESS_INITRD_TYPE} ;;
 868                                 lzo) compression=lzop ;;
 869                                 best|fastest)
 870                                         for tuple in \
 871                                                         'CONFIG_RD_XZ    cmd_xz    xz' \
 872                                                         'CONFIG_RD_LZMA  cmd_lzma  lzma' \
 873                                                         'CONFIG_RD_BZIP2 cmd_bzip2 bzip2' \
 874                                                         'CONFIG_RD_GZIP  cmd_gzip  gzip' \
 875                                                         'CONFIG_RD_LZO   cmd_lzop  lzop'; do
 876                                                 set -- ${tuple}
 877                                                 kernel_option=$1
 878                                                 cmd_variable_name=$2
 879                                                 if ${CONFGREP} -q "^${kernel_option}=y" "${ACTUAL_KERNEL_CONFIG}" && test -n "${!cmd_variable_name}" ; then
 880                                                         compression=$3
 881                                                         [[ ${COMPRESS_INITRD_TYPE} == best ]] && break
 882                                                 fi
 883                                         done
 884                                         [[ -z "${compression}" ]] && gen_die "None of the initramfs compression methods we tried are supported by your kernel (config file \"${ACTUAL_KERNEL_CONFIG}\"), strange!?"
 885                                         ;;
 886                                 *)
 887                                         gen_die "Compression '${COMPRESS_INITRD_TYPE}' unknown"
 888                                         ;;
 889                         esac
 890
 891                         # Check for actual availability
 892                         cmd_variable_name=cmd_${compression}
 893                         pkg_variable_name=pkg_${compression}
 894                         [[ -z "${!cmd_variable_name}" ]] && gen_die "Compression '${compression}' is not available. Please install package '${!pkg_variable_name}'."
 895
 896                         case $compression in
 897                                 xz) compress_ext='.xz' compress_cmd="${cmd_xz} -e --check=none -z -f -9" ;;
 898                                 lzma) compress_ext='.lzma' compress_cmd="${cmd_lzma} -z -f -9" ;;
 899                                 bzip2) compress_ext='.bz2' compress_cmd="${cmd_bzip2} -z -f -9" ;;
 900                                 gzip) compress_ext='.gz' compress_cmd="${cmd_gzip} -f -9" ;;
 901                                 lzop) compress_ext='.lzo' compress_cmd="${cmd_lzop} -f -9" ;;
 902                         esac
 903
 904                         if [ -n "${compression}" ]; then
 905                                 print_info 1 "        >> Compressing cpio data (${compress_ext})..."
 906                                 ${compress_cmd} "${CPIO}" || gen_die "Compression (${compress_cmd}) failed"
 907                                 mv -f "${CPIO}${compress_ext}" "${CPIO}" || gen_die "Rename failed"
 908                         else
 909                                 print_info 1 "        >> Not compressing cpio data ..."
 910                         fi
 911                 fi
 912         fi
 913
 914         if isTrue "${CMD_INSTALL}"
 915         then
 916                 if ! isTrue "${INTEGRATED_INITRAMFS}"
 917                 then
 918                         copy_image_with_preserve "initramfs" \
 919                                 "${TMPDIR}/initramfs-${KV}" \
 920                                 "initramfs-${KNAME}-${ARCH}-${KV}"
 921                 fi
 922         fi
 923 }