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