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