gen_initrd.sh

   1 #!/bin/bash
   2
   3 # create_initrd_loop(size)
   4 create_initrd_loop() {
   5         local inodes
   6         [ "$#" -ne '1' ] && gen_die 'create_initrd_loop(): Not enough arguments!'
   7         mkdir -p ${TEMP}/initrd-mount ||
   8                 gen_die 'Could not create loopback mount directory!'
   9         dd if=/dev/zero of=${TEMP}/initrd-${KV} bs=1k count=${1} >> "${DEBUGFILE}" 2>&1 ||
  10                 gen_die "Could not zero initrd-${KV}"
  11         mke2fs -F -N500 -q "${TEMP}/initrd-${KV}" >> "${DEBUGFILE}" 2>&1 ||
  12                 gen_die "Could not format initrd-${KV}!"
  13         mount -t ext2 -o loop "${TEMP}/initrd-${KV}" "${TEMP}/initrd-mount" >> "${DEBUGFILE}" 2>&1 ||
  14                 gen_die 'Could not mount the initrd filesystem!'
  15 }
  16
  17 create_initrd_unmount_loop()
  18 {
  19         cd ${TEMP}
  20         umount "${TEMP}/initrd-mount" ||
  21                 gen_die 'Could not unmount initrd system!'
  22 }
  23
  24 move_initrd_to_loop()
  25 {
  26         cd "${TEMP}/initrd-temp"
  27         mv * "${TEMP}/initrd-mount" >> ${DEBUGFILE} 2>&1
  28 }
  29
  30 create_base_initrd_sys() {
  31         rm -rf "${TEMP}/initrd-temp" > /dev/null
  32         mkdir -p ${TEMP}/initrd-temp/dev
  33         mkdir -p ${TEMP}/initrd-temp/bin
  34         mkdir -p ${TEMP}/initrd-temp/etc
  35         mkdir -p ${TEMP}/initrd-temp/usr
  36         mkdir -p ${TEMP}/initrd-temp/proc
  37         mkdir -p ${TEMP}/initrd-temp/temp
  38         mkdir -p ${TEMP}/initrd-temp/sys
  39         mkdir -p ${TEMP}/initrd-temp/.initrd
  40         mkdir -p ${TEMP}/initrd-temp/var/lock/dmraid
  41         ln -s bin ${TEMP}/initrd-temp/sbin
  42         ln -s ../bin ${TEMP}/initrd-temp/usr/bin
  43         ln -s ../bin ${TEMP}/initrd-temp/usr/sbin
  44
  45         echo "/dev/ram0     /           ext2    defaults" > ${TEMP}/initrd-temp/etc/fstab
  46         echo "proc          /proc       proc    defaults    0 0" >> ${TEMP}/initrd-temp/etc/fstab
  47
  48         if [ "${NODEVFSD}" = '' ]
  49         then
  50                 echo "REGISTER        .*           MKOLDCOMPAT" > ${TEMP}/initrd-temp/etc/devfsd.conf
  51                 echo "UNREGISTER      .*           RMOLDCOMPAT" >> ${TEMP}/initrd-temp/etc/devfsd.conf
  52                 echo "REGISTER        .*           MKNEWCOMPAT" >> ${TEMP}/initrd-temp/etc/devfsd.conf
  53                 echo "UNREGISTER      .*           RMNEWCOMPAT" >> ${TEMP}/initrd-temp/etc/devfsd.conf
  54         fi
  55
  56         cd ${TEMP}/initrd-temp/dev
  57         MAKEDEV std
  58         MAKEDEV console
  59
  60         if [ "${DISKLABEL}" -eq '1' ]; then
  61                 cp "${BLKID_BINCACHE}" "${TEMP}/initrd-temp/bin/blkid.bz2" ||
  62                         gen_die 'Could not copy blkid from bincache!'
  63                 bunzip2 "${TEMP}/initrd-temp/bin/blkid.bz2" ||
  64                         gen_die 'Could not uncompress blkid!'
  65                 chmod +x "${TEMP}/initrd-temp/bin/blkid"
  66         fi
  67
  68         cp "${BUSYBOX_BINCACHE}" "${TEMP}/initrd-temp/bin/busybox.bz2" ||
  69                 gen_die 'Could not copy busybox from bincache!'
  70         bunzip2 "${TEMP}/initrd-temp/bin/busybox.bz2" ||
  71                 gen_die 'Could not uncompress busybox!'
  72         chmod +x "${TEMP}/initrd-temp/bin/busybox"
  73
  74         if [ "${NOINITRDMODULES}" = '' ]
  75         then
  76                 if [ "${PAT}" -gt "4" ]
  77                 then
  78                         cp "${MODULE_INIT_TOOLS_BINCACHE}" "${TEMP}/initrd-temp/bin/insmod.static.bz2" ||
  79                                 gen_die 'Could not copy insmod.static from bincache!'
  80                 else
  81                         cp "${MODUTILS_BINCACHE}" "${TEMP}/initrd-temp/bin/insmod.static.bz2" ||
  82                                 gen_die 'Could not copy insmod.static from bincache'
  83                 fi
  84
  85                 bunzip2 "${TEMP}/initrd-temp/bin/insmod.static.bz2" ||
  86                         gen_die 'Could not uncompress insmod.static!'
  87                 mv "${TEMP}/initrd-temp/bin/insmod.static" "${TEMP}/initrd-temp/bin/insmod"
  88                 chmod +x "${TEMP}/initrd-temp/bin/insmod"
  89         fi
  90
  91         # devfsd
  92         if [ "${NODEVFSD}" = '' ]
  93         then
  94                 cp "${DEVFSD_BINCACHE}" "${TEMP}/initrd-temp/bin/devfsd.bz2" || gen_die 'Could not copy devfsd executable from bincache!'
  95                 bunzip2 "${TEMP}/initrd-temp/bin/devfsd.bz2" || gen_die 'Could not uncompress devfsd!'
  96                 chmod +x "${TEMP}/initrd-temp/bin/devfsd"
  97         fi
  98
  99         # udev
 100         if [ "${UDEV}" -eq '1' ]
 101         then
 102                 /bin/tar -jxpf "${UDEV_BINCACHE}" -C "${TEMP}/initrd-temp" || gen_die 'Could not extract udev binary cache!'
 103                 ln -sf "./udev" "${TEMP}/initrd-temp/bin/udevstart" ||  gen_die 'Could not symlink udev -> udevstart!'
 104         fi
 105
 106         #unionfs modules
 107         if [ "${UNIONFS}" -eq '1' ]
 108         then
 109                 print_info 1 'UNIONFS MODULES: Adding support (compiling)...'
 110                 compile_unionfs_modules
 111                 /bin/tar -jxpf "${UNIONFS_MODULES_BINCACHE}" -C "${TEMP}/initrd-temp" ||
 112                         gen_die "Could not extract unionfs modules binary cache!";
 113         fi
 114
 115         #unionfs utils
 116         if [ "${UNIONFS}" -eq '1' ]
 117         then
 118                 print_info 1 'UNIONFS TOOLS: Adding support (compiling)...'
 119                 compile_unionfs_utils
 120                 /bin/tar -jxpf "${UNIONFS_BINCACHE}" -C "${TEMP}/initrd-temp" ||
 121                         gen_die "Could not extract unionfs tools binary cache!";
 122         fi
 123
 124
 125         # DMRAID
 126         if [ "${DMRAID}" = '1' ]
 127         then
 128                 print_info 1 'DMRAID: Adding support (compiling binaries)...'
 129                 compile_dmraid
 130                 /bin/tar -jxpf "${DMRAID_BINCACHE}" -C "${TEMP}/initrd-temp" ||
 131                         gen_die "Could not extract dmraid binary cache!";
 132         fi
 133
 134         # LVM2
 135         if [ "${LVM2}" = '1' ]
 136         then
 137                 if [ -e '/sbin/lvm' ] && ldd /sbin/lvm|grep -q 'not a dynamic executable';
 138                 then
 139                         print_info 1 'LVM2: Adding support (using local static binaries)...'
 140                         cp /sbin/lvm "${TEMP}/initrd-temp/bin/lvm" ||
 141                                 gen_die 'Could not copy over lvm!'
 142                         ln "${TEMP}/initrd-temp/bin/lvm" "${TEMP}/initrd-temp/bin/vgscan" ||
 143                                 gen_die 'Could not symlink lvm -> vgscan!'
 144                         ln "${TEMP}/initrd-temp/bin/lvm" "${TEMP}/initrd-temp/bin/vgchange" ||
 145                                 gen_die 'Could not symlink lvm -> vgchange!'
 146                 else
 147                         print_info 1 'LVM2: Adding support (compiling binaries)...'
 148                         compile_lvm2
 149
 150                         /bin/tar -jxpf "${LVM2_BINCACHE}" -C "${TEMP}/initrd-temp" ||
 151                                 gen_die "Could not extract lvm2 binary cache!";
 152                         mv ${TEMP}/initrd-temp/bin/lvm.static ${TEMP}/initrd-temp/bin/lvm ||
 153                                 gen_die 'LVM2 error: Could not move lvm.static to lvm!'
 154                         for i in vgchange vgscan; do
 155                                 ln  ${TEMP}/initrd-temp/bin/lvm ${TEMP}/initrd-temp/bin/$i ||
 156                                         gen_die "LVM2 error: Could not link ${i}!"
 157                         done
 158                 fi
 159         fi
 160
 161         # EVMS2
 162         if [ "${EVMS2}" = '1' ]
 163         then
 164                 if [ -e '/sbin/evms_activate' ]
 165                 then
 166                         print_info 1 'EVMS2: Adding support...'
 167                         mkdir -p ${TEMP}/initrd-temp/lib
 168                         cp -a /lib/ld-* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 169                         cp -a /lib/libc-* /lib/libc.* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 170                         cp -a /lib/libdl-* /lib/libdl.* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 171                         cp -a /lib/libpthread* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 172                         cp -a /lib/libuuid*so* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 173                         cp -a /lib/libevms*so* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 174                         cp -a /lib/evms "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 175                         cp -a /lib/evms/* "${TEMP}/initrd-temp/lib/evms" || gen_die 'Could not copy files for EVMS2!'
 176                         cp -a /etc/evms.conf "${TEMP}/initrd-temp/etc" || gen_die 'Could not copy files for EVMS2!'
 177                         cp /sbin/evms_activate "${TEMP}/initrd-temp/bin/evms_activate" || gen_die 'Could not copy over vgscan!'
 178                         # Fix EVMS2 complaining that it cant find the swap utilities.
 179                         # These are not required in the initrd
 180                         for swap_libs in "${TEMP}/initrd-temp/lib/evms/*/swap*.so"
 181                         do
 182                                 rm $swap_libs
 183                         done
 184                 fi
 185         fi
 186
 187         for i in '[' ash basename cat chroot clear cp dirname echo env false find \
 188         grep gunzip gzip ln ls loadkmap losetup lsmod mkdir mknod more mount mv \
 189         pivot_root ps awk pwd rm rmdir rmmod sed sh sleep tar test touch true umount uname \
 190         xargs yes zcat chmod chown cut kill killall; do
 191                 rm -f ${TEMP}/initrd-temp/bin/$i > /dev/null
 192                 ln  ${TEMP}/initrd-temp/bin/busybox ${TEMP}/initrd-temp/bin/$i ||
 193                         gen_die "Busybox error: could not link ${i}!"
 194         done
 195 }
 196
 197 print_list()
 198 {
 199         local x
 200         for x in ${*}
 201         do
 202                 echo ${x}
 203         done
 204 }
 205
 206 create_initrd_modules() {
 207         local group
 208         local group_modules
 209
 210         if [ "${PAT}" -gt "4" ]
 211         then
 212                 MOD_EXT=".ko"
 213         else
 214                 MOD_EXT=".o"
 215         fi
 216
 217         print_info 2 "initrd: >> Searching for modules..."
 218
 219         if [ "${INSTALL_MOD_PATH}" != '' ]
 220         then
 221                 cd ${INSTALL_MOD_PATH}
 222         else
 223                 cd /
 224         fi
 225
 226         for i in `gen_dep_list`
 227         do
 228                 mymod=`find ./lib/modules/${KV} -name "${i}${MOD_EXT}" 2>/dev/null| head -n 1`
 229                 if [ -z "${mymod}" ]
 230                 then
 231                         print_warning 2 "Warning :: ${i}${MOD_EXT} not found; skipping..."
 232                         continue;
 233                 fi
 234                 print_info 2 "initrd: >> Copying ${i}${MOD_EXT}..."
 235                 cp -ax --parents "${mymod}" "${TEMP}/initrd-temp"
 236         done
 237
 238         cp -ax --parents ./lib/modules/${KV}/modules* ${TEMP}/initrd-temp 2>/dev/null
 239
 240         mkdir -p "${TEMP}/initrd-temp/etc/modules"
 241         for group_modules in ${!MODULES_*}; do
 242                 group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
 243                 print_list ${!group_modules} > "${TEMP}/initrd-temp/etc/modules/${group}"
 244         done
 245 }
 246
 247 create_initrd_aux() {
 248         if [ -f "${CMD_LINUXRC}" ]
 249         then
 250                 cp "${CMD_LINUXRC}" "${TEMP}/initrd-temp/linuxrc"
 251                 print_info 2 "        >> Copying user specified linuxrc: ${CMD_LINUXRC}"
 252         else
 253                 if [ -f "${GK_SHARE}/${ARCH}/linuxrc" ]
 254                 then
 255                         cp "${GK_SHARE}/${ARCH}/linuxrc" "${TEMP}/initrd-temp/linuxrc"
 256                 else
 257                         cp "${GK_SHARE}/generic/linuxrc" "${TEMP}/initrd-temp/linuxrc"
 258                 fi
 259         fi
 260
 261         if [ -f "${GK_SHARE}/${ARCH}/initrd.scripts" ]
 262         then
 263                 cp "${GK_SHARE}/${ARCH}/initrd.scripts" "${TEMP}/initrd-temp/etc/initrd.scripts"
 264         else
 265                 cp "${GK_SHARE}/generic/initrd.scripts" "${TEMP}/initrd-temp/etc/initrd.scripts"
 266         fi
 267
 268         if [ -f "${GK_SHARE}/${ARCH}/initrd.defaults" ]
 269         then
 270                 cp "${GK_SHARE}/${ARCH}/initrd.defaults" "${TEMP}/initrd-temp/etc/initrd.defaults"
 271         else
 272                 cp "${GK_SHARE}/generic/initrd.defaults" "${TEMP}/initrd-temp/etc/initrd.defaults"
 273         fi
 274
 275         echo -n 'HWOPTS="$HWOPTS ' >> "${TEMP}/initrd-temp/etc/initrd.defaults"
 276         for group_modules in ${!MODULES_*}; do
 277                 group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
 278                 echo -n "${group} " >> "${TEMP}/initrd-temp/etc/initrd.defaults"
 279         done
 280         echo '"' >> "${TEMP}/initrd-temp/etc/initrd.defaults"
 281
 282         if [ -f "${GK_SHARE}/${ARCH}/modprobe" ]
 283         then
 284                 cp "${GK_SHARE}/${ARCH}/modprobe" "${TEMP}/initrd-temp/sbin/modprobe"
 285         else
 286                 cp "${GK_SHARE}/generic/modprobe" "${TEMP}/initrd-temp/sbin/modprobe"
 287         fi
 288         if isTrue $CMD_DOKEYMAPAUTO
 289         then
 290                 echo 'MY_HWOPTS="${MY_HWOPTS} keymap"' >> ${TEMP}/initrd-temp/etc/initrd.defaults
 291         fi
 292         mkdir -p "${TEMP}/initrd-temp/lib/keymaps"
 293         /bin/tar -C "${TEMP}/initrd-temp/lib/keymaps" -zxf "${GK_SHARE}/generic/keymaps.tar.gz"
 294
 295         cd ${TEMP}/initrd-temp/sbin && ln -s ../linuxrc init
 296         cd ${OLDPWD}
 297         chmod +x "${TEMP}/initrd-temp/linuxrc"
 298         chmod +x "${TEMP}/initrd-temp/etc/initrd.scripts"
 299         chmod +x "${TEMP}/initrd-temp/etc/initrd.defaults"
 300         chmod +x "${TEMP}/initrd-temp/sbin/modprobe"
 301 }
 302
 303 calc_initrd_size() {
 304         local TEST
 305         cd ${TEMP}/initrd-temp/
 306         TEST=`du -sk 2> /dev/null`
 307         echo $TEST | cut "-d " -f1
 308 }
 309
 310 create_initrd() {
 311         local MOD_EXT
 312
 313         print_info 1 "initrd: >> Initializing..."
 314         create_base_initrd_sys
 315
 316         if [ "${NOINITRDMODULES}" = '' ]
 317         then
 318                 print_info 1 "        >> Copying modules..."
 319                 create_initrd_modules
 320         else
 321                 print_info 1 "initrd: Not copying modules..."
 322         fi
 323
 324         print_info 1 "        >> Copying auxilary files..."
 325         create_initrd_aux
 326
 327         INITRD_CALC_SIZE=`calc_initrd_size`
 328         INITRD_SIZE=`expr ${INITRD_CALC_SIZE} + 100`
 329         print_info 1 "        :: Size is at ${INITRD_SIZE}K"
 330         print_info 1 "        >> Creating loopback filesystem..."
 331         create_initrd_loop ${INITRD_SIZE}
 332
 333         print_info 1 "        >> Moving initrd files to the loopback..."
 334         move_initrd_to_loop
 335
 336         print_info 1 "        >> Cleaning up and compressing the initrd..."
 337         create_initrd_unmount_loop
 338
 339         if [ "${COMPRESS_INITRD}" ]
 340         then
 341                 gzip -f -9 ${TEMP}/initrd-${KV}
 342                 mv ${TEMP}/initrd-${KV}.gz ${TEMP}/initrd-${KV}
 343         fi
 344
 345         if [ "${BOOTSPLASH}" -eq "1" ]
 346         then
 347                 if [ -x /sbin/splash ]
 348                 then
 349                         [ -z "${BOOTSPLASH_THEME}" ] && [ -e /etc/conf.d/bootsplash.conf ] && source /etc/conf.d/bootsplash.conf
 350                         [ -z "${BOOTSPLASH_THEME}" ] && [ -e /etc/conf.d/bootsplash ] && source /etc/conf.d/bootsplash
 351                         [ -z "${BOOTSPLASH_THEME}" ] && BOOTSPLASH_THEME=default
 352                         print_info 1 "        >> Installing bootsplash [ using the ${BOOTSPLASH_THEME} theme ]..."
 353                         for bootRes in '800x600' '1024x768' '1280x1024' '1600x1200'
 354                         do
 355                                 if [ -f "/etc/bootsplash/${BOOTSPLASH_THEME}/config/bootsplash-${bootRes}.cfg" ]
 356                                 then
 357                                         /sbin/splash -s -f /etc/bootsplash/${BOOTSPLASH_THEME}/config/bootsplash-${bootRes}.cfg >> ${TEMP}/initrd-${KV} ||
 358                                                 gen_die "Error: could not copy ${bootRes} bootsplash!"
 359                                 else
 360                                         print_warning 1 "splash: Did not find a bootsplash for the ${bootRes} resolution..."
 361                                 fi
 362                         done
 363                 else
 364                         print_warning 1 '        >> No bootsplash detected; skipping!'
 365                 fi
 366         fi
 367         if ! isTrue "${CMD_NOINSTALL}"
 368         then
 369                 cp ${TEMP}/initrd-${KV} /boot/initrd-${KNAME}-${ARCH}-${KV} ||
 370                         gen_die 'Could not copy the initrd to /boot!'
 371         fi
 372         [ "${KERNEL_MAKE_DIRECTIVE}" == 'zImage.initrd' ] ||
 373                 [ "${KERNEL_MAKE_DIRECTIVE_2}" == 'zImage.initrd' ] &&
 374                 cp ${TEMP}/initrd-${KV} ${KERNEL_DIR}/arch/${ARCH}/boot/images/ramdisk.image.gz
 375 }