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                         mkdir -p ${TEMP}/initrd-temp/sbin
 169                         mkdir -p ${TEMP}/initrd-temp/etc
 170                         cp -a /lib/ld-* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 171                         cp -a /lib/libc-* /lib/libc.* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 172                         cp -a /lib/libdl-* /lib/libdl.* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 173                         cp -a /lib/libpthread* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 174                         cp -a /lib/libuuid*so* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 175                         cp -a /lib/libevms*so* "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 176                         cp -a /lib/evms "${TEMP}/initrd-temp/lib" || gen_die 'Could not copy files for EVMS2!'
 177                         cp -a /lib/evms/* "${TEMP}/initrd-temp/lib/evms" || gen_die 'Could not copy files for EVMS2!'
 178                         cp -a /etc/evms.conf "${TEMP}/initrd-temp/etc" || gen_die 'Could not copy files for EVMS2!'
 179                         cp /sbin/evms_activate "${TEMP}/initrd-temp/sbin/evms_activate" || gen_die 'Could not copy over evms_activate!'
 180                         # Fix EVMS2 complaining that it cant find the swap utilities.
 181                         # These are not required in the initrd
 182                         for swap_libs in "${TEMP}/initrd-temp/lib/evms/*/swap*.so"
 183                         do
 184                                 rm ${swap_libs}
 185                         done
 186                 fi
 187         fi
 188
 189         for i in '[' ash basename cat chroot clear cp dirname echo env false find \
 190         grep gunzip gzip ln ls loadkmap losetup lsmod mkdir mknod more mount mv \
 191         pivot_root ps awk pwd rm rmdir rmmod sed sh sleep tar test touch true umount uname \
 192         xargs yes zcat chmod chown cut kill killall; do
 193                 rm -f ${TEMP}/initrd-temp/bin/$i > /dev/null
 194                 ln  ${TEMP}/initrd-temp/bin/busybox ${TEMP}/initrd-temp/bin/$i ||
 195                         gen_die "Busybox error: could not link ${i}!"
 196         done
 197 }
 198
 199 print_list()
 200 {
 201         local x
 202         for x in ${*}
 203         do
 204                 echo ${x}
 205         done
 206 }
 207
 208 create_initrd_modules() {
 209         local group
 210         local group_modules
 211
 212         if [ "${PAT}" -gt "4" ]
 213         then
 214                 MOD_EXT=".ko"
 215         else
 216                 MOD_EXT=".o"
 217         fi
 218
 219         print_info 2 "initrd: >> Searching for modules..."
 220
 221         if [ "${INSTALL_MOD_PATH}" != '' ]
 222         then
 223                 cd ${INSTALL_MOD_PATH}
 224         else
 225                 cd /
 226         fi
 227
 228         for i in `gen_dep_list`
 229         do
 230                 mymod=`find ./lib/modules/${KV} -name "${i}${MOD_EXT}" 2>/dev/null| head -n 1`
 231                 if [ -z "${mymod}" ]
 232                 then
 233                         print_warning 2 "Warning :: ${i}${MOD_EXT} not found; skipping..."
 234                         continue;
 235                 fi
 236                 print_info 2 "initrd: >> Copying ${i}${MOD_EXT}..."
 237                 cp -ax --parents "${mymod}" "${TEMP}/initrd-temp"
 238         done
 239
 240         cp -ax --parents ./lib/modules/${KV}/modules* ${TEMP}/initrd-temp 2>/dev/null
 241
 242         mkdir -p "${TEMP}/initrd-temp/etc/modules"
 243         for group_modules in ${!MODULES_*}; do
 244                 group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
 245                 print_list ${!group_modules} > "${TEMP}/initrd-temp/etc/modules/${group}"
 246         done
 247 }
 248
 249 create_initrd_aux() {
 250         if [ -f "${CMD_LINUXRC}" ]
 251         then
 252                 cp "${CMD_LINUXRC}" "${TEMP}/initrd-temp/linuxrc"
 253                 print_info 2 "        >> Copying user specified linuxrc: ${CMD_LINUXRC}"
 254         else
 255                 if [ -f "${GK_SHARE}/${ARCH}/linuxrc" ]
 256                 then
 257                         cp "${GK_SHARE}/${ARCH}/linuxrc" "${TEMP}/initrd-temp/linuxrc"
 258                 else
 259                         cp "${GK_SHARE}/generic/linuxrc" "${TEMP}/initrd-temp/linuxrc"
 260                 fi
 261         fi
 262
 263         if [ -f "${GK_SHARE}/${ARCH}/initrd.scripts" ]
 264         then
 265                 cp "${GK_SHARE}/${ARCH}/initrd.scripts" "${TEMP}/initrd-temp/etc/initrd.scripts"
 266         else
 267                 cp "${GK_SHARE}/generic/initrd.scripts" "${TEMP}/initrd-temp/etc/initrd.scripts"
 268         fi
 269
 270         if [ -f "${GK_SHARE}/${ARCH}/initrd.defaults" ]
 271         then
 272                 cp "${GK_SHARE}/${ARCH}/initrd.defaults" "${TEMP}/initrd-temp/etc/initrd.defaults"
 273         else
 274                 cp "${GK_SHARE}/generic/initrd.defaults" "${TEMP}/initrd-temp/etc/initrd.defaults"
 275         fi
 276
 277         echo -n 'HWOPTS="$HWOPTS ' >> "${TEMP}/initrd-temp/etc/initrd.defaults"
 278         for group_modules in ${!MODULES_*}; do
 279                 group="$(echo $group_modules | cut -d_ -f2 | tr "[:upper:]" "[:lower:]")"
 280                 echo -n "${group} " >> "${TEMP}/initrd-temp/etc/initrd.defaults"
 281         done
 282         echo '"' >> "${TEMP}/initrd-temp/etc/initrd.defaults"
 283
 284         if [ -f "${GK_SHARE}/${ARCH}/modprobe" ]
 285         then
 286                 cp "${GK_SHARE}/${ARCH}/modprobe" "${TEMP}/initrd-temp/sbin/modprobe"
 287         else
 288                 cp "${GK_SHARE}/generic/modprobe" "${TEMP}/initrd-temp/sbin/modprobe"
 289         fi
 290         if isTrue $CMD_DOKEYMAPAUTO
 291         then
 292                 echo 'MY_HWOPTS="${MY_HWOPTS} keymap"' >> ${TEMP}/initrd-temp/etc/initrd.defaults
 293         fi
 294         mkdir -p "${TEMP}/initrd-temp/lib/keymaps"
 295         /bin/tar -C "${TEMP}/initrd-temp/lib/keymaps" -zxf "${GK_SHARE}/generic/keymaps.tar.gz"
 296
 297         cd ${TEMP}/initrd-temp/sbin && ln -s ../linuxrc init
 298         cd ${OLDPWD}
 299         chmod +x "${TEMP}/initrd-temp/linuxrc"
 300         chmod +x "${TEMP}/initrd-temp/etc/initrd.scripts"
 301         chmod +x "${TEMP}/initrd-temp/etc/initrd.defaults"
 302         chmod +x "${TEMP}/initrd-temp/sbin/modprobe"
 303 }
 304
 305 calc_initrd_size() {
 306         local TEST
 307         cd ${TEMP}/initrd-temp/
 308         TEST=`du -sk 2> /dev/null`
 309         echo $TEST | cut "-d " -f1
 310 }
 311
 312 create_initrd() {
 313         local MOD_EXT
 314
 315         print_info 1 "initrd: >> Initializing..."
 316         create_base_initrd_sys
 317
 318         if [ "${NOINITRDMODULES}" = '' ]
 319         then
 320                 print_info 1 "        >> Copying modules..."
 321                 create_initrd_modules
 322         else
 323                 print_info 1 "initrd: Not copying modules..."
 324         fi
 325
 326         print_info 1 "        >> Copying auxilary files..."
 327         create_initrd_aux
 328
 329         INITRD_CALC_SIZE=`calc_initrd_size`
 330         INITRD_SIZE=`expr ${INITRD_CALC_SIZE} + 100`
 331         print_info 1 "        :: Size is at ${INITRD_SIZE}K"
 332         print_info 1 "        >> Creating loopback filesystem..."
 333         create_initrd_loop ${INITRD_SIZE}
 334
 335         print_info 1 "        >> Moving initrd files to the loopback..."
 336         move_initrd_to_loop
 337
 338         print_info 1 "        >> Cleaning up and compressing the initrd..."
 339         create_initrd_unmount_loop
 340
 341         if [ "${COMPRESS_INITRD}" ]
 342         then
 343                 gzip -f -9 ${TEMP}/initrd-${KV}
 344                 mv ${TEMP}/initrd-${KV}.gz ${TEMP}/initrd-${KV}
 345         fi
 346
 347         if [ "${BOOTSPLASH}" -eq "1" ]
 348         then
 349                 if [ -x /sbin/splash ]
 350                 then
 351                         [ -z "${BOOTSPLASH_THEME}" ] && [ -e /etc/conf.d/bootsplash.conf ] && source /etc/conf.d/bootsplash.conf
 352                         [ -z "${BOOTSPLASH_THEME}" ] && [ -e /etc/conf.d/bootsplash ] && source /etc/conf.d/bootsplash
 353                         [ -z "${BOOTSPLASH_THEME}" ] && BOOTSPLASH_THEME=default
 354                         print_info 1 "        >> Installing bootsplash [ using the ${BOOTSPLASH_THEME} theme ]..."
 355                         for bootRes in '800x600' '1024x768' '1280x1024' '1600x1200'
 356                         do
 357                                 if [ -f "/etc/bootsplash/${BOOTSPLASH_THEME}/config/bootsplash-${bootRes}.cfg" ]
 358                                 then
 359                                         /sbin/splash -s -f /etc/bootsplash/${BOOTSPLASH_THEME}/config/bootsplash-${bootRes}.cfg >> ${TEMP}/initrd-${KV} ||
 360                                                 gen_die "Error: could not copy ${bootRes} bootsplash!"
 361                                 else
 362                                         print_warning 1 "splash: Did not find a bootsplash for the ${bootRes} resolution..."
 363                                 fi
 364                         done
 365                 else
 366                         print_warning 1 '        >> No bootsplash detected; skipping!'
 367                 fi
 368         fi
 369         if ! isTrue "${CMD_NOINSTALL}"
 370         then
 371                 cp ${TEMP}/initrd-${KV} /boot/initrd-${KNAME}-${ARCH}-${KV} ||
 372                         gen_die 'Could not copy the initrd to /boot!'
 373         fi
 374         [ "${KERNEL_MAKE_DIRECTIVE}" == 'zImage.initrd' ] ||
 375                 [ "${KERNEL_MAKE_DIRECTIVE_2}" == 'zImage.initrd' ] &&
 376                 cp ${TEMP}/initrd-${KV} ${KERNEL_DIR}/arch/${ARCH}/boot/images/ramdisk.image.gz
 377 }