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1 # Copyright 1999-2008 Gentoo Foundation
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2 # Distributed under the terms of the GNU General Public License v2
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3 # $Header: /var/cvsroot/gentoo-x86/sys-boot/grub/grub-0.97-r8.ebuild,v 1.1 2008/11/06 01:28:56 robbat2 Exp $
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4
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5 # XXX: we need to review menu.lst vs grub.conf handling. We've been converting
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6 # all systems to grub.conf (and symlinking menu.lst to grub.conf), but
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7 # we never updated any of the source code (it still all wants menu.lst),
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8 # and there is no indication that upstream is making the transition.
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9
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10 inherit mount-boot eutils flag-o-matic toolchain-funcs autotools
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11
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12 PATCHVER="1.8" # Should match the revision ideally
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13 DESCRIPTION="GNU GRUB Legacy boot loader"
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14 HOMEPAGE="http://www.gnu.org/software/grub/"
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15 SRC_URI="mirror://gentoo/${P}.tar.gz
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16 ftp://alpha.gnu.org/gnu/${PN}/${P}.tar.gz
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17 mirror://gentoo/splash.xpm.gz
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18 mirror://gentoo/${P}-patches-${PATCHVER}.tar.bz2"
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19
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20 LICENSE="GPL-2"
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21 SLOT="0"
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22 KEYWORDS="~amd64 ~x86 ~x86-fbsd"
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23 IUSE="custom-cflags ncurses netboot static"
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24
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25 DEPEND="ncurses? (
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26 >=sys-libs/ncurses-5.2-r5
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27 amd64? ( app-emulation/emul-linux-x86-baselibs )
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28 )"
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29 PROVIDE="virtual/bootloader"
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30
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31 src_unpack() {
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32 unpack ${A}
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33 cd "${S}"
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34
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35 # patch breaks booting for some people #111885
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36 rm "${WORKDIR}"/patch/400_*
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37
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38 # Grub will not handle a kernel larger than EXTENDED_MEMSIZE Mb as
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39 # discovered in bug 160801. We can change this, however, using larger values
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40 # for this variable means that Grub needs more memory to run and boot. For a
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41 # kernel of size N, Grub needs (N+1)*2. Advanced users should set a custom
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42 # value in make.conf, it is possible to make kernels ~16Mb in size, but it
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43 # needs the kitchen sink built-in.
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44 local t="custom"
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45 if [[ -z ${GRUB_MAX_KERNEL_SIZE} ]] ; then
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46 case $(tc-arch) in
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47 amd64) GRUB_MAX_KERNEL_SIZE=7 ;;
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48 x86) GRUB_MAX_KERNEL_SIZE=3 ;;
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49 esac
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50 t="default"
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51 fi
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52 einfo "Grub will support the ${t} maximum kernel size of ${GRUB_MAX_KERNEL_SIZE} Mb (GRUB_MAX_KERNEL_SIZE)"
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53
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54 sed -i \
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55 -e "/^#define.*EXTENDED_MEMSIZE/s,3,${GRUB_MAX_KERNEL_SIZE},g" \
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56 "${S}"/grub/asmstub.c \
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57 || die "Failed to hack memory size"
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58
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59 if [[ -n ${PATCHVER} ]] ; then
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60 EPATCH_SUFFIX="patch"
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61 epatch "${WORKDIR}"/patch
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62 epatch "${FILESDIR}/grub-0.97-ext4extents.patch"
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63 eautoreconf
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64 fi
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65 }
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66
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67 src_compile() {
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68 filter-flags -fPIE #168834
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69
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70 use amd64 && multilib_toolchain_setup x86
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71
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72 unset BLOCK_SIZE #73499
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73
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74 ### i686-specific code in the boot loader is a bad idea; disabling to ensure
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75 ### at least some compatibility if the hard drive is moved to an older or
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76 ### incompatible system.
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77
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78 # grub-0.95 added -fno-stack-protector detection, to disable ssp for stage2,
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79 # but the objcopy's (faulty) test fails if -fstack-protector is default.
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80 # create a cache telling configure that objcopy is ok, and add -C to econf
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81 # to make use of the cache.
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82 #
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83 # CFLAGS has to be undefined running econf, else -fno-stack-protector detection fails.
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84 # STAGE2_CFLAGS is not allowed to be used on emake command-line, it overwrites
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85 # -fno-stack-protector detected by configure, removed from netboot's emake.
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86 use custom-cflags || unset CFLAGS
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87
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88 export grub_cv_prog_objcopy_absolute=yes #79734
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89 use static && append-ldflags -static
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90
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91 # Per bug 216625, the emul packages do not provide .a libs for performing
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92 # suitable static linking
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93 if use amd64 && use static ; then
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94 if [ -z "${GRUB_STATIC_PACKAGE_BUILDING}" ]; then
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95 die "You must use the grub-static package if you want a static Grub on amd64!"
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96 else
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97 eerror "You have set GRUB_STATIC_PACKAGE_BUILDING. This"
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98 eerror "is specifically intended for building the tarballs for the"
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99 eerror "grub-static package via USE='static -ncurses'."
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100 eerror "All bets are now off."
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101 ebeep 10
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102 fi
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103 fi
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104
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105 # build the net-bootable grub first, but only if "netboot" is set
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106 if use netboot ; then
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107 econf \
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108 --libdir=/lib \
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109 --datadir=/usr/lib/grub \
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110 --exec-prefix=/ \
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111 --disable-auto-linux-mem-opt \
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112 --enable-diskless \
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113 --enable-{3c{5{03,07,09,29,95},90x},cs89x0,davicom,depca,eepro{,100}} \
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114 --enable-{epic100,exos205,ni5210,lance,ne2100,ni{50,65}10,natsemi} \
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115 --enable-{ne,ns8390,wd,otulip,rtl8139,sis900,sk-g16,smc9000,tiara} \
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116 --enable-{tulip,via-rhine,w89c840} || die "netboot econf failed"
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117
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118 emake w89c840_o_CFLAGS="-O" || die "making netboot stuff"
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119
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120 mv -f stage2/{nbgrub,pxegrub} "${S}"/
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121 mv -f stage2/stage2 stage2/stage2.netboot
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122
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123 make clean || die "make clean failed"
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124 fi
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125
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126 # Now build the regular grub
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127 # Note that FFS and UFS2 support are broken for now - stage1_5 files too big
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128 econf \
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129 --libdir=/lib \
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130 --datadir=/usr/lib/grub \
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131 --exec-prefix=/ \
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132 --disable-auto-linux-mem-opt \
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133 $(use_with ncurses curses) \
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134 || die "econf failed"
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135
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136 # sanity check due to common failure
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137 use ncurses && ! grep -qs "HAVE_LIBCURSES.*1" config.h && die "USE=ncurses but curses not found"
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138
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139 emake || die "making regular stuff"
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140 }
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141
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142 src_test() {
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143 # non-default block size also give false pass/fails.
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144 unset BLOCK_SIZE
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145 make check || die "make check failed"
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146 }
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147
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148 src_install() {
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149 emake DESTDIR="${D}" install || die
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150 if use netboot ; then
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151 exeinto /usr/lib/grub/${CHOST}
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152 doexe nbgrub pxegrub stage2/stage2.netboot || die "netboot install"
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153 fi
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154
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155 dodoc AUTHORS BUGS ChangeLog NEWS README THANKS TODO
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156 newdoc docs/menu.lst grub.conf.sample
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157 dodoc "${FILESDIR}"/grub.conf.gentoo
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158 prepalldocs
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159
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160 [ -n "${GRUB_STATIC_PACKAGE_BUILDING}" ] && \
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161 mv \
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162 "${D}"/usr/share/doc/${PF} \
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163 "${D}"/usr/share/doc/grub-static-${PF/grub-}
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164
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165 insinto /usr/share/grub
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166 doins "${DISTDIR}"/splash.xpm.gz
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167 }
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168
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169 setup_boot_dir() {
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170 local boot_dir=$1
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171 local dir=${boot_dir}
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172
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173 [[ ! -e ${dir} ]] && die "${dir} does not exist!"
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174 [[ ! -L ${dir}/boot ]] && ln -s . "${dir}/boot"
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175 dir="${dir}/grub"
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176 if [[ ! -e ${dir} ]] ; then
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177 mkdir "${dir}" || die "${dir} does not exist!"
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178 fi
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179
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180 # change menu.lst to grub.conf
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181 if [[ ! -e ${dir}/grub.conf ]] && [[ -e ${dir}/menu.lst ]] ; then
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182 mv -f "${dir}"/menu.lst "${dir}"/grub.conf
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183 ewarn
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184 ewarn "*** IMPORTANT NOTE: menu.lst has been renamed to grub.conf"
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185 ewarn
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186 fi
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187
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188 if [[ ! -e ${dir}/menu.lst ]]; then
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189 einfo "Linking from new grub.conf name to menu.lst"
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190 ln -snf grub.conf "${dir}"/menu.lst
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191 fi
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192
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193 if [[ -e ${dir}/stage2 ]] ; then
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194 mv "${dir}"/stage2{,.old}
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195 ewarn "*** IMPORTANT NOTE: you must run grub and install"
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196 ewarn "the new version's stage1 to your MBR. Until you do,"
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197 ewarn "stage1 and stage2 will still be the old version, but"
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198 ewarn "later stages will be the new version, which could"
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199 ewarn "cause problems such as an unbootable system."
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200 ewarn "This means you must use either grub-install or perform"
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201 ewarn "root/setup manually! For more help, see the handbook:"
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202 ewarn "http://www.gentoo.org/doc/en/handbook/handbook-${ARCH}.xml?part=1&chap=10#grub-install-auto"
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203 ebeep
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204 fi
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205
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206 einfo "Copying files from /lib/grub, /usr/lib/grub and /usr/share/grub to ${dir}"
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207 for x in \
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208 "${ROOT}"/lib*/grub/*/* \
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209 "${ROOT}"/usr/lib*/grub/*/* \
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210 "${ROOT}"/usr/share/grub/* ; do
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211 [[ -f ${x} ]] && cp -p "${x}" "${dir}"/
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212 done
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213
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214 if [[ ! -e ${dir}/grub.conf ]] ; then
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215 s="${ROOT}/usr/share/doc/${PF}/grub.conf.gentoo"
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216 [[ -e "${s}" ]] && cat "${s}" >${dir}/grub.conf
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217 [[ -e "${s}.gz" ]] && zcat "${s}.gz" >${dir}/grub.conf
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218 [[ -e "${s}.bz2" ]] && bzcat "${s}.bz2" >${dir}/grub.conf
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219 fi
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220
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221 # Per bug 218599, we support grub.conf.install for users that want to run a
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222 # specific set of Grub setup commands rather than the default ones.
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223 grub_config=${dir}/grub.conf.install
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224 [[ -e ${grub_config} ]] || grub_config=${dir}/grub.conf
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225 if [[ -e ${grub_config} ]] ; then
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226 egrep \
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227 -v '^[[:space:]]*(#|$|default|fallback|initrd|password|splashimage|timeout|title)' \
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228 "${grub_config}" | \
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229 /sbin/grub --batch \
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230 --device-map="${dir}"/device.map \
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231 > /dev/null
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232 fi
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233
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234 # the grub default commands silently piss themselves if
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235 # the default file does not exist ahead of time
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236 if [[ ! -e ${dir}/default ]] ; then
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237 grub-set-default --root-directory="${boot_dir}" default
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238 fi
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239 einfo "Grub has been installed to ${boot_dir} successfully."
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240 }
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241
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242 pkg_postinst() {
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243 if [[ -n ${DONT_MOUNT_BOOT} ]]; then
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244 elog "WARNING: you have DONT_MOUNT_BOOT in effect, so you must apply"
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245 elog "the following instructions for your /boot!"
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246 elog "Neglecting to do so may cause your system to fail to boot!"
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247 elog
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248 else
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249 setup_boot_dir "${ROOT}"/boot
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250 # Trailing output because if this is run from pkg_postinst, it gets mixed into
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251 # the other output.
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252 einfo ""
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253 fi
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254 elog "To interactively install grub files to another device such as a USB"
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255 elog "stick, just run the following and specify the directory as prompted:"
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256 elog " emerge --config =${PF}"
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257 elog "Alternately, you can export GRUB_ALT_INSTALLDIR=/path/to/use to tell"
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258 elog "grub where to install in a non-interactive way."
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259
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260 }
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261
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262 pkg_config() {
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263 local dir
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264 if [ ! -d "${GRUB_ALT_INSTALLDIR}" ]; then
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265 einfo "Enter the directory where you want to setup grub:"
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266 read dir
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267 else
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268 dir="${GRUB_ALT_INSTALLDIR}"
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269 fi
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270 setup_boot_dir "${dir}"
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271 }
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