livecd/runscript-support/kmerge.sh

   1 #!/bin/bash
   2 # Copyright 1999-2004 Gentoo Foundation
   3 # Distributed under the terms of the GNU General Public License v2
   4 # $Header: /var/cvsroot/gentoo/src/catalyst/livecd/runscript-support/Attic/kmerge.sh,v 1.17 2004/10/21 17:06:21 wolf31o2 Exp $
   5
   6 die() {
   7         echo "$1"
   8         exit 1
   9 }
  10
  11 build_kernel() {
  12         # default genkernel args
  13         GK_ARGS="${clst_livecd_gk_mainargs} \
  14                          ${clst_livecd_gk_kernargs} \
  15                          --kerneldir=/usr/src/linux \
  16                          --do-keymap-auto \
  17                          --kernel-config=/var/tmp/${clst_kname}.config \
  18                          --minkernpackage=/usr/portage/packages/gk_binaries/${clst_kname}-${clst_version_stamp}.tar.bz2 all"
  19
  20         # extra genkernel options that we have to test for
  21         if [ "${clst_livecd_splash_type}" == "bootsplash" -a -n "${clst_livecd_splash_theme}" ]
  22         then
  23                 GK_ARGS="${GK_ARGS} --bootsplash=${clst_livecd_splash_theme}"
  24         fi
  25
  26         if [ "${clst_livecd_splash_type}" == "gensplash" -a -n "${clst_livecd_splash_theme}" ]
  27         then
  28                 GK_ARGS="${GK_ARGS} --gensplash=${clst_livecd_splash_theme}"
  29         fi
  30
  31         if [  -e "/var/tmp/${clst_kname}.postconf" ]
  32         then
  33                 for x in $( cat /var/tmp/${clst_kname}.postconf )
  34                 do
  35                         clst_kernel_postconf="${clst_kernel_postconf} ${x}"
  36                 done
  37                 GK_ARGS="${GK_ARGS} --postconf=\"${clst_kernel_postconf}\""
  38         fi
  39
  40         if [ -e "/var/tmp/${clst_kname}.packages" ]
  41         then
  42                 for x in $( cat /var/tmp/${clst_kname}.packages )
  43                 do
  44                         # we don't want to use the pkgcache for these since the results
  45                         # are kernel-dependent.
  46                         clst_kernel_merge="${clst_kernel_merge} ${x}"
  47                 done
  48                 GK_ARGS="${GK_ARGS} --callback=\"${clst_kernel_merge}\""
  49         fi
  50
  51         if [ "${clst_livecd_devmanager}" == "udev" ]
  52         then
  53                 GK_ARGS="${GK_ARGS} --udev"
  54         fi
  55
  56         # build with genkernel using the set options
  57         # callback is put here to avoid escaping issues
  58         genkernel ${GK_ARGS} || exit 1
  59
  60         # pack up the modules for resuming
  61         if [ -n "${clst_KERNCACHE}" ]
  62         then
  63                 tar cjpf /usr/portage/packages/gk_binaries/${1}-modules-${clst_version_stamp}.tar.bz2 \
  64                         /lib/modules/"${1}" || die "Could not package kernel modules, exiting"
  65         fi
  66
  67 }
  68
  69 # Script to build each kernel, kernel-related packages
  70 /usr/sbin/env-update
  71 source /etc/profile
  72
  73 [ -n "${clst_ENVSCRIPT}" ] && source /tmp/envscript
  74 export CONFIG_PROTECT="-*"
  75 rm -f /usr/src/linux
  76
  77 #set the timezone for the kernel build
  78 rm /etc/localtime
  79 ln -s /usr/share/zoneinfo/UTC /etc/localtime
  80
  81 [ -e "/var/tmp/${clst_kname}.use" ] && export USE="$( cat /var/tmp/${clst_kname}.use )" || unset USE
  82 [ -e "/var/tmp/${clst_kname}.gk_kernargs" ] && source /var/tmp/${clst_kname}.gk_kernargs
  83
  84 # Don't use pkgcache here, as the kernel source may get emerge with different USE variables
  85 # (and thus different patches enabled/disabled.) Also, there's no real benefit in using the
  86 # pkgcache for kernel source ebuilds.
  87 emerge "${clst_ksource}" || exit 1
  88 [ ! -e /usr/src/linux ] && die "Can't find required directory /usr/src/linux"
  89
  90 #if catalyst has set NULL_VALUE, extraversion wasn't specified so we skip this part
  91 if [ "${clst_kextversion}" != "NULL_VALUE" ]
  92 then
  93         sed -i -e "s:EXTRAVERSION \(=.*\):EXTRAVERSION \1-${clst_kextversion}:" /usr/src/linux/Makefile
  94 fi
  95
  96 if [ -n "${clst_CCACHE}" ]
  97 then
  98         #enable ccache for genkernel
  99         export PATH="/usr/lib/ccache/bin:${PATH}"
 100 fi
 101
 102 # grep out the kernel version so that we can do our modules magic
 103 VER=`grep ^VERSION\ \= /usr/src/linux/Makefile | awk '{ print $3 };'`
 104 PAT=`grep ^PATCHLEVEL\ \= /usr/src/linux/Makefile | awk '{ print $3 };'`
 105 SUB=`grep ^SUBLEVEL\ \= /usr/src/linux/Makefile | awk '{ print $3 };'`
 106 EXV=`grep ^EXTRAVERSION\ \= /usr/src/linux/Makefile | sed -e "s/EXTRAVERSION =//" -e "s/ //g"`
 107 clst_fudgeuname=${VER}.${PAT}.${SUB}${EXV}
 108
 109 # kernel building happens here
 110 # does the old config exist? if it does not, we build by default
 111 if [ -e "/usr/portage/packages/gk_binaries/${clst_kname}-${clst_version_stamp}.config" ]
 112 then
 113         # test to see if the kernel .configs are the same, if so, then we skip kernel building
 114         test1=$(md5sum /var/tmp/${clst_kname}.config | cut -d " " -f 1)
 115         test2=$(md5sum /usr/portage/packages/gk_binaries/${clst_kname}-${clst_version_stamp}.config | cut -d " " -f 1)
 116         if [ "${test1}" == "${test2}" -a -n "${clst_KERNCACHE}" ]
 117         then
 118                 echo
 119                 echo "No kernel configuration change, skipping kernel build..."
 120                 echo
 121                 sleep 5
 122
 123                 # unpack our modules to the LiveCD fs
 124                 echo
 125                 echo "Unpacking kernel modules from the previous build..."
 126                 echo
 127                 [ ! -d /lib/modules ] && mkdir /lib/modules
 128                 tar xjpf /usr/portage/packages/gk_binaries/${clst_fudgeuname}-modules-${clst_version_stamp}.tar.bz2 \
 129                         -C / || die "Could not unpack kernel modules"
 130         else
 131                 build_kernel ${clst_fudgeuname}
 132         fi
 133
 134 else
 135         build_kernel ${clst_fudgeuname}
 136
 137 fi
 138
 139 /sbin/modules-update --assume-kernel=${clst_fudgeuname}
 140
 141 #now the unmerge... (wipe db entry)
 142 emerge -C ${clst_ksource}
 143 unset USE
 144
 145 # keep the config around so that we can resume at some point
 146 [ -n "${clst_KERNCACHE}" ] && cp /var/tmp/${clst_kname}.config /usr/portage/packages/gk_binaries/${clst_kname}-${clst_version_stamp}.config