| 1 | #! /bin/sh -e |
| 2 | ### |
| 3 | ### Construct a fresh build-chroot base |
| 4 | ### |
| 5 | ### (c) 2018 Mark Wooding |
| 6 | ### |
| 7 | |
| 8 | ###----- Licensing notice --------------------------------------------------- |
| 9 | ### |
| 10 | ### This file is part of the distorted.org.uk chroot maintenance tools. |
| 11 | ### |
| 12 | ### distorted-chroot is free software: you can redistribute it and/or |
| 13 | ### modify it under the terms of the GNU General Public License as |
| 14 | ### published by the Free Software Foundation; either version 2 of the |
| 15 | ### License, or (at your option) any later version. |
| 16 | ### |
| 17 | ### distorted-chroot is distributed in the hope that it will be useful, |
| 18 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 20 | ### General Public License for more details. |
| 21 | ### |
| 22 | ### You should have received a copy of the GNU General Public License |
| 23 | ### along with distorted-chroot. If not, write to the Free Software |
| 24 | ### Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| 25 | ### USA. |
| 26 | |
| 27 | . state/config.sh # @@@config@@@ |
| 28 | |
| 29 | ## Convert the PROXY configuration setting into something that will affect |
| 30 | ## `debootstrap'. |
| 31 | case $PROXY in nil) ;; *) http_proxy=$PROXY; export PROXY ;; esac |
| 32 | |
| 33 | ## Parse the command-line. |
| 34 | badp=nil forcep=nil |
| 35 | while getopts "f" opt; do |
| 36 | case $opt in |
| 37 | f) forcep=t ;; |
| 38 | *) badp=t ;; |
| 39 | esac |
| 40 | done |
| 41 | shift $(( $OPTIND - 1 )) |
| 42 | case $# in 2) ;; *) badp=t ;; esac |
| 43 | case $badp in t) echo >&2 "usage: $0 [-f] DIST ARCH"; exit 2 ;; esac |
| 44 | d=$1 a=$2 |
| 45 | |
| 46 | case $d-$a in *-*-*) echo >&2 "$0: bad chroot name \`$arg'"; exit 2 ;; esac |
| 47 | if [ ! -d /dev/$VG/ ]; then echo >&2 "$0: no volume group \`$VG'"; exit 2; fi |
| 48 | |
| 49 | ## Decide whether we need to do special things for installing a foreign |
| 50 | ## architecture. |
| 51 | qemup=nil dbsopts= |
| 52 | for fa in $FOREIGN_ARCHS; do |
| 53 | case $fa in |
| 54 | "$a") |
| 55 | qemup=t dbsopts=--foreign |
| 56 | eval qarch=\$${a}_QEMUARCH qhost=\$${a}_QEMUHOST |
| 57 | break |
| 58 | ;; |
| 59 | esac |
| 60 | done |
| 61 | |
| 62 | ## Construct the logical volume and lay a filesystem onto it. |
| 63 | lv=$LVPREFIX$d-$a |
| 64 | mnt=$HERE/mnt/$lv |
| 65 | mkdir -p $mnt |
| 66 | if mountpoint -q $mnt; then umount $mnt; fi |
| 67 | if [ -b /dev/$VG/$lv ]; then |
| 68 | case $forcep in |
| 69 | nil) echo >&2 "$0: volume \`$lv' already exists"; exit 2 ;; |
| 70 | t) lvremove -f $VG/$lv ;; |
| 71 | esac |
| 72 | fi |
| 73 | lvcreate --yes $LVSZ -n$lv $VG |
| 74 | mkfs -j -L$d-$a /dev/$VG/$lv |
| 75 | mount -orelatime,data=writeback,commit=3600,barrier=0 /dev/$VG/$lv $mnt/ |
| 76 | mkdir -m755 $mnt/fs/ |
| 77 | chmod 750 $mnt/ |
| 78 | |
| 79 | ## Install the base system. |
| 80 | want=$BASE_PACKAGES |
| 81 | pkgs=; for p in $want; do pkgs=${pkgs:+$pkgs,}$p; done |
| 82 | eatmydata debootstrap $dbsopts --arch=$a --variant=minbase \ |
| 83 | --include=$pkgs $d $mnt/fs/ $DEBMIRROR |
| 84 | |
| 85 | ## If this is a cross-installation, then install the necessary `qemu' and |
| 86 | ## complete the installation. |
| 87 | case $qemup in |
| 88 | t) |
| 89 | install $LOCAL/cross/$d-$qhost/QEMU/qemu-$qarch-static \ |
| 90 | $mnt/fs/usr/bin/ |
| 91 | chroot $mnt/fs/ /debootstrap/debootstrap --second-stage |
| 92 | ln -sf /usr/local.schroot/cross/$d-$qhost/QEMU/qemu-$qarch-static \ |
| 93 | $mnt/fs/usr/bin/ |
| 94 | ;; |
| 95 | esac |
| 96 | |
| 97 | ## Set up `/usr/local'. |
| 98 | rm -rf $mnt/fs/usr/local/; ln -s local.schroot/$a $mnt/fs/usr/local |
| 99 | |
| 100 | ## Install the `apt' configuration. |
| 101 | rm -rf $mnt/fs/etc/apt/apt.conf $mnt/fs/etc/apt/sources.list |
| 102 | for c in $LOCAL/etc/apt/apt.conf.d/*; do |
| 103 | ln -s /usr/local.schroot/${c#$LOCAL/} $mnt/fs/etc/apt/apt.conf.d/ |
| 104 | done |
| 105 | ln -s /usr/local.schroot/etc/apt/sources.$d $mnt/fs/etc/apt/sources.list |
| 106 | |
| 107 | cat >$mnt/fs/etc/apt/apt.conf.d/20arch <<EOF |
| 108 | ### -*-conf-*- |
| 109 | |
| 110 | APT { |
| 111 | Architecture "$a"; |
| 112 | }; |
| 113 | EOF |
| 114 | |
| 115 | ## Set up the locale and time zone from the host system. |
| 116 | cp /etc/locale.gen /etc/timezone $mnt/fs/etc/ |
| 117 | tz=$(cat /etc/timezone); ln -sf /usr/share/zoneinfo/$tz $mnt/fs/etc/localtime |
| 118 | ln -sf /proc/mounts $mnt/fs/etc/mtab |
| 119 | |
| 120 | cp /etc/default/locale $mnt/fs/etc/default/ |
| 121 | |
| 122 | ## Prevent daemons from starting within the chroot. |
| 123 | cat >$mnt/fs/usr/sbin/policy-rc.d <<EOF |
| 124 | #! /bin/sh |
| 125 | echo >&2 "policy-rc.d: Services disabled by policy." |
| 126 | exit 101 |
| 127 | EOF |
| 128 | chmod +x $mnt/fs/usr/sbin/policy-rc.d |
| 129 | |
| 130 | ## Hack the dynamic linker to prefer libraries in `/usr' over `/usr/local'. |
| 131 | cat >$mnt/fs/etc/ld.so.conf.d/libc.conf <<EOF |
| 132 | # libc default configuration |
| 133 | EOF |
| 134 | cat >$mnt/fs/etc/ld.so.conf.d/zzz-local.conf <<EOF |
| 135 | ### -*-conf-*- |
| 136 | ### Local hack to make /usr/local/ late. |
| 137 | /usr/local/lib |
| 138 | EOF |
| 139 | |
| 140 | ## We're done setting the chroot environment up. |
| 141 | umount $mnt/ |
| 142 | |
| 143 | ## If this is a foreign architecture then we need to set it up. |
| 144 | case $qemup in |
| 145 | t) |
| 146 | ## Keep the chroot's native Qemu out of our way: otherwise we'll stop |
| 147 | ## being able to run programs in the chroot. There's a hack here because |
| 148 | ## the `--no-rename' option was required in the same version in which is |
| 149 | ## was introduced, so there's no single incantation that will work across |
| 150 | ## the boundary. |
| 151 | schroot -uroot -csource:$lv -- eatmydata sh -e -c " |
| 152 | if dpkg-divert >/dev/null 2>&1 --no-rename --help |
| 153 | then no_rename=--no-rename |
| 154 | else no_rename= |
| 155 | fi |
| 156 | |
| 157 | dpkg-divert --package install-cross-tools \$no_rename \ |
| 158 | --divert /usr/bin/qemu-$qarch-static.$a --add /usr/bin/qemu-$qarch-static" |
| 159 | |
| 160 | ## Install faster native tools. |
| 161 | $STATE/bin/install-cross-tools $d $a |
| 162 | esac |
| 163 | |
| 164 | ## Install extra packages now that everything should go fairly quickly. |
| 165 | want=$EXTRA_PACKAGES |
| 166 | pkgs=; for p in $want; do pkgs=${pkgs:+$pkgs,}$p; done |
| 167 | schroot -uroot -csource:$lv -- eatmydata apt-get -y install $pkgs |
| 168 | |
| 169 | ## Set the chroot's package state up properly. |
| 170 | schroot -uroot -csource:$lv -- eatmydata sh -e -c ' |
| 171 | apt-get update |
| 172 | apt-get -y upgrade |
| 173 | locale-gen |
| 174 | ldconfig |
| 175 | apt-get -y autoremove |
| 176 | apt-get clean' |
| 177 | |
| 178 | ###----- That's all, folks -------------------------------------------------- |