iankelling.org Git - automated-distro-installer/blob - fai/config/scripts/GRUB_PC/11-iank

   1 #!/bin/bash -x
   2
   3 set -eE -o pipefail
   4 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
   5
   6 if [[ $EUID != 0 ]]; then
   7   echo "$0: error: expected to be root."
   8   exit 1
   9 fi
  10
  11 if ! type -t fcopy &>/dev/null; then
  12   sudo apt-get -y install fai-client
  13 fi
  14
  15 if [[ -e /a/bin/fai/fai-wrapper ]]; then
  16   chroot() {
  17     shift
  18     "$@"
  19   }
  20 fi
  21
  22
  23
  24 # -r = recursive
  25 # -i = ignore non-matching class warnings, always exit 0
  26 # -B = no backup files
  27 fcopy -riBM /boot
  28 # this is also done by FABASE/10-misc by default.
  29 fcopy -riBM /root
  30
  31
  32 src=$FAI/distro-install-common/shadow
  33 dst=/q/root/shadow
  34 if [[ ! -e $dst && -e $src ]]; then
  35   # outside of fai context, we skip this
  36   mkdir -p $dst
  37   mount -o bind $src $dst
  38 fi
  39
  40 $FAI/distro-install-common/end
  41
  42
  43
  44 if ifclass VOL_STRETCH_BOOTSTRAP; then
  45   fcopy -riM /etc/systemd/system
  46   chroot $FAI_ROOT bash <<'EOFOUTER'
  47 systemctl enable fai_check.service
  48 EOFOUTER
  49   exit 0 # avoid unnecessary stuff in bootstrap vol
  50 fi
  51
  52
  53 # these get copied in an earlier stage by fai, but leaving it here since
  54 # I run this as a single post-fai script to update things that have changed.
  55 tmpfile1=$(mktemp)
  56 # this can fail if we need an apt update
  57 chroot $FAI_ROOT /usr/bin/apt-cache policy >$tmpfile1 ||:
  58 fcopy -riBM /etc/apt
  59 tmpfile2=$(mktemp)
  60 chroot $FAI_ROOT /usr/bin/apt-cache policy >$tmpfile2
  61 if ! diff -q $tmpfile1 $tmpfile2; then
  62   chroot $FAI_ROOT /usr/bin/apt update
  63 fi
  64
  65 # outside of fai, this seems to regularly lead to
  66 # E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)
  67 # so add a sleep. 1 sec is probably way more than needed.
  68 sleep 1
  69 f=$FAI_ROOT/var/cache/apt/pkgcache.bin
  70 if [[ ! -r $f ]] || (( $(( $(date +%s) - $(stat -c %Y $f ) )) > 60*60*2 )); then
  71   i=0
  72   while fuser $FAI_ROOT/var/lib/dpkg/lock &>/dev/null; do
  73     sleep 1
  74     i=$(( i+1 ))
  75     if (( i > 300 )); then
  76       echo "error: timed out waiting for /var/lib/dpkg/lock" >&2
  77       exit 1
  78     fi
  79     $ROOTCMD apt-get update
  80   done
  81 fi
  82
  83
  84
  85 #### misc configurations
  86 chroot $FAI_ROOT bash <<'EOFOUTER'
  87 if getent group systemd-journal >/dev/null; then
  88   # makes the journal be saved to disk.
  89   mkdir -p /var/log/journal
  90   chmod 755 /var/log/journal
  91 fi
  92 debconf-set-selections <<EOF
  93 kexec-tools kexec-tools/load_kexec boolean false
  94 EOF
  95 apt-get install -y pxe-kexec
  96
  97
  98 #### begin .ssh setup ###
  99 set -x
 100 set -eE -o pipefail
 101 mkdir -p /home/iank/.ssh
 102 f=/root/.ssh/authorized_keys
 103 if [[ -e $f ]]; then
 104    cp $f /home/iank/.ssh
 105 fi
 106 chown -R 1000:1000 /home/iank/.ssh
 107 chmod -R u=Xrw,og= /home/iank/.ssh
 108 rm -rf /root/.ssh
 109 # remove broken symlinks or the following cp will fail
 110 find /home/iank/.ssh -xtype l -exec rm '{}' \;
 111 cp -rL /home/iank/.ssh /root
 112 chown -R root:root /root/.ssh
 113 chmod 700 /root/.ssh
 114 # https://ticktockhouse.svbtle.com/my-obligatory-ubuntu-ssh-agent-post
 115 # systemctl --user is not available at fai time, so create the link ourselves
 116 d=/home/iank/.config/systemd/user/default.target.wants
 117 sudo -u iank mkdir -p $d
 118 sudo -u iank ln -sf /usr/lib/systemd/user/ssh-agent.service $d
 119 #### end .ssh setup ###
 120
 121
 122 ## duplicated in ssh-emacs-setup
 123 # done here so its setup earlier for convenience
 124 line='AcceptEnv INSIDE_EMACS BRC COLUMNS'
 125 f=/etc/ssh/sshd_config
 126 grep -xFq "$line" $f || tee -a $f <<<"$line"
 127
 128
 129 # default debian groups (jessie through buster) + adm, sudo, root
 130 for g in cdrom floppy audio dip video plugdev netdev adm sudo; do
 131   if getent gropu $g >/dev/null; then
 132     usermod -aG $g iank
 133   fi
 134 done
 135
 136 if getent group systemd-journal >/dev/null; then
 137   usermod -aG systemd-journal iank
 138 fi
 139
 140
 141 # this is usefull. Only thing reason I see this being disabled by default is
 142 # that a normal user can disrupt the system, eg cause a reboot.
 143 sed -i '$a kernel.sysrq=1
 144 /^kernel.sysrq=/d' /etc/sysctl.conf
 145 EOFOUTER
 146
 147
 148 rm -f $target/etc/resolv.conf
 149 ln -s ../run/systemd/resolve/stub-resolv.conf $target/etc/resolv.conf
 150 # needed for bitfolk image
 151 if [[ -e /a/bin/fai/fai-wrapper ]]; then
 152   systemctl enable systemd-resolved
 153   systemctl start systemd-resolved
 154 fi
 155
 156
 157 # bitfolk installer handles the rest
 158 case $HOSTNAME in
 159   bk|je) exit 0 ;;
 160 esac
 161
 162
 163 if [[ $FAI_ACTION != dirinstall ]] && ! ifclass NOCRYPT; then
 164   # luks options, see man systemd-cryptsetup-generator
 165   # all i know is that with luks.crypttab=no, swap still timed out on boot.
 166   # and with rd.luks.crypttab=no, it works.
 167   if ifclass LINODE; then
 168     speed=19200
 169     cmdline="rd.luks.crypttab=no net.ifnames=0 console=ttyS0,${speed}n8"
 170   else
 171     speed=115200
 172     cmdline="rd.luks.crypttab=no net.ifnames=0 console=ttyS0,${speed}n8 console=tty0"
 173     case $HOSTNAME in
 174       # per rubens suggestion to make a d16 more stable
 175       kd|kw) cmdline+=" pci=realloc=off" ;;
 176     esac
 177   fi
 178
 179   cat >$FAI_ROOT/etc/grub.d/40_custom <<EOF
 180 #!/bin/sh
 181 exec tail -n +3 \$0
 182 # This file provides an easy way to add custom menu entries.  Simply type the
 183 # menu entries you want to add after this comment.  Be careful not to change
 184 # the 'exec tail' line above.
 185
 186 # https://www.coreboot.org/Serial_console # tty
 187 # but removed unneeded stuff
 188
 189 serial --speed=$speed
 190 terminal_input --append  serial
 191 terminal_output --append serial
 192 EOF
 193
 194
 195   chroot $FAI_ROOT bash <<EOF
 196 set -eE -o pipefail
 197 # https://askubuntu.com/questions/33416/how-do-i-disable-the-boot-splash-screen-and-only-show-kernel-and-boot-text-inst
 198 # we remove quiet and splash, and all thats left is what we want
 199
 200 if grep -qF "$cmdline" /etc/default/grub; then
 201   # already set things, exit
 202   exit 0
 203 fi
 204 sed -ri 's/^ *GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="$cmdline"/' /etc/default/grub
 205 # on xenial, no grub is displayed at all. fix that.
 206 # found just by noticing this in the config file, and a
 207 # warning about it in error.log
 208 sed -i '/^ *GRUB_HIDDEN_TIMEOUT/d' /etc/default/grub
 209
 210 update-grub2
 211 EOF
 212 fi ##### end != dirinstall && != NOCRYPT
 213
 214
 215 # reading through the groups that iank is in but user2 isn't,
 216 for g in plugdev audio video cdrom; do
 217   $ROOTCMD usermod -a -G $g user2
 218 done
 219
 220
 221
 222 ###### begin network setup ####
 223
 224 # use old names. the idea of them changing between boots has never
 225 # happened to me and I usually only have 1 wired or other type.
 226 # If I ever do need to care about it, I will.
 227 # Strangely this didn't work on kw, so I added kernel cmdline parameter.
 228 # https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
 229 ln -sf /dev/null $target/etc/systemd/network/99-default.link
 230
 231 # use networkmanager if this host has wireless.
 232
 233 if type -p iw &>/dev/null && [[ $(iw dev) ]]; then
 234   chroot $FAI_ROOT bash <<EOF
 235 apt-get -y install network-manager
 236 EOF
 237
 238   # allow networkmanager to manage interfaces
 239   #https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1638842
 240   touch $target/etc/NetworkManager/conf.d/10-globally-managed-devices.conf
 241   # in a default desktop install, it looks like netplan creates this file under
 242   # run/NetworkManager/conf.d in early boot.
 243
 244   # By default, dns=default is set in etiona, and dns is just broken.
 245   # Maybe with resolvconf it would work, but theres no need for that.
 246   # https://wiki.gnome.org/Projects/NetworkManager/DNS
 247   cat >$target/etc/NetworkManager/conf.d/99-iank.conf <<'EOF'
 248 [main]
 249 dns=systemd-resolved
 250 EOF
 251
 252 else
 253   cat > $target/etc/network/interfaces <<-EOF
 254 # generated by FAI
 255 auto lo eth0
 256 iface lo inet loopback
 257 iface eth0 inet dhcp
 258 iface eth0 inet6 auto
 259 EOF
 260
 261   # previously had an else condition after
 262   #elif ifclass VM || ifclass LINODE; then
 263   # iface $NIC1 inet manual
 264   # iface br0 inet dhcp
 265   #   bridge_ports $NIC1
 266   #   bridge_stp off
 267   #   bridge_maxwait 0
 268   # however, on t9, on startup, br0, became
 269   # rename1 and didn't come up. i dunno why,
 270   # but the bridge is for vms that I rarely use,
 271   # so not bothering to figure it out.
 272
 273
 274 fi
 275
 276 if ifclass LINODE; then
 277   mkdir -p $target/etc/initramfs-tools/conf.d
 278   cat >$target/etc/initramfs-tools/conf.d/mine <<EOF
 279 # dhcp in initramfs doesn't work on linode. i dunno why, whatever.
 280 # man 5 initramfs.conf
 281 # /usr/share/doc/klibc-utils/README.ipconfig.gz
 282 # /usr/share/initramfs-tools/scripts/functions
 283 IP=$linode_ip::$linode_gw:255.255.255.0::eth0:off
 284 EOF
 285
 286
 287   if [[ $HOSTNAME == li ]]; then
 288
 289     cat > $target/etc/network/interfaces <<-EOF
 290 # generated by FAI
 291 auto lo eth0
 292 iface lo inet loopback
 293 iface eth0 inet dhcp
 294 # for the standard network config, uncomment this and comment the lines after it.
 295 #iface eth0 inet6 auto
 296
 297 iface eth0 inet6 static
 298 # this is really a /128. it seems like we need to assign it for ipv6 to work.
 299 address 2600:3c00::f03c:91ff:fe6d:baf8/64
 300 gateway fe80::1
 301
 302 iface eth0 inet6 static
 303 # from a requested /64 pool
 304 address 2600:3c00:e000:280::2/64
 305 EOF
 306   fi
 307
 308 fi
 309
 310 # I prefer to stick with ifup/down for now. a. networkd is not in its
 311 # own package, so cant use in other init systems. b. it works fine.
 312 chroot $FAI_ROOT bash <<EOF
 313 systemctl disable systemd-networkd.socket systemd-networkd networkd-dispatcher systemd-networkd-wait-online
 314 systemctl mask systemd-networkd.socket systemd-networkd networkd-dispatcher systemd-networkd-wait-online
 315 EOF
 316
 317 ##### end network setup  #####