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 -riB /boot
  28 # this is also done by FABASE/10-misc by default (without B)
  29 fcopy -riB /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 $FAI/distro-install-common/end
  41
  42
  43
  44 ### begin sources install + updates
  45 # these get copied in an earlier stage by fai, but leaving it here since
  46 # I run this as a single post-fai script to update things that have changed.
  47 tmpfile1=$(mktemp)
  48 # this can fail if we need an apt update
  49 chroot $FAI_ROOT /usr/bin/apt-cache policy >$tmpfile1 ||:
  50 fcopy -riBM /etc/apt
  51 tmpfile2=$(mktemp)
  52 chroot $FAI_ROOT /usr/bin/apt-cache policy >$tmpfile2
  53 if ! diff -q $tmpfile1 $tmpfile2; then
  54   chroot $FAI_ROOT /usr/bin/apt update
  55 fi
  56 # outside of fai, this seems to regularly lead to
  57 # E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)
  58 # so add a sleep. 1 sec is probably way more than needed.
  59 sleep 1
  60 f=$FAI_ROOT/var/cache/apt/pkgcache.bin
  61 if [[ ! -r $f ]] || (( $(( $(date +%s) - $(stat -c %Y $f ) )) > 60*60*2 )); then
  62   i=0
  63   while fuser $FAI_ROOT/var/lib/dpkg/lock &>/dev/null; do
  64     sleep 1
  65     i=$(( i+1 ))
  66     if (( i > 300 )); then
  67       echo "error: timed out waiting for /var/lib/dpkg/lock" >&2
  68       exit 1
  69     fi
  70     $ROOTCMD apt-get update
  71   done
  72 fi
  73 ### end sources install + updates
  74
  75
  76 #### misc configurations
  77 chroot $FAI_ROOT bash <<'EOFOUTER'
  78 if getent group systemd-journal >/dev/null; then
  79   # makes the journal be saved to disk.
  80   mkdir -p /var/log/journal
  81   chmod 755 /var/log/journal
  82 fi
  83 debconf-set-selections <<EOF
  84 kexec-tools kexec-tools/load_kexec boolean false
  85 EOF
  86 apt-get install -y pxe-kexec
  87
  88 # this is usefull. Only thing reason I see this being disabled by default is
  89 # that a normal user can disrupt the system, eg cause a reboot.
  90 sed -i '$a kernel.sysrq=1
  91 /^kernel.sysrq=/d' /etc/sysctl.conf
  92
  93 EOFOUTER
  94
  95
  96 if [[ $FAI_ACTION != dirinstall ]] && ! ifclass NOCRYPT; then
  97   # luks options, see man systemd-cryptsetup-generator
  98   # all i know is that with luks.crypttab=no, swap still timed out on boot.
  99   # and with rd.luks.crypttab=no, it works.
 100   if ifclass LINODE; then
 101     speed=19200
 102     cmdline="rd.luks.crypttab=no net.ifnames=0 console=ttyS0,${speed}n8"
 103   else
 104     speed=115200
 105     cmdline="rd.luks.crypttab=no net.ifnames=0 console=ttyS0,${speed}n8 console=tty0"
 106     case $HOSTNAME in
 107       # per rubens suggestion to make a d16 more stable
 108       kd|kw) cmdline+=" pci=realloc=off" ;;
 109     esac
 110   fi
 111
 112   cat >$FAI_ROOT/etc/grub.d/40_custom <<EOF
 113 #!/bin/sh
 114 exec tail -n +3 \$0
 115 # This file provides an easy way to add custom menu entries.  Simply type the
 116 # menu entries you want to add after this comment.  Be careful not to change
 117 # the 'exec tail' line above.
 118
 119 # https://www.coreboot.org/Serial_console # tty
 120 # but removed unneeded stuff
 121
 122 serial --speed=$speed
 123 terminal_input --append  serial
 124 terminal_output --append serial
 125 EOF
 126
 127
 128   chroot $FAI_ROOT bash <<EOF
 129 set -eE -o pipefail
 130 # https://askubuntu.com/questions/33416/how-do-i-disable-the-boot-splash-screen-and-only-show-kernel-and-boot-text-inst
 131 # we remove quiet and splash, and all thats left is what we want
 132
 133 if grep -qF "$cmdline" /etc/default/grub; then
 134   # already set things, exit
 135   exit 0
 136 fi
 137 sed -ri 's/^ *GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="$cmdline"/' /etc/default/grub
 138 # on xenial, no grub is displayed at all. fix that.
 139 # found just by noticing this in the config file, and a
 140 # warning about it in error.log
 141 sed -i '/^ *GRUB_HIDDEN_TIMEOUT/d' /etc/default/grub
 142
 143 update-grub2
 144 EOF
 145 fi ##### end != dirinstall && != NOCRYPT
 146
 147
 148 ###### begin network setup ####
 149
 150 # use old names. the idea of them changing between boots has never
 151 # happened to me and I usually only have 1 wired or other type.
 152 # If I ever do need to care about it, I will.
 153 # Strangely this didn't work on kw, so I added kernel cmdline parameter.
 154 # https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
 155 ln -sf /dev/null $target/etc/systemd/network/99-default.link
 156
 157
 158 # bitfolk installer handles the rest
 159 case $HOSTNAME in
 160   bk|je) exit 0 ;;
 161 esac
 162
 163
 164 # use networkmanager if this host has wireless.
 165 if type -p iw &>/dev/null && [[ $(iw dev) ]]; then
 166   chroot $FAI_ROOT bash <<EOF
 167 apt-get -y install network-manager
 168 EOF
 169
 170   # allow networkmanager to manage interfaces
 171   #https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1638842
 172   touch $target/etc/NetworkManager/conf.d/10-globally-managed-devices.conf
 173   # in a default desktop install, it looks like netplan creates this file under
 174   # run/NetworkManager/conf.d in early boot.
 175
 176   # By default, dns=default is set in etiona, and dns is just broken.
 177   # Maybe with resolvconf it would work, but theres no need for that.
 178   # https://wiki.gnome.org/Projects/NetworkManager/DNS
 179   cat >$target/etc/NetworkManager/conf.d/99-iank.conf <<'EOF'
 180 [main]
 181 dns=systemd-resolved
 182 EOF
 183   if [[ $HOSTNAME == frodo ]]; then
 184     cat > $target/etc/network/interfaces <<-EOF
 185 # generated by FAI
 186 auto lo eth0
 187 iface lo inet loopback
 188 iface eth0 inet static
 189 address 10.3.0.2/16
 190 EOF
 191   fi
 192
 193 else
 194   cat > $target/etc/network/interfaces <<-EOF
 195 # generated by FAI
 196 auto lo eth0
 197 iface lo inet loopback
 198 iface eth0 inet dhcp
 199 iface eth0 inet6 auto
 200 EOF
 201
 202   # previously had an else condition after
 203   #elif ifclass VM || ifclass LINODE; then
 204   # iface $NIC1 inet manual
 205   # iface br0 inet dhcp
 206   #   bridge_ports $NIC1
 207   #   bridge_stp off
 208   #   bridge_maxwait 0
 209   # however, on t9, on startup, br0, became
 210   # rename1 and didn't come up. i dunno why,
 211   # but the bridge is for vms that I rarely use,
 212   # so not bothering to figure it out.
 213
 214
 215 fi
 216
 217 if ifclass LINODE; then
 218   mkdir -p $target/etc/initramfs-tools/conf.d
 219   cat >$target/etc/initramfs-tools/conf.d/mine <<EOF
 220 # dhcp in initramfs doesn't work on linode. i dunno why, whatever.
 221 # man 5 initramfs.conf
 222 # /usr/share/doc/klibc-utils/README.ipconfig.gz
 223 # /usr/share/initramfs-tools/scripts/functions
 224 IP=$linode_ip::$linode_gw:255.255.255.0::eth0:off
 225 EOF
 226
 227
 228   if [[ $HOSTNAME == li ]]; then
 229
 230     cat > $target/etc/network/interfaces <<-EOF
 231 # generated by FAI
 232 auto lo eth0
 233 iface lo inet loopback
 234 iface eth0 inet dhcp
 235 # for the standard network config, uncomment this and comment the lines after it.
 236 #iface eth0 inet6 auto
 237
 238 iface eth0 inet6 static
 239 # this is really a /128. it seems like we need to assign it for ipv6 to work.
 240 address 2600:3c00::f03c:91ff:fe6d:baf8/64
 241 gateway fe80::1
 242
 243 iface eth0 inet6 static
 244 # from a requested /64 pool
 245 address 2600:3c00:e000:280::2/64
 246 EOF
 247   fi
 248
 249 fi
 250
 251 # I prefer to stick with ifup/down for now. a. networkd is not in its
 252 # own package, so cant use in other init systems. b. it works fine.
 253 chroot $FAI_ROOT bash <<EOF
 254 systemctl disable systemd-networkd.socket systemd-networkd networkd-dispatcher systemd-networkd-wait-online
 255 systemctl mask systemd-networkd.socket systemd-networkd networkd-dispatcher systemd-networkd-wait-online
 256 EOF
 257
 258 ##### end network setup  #####
 259
 260
 261 if ifclass VOL_BUSTER_BOOTSTRAP; then
 262   fcopy -riM /etc/systemd/system
 263   chroot $FAI_ROOT bash <<'EOFOUTER'
 264 systemctl enable fai_check.service
 265 EOFOUTER
 266   exit 0 # avoid unnecessary stuff in bootstrap vol
 267 fi
 268
 269
 270
 271 ## misc settings
 272 chroot $FAI_ROOT bash <<'EOFOUTER'
 273 #### begin .ssh setup ###
 274 set -x
 275 set -eE -o pipefail
 276 mkdir -p /home/iank/.ssh
 277 f=/root/.ssh/authorized_keys
 278 if [[ -e $f ]]; then
 279    cp $f /home/iank/.ssh
 280 fi
 281 chown -R 1000:1000 /home/iank/.ssh
 282 chmod -R u=Xrw,og= /home/iank/.ssh
 283 rm -rf /root/.ssh
 284 # remove broken symlinks or the following cp will fail
 285 find /home/iank/.ssh -xtype l -exec rm '{}' \;
 286 cp -rL /home/iank/.ssh /root
 287 chown -R root:root /root/.ssh
 288 chmod 700 /root/.ssh
 289 # https://ticktockhouse.svbtle.com/my-obligatory-ubuntu-ssh-agent-post
 290 # systemctl --user is not available at fai time, so create the link ourselves
 291 d=/home/iank/.config/systemd/user/default.target.wants
 292 sudo -u iank mkdir -p $d
 293 sudo -u iank ln -sf /usr/lib/systemd/user/ssh-agent.service $d
 294 #### end .ssh setup ###
 295
 296 ## duplicated in ssh-emacs-setup
 297 # done here so its setup earlier for convenience
 298 line='AcceptEnv INSIDE_EMACS BRC COLUMNS'
 299 f=/etc/ssh/sshd_config
 300 grep -xFq "$line" $f || tee -a $f <<<"$line"
 301
 302
 303 # default debian groups (jessie through buster) + adm, sudo, root
 304 for g in cdrom floppy audio dip video plugdev netdev adm sudo; do
 305   if getent gropu $g >/dev/null; then
 306     usermod -aG $g iank
 307   fi
 308 done
 309
 310 if getent group systemd-journal >/dev/null; then
 311   usermod -aG systemd-journal iank
 312 fi
 313 EOFOUTER
 314
 315 rm -f $target/etc/resolv.conf
 316 ln -s ../run/systemd/resolve/stub-resolv.conf $target/etc/resolv.conf
 317 # needed for bitfolk image
 318 if [[ -e /a/bin/fai/fai-wrapper ]]; then
 319   systemctl enable systemd-resolved
 320   systemctl start systemd-resolved
 321 fi
 322
 323
 324
 325 # reading through the groups that iank is in but user2 isn't,
 326 for g in plugdev audio video cdrom; do
 327   $ROOTCMD usermod -a -G $g user2
 328 done