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 $HOSTNAME in
 107       # https://wiki.archlinux.org/index.php/Solid_state_drive#Resolving_NCQ_errors
 108       # evo-870 doesnt get along well with d16 with etiona
 109       kd) cmdline+=" libata.force=5.00:noncq" ;;
 110       # per rubens suggestion to make a d16 more stable
 111       kd|kw) cmdline+=" pci=realloc=off" ;;
 112     esac
 113   fi
 114
 115   cat >$FAI_ROOT/etc/grub.d/40_custom <<EOF
 116 #!/bin/sh
 117 exec tail -n +3 \$0
 118 # This file provides an easy way to add custom menu entries.  Simply type the
 119 # menu entries you want to add after this comment.  Be careful not to change
 120 # the 'exec tail' line above.
 121
 122 # https://www.coreboot.org/Serial_console # tty
 123 # but removed unneeded stuff
 124
 125 serial --speed=$speed
 126 terminal_input --append  serial
 127 terminal_output --append serial
 128 EOF
 129
 130
 131   chroot $FAI_ROOT bash <<EOF
 132 set -eE -o pipefail
 133 # https://askubuntu.com/questions/33416/how-do-i-disable-the-boot-splash-screen-and-only-show-kernel-and-boot-text-inst
 134 # we remove quiet and splash, and all thats left is what we want
 135
 136 if grep -qF "$cmdline" /etc/default/grub; then
 137   # already set things, exit
 138   exit 0
 139 fi
 140 sed -ri 's/^ *GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="$cmdline"/' /etc/default/grub
 141 # on xenial, no grub is displayed at all. fix that.
 142 # found just by noticing this in the config file, and a
 143 # warning about it in error.log
 144 sed -i '/^ *GRUB_HIDDEN_TIMEOUT/d' /etc/default/grub
 145
 146 update-grub2
 147 EOF
 148 fi ##### end != dirinstall && != NOCRYPT
 149
 150
 151 ###### begin network setup ####
 152
 153 # use old names. the idea of them changing between boots has never
 154 # happened to me and I usually only have 1 wired or other type.
 155 # If I ever do need to care about it, I will.
 156 # Strangely this didn't work on kw, so I added kernel cmdline parameter.
 157 # https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
 158 ln -sf /dev/null $target/etc/systemd/network/99-default.link
 159
 160
 161 # bitfolk installer handles the rest
 162 case $HOSTNAME in
 163   bk|je) exit 0 ;;
 164 esac
 165
 166
 167 # use networkmanager if this host has wireless.
 168 if type -p iw &>/dev/null && [[ $(iw dev) ]]; then
 169   chroot $FAI_ROOT bash <<EOF
 170 apt-get -y install network-manager
 171 EOF
 172
 173   # allow networkmanager to manage interfaces
 174   #https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1638842
 175   touch $target/etc/NetworkManager/conf.d/10-globally-managed-devices.conf
 176   # in a default desktop install, it looks like netplan creates this file under
 177   # run/NetworkManager/conf.d in early boot.
 178
 179   # By default, dns=default is set in etiona, and dns is just broken.
 180   # Maybe with resolvconf it would work, but theres no need for that.
 181   # https://wiki.gnome.org/Projects/NetworkManager/DNS
 182   cat >$target/etc/NetworkManager/conf.d/99-iank.conf <<'EOF'
 183 [main]
 184 dns=systemd-resolved
 185 EOF
 186   if [[ $HOSTNAME == frodo ]]; then
 187     cat > $target/etc/network/interfaces <<-EOF
 188 # generated by FAI
 189 auto lo eth0
 190 iface lo inet loopback
 191 iface eth0 inet static
 192 address 10.3.0.2/16
 193 EOF
 194   fi
 195
 196 else
 197   cat > $target/etc/network/interfaces <<-EOF
 198 # generated by FAI
 199 auto lo eth0
 200 iface lo inet loopback
 201 iface eth0 inet dhcp
 202 iface eth0 inet6 auto
 203 EOF
 204
 205   # previously had an else condition after
 206   #elif ifclass VM || ifclass LINODE; then
 207   # iface $NIC1 inet manual
 208   # iface br0 inet dhcp
 209   #   bridge_ports $NIC1
 210   #   bridge_stp off
 211   #   bridge_maxwait 0
 212   # however, on t9, on startup, br0, became
 213   # rename1 and didn't come up. i dunno why,
 214   # but the bridge is for vms that I rarely use,
 215   # so not bothering to figure it out.
 216
 217
 218 fi
 219
 220 if ifclass LINODE; then
 221   mkdir -p $target/etc/initramfs-tools/conf.d
 222   cat >$target/etc/initramfs-tools/conf.d/mine <<EOF
 223 # dhcp in initramfs doesn't work on linode. i dunno why, whatever.
 224 # man 5 initramfs.conf
 225 # /usr/share/doc/klibc-utils/README.ipconfig.gz
 226 # /usr/share/initramfs-tools/scripts/functions
 227 IP=$linode_ip::$linode_gw:255.255.255.0::eth0:off
 228 EOF
 229
 230
 231   if [[ $HOSTNAME == li ]]; then
 232
 233     cat > $target/etc/network/interfaces <<-EOF
 234 # generated by FAI
 235 auto lo eth0
 236 iface lo inet loopback
 237 iface eth0 inet dhcp
 238 # for the standard network config, uncomment this and comment the lines after it.
 239 #iface eth0 inet6 auto
 240
 241 iface eth0 inet6 static
 242 # this is really a /128. it seems like we need to assign it for ipv6 to work.
 243 address 2600:3c00::f03c:91ff:fe6d:baf8/64
 244 gateway fe80::1
 245
 246 iface eth0 inet6 static
 247 # from a requested /64 pool
 248 address 2600:3c00:e000:280::2/64
 249 EOF
 250   fi
 251
 252 fi
 253
 254 # I prefer to stick with ifup/down for now. a. networkd is not in its
 255 # own package, so cant use in other init systems. b. it works fine.
 256 chroot $FAI_ROOT bash <<EOF
 257 systemctl disable systemd-networkd.socket systemd-networkd networkd-dispatcher systemd-networkd-wait-online
 258 systemctl mask systemd-networkd.socket systemd-networkd networkd-dispatcher systemd-networkd-wait-online
 259 EOF
 260
 261 ##### end network setup  #####
 262
 263
 264 if ifclass VOL_BUSTER_BOOTSTRAP; then
 265   fcopy -riM /etc/systemd/system
 266   chroot $FAI_ROOT bash <<'EOFOUTER'
 267 systemctl enable fai_check.service
 268 EOFOUTER
 269   exit 0 # avoid unnecessary stuff in bootstrap vol
 270 fi
 271
 272
 273
 274 ## misc settings
 275 chroot $FAI_ROOT bash <<'EOFOUTER'
 276 #### begin .ssh setup ###
 277 set -x
 278 set -eE -o pipefail
 279 mkdir -p /home/iank/.ssh
 280 f=/root/.ssh/authorized_keys
 281 if [[ -e $f ]]; then
 282    cp $f /home/iank/.ssh
 283 fi
 284 chown -R 1000:1000 /home/iank/.ssh
 285 chmod -R u=Xrw,og= /home/iank/.ssh
 286 rm -rf /root/.ssh
 287 # remove broken symlinks or the following cp will fail
 288 find /home/iank/.ssh -xtype l -exec rm '{}' \;
 289 cp -rL /home/iank/.ssh /root
 290 chown -R root:root /root/.ssh
 291 chmod 700 /root/.ssh
 292 # https://ticktockhouse.svbtle.com/my-obligatory-ubuntu-ssh-agent-post
 293 # systemctl --user is not available at fai time, so create the link ourselves
 294 d=/home/iank/.config/systemd/user/default.target.wants
 295 sudo -u iank mkdir -p $d
 296 sudo -u iank ln -sf /usr/lib/systemd/user/ssh-agent.service $d
 297 #### end .ssh setup ###
 298
 299 ## duplicated in ssh-emacs-setup
 300 # done here so its setup earlier for convenience
 301 line='AcceptEnv INSIDE_EMACS BRC COLUMNS'
 302 f=/etc/ssh/sshd_config
 303 grep -xFq "$line" $f || tee -a $f <<<"$line"
 304
 305
 306 # default debian groups (jessie through buster) + adm, sudo, root
 307 for g in cdrom floppy audio dip video plugdev netdev adm sudo; do
 308   if getent gropu $g >/dev/null; then
 309     usermod -aG $g iank
 310   fi
 311 done
 312
 313 if getent group systemd-journal >/dev/null; then
 314   usermod -aG systemd-journal iank
 315 fi
 316 EOFOUTER
 317
 318 rm -f $target/etc/resolv.conf
 319 ln -s ../run/systemd/resolve/stub-resolv.conf $target/etc/resolv.conf
 320 # needed for bitfolk image
 321 if [[ -e /a/bin/fai/fai-wrapper ]]; then
 322   systemctl enable systemd-resolved
 323   systemctl start systemd-resolved
 324 fi
 325
 326
 327
 328 # reading through the groups that iank is in but user2 isn't,
 329 for g in plugdev audio video cdrom; do
 330   $ROOTCMD usermod -a -G $g user2
 331 done