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 $HOSTNAME in
 107       kd)
 108         fcopy -v /usr/bin/myncq
 109
 110         cat >$target/etc/systemd/system/myncq.service <<'EOF'
 111 [Unit]
 112 Description=fix ncq errors
 113
 114 [Service]
 115 Type=oneshot
 116 ExecStart=/usr/bin/myncq
 117 TimeoutStartSec=20
 118
 119 [Install]
 120 # https://www.enricozini.org/blog/2017/debian/systemd-07-devices/
 121 WantedBy=dev-disk-by\x2did-ata\x2dSamsung_SSD_870_QVO_8TB_S5VUNG0N900656V.device
 122 EOF
 123
 124   chroot $FAI_ROOT bash <<'EOFOUTER'
 125 systemctl enable myncq.service
 126 /usr/bin/myncq no-upgrub
 127 EOFOUTER
 128
 129           ;;
 130       # per rubens suggestion to make a d16 more stable
 131       kd|kw) cmdline+=" pci=realloc=off" ;;
 132     esac
 133   fi
 134
 135   cat >$FAI_ROOT/etc/grub.d/40_custom <<EOF
 136 #!/bin/sh
 137 exec tail -n +3 \$0
 138 # This file provides an easy way to add custom menu entries.  Simply type the
 139 # menu entries you want to add after this comment.  Be careful not to change
 140 # the 'exec tail' line above.
 141
 142 # https://www.coreboot.org/Serial_console # tty
 143 # but removed unneeded stuff
 144
 145 serial --speed=$speed
 146 terminal_input --append  serial
 147 terminal_output --append serial
 148 EOF
 149
 150
 151   chroot $FAI_ROOT bash <<EOF
 152 set -eE -o pipefail
 153 # https://askubuntu.com/questions/33416/how-do-i-disable-the-boot-splash-screen-and-only-show-kernel-and-boot-text-inst
 154
 155 sed -ri 's/(^GRUB_CMDLINE_LINUX_DEFAULT=")quiet/\1/;s/^(GRUB_CMDLINE_LINUX_DEFAULT=".*) quiet([ "])/\1\2/' /etc/default/grub
 156 sed -ri 's/(^GRUB_CMDLINE_LINUX_DEFAULT=")splash/\1/;s/^(GRUB_CMDLINE_LINUX_DEFAULT=".*) splash([ "])/\1\2/' /etc/default/grub
 157
 158 for arg in $cmdline; do
 159   if ! grep "^GRUB_CMDLINE_LINUX_DEFAULT=.*[\" ]${arg//./\\.}[\" ]" /etc/default/grub; then
 160     sed -ri "s/^GRUB_CMDLINE_LINUX_DEFAULT=\"(.*)/GRUB_CMDLINE_LINUX_DEFAULT=\"$arg \1/" /etc/default/grub
 161   fi
 162 done
 163
 164 if grep -qF "$cmdline" /etc/default/grub; then
 165   # already set things, exit
 166   exit 0
 167 fi
 168 sed -ri 's/^ *GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="$cmdline"/' /etc/default/grub
 169 # on xenial, no grub is displayed at all. fix that.
 170 # found just by noticing this in the config file, and a
 171 # warning about it in error.log
 172 sed -i '/^ *GRUB_HIDDEN_TIMEOUT/d' /etc/default/grub
 173
 174 if type -P update-grub2 &>/dev/null; then
 175   update-grub2
 176 else
 177   update-grub
 178 fi
 179
 180 EOF
 181 fi ##### end != dirinstall && != NOCRYPT
 182
 183
 184 ###### begin network setup ####
 185
 186 # use old names. the idea of them changing between boots has never
 187 # happened to me and I usually only have 1 wired or other type.
 188 # If I ever do need to care about it, I will.
 189 # Strangely this didn't work on kw, so I added kernel cmdline parameter.
 190 # https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
 191 ln -sf /dev/null $target/etc/systemd/network/99-default.link
 192
 193
 194 # bitfolk installer handles the rest
 195 case $HOSTNAME in
 196   bk|je) exit 0 ;;
 197 esac
 198
 199
 200 # use networkmanager if this host has wireless.
 201 if type -p iw &>/dev/null && [[ $(iw dev) ]]; then
 202   chroot $FAI_ROOT bash <<EOF
 203 apt-get -y install network-manager
 204 EOF
 205
 206   # allow networkmanager to manage interfaces
 207   #https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1638842
 208   touch $target/etc/NetworkManager/conf.d/10-globally-managed-devices.conf
 209   # in a default desktop install, it looks like netplan creates this file under
 210   # run/NetworkManager/conf.d in early boot.
 211
 212   # By default, dns=default is set in etiona, and dns is just broken.
 213   # Maybe with resolvconf it would work, but theres no need for that.
 214   # https://wiki.gnome.org/Projects/NetworkManager/DNS
 215   cat >$target/etc/NetworkManager/conf.d/99-iank.conf <<'EOF'
 216 [main]
 217 dns=systemd-resolved
 218 EOF
 219   if [[ $HOSTNAME == frodo ]]; then
 220     cat > $target/etc/network/interfaces <<-EOF
 221 # generated by FAI
 222 auto lo eth0
 223 iface lo inet loopback
 224 iface eth0 inet static
 225 address 10.3.0.2/16
 226 EOF
 227   fi
 228
 229 else
 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 iface eth0 inet6 auto
 236 EOF
 237
 238   # previously had an else condition after
 239   #elif ifclass VM || ifclass LINODE; then
 240   # iface $NIC1 inet manual
 241   # iface br0 inet dhcp
 242   #   bridge_ports $NIC1
 243   #   bridge_stp off
 244   #   bridge_maxwait 0
 245   # however, on t9, on startup, br0, became
 246   # rename1 and didn't come up. i dunno why,
 247   # but the bridge is for vms that I rarely use,
 248   # so not bothering to figure it out.
 249
 250
 251 fi
 252
 253 if ifclass LINODE; then
 254   mkdir -p $target/etc/initramfs-tools/conf.d
 255   cat >$target/etc/initramfs-tools/conf.d/mine <<EOF
 256 # dhcp in initramfs doesn't work on linode. i dunno why, whatever.
 257 # man 5 initramfs.conf
 258 # /usr/share/doc/klibc-utils/README.ipconfig.gz
 259 # /usr/share/initramfs-tools/scripts/functions
 260 IP=$linode_ip::$linode_gw:255.255.255.0::eth0:off
 261 EOF
 262
 263
 264   if [[ $HOSTNAME == li ]]; then
 265
 266     cat > $target/etc/network/interfaces <<-EOF
 267 # generated by FAI
 268 auto lo eth0
 269 iface lo inet loopback
 270 iface eth0 inet dhcp
 271 # for the standard network config, uncomment this and comment the lines after it.
 272 #iface eth0 inet6 auto
 273
 274 iface eth0 inet6 static
 275 # this is really a /128. it seems like we need to assign it for ipv6 to work.
 276 address 2600:3c00::f03c:91ff:fe6d:baf8/64
 277 gateway fe80::1
 278
 279 iface eth0 inet6 static
 280 # from a requested /64 pool
 281 address 2600:3c00:e000:280::2/64
 282 EOF
 283   fi
 284 fi
 285
 286 # I prefer to stick with ifup/down for now. a. networkd is not in its
 287 # own package, so cant use in other init systems. b. it works fine.
 288 chroot $FAI_ROOT bash <<EOF
 289 systemctl disable systemd-networkd.socket systemd-networkd networkd-dispatcher systemd-networkd-wait-online
 290 systemctl mask systemd-networkd.socket systemd-networkd networkd-dispatcher systemd-networkd-wait-online
 291 EOF
 292
 293 ##### end network setup  #####
 294
 295
 296 if ifclass VOL_BUSTER_BOOTSTRAP; then
 297   fcopy /etc/systemd/system/faicheck.service
 298   chroot $FAI_ROOT bash <<'EOFOUTER'
 299 systemctl enable faicheck.service
 300 EOFOUTER
 301   exit 0 # avoid unnecessary stuff in bootstrap vol
 302 fi
 303
 304
 305 ## misc settings
 306 chroot $FAI_ROOT bash <<'EOFOUTER'
 307 #### begin .ssh setup ###
 308 set -x
 309 set -eE -o pipefail
 310 mkdir -p /home/iank/.ssh
 311 f=/root/.ssh/authorized_keys
 312 if [[ -e $f ]]; then
 313    cp $f /home/iank/.ssh
 314 fi
 315 chown -R 1000:1000 /home/iank/.ssh
 316 chmod -R u=Xrw,og= /home/iank/.ssh
 317 rm -rf /root/.ssh
 318 # remove broken symlinks or the following cp will fail
 319 find /home/iank/.ssh -xtype l -exec rm '{}' \;
 320 cp -rL /home/iank/.ssh /root
 321 chown -R root:root /root/.ssh
 322 chmod 700 /root/.ssh
 323 # https://ticktockhouse.svbtle.com/my-obligatory-ubuntu-ssh-agent-post
 324 # systemctl --user is not available at fai time, so create the link ourselves
 325 d=/home/iank/.config/systemd/user/default.target.wants
 326 sudo -u iank mkdir -p $d
 327 sudo -u iank ln -sf /usr/lib/systemd/user/ssh-agent.service $d
 328 #### end .ssh setup ###
 329
 330 ## duplicated in ssh-emacs-setup
 331 # done here so its setup earlier for convenience
 332 line='AcceptEnv INSIDE_EMACS BRC COLUMNS'
 333 f=/etc/ssh/sshd_config
 334 grep -xFq "$line" $f || tee -a $f <<<"$line"
 335
 336
 337 # default debian groups (jessie through buster) + adm, sudo, root
 338 for g in cdrom floppy audio dip video plugdev netdev adm sudo; do
 339   if getent gropu $g >/dev/null; then
 340     usermod -aG $g iank
 341   fi
 342 done
 343
 344 if getent group systemd-journal >/dev/null; then
 345   usermod -aG systemd-journal iank
 346 fi
 347 EOFOUTER
 348
 349 rm -f $target/etc/resolv.conf
 350 ln -s ../run/systemd/resolve/stub-resolv.conf $target/etc/resolv.conf
 351 # needed for bitfolk image
 352 if [[ -e /a/bin/fai/fai-wrapper ]]; then
 353   systemctl enable systemd-resolved
 354   systemctl start systemd-resolved
 355 fi
 356
 357
 358
 359 # reading through the groups that iank is in but user2 isn't,
 360 for g in plugdev audio video cdrom; do
 361   $ROOTCMD usermod -a -G $g user2
 362 done