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