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 chroot $FAI_ROOT bash <<'EOFOUTER'
  23 set -eE -o pipefail
  24 if getent group systemd-journal >/dev/null; then
  25   # makes the journal be saved to disk.
  26   mkdir -p /var/log/journal
  27   chmod 755 /var/log/journal
  28 fi
  29 debconf-set-selections <<EOF
  30 kexec-tools kexec-tools/load_kexec boolean false
  31 EOF
  32 apt-get install -y pxe-kexec
  33 EOFOUTER
  34
  35 # -r = recursive
  36 # -i = ignore non-matching class warnings, always exit 0
  37 # -B = no backup files
  38 fcopy -riBM /boot
  39 # this is also done by FABASE/10-misc by default.
  40 fcopy -riBM /root
  41
  42
  43 src=$FAI/distro-install-common/shadow
  44 dst=/q/root/shadow
  45 if [[ ! -e $dst && -e $src ]]; then
  46   # outside of fai context, we skip this
  47   mkdir -p $dst
  48   mount -o bind $src $dst
  49 fi
  50
  51 $FAI/distro-install-common/end
  52 if ifclass VOL_STRETCH_BOOTSTRAP; then
  53   fcopy -riM /etc/systemd/system
  54   chroot $FAI_ROOT bash <<'EOFOUTER'
  55 systemctl enable fai_check.service
  56 EOFOUTER
  57   exit 0 # avoid unnecessary stuff in bootstrap vol
  58 fi
  59
  60
  61 # these get copied in an earlier stage by fai, but leaving it here since
  62 # I run this as a single post-fai script to update things that have changed.
  63 fcopy -riBM /etc/apt
  64 # outside of fai, this seems to regularly lead to
  65 # E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)
  66 # so add a sleep. 1 sec is probably way more than needed.
  67 sleep 1
  68 f=$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 chroot $FAI_ROOT bash <<'EOF'
  84 #### begin .ssh setup ###
  85 set -x
  86 set -eE -o pipefail
  87 mkdir -p /home/iank/.ssh
  88 f=/root/.ssh/authorized_keys
  89 if [[ -e $f ]]; then
  90    cp $f /home/iank/.ssh
  91 fi
  92 chown -R 1000:1000 /home/iank/.ssh
  93 chmod -R u=Xrw,og= /home/iank/.ssh
  94 rm -rf /root/.ssh
  95 # remove broken symlinks or the following cp will fail
  96 find /home/iank/.ssh -xtype l -exec rm '{}' \;
  97 cp -rL /home/iank/.ssh /root
  98 chown -R root:root /root/.ssh
  99 chmod 700 /root/.ssh
 100 # https://ticktockhouse.svbtle.com/my-obligatory-ubuntu-ssh-agent-post
 101 # systemctl --user is not available at fai time, so create the link ourselves
 102 d=/home/iank/.config/systemd/user/default.target.wants
 103 sudo -u iank mkdir -p $d
 104 sudo -u iank ln -sf /usr/lib/systemd/user/ssh-agent.service $d
 105 #### end .ssh setup ###
 106
 107 ### duplicated in ssh-emacs-setup
 108 # done here so its setup earlier for convenience
 109 line='AcceptEnv INSIDE_EMACS BRC COLUMNS'
 110 f=/etc/ssh/sshd_config
 111 grep -xFq "$line" $f || tee -a $f <<<"$line"
 112
 113
 114
 115
 116 # default jessie groups + kvm, systemd-journal, adm
 117 for g in adm cdrom floppy sudo audio dip video plugdev netdev; do
 118   if getent gropu $g >/dev/null; then
 119     usermod -aG $g iank
 120   fi
 121 done
 122
 123 if getent group systemd-journal >/dev/null; then
 124   usermod -aG systemd-journal iank
 125 fi
 126
 127
 128 # this is usefull. Only thing reason I see this being disabled by default is
 129 # that a normal user can disrupt the system, eg cause a reboot.
 130 sed -i '$a kernel.sysrq=1
 131 /^kernel.sysrq=/d' /etc/sysctl.conf
 132 EOF
 133
 134
 135 if [[ $FAI_ACTION != dirinstall ]]; then
 136
 137
 138   # luks options, see man systemd-cryptsetup-generator
 139   # all i know is that with luks.crypttab=no, swap still timed out on boot.
 140   # and with rd.luks.crypttab=no, it works.
 141   if ifclass LINODE; then
 142     speed=19200
 143     cmdline="rd.luks.crypttab=no net.ifnames=0 console=ttyS0,${speed}n8"
 144   else
 145     speed=115200
 146    cmdline="rd.luks.crypttab=no net.ifnames=0 console=ttyS0,${speed}n8 console=tty0"
 147   fi
 148
 149   cat >$FAI_ROOT/etc/grub.d/40_custom <<EOF
 150 #!/bin/sh
 151 exec tail -n +3 \$0
 152 # This file provides an easy way to add custom menu entries.  Simply type the
 153 # menu entries you want to add after this comment.  Be careful not to change
 154 # the 'exec tail' line above.
 155
 156 # https://www.coreboot.org/Serial_console # tty
 157 # but removed unneeded stuff
 158
 159 serial --speed=$speed
 160 terminal_input --append  serial
 161 terminal_output --append serial
 162 EOF
 163
 164
 165   chroot $FAI_ROOT bash <<EOF
 166 set -eE -o pipefail
 167 # https://askubuntu.com/questions/33416/how-do-i-disable-the-boot-splash-screen-and-only-show-kernel-and-boot-text-inst
 168 # we remove quiet and splash, and all thats left is what we want
 169
 170 if grep -qF "$cmdline" /etc/default/grub; then
 171   # already set things, exit
 172   exit 0
 173 fi
 174 sed -ri 's/^ *GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="$cmdline"/' /etc/default/grub
 175 # on xenial, no grub is displayed at all. fix that.
 176 # found just by noticing this in the config file, and a
 177 # warning about it in error.log
 178 sed -i '/^ *GRUB_HIDDEN_TIMEOUT/d' /etc/default/grub
 179
 180 update-grub2
 181 EOF
 182 fi # end != dirinstall
 183
 184
 185 # reading through the groups that iank is in but user2 isn't,
 186 for g in plugdev audio video cdrom; do
 187   $ROOTCMD usermod -a -G $g user2
 188 done
 189
 190
 191 ## begin network setup
 192
 193 # use old names. the idea of them changing between boots has never
 194 # happened to me and I usually only have 1 wired or other type.
 195 # If I ever do need to care about it, I will.
 196 # Strangely this didn't work on kw, so I added kernel cmdline parameter.
 197 # https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
 198 ln -sf /dev/null $target/etc/systemd/network/99-default.link
 199
 200 # use networkmanager if this host has wireless.
 201 if [[ $(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
 220 else
 221   cat > $target/etc/network/interfaces <<-EOF
 222 # generated by FAI
 223 auto lo eth0
 224 iface lo inet loopback
 225 iface eth0 inet dhcp
 226 iface eth0 inet6 auto
 227 EOF
 228
 229 # previously had an else condition after
 230 #elif ifclass VM || ifclass LINODE; then
 231 # iface br0 inet dhcp
 232 #   bridge_ports $NIC1
 233 #   bridge_stp off
 234 #   bridge_maxwait 0
 235 # however, on t9, on startup, br0, became
 236 # rename1 and didn't come up. i dunno why,
 237 # but the bridge is for vms that I rarely use,
 238 # so not bothering to figure it out.
 239
 240
 241 fi
 242
 243 if ifclass LINODE; then
 244   mkdir -p $target/etc/initramfs-tools/conf.d
 245   cat >$target/etc/initramfs-tools/conf.d/mine <<EOF
 246 # dhcp in initramfs doesn't work on linode. i dunno why, whatever.
 247 # man 5 initramfs.conf
 248 # /usr/share/doc/klibc-utils/README.ipconfig.gz
 249 # /usr/share/initramfs-tools/scripts/functions
 250 IP=$linode_ip::$linode_gw:255.255.255.0::eth0:off
 251 EOF
 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
 262 ## end network setup