unconfigured.sh

   1 #!/bin/bash
   2
   3 trap "err_reboot" ERR
   4
   5 # NOTE: we nowadays get exec'd by the initrd's PID 1, so we're the new PID 1
   6
   7 parse_cmdline() {
   8     proxdebug=0
   9     # shellcheck disable=SC2013 # per word splitting is wanted here
  10     for par in $(cat /proc/cmdline); do
  11         case $par in
  12             proxdebug)
  13             proxdebug=1
  14             ;;
  15         esac
  16     done;
  17 }
  18
  19 debugsh() {
  20     /bin/bash
  21 }
  22
  23 eject_and_reboot() {
  24     iso_dev=$(awk '/ iso9660 / {print $1}' /proc/mounts)
  25
  26     for try in 5 4 3 2 1; do
  27         echo "unmounting all"
  28         if umount -a; then
  29             break
  30         fi
  31         if test -n $try; then
  32             echo "unmount failed -trying again in 5 seconds"
  33             sleep 5
  34         fi
  35     done
  36
  37     if [ -n "$iso_dev" ]; then
  38         eject "$iso_dev"
  39     fi
  40
  41     echo "rebooting - please remove the ISO boot media"
  42     sleep 3
  43     echo b > /proc/sysrq-trigger
  44     sleep 100
  45 }
  46
  47 real_reboot() {
  48     trap - ERR
  49
  50     /etc/init.d/networking stop
  51
  52     # stop udev (release file handles)
  53     /etc/init.d/udev stop
  54
  55     echo -n "Deactivating swap..."
  56     swap=$(awk '/^\/dev\// { print $1 }' /proc/swaps);
  57     if [ -n "$swap" ]; then
  58        swapoff "$swap"
  59     fi
  60     echo "done."
  61
  62     umount -l -n /target >/dev/null 2>&1
  63     umount -l -n /dev/pts
  64     umount -l -n /dev/shm
  65     umount -l -n /dev
  66     umount -l -n /run
  67     [ -d /sys/firmware/efi/efivars ] && umount -l -n /sys/firmware/efi/efivars
  68
  69     # do not unmount proc and sys for now, at least /proc is still required to trigger the actual
  70     # reboot, and both are virtual FS only anyway
  71
  72     echo "Terminate all remaining processes"
  73     kill -s TERM -1 # TERMinate all but current init (our self) PID 1
  74     sleep 2
  75     echo "Kill any remaining processes"
  76     kill -s KILL -1 # KILL all but current init (our self) PID 1
  77     sleep 0.5
  78
  79     eject_and_reboot
  80
  81     exit 0 # shouldn't be reached, kernel will panic in that case
  82 }
  83
  84 err_reboot() {
  85     printf "\nInstallation aborted - unable to continue (type exit or CTRL-D to reboot)\n"
  86     debugsh || true
  87     real_reboot
  88 }
  89
  90 # NOTE: dbus must be launched before this, else iwd cannot work
  91 # FIXME: very crude, still needs to actually copy over any iwd config to target
  92 handle_wireless() {
  93     wireless_found=
  94     for iface in /sys/class/net/*; do
  95         if [ -d "$iface/wireless" ]; then
  96             wireless_found=1
  97         fi
  98     done
  99     if [ -z $wireless_found ]; then
 100         return;
 101     fi
 102
 103     if [ -x /usr/libexec/iwd ]; then
 104         echo "wireless device(s) found, starting iwd; use 'iwctl' to manage connections (experimental)"
 105         /usr/libexec/iwd &
 106     else
 107         echo "wireless device found but iwd not available, ignoring"
 108     fi
 109 }
 110
 111 PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin
 112
 113 echo "Starting Proxmox installation"
 114
 115 # ensure udev doesn't ignores our request; FIXME: not required anymore, as we use switch_root now
 116 export SYSTEMD_IGNORE_CHROOT=1
 117
 118 mount -n -t proc proc /proc
 119 mount -n -t sysfs sysfs /sys
 120 if [ -d /sys/firmware/efi ]; then
 121     echo "EFI boot mode detected, mounting efivars filesystem"
 122     mount -n -t efivarfs efivarfs /sys/firmware/efi/efivars
 123 fi
 124 mount -n -t tmpfs tmpfs /run
 125
 126 parse_cmdline
 127
 128 # always load most common input drivers
 129 modprobe -q psmouse || true
 130 modprobe -q sermouse ||  true
 131 modprobe -q usbhid ||  true
 132
 133 # load device mapper - used by lilo
 134 modprobe -q dm_mod || true
 135
 136 echo "Installing additional hardware drivers"
 137 export RUNLEVEL=S
 138 export PREVLEVEL=N
 139 /etc/init.d/udev start
 140
 141 mkdir -p /dev/shm
 142 mount -t tmpfs tmpfs /dev/shm
 143
 144 # allow pseudo terminals for debuggin in X
 145 mkdir -p /dev/pts
 146 mount -vt devpts devpts /dev/pts -o gid=5,mode=620
 147
 148 # shellcheck disable=SC2207
 149 console_dim=($(IFS=' ' stty size)) # [height, width]
 150 DPI=96
 151 if (("${console_dim[0]}" > 100)) && (("${console_dim[1]}" > 400)); then
 152     # heuristic only, high resolution can still mean normal/low DPI if it's a really big screen
 153     # FIXME: use `edid-decode` as it can contain physical dimensions to calculate actual dpi?
 154     echo "detected huge console, setting bigger font/dpi"
 155     DPI=192
 156     export GDK_SCALE=2
 157     setfont /usr/share/consolefonts/Uni2-Terminus32x16.psf.gz
 158 fi
 159
 160 # set the hostname
 161 hostname proxmox
 162
 163 if command -v dbus-daemon; then
 164     echo "starting D-Bus daemon"
 165     mkdir /run/dbus
 166     dbus-daemon --system --syslog-only
 167
 168     if [ $proxdebug -ne 0 ]; then # FIXME: better intergration, e.g., use iwgtk?
 169         handle_wireless # no-op if not wireless dev is found
 170     fi
 171 fi
 172
 173 # we use a trimmed down debootstrap so make busybox tools available to compensate that
 174 busybox --install -s || true
 175
 176 if [ $proxdebug -ne 0 ]; then
 177     /sbin/agetty -o '-p -- \\u' --noclear tty9 &
 178     printf "\nDropping in debug shell before starting installation\n"
 179     echo "type exit or CTRL-D to continue and start the installation wizard"
 180     debugsh || true
 181 fi
 182
 183 # try to get ip config with dhcp
 184 echo -n "Attempting to get DHCP leases... "
 185 dhclient -v
 186 echo "done"
 187
 188 echo -n "Starting chrony for opportunistic time-sync... "
 189 chronyd || echo "starting chrony failed ($?)"
 190
 191 echo "Starting a root shell on tty3."
 192 setsid /sbin/agetty -a root --noclear tty3 &
 193
 194 xinit -- -dpi "$DPI" >/dev/tty2 2>&1
 195
 196 # just to be sure everything is on disk
 197 sync
 198
 199 if [ $proxdebug -ne 0 ]; then
 200     printf "\nDebug shell after installation exited (type exit or CTRL-D to reboot)\n"
 201     debugsh || true
 202 fi
 203
 204 echo "Installation done, rebooting... "
 205
 206 killall5 -15
 207
 208 real_reboot
 209
 210 # never reached
 211 exit 0