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 ISO"
  28         if umount -v -a --types iso9660; 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 "$iso_dev" || true # cannot really work currently, don't care
  39     fi
  40
  41     umount -l -n /dev
  42
  43     echo "rebooting - please remove the ISO boot media"
  44     sleep 3
  45     reboot -f
  46     sleep 5
  47     echo "trigger reset system request"
  48     # we do not expect the reboot above to fail, so rather to avoid kpanic when pid 1 exits
  49     echo b > /proc/sysrq-trigger
  50     sleep 100
  51 }
  52
  53 real_reboot() {
  54     trap - ERR
  55
  56     if [[ -x /etc/init.d/networking ]]; then
  57         /etc/init.d/networking stop
  58     fi
  59
  60     # stop udev (release file handles)
  61     /etc/init.d/udev stop
  62
  63     swap=$(awk '/^\/dev\// { print $1 }' /proc/swaps);
  64     if [ -n "$swap" ]; then
  65         echo -n "Deactivating swap..."
  66         swapoff "$swap"
  67         echo "done."
  68     fi
  69
  70     # just to be sure
  71     sync
  72
  73     umount -l -n /target >/dev/null 2>&1
  74     umount -l -n /dev/pts
  75     umount -l -n /dev/shm
  76     umount -l -n /run
  77     [ -d /sys/firmware/efi/efivars ] && umount -l -n /sys/firmware/efi/efivars
  78
  79     # do not unmount proc and sys for now, at least /proc is still required to trigger the actual
  80     # reboot, and both are virtual FS only anyway
  81
  82     echo "Terminate all remaining processes"
  83     kill -s TERM -1 # TERMinate all but current init (our self) PID 1
  84     sleep 2
  85     echo "Kill any remaining processes"
  86     kill -s KILL -1 # KILL all but current init (our self) PID 1
  87     sleep 0.5
  88
  89     eject_and_reboot
  90
  91     exit 0 # shouldn't be reached, kernel will panic in that case
  92 }
  93
  94 err_reboot() {
  95     printf "\nInstallation aborted - unable to continue (type exit or CTRL-D to reboot)\n"
  96     debugsh || true
  97     real_reboot
  98 }
  99
 100 # NOTE: dbus must be launched before this, else iwd cannot work
 101 # FIXME: very crude, still needs to actually copy over any iwd config to target
 102 handle_wireless() {
 103     wireless_found=
 104     for iface in /sys/class/net/*; do
 105         if [ -d "$iface/wireless" ]; then
 106             wireless_found=1
 107         fi
 108     done
 109     if [ -z $wireless_found ]; then
 110         return;
 111     fi
 112
 113     if [ -x /usr/libexec/iwd ]; then
 114         echo "wireless device(s) found, starting iwd; use 'iwctl' to manage connections (experimental)"
 115         /usr/libexec/iwd &
 116     else
 117         echo "wireless device found but iwd not available, ignoring"
 118     fi
 119 }
 120
 121 PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin
 122
 123 echo "Starting Proxmox installation"
 124
 125 # ensure udev doesn't ignores our request; FIXME: not required anymore, as we use switch_root now
 126 export SYSTEMD_IGNORE_CHROOT=1
 127
 128 mount -n -t proc proc /proc
 129 mount -n -t sysfs sysfs /sys
 130 if [ -d /sys/firmware/efi ]; then
 131     echo "EFI boot mode detected, mounting efivars filesystem"
 132     mount -n -t efivarfs efivarfs /sys/firmware/efi/efivars
 133 fi
 134 mount -n -t tmpfs tmpfs /run
 135
 136 parse_cmdline
 137
 138 # always load most common input drivers
 139 modprobe -q psmouse || true
 140 modprobe -q sermouse ||  true
 141 modprobe -q usbhid ||  true
 142
 143 # load device mapper - used by lilo
 144 modprobe -q dm_mod || true
 145
 146 echo "Installing additional hardware drivers"
 147 export RUNLEVEL=S
 148 export PREVLEVEL=N
 149 /etc/init.d/udev start
 150
 151 mkdir -p /dev/shm
 152 mount -t tmpfs tmpfs /dev/shm
 153
 154 # allow pseudo terminals for debuggin in X
 155 mkdir -p /dev/pts
 156 mount -vt devpts devpts /dev/pts -o gid=5,mode=620
 157
 158 # shellcheck disable=SC2207
 159 console_dim=($(IFS=' ' stty size)) # [height, width]
 160 DPI=96
 161 if (("${console_dim[0]}" > 100)) && (("${console_dim[1]}" > 400)); then
 162     # heuristic only, high resolution can still mean normal/low DPI if it's a really big screen
 163     # FIXME: use `edid-decode` as it can contain physical dimensions to calculate actual dpi?
 164     echo "detected huge console, setting bigger font/dpi"
 165     DPI=192
 166     export GDK_SCALE=2
 167     setfont /usr/share/consolefonts/Uni2-Terminus32x16.psf.gz
 168 fi
 169
 170 # set the hostname
 171 hostname proxmox
 172
 173 if command -v dbus-daemon; then
 174     echo "starting D-Bus daemon"
 175     mkdir /run/dbus
 176     dbus-daemon --system --syslog-only
 177
 178     if [ $proxdebug -ne 0 ]; then # FIXME: better intergration, e.g., use iwgtk?
 179         handle_wireless # no-op if not wireless dev is found
 180     fi
 181 fi
 182
 183 # we use a trimmed down debootstrap so make busybox tools available to compensate that
 184 busybox --install -s || true
 185
 186 if [ $proxdebug -ne 0 ]; then
 187     /sbin/agetty -o '-p -- \\u' --noclear tty9 &
 188     printf "\nDropping in debug shell before starting installation\n"
 189     echo "type exit or CTRL-D to continue and start the installation wizard"
 190     debugsh || true
 191 fi
 192
 193 # try to get ip config with dhcp
 194 echo -n "Attempting to get DHCP leases... "
 195 dhclient -v
 196 echo "done"
 197
 198 echo "Starting chrony for opportunistic time-sync... "
 199 chronyd || echo "starting chrony failed ($?)"
 200
 201 echo "Starting a root shell on tty3."
 202 setsid /sbin/agetty -a root --noclear tty3 &
 203
 204 echo "Starting the installer GUI - see tty2 (CTRL+ALT+F2) for any errors..."
 205 xinit -- -dpi "$DPI" >/dev/tty2 2>&1
 206
 207 # just to be sure everything is on disk
 208 sync
 209
 210 if [ $proxdebug -ne 0 ]; then
 211     printf "\nDebug shell after installation exited (type exit or CTRL-D to reboot)\n"
 212     debugsh || true
 213 fi
 214
 215 echo "Installation done, rebooting... "
 216
 217 killall5 -15
 218
 219 real_reboot
 220
 221 # never reached
 222 exit 0