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     proxtui=0
  10     # shellcheck disable=SC2013 # per word splitting is wanted here
  11     for par in $(cat /proc/cmdline); do
  12         case $par in
  13             proxdebug)
  14                 proxdebug=1
  15             ;;
  16             proxtui)
  17                 proxtui=1
  18             ;;
  19         esac
  20     done;
  21 }
  22
  23 debugsh() {
  24     /bin/bash
  25 }
  26
  27 eject_and_reboot() {
  28     iso_dev=$(awk '/ iso9660 / {print $1}' /proc/mounts)
  29
  30     for try in 5 4 3 2 1; do
  31         echo "unmounting ISO"
  32         if umount -v -a --types iso9660; then
  33             break
  34         fi
  35         if test -n $try; then
  36             echo "unmount failed - trying again in 5 seconds"
  37             sleep 5
  38         fi
  39     done
  40
  41     if [ -n "$iso_dev" ]; then
  42         eject "$iso_dev" || true # cannot really work currently, don't care
  43     fi
  44
  45     umount -l -n /dev
  46
  47     echo "rebooting - please remove the ISO boot media"
  48     sleep 3
  49     reboot -nf
  50     sleep 5
  51     echo "trigger reset system request"
  52     # we do not expect the reboot above to fail, so rather to avoid kpanic when pid 1 exits
  53     echo b > /proc/sysrq-trigger
  54     sleep 100
  55 }
  56
  57 real_reboot() {
  58     trap - ERR
  59
  60     if [[ -x /etc/init.d/networking ]]; then
  61         /etc/init.d/networking stop
  62     fi
  63
  64     # stop udev (release file handles)
  65     /etc/init.d/udev stop
  66
  67     swap=$(awk '/^\/dev\// { print $1 }' /proc/swaps);
  68     if [ -n "$swap" ]; then
  69         echo -n "Deactivating swap..."
  70         swapoff "$swap"
  71         echo "done."
  72     fi
  73
  74     # just to be sure
  75     sync
  76
  77     umount -l -n /target >/dev/null 2>&1
  78     umount -l -n /dev/pts
  79     umount -l -n /dev/shm
  80     umount -l -n /run
  81     [ -d /sys/firmware/efi/efivars ] && umount -l -n /sys/firmware/efi/efivars
  82
  83     # do not unmount proc and sys for now, at least /proc is still required to trigger the actual
  84     # reboot, and both are virtual FS only anyway
  85
  86     echo "Terminate all remaining processes"
  87     kill -s TERM -1 # TERMinate all but current init (our self) PID 1
  88     sleep 2
  89     echo "Kill any remaining processes"
  90     kill -s KILL -1 # KILL all but current init (our self) PID 1
  91     sleep 0.5
  92
  93     eject_and_reboot
  94
  95     exit 0 # shouldn't be reached, kernel will panic in that case
  96 }
  97
  98 err_reboot() {
  99     printf "\nInstallation aborted - unable to continue (type exit or CTRL-D to reboot)\n"
 100     debugsh || true
 101     real_reboot
 102 }
 103
 104 # NOTE: dbus must be launched before this, else iwd cannot work
 105 # FIXME: very crude, still needs to actually copy over any iwd config to target
 106 handle_wireless() {
 107     wireless_found=
 108     for iface in /sys/class/net/*; do
 109         if [ -d "$iface/wireless" ]; then
 110             wireless_found=1
 111         fi
 112     done
 113     if [ -z $wireless_found ]; then
 114         return;
 115     fi
 116
 117     if [ -x /usr/libexec/iwd ]; then
 118         echo "wireless device(s) found, starting iwd; use 'iwctl' to manage connections (experimental)"
 119         /usr/libexec/iwd &
 120     else
 121         echo "wireless device found but iwd not available, ignoring"
 122     fi
 123 }
 124
 125 PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin
 126
 127 echo "Starting Proxmox installation"
 128
 129 # ensure udev doesn't ignores our request; FIXME: not required anymore, as we use switch_root now
 130 export SYSTEMD_IGNORE_CHROOT=1
 131
 132 mount -n -t proc proc /proc
 133 mount -n -t sysfs sysfs /sys
 134 if [ -d /sys/firmware/efi ]; then
 135     echo "EFI boot mode detected, mounting efivars filesystem"
 136     mount -n -t efivarfs efivarfs /sys/firmware/efi/efivars
 137 fi
 138 mount -n -t tmpfs tmpfs /run
 139 mkdir -p /run/proxmox-installer
 140
 141 parse_cmdline
 142
 143 # always load most common input drivers
 144 modprobe -q psmouse || true
 145 modprobe -q sermouse ||  true
 146 modprobe -q usbhid ||  true
 147
 148 # load device mapper - used by lilo
 149 modprobe -q dm_mod || true
 150
 151 echo "Installing additional hardware drivers"
 152 export RUNLEVEL=S
 153 export PREVLEVEL=N
 154 /etc/init.d/udev start
 155
 156 mkdir -p /dev/shm
 157 mount -t tmpfs tmpfs /dev/shm
 158
 159 # allow pseudo terminals for debuggin in X
 160 mkdir -p /dev/pts
 161 mount -vt devpts devpts /dev/pts -o gid=5,mode=620
 162
 163 # shellcheck disable=SC2207
 164 console_dim=($(IFS=' ' stty size)) # [height, width]
 165 DPI=96
 166 if (("${console_dim[0]}" > 100)) && (("${console_dim[1]}" > 400)); then
 167     # heuristic only, high resolution can still mean normal/low DPI if it's a really big screen
 168     # FIXME: use `edid-decode` as it can contain physical dimensions to calculate actual dpi?
 169     echo "detected huge console, setting bigger font/dpi"
 170     DPI=192
 171     export GDK_SCALE=2
 172     setfont /usr/share/consolefonts/Uni2-Terminus32x16.psf.gz
 173 fi
 174
 175 # set the hostname
 176 hostname proxmox
 177
 178 if command -v dbus-daemon; then
 179     echo "starting D-Bus daemon"
 180     mkdir /run/dbus
 181     dbus-daemon --system --syslog-only
 182
 183     if [ $proxdebug -ne 0 ]; then # FIXME: better intergration, e.g., use iwgtk?
 184         handle_wireless # no-op if not wireless dev is found
 185     fi
 186 fi
 187
 188 # we use a trimmed down debootstrap so make busybox tools available to compensate that
 189 busybox --install -s || true
 190
 191 setupcon || echo "setupcon failed, TUI rendering might be garbled - $?"
 192
 193 if [ $proxdebug -ne 0 ]; then
 194     /sbin/agetty -o '-p -- \\u' --noclear tty9 &
 195     printf "\nDropping in debug shell before starting installation\n"
 196     echo "type 'exit' or press CTRL + D to continue and start the installation wizard"
 197     debugsh || true
 198 fi
 199
 200 # try to get ip config with dhcp
 201 echo -n "Attempting to get DHCP leases... "
 202 dhclient -v
 203 echo "done"
 204
 205 echo "Starting chrony for opportunistic time-sync... "
 206 chronyd || echo "starting chrony failed ($?)"
 207
 208 echo "Starting a root shell on tty3."
 209 setsid /sbin/agetty -a root --noclear tty3 &
 210
 211 /usr/bin/proxmox-low-level-installer dump-env
 212
 213 if [ $proxtui -ne 0 ]; then
 214     echo "Starting the TUI installer"
 215     /usr/bin/proxmox-tui-installer 2>/dev/tty2
 216 else
 217     echo "Starting the installer GUI - see tty2 (CTRL+ALT+F2) for any errors..."
 218     xinit -- -dpi "$DPI" >/dev/tty2 2>&1
 219 fi
 220
 221 # just to be sure everything is on disk
 222 sync
 223
 224 if [ $proxdebug -ne 0 ]; then
 225     printf "\nDebug shell after installation exited (type exit or CTRL-D to reboot)\n"
 226     debugsh || true
 227 fi
 228
 229 echo "Installation done, rebooting... "
 230
 231 killall5 -15
 232
 233 real_reboot
 234
 235 # never reached
 236 exit 0