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     start_auto_installer=0
   9     proxdebug=0
  10     proxtui=0
  11     serial=0
  12     # shellcheck disable=SC2013 # per word splitting is wanted here
  13     for par in $(cat /proc/cmdline); do
  14         case $par in
  15             proxdebug|proxmox-debug)
  16                 proxdebug=1
  17             ;;
  18             proxtui|proxmox-tui-mode)
  19                 proxtui=1
  20             ;;
  21             proxauto|proxmox-start-auto-installer)
  22                 start_auto_installer=1
  23             ;;
  24             console=ttyS*)
  25                 serial=1
  26             ;;
  27         esac
  28     done;
  29 }
  30
  31 debugsh() {
  32     /bin/bash
  33 }
  34
  35 eject_and_reboot() {
  36     iso_dev=$(awk '/ iso9660 / {print $1}' /proc/mounts)
  37
  38     for try in 5 4 3 2 1; do
  39         echo "unmounting ISO"
  40         if umount -v -a --types iso9660; then
  41             break
  42         fi
  43         if test -n $try; then
  44             echo "unmount failed - trying again in 5 seconds"
  45             sleep 5
  46         fi
  47     done
  48
  49     if [ -n "$iso_dev" ]; then
  50         eject "$iso_dev" || true # cannot really work currently, don't care
  51     fi
  52
  53     umount -l -n /dev
  54
  55     echo "rebooting - please remove the ISO boot media"
  56     sleep 3
  57     reboot -nf
  58     sleep 5
  59     echo "trigger reset system request"
  60     # we do not expect the reboot above to fail, so rather to avoid kpanic when pid 1 exits
  61     echo b > /proc/sysrq-trigger
  62     sleep 100
  63 }
  64
  65 real_reboot() {
  66     trap - ERR
  67
  68     if [[ -x /etc/init.d/networking ]]; then
  69         /etc/init.d/networking stop
  70     fi
  71
  72     # stop udev (release file handles)
  73     /etc/init.d/udev stop
  74
  75     swap=$(awk '/^\/dev\// { print $1 }' /proc/swaps);
  76     if [ -n "$swap" ]; then
  77         echo -n "Deactivating swap..."
  78         swapoff "$swap"
  79         echo "done."
  80     fi
  81
  82     # just to be sure
  83     sync
  84
  85     umount -l -n /target >/dev/null 2>&1
  86     umount -l -n /dev/pts
  87     umount -l -n /dev/shm
  88     umount -l -n /run
  89     [ -d /sys/firmware/efi/efivars ] && umount -l -n /sys/firmware/efi/efivars
  90
  91     # do not unmount proc and sys for now, at least /proc is still required to trigger the actual
  92     # reboot, and both are virtual FS only anyway
  93
  94     echo "Terminate all remaining processes"
  95     kill -s TERM -1 # TERMinate all but current init (our self) PID 1
  96     sleep 2
  97     echo "Kill any remaining processes"
  98     kill -s KILL -1 # KILL all but current init (our self) PID 1
  99     sleep 0.5
 100
 101     eject_and_reboot
 102
 103     exit 0 # shouldn't be reached, kernel will panic in that case
 104 }
 105
 106 # reachable through the ERR trap
 107 # shellcheck disable=SC2317
 108 err_reboot() {
 109     printf "\nInstallation aborted - unable to continue (type exit or CTRL-D to reboot)\n"
 110     debugsh || true
 111     real_reboot
 112 }
 113
 114 # NOTE: dbus must be launched before this, else iwd cannot work
 115 # FIXME: very crude, still needs to actually copy over any iwd config to target
 116 handle_wireless() {
 117     wireless_found=
 118     for iface in /sys/class/net/*; do
 119         if [ -d "$iface/wireless" ]; then
 120             wireless_found=1
 121         fi
 122     done
 123     if [ -z $wireless_found ]; then
 124         return;
 125     fi
 126
 127     if [ -x /usr/libexec/iwd ]; then
 128         echo "wireless device(s) found, starting iwd; use 'iwctl' to manage connections (experimental)"
 129         /usr/libexec/iwd &
 130     else
 131         echo "wireless device found but iwd not available, ignoring"
 132     fi
 133 }
 134
 135 PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin
 136
 137 echo "Starting Proxmox installation"
 138
 139 # ensure udev doesn't ignores our request; FIXME: not required anymore, as we use switch_root now
 140 export SYSTEMD_IGNORE_CHROOT=1
 141
 142 mount -n -t proc proc /proc
 143 mount -n -t sysfs sysfs /sys
 144 if [ -d /sys/firmware/efi ]; then
 145     echo "EFI boot mode detected, mounting efivars filesystem"
 146     mount -n -t efivarfs efivarfs /sys/firmware/efi/efivars
 147 fi
 148 mount -n -t tmpfs tmpfs /run
 149 mkdir -p /run/proxmox-installer
 150
 151 parse_cmdline
 152
 153 # always load most common input drivers
 154 modprobe -q psmouse || true
 155 modprobe -q sermouse ||  true
 156 modprobe -q usbhid ||  true
 157
 158 # load device mapper - used by lilo
 159 modprobe -q dm_mod || true
 160
 161 echo "Installing additional hardware drivers"
 162 export RUNLEVEL=S
 163 export PREVLEVEL=N
 164 /etc/init.d/udev start
 165
 166 mkdir -p /dev/shm
 167 mount -t tmpfs tmpfs /dev/shm
 168
 169 # allow pseudo terminals for debuggin in X
 170 mkdir -p /dev/pts
 171 mount -vt devpts devpts /dev/pts -o gid=5,mode=620
 172
 173 # shellcheck disable=SC2207
 174 console_dim=($(IFS=' ' stty size)) # [height, width]
 175 DPI=96
 176 if (("${console_dim[0]}" > 100)) && (("${console_dim[1]}" > 400)); then
 177     # heuristic only, high resolution can still mean normal/low DPI if it's a really big screen
 178     # FIXME: use `edid-decode` as it can contain physical dimensions to calculate actual dpi?
 179     echo "detected huge console, setting bigger font/dpi"
 180     DPI=192
 181     export GDK_SCALE=2
 182     setfont /usr/share/consolefonts/Uni2-Terminus32x16.psf.gz
 183 fi
 184
 185 # set the hostname
 186 hostname proxmox
 187
 188 if command -v dbus-daemon; then
 189     echo "starting D-Bus daemon"
 190     mkdir /run/dbus
 191     dbus-daemon --system --syslog-only
 192
 193     if [ $proxdebug -ne 0 ]; then # FIXME: better intergration, e.g., use iwgtk?
 194         handle_wireless # no-op if not wireless dev is found
 195     fi
 196 fi
 197
 198 # we use a trimmed down debootstrap so make busybox tools available to compensate that
 199 busybox --install -s || true
 200
 201 setupcon || echo "setupcon failed, TUI rendering might be garbled - $?"
 202
 203 if [ "$serial" -ne 0 ]; then
 204     echo "Setting terminal size to 80x24 for serial install"
 205     stty columns 80 rows 24
 206 fi
 207
 208 if [ $proxdebug -ne 0 ]; then
 209     /sbin/agetty -o '-p -- \\u' --noclear tty9 &
 210     printf "\nDropping in debug shell before starting installation\n"
 211     echo "type 'exit' or press CTRL + D to continue and start the installation wizard"
 212     debugsh || true
 213 fi
 214
 215 # add custom DHCP options for auto installer
 216 if [ $start_auto_installer -ne 0 ]; then
 217     echo "Preparing DHCP as potential source to get location of automatic-installation answer file"
 218     cat >> /etc/dhcp/dhclient.conf <<EOF
 219 option proxmox-auto-installer-manifest-url code 250 = text;
 220 option proxmox-auto-installer-cert-fingerprint code 251 = text;
 221 also request proxmox-auto-installer-manifest-url, proxmox-auto-installer-cert-fingerprint;
 222 EOF
 223 fi
 224
 225 # try to get ip config with dhcp
 226 echo -n "Attempting to get DHCP leases... "
 227 dhclient -v
 228 echo "done"
 229
 230 echo "Starting chrony for opportunistic time-sync... "
 231 chronyd || echo "starting chrony failed ($?)"
 232
 233 echo "Starting a root shell on tty3."
 234 setsid /sbin/agetty -a root --noclear tty3 &
 235
 236 /usr/bin/proxmox-low-level-installer dump-env
 237
 238 if [ $proxtui -ne 0 ]; then
 239     echo "Starting the TUI installer"
 240     /usr/bin/proxmox-tui-installer 2>/dev/tty2
 241 elif [ $start_auto_installer -ne 0 ]; then
 242     echo "Caching device info from udev"
 243     /usr/bin/proxmox-low-level-installer dump-udev
 244
 245     if [ -f /cdrom/auto-installer-mode.toml ]; then
 246         echo "Fetching answers for automatic installation"
 247         /usr/bin/proxmox-fetch-answer >/run/automatic-installer-answers
 248     else
 249         printf "\nAutomatic installation selected but no config for fetching the answer file found!\n"
 250         echo "Starting debug shell, to fetch the answer file manually use:"
 251         echo "  proxmox-fetch-answer MODE >/run/automatic-installer-answers"
 252         echo "and enter 'exit' or press 'CTRL' + 'D' when finished."
 253         debugsh || true
 254     fi
 255     echo "Starting automatic installation"
 256     /usr/bin/proxmox-auto-installer </run/automatic-installer-answers
 257 else
 258     echo "Starting the installer GUI - see tty2 (CTRL+ALT+F2) for any errors..."
 259     xinit -- -dpi "$DPI" -s 0 >/dev/tty2 2>&1
 260 fi
 261
 262 # just to be sure everything is on disk
 263 sync
 264
 265 if [ $proxdebug -ne 0 ]; then
 266     printf "\nDebug shell after installation exited (type exit or CTRL-D to reboot)\n"
 267     debugsh || true
 268 fi
 269
 270 echo "Installation done, rebooting... "
 271
 272 killall5 -15
 273
 274 real_reboot
 275
 276 # never reached
 277 # shellcheck disable=SC2317
 278 exit 0