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