overhaul OS build (#2244)

* create init resize for pi

* wip

* defer to OS_ARCH env var

* enable password auth in live image

* use correct live image path

* reorder dependencies

* add grub-common as dependency

* add more depends

* reorder grub

* include systemd-resolved

* misc fixes

* remove grub from dependencies

* imports

* ssh and raspi builds

* fix resolvectl

* generate snake-oil on install

* update raspi build process

* script fixes

* fix resize and config

* add psmisc

* new workflows

* include img

* pass through OS_ARCH env var

* require OS_ARCH

* allow dispatching production builds

* configurable environment

* pass through OS_ARCH on compat build

* fix syntax error

* crossbuild dependencies

* include libavahi-client for cross builds

* reorder add-arch

* add ports

* switch existing repos to amd64

* explicitly install libc6

* add more bullshit

* fix some errors

* use ignored shlibs

* remove ubuntu ports

* platform deb

* Update depends

* Update startos-iso.yaml

* Update startos-iso.yaml

* require pi-beep

* add bios boot, fix environment

* Update startos-iso.yaml

* inline deb

* Update startos-iso.yaml

* allow ssh password auth in live build

* sync hostname on livecd

* require curl

build/raspberrypi/init_resize.sh

@@ -0,0 +1,134 @@
+#!/bin/bash
+
+get_variables () {
+  ROOT_PART_DEV=$(findmnt / -o source -n)
+  ROOT_PART_NAME=$(echo "$ROOT_PART_DEV" | cut -d "/" -f 3)
+  ROOT_DEV_NAME=$(echo /sys/block/*/"${ROOT_PART_NAME}" | cut -d "/" -f 4)
+  ROOT_DEV="/dev/${ROOT_DEV_NAME}"
+  ROOT_PART_NUM=$(cat "/sys/block/${ROOT_DEV_NAME}/${ROOT_PART_NAME}/partition")
+
+  BOOT_PART_DEV=$(findmnt /boot -o source -n)
+  BOOT_PART_NAME=$(echo "$BOOT_PART_DEV" | cut -d "/" -f 3)
+  BOOT_DEV_NAME=$(echo /sys/block/*/"${BOOT_PART_NAME}" | cut -d "/" -f 4)
+  BOOT_PART_NUM=$(cat "/sys/block/${BOOT_DEV_NAME}/${BOOT_PART_NAME}/partition")
+
+  OLD_DISKID=$(fdisk -l "$ROOT_DEV" | sed -n 's/Disk identifier: 0x\([^ ]*\)/\1/p')
+
+  ROOT_DEV_SIZE=$(cat "/sys/block/${ROOT_DEV_NAME}/size")
+  if [ "$ROOT_DEV_SIZE" -le 67108864 ]; then
+      TARGET_END=$((ROOT_DEV_SIZE - 1))
+  else
+      TARGET_END=$((33554432 - 1))
+      DATA_PART_START=33554432
+      DATA_PART_END=$((ROOT_DEV_SIZE - 1))
+  fi
+
+  PARTITION_TABLE=$(parted -m "$ROOT_DEV" unit s print | tr -d 's')
+
+  LAST_PART_NUM=$(echo "$PARTITION_TABLE" | tail -n 1 | cut -d ":" -f 1)
+
+  ROOT_PART_LINE=$(echo "$PARTITION_TABLE" | grep -e "^${ROOT_PART_NUM}:")
+  ROOT_PART_START=$(echo "$ROOT_PART_LINE" | cut -d ":" -f 2)
+  ROOT_PART_END=$(echo "$ROOT_PART_LINE" | cut -d ":" -f 3)
+}
+
+check_variables () {
+  if [ "$BOOT_DEV_NAME" != "$ROOT_DEV_NAME" ]; then
+      FAIL_REASON="Boot and root partitions are on different devices"
+      return 1
+  fi
+
+  if [ "$ROOT_PART_NUM" -ne "$LAST_PART_NUM" ]; then
+    FAIL_REASON="Root partition should be last partition"
+    return 1
+  fi
+
+  if [ "$ROOT_PART_END" -gt "$TARGET_END" ]; then
+    FAIL_REASON="Root partition runs past the end of device"
+    return 1
+  fi
+
+  if [ ! -b "$ROOT_DEV" ] || [ ! -b "$ROOT_PART_DEV" ] || [ ! -b "$BOOT_PART_DEV" ] ; then
+    FAIL_REASON="Could not determine partitions"
+    return 1
+  fi
+}
+
+main () {
+  get_variables
+
+  if ! check_variables; then
+    return 1
+  fi
+
+#   if [ "$ROOT_PART_END" -eq "$TARGET_END" ]; then
+#     reboot_pi
+#   fi
+
+  if ! echo Yes | parted -m --align=optimal "$ROOT_DEV" ---pretend-input-tty u s resizepart "$ROOT_PART_NUM" "$TARGET_END" ; then
+    FAIL_REASON="Root partition resize failed"
+    return 1
+  fi
+
+  if [ -n "$DATA_PART_START" ]; then
+    if ! parted -ms --align=optimal "$ROOT_DEV" u s mkpart primary "$DATA_PART_START" "$DATA_PART_END"; then
+      FAIL_REASON="Data partition creation failed"
+      return 1
+    fi
+  fi
+
+  (
+    echo x
+    echo i
+    echo "0xcb15ae4d"
+    echo r
+    echo w
+  ) | fdisk $ROOT_DEV
+
+  mount / -o remount,rw
+
+  resize2fs $ROOT_PART_DEV
+
+  if ! systemd-machine-id-setup; then
+    FAIL_REASON="systemd-machine-id-setup failed"
+    return 1
+  fi
+
+  if ! make-ssl-cert generate-default-snakeoil --force-overwrite; then
+    FAIL_REASON="snakeoil cert generation failed"
+    return 1
+  fi
+
+  if ! ssh-keygen -A; then
+    FAIL_REASON="ssh host key generation failed"
+    return 1
+  fi
+
+  ln -sf /usr/lib/embassy/scripts/fake-apt /usr/local/bin/apt-get
+
+  return 0
+}
+
+mount -t proc proc /proc
+mount -t sysfs sys /sys
+mount -t tmpfs tmp /run
+mkdir -p /run/systemd
+mount /boot
+mount / -o remount,ro
+
+beep
+
+if main; then
+  sed -i 's| init=/usr/lib/embassy/scripts/init_resize\.sh| boot=embassy|' /boot/cmdline.txt
+  echo "Resized root filesystem. Rebooting in 5 seconds..."
+  sleep 5
+else
+  echo -e "Could not expand filesystem.\n${FAIL_REASON}"
+  sleep 5
+fi
+
+sync
+
+umount /boot
+
+reboot -f