Различия

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--- projects:temp [2025/04/02 19:00] –
+++ projects:temp [2025/04/02 20:38] (текущий) – [1]
@@ Строка 1: / Строка 1: @@
 ====== rootfs ======
+===== 1 =====
 <code bash>
 #!/bin/bash
@@ Строка 77: / Строка 77: @@
 done
-# === 🔄 Подключение loop ===
+MAX_MB=$((LIMIT_GB * 1024))
-LOOP_DEV=$(losetup --show -Pf "$IMGFILE")
-mkdir -p "$MOUNT_DIR"
-mount "${LOOP_DEV}p2" "$MOUNT_DIR"
-# === Удаление авторасширения ===
-rm -f "$MOUNT_DIR/etc/init.d/resize2fs_once"
-rm -f "$MOUNT_DIR/etc/systemd/system/resize2fs_once.service"
-rm -f "$MOUNT_DIR/etc/rc*.d/*resize2fs_once"
-sed -i 's@ init=/usr/lib/raspi-config/init_resize.sh@@' "$MOUNT_DIR/boot/cmdline.txt"
 # === Установка stretch_limited в initramfs ===
-mkdir -p "$MOUNT_DIR/etc/initramfs-tools/scripts/init-premount"
+mkdir -p "$TARGET_DIR/etc/initramfs-tools/scripts/init-premount"
-cat <<EOF > "$MOUNT_DIR$INITRD_SCRIPT"
+cat > "$TARGET_DIR$INITRD_SCRIPT" <<EOF
 #!/bin/sh
-PREREQ=""
+PRIORITY=top
-prereqs() { echo "\$PREREQ"; }
-case "\$1" in
-  prereqs) prereqs; exit 0;;
-esac
-. /scripts/functions
-FLAG_FILE="/etc/.stretch_done"
+exec 1>>/stretch_limiter.log 2>&1
+set -eux
+echo "[initramfs] stretch_limited: запуск"
 DEV="/dev/mmcblk0"
 PART="\${DEV}p2"
-MAX_MB=\$((LIMIT_GB * 1024))
+FLAG_FILE="/etc/.stretch_done"
-LOGFILE="/boot/stretch_limiter.log"
+MAX_MB=$MAX_MB
-log() { echo "[\$(date +%F\ %T)] \$1" >> "\$LOGFILE"; }
-[ -f "\$FLAG_FILE" ] && log "Флаг уже есть, выход" && exit 0
+if [ -f "\$FLAG_FILE" ]; then
+  echo "Файл stretch_done найден. Выход."
-log "📉 Минимизация rootfs (resize2fs -M)..."
+  exit 0
-resize2fs -M "\$PART" 2>>"\$LOGFILE"
+fi
-log "📐 Ограничиваем rootfs до \$MAX_MB МБ"
 START=\$(fdisk -l "\$DEV" | awk '/mmcblk0p2/ {print \$2}')
 END=\$(fdisk -l "\$DEV" | awk '/mmcblk0p2/ {print \$3}')
 SECTOR_SIZE=\$(blockdev --getss "\$DEV")
 CURRENT_MB=\$(( (END - START + 1) * SECTOR_SIZE / 1024 / 1024 ))
+echo "Текущий размер: \$CURRENT_MB MB, лимит: \$MAX_MB MB"
 if [ "\$CURRENT_MB" -le "\$MAX_MB" ]; then
-  log "✅ Размер уже в пределах"
+  echo "Уже в пределах лимита."
-else
+  touch "\$FLAG_FILE"
-  parted -s "\$DEV" resizepart 2 "\${MAX_MB}MB"
+  exit 0
-  partprobe "\$DEV"
-  sleep 1
-  resize2fs "\$PART"
-  log "✅ rootfs ограничен до \$MAX_MB МБ"
 fi
+echo "Изменение раздела..."
+parted -s "\$DEV" resizepart 2 "\${MAX_MB}MB"
+partprobe "\$DEV"
+sleep 2
+resize2fs "\$PART"
 touch "\$FLAG_FILE"
+echo "✅ Готово"
 EOF
-chmod +x "$MOUNT_DIR$INITRD_SCRIPT"
-# === Монтируем окружение для chroot ===
+chmod +x "$TARGET_DIR$INITRD_SCRIPT"
-mount --bind /dev "$MOUNT_DIR/dev"
-mount --bind /sys "$MOUNT_DIR/sys"
-mount --bind /proc "$MOUNT_DIR/proc"
-# === Установка локали и initramfs ===
+chroot "$TARGET_DIR" update-initramfs -u
-chroot "$MOUNT_DIR" apt-get update
+ln -sf /boot/initrd.img-$(uname -r) "$TARGET_DIR/boot/initrd.img"
-chroot "$MOUNT_DIR" apt-get install -y locales initramfs-tools
-chroot "$MOUNT_DIR" locale-gen en_US.UTF-8 || true
-chroot "$MOUNT_DIR" update-initramfs -c -k all
-# === Отмонтирование окружения ===
-umount "$MOUNT_DIR/proc"
-umount "$MOUNT_DIR/sys"
-umount "$MOUNT_DIR/dev"
-# === Обновление config.txt и initrd.img ===
-sed -i '/^initramfs /d' "$MOUNT_DIR/boot/config.txt"
-kver=$(chroot "$MOUNT_DIR" uname -r)
-ln -sf "initrd.img-$kver" "$MOUNT_DIR/boot/initrd.img"
-echo "initramfs initrd.img followkernel" >> "$MOUNT_DIR/boot/config.txt"
-umount "$MOUNT_DIR"
-losetup -d "$LOOP_DEV"
 echo "✅ stretch_limited установлен в initramfs и образ. Будет выполнен при загрузке до монтирования rootfs."
+</code>
+===== 2 =====
+Проверка
+<code>
+lsinitramfs /boot/initrd.img-$(uname -r) | grep stretch_limited
+</code>
+<code bash>
+lsinitramfs /boot/initrd.img-$(uname -r) -l | grep stretch_limited &&
+lsinitramfs /boot/initrd.img-$(uname -r) | grep -q "stretch_limited" && echo "✅ Есть в initramfs"
+</code>
+<code bash>
+cat /boot/stretch_limiter.log
+df -h /
 </code>