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Update reinstall-fbl.sh
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reinstall-fbl.sh
267
reinstall-fbl.sh
@ -1,20 +1,12 @@
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#!/usr/bin/env bash
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# reinstall-freebsd-linux.sh
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# Reinstall system on Linux / FreeBSD (推荐在 ISO/Rescue 环境运行) using DD + cloud-init (NoCloud) with:
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# Reinstall system on Linux / FreeBSD using DD + cloud-init (NoCloud) with:
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# - freebsd
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# - rocky
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# - almalinux
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# - fedora
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# - redhat
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#
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# 推荐使用方式（RHEL + 面板 ISO 流程示意）：
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# 1. 在 RHEL 里根据需求决定目标系统和参数（disk / password / ssh-key / frpc 等）。
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# 2. 到面板 / 管理界面把启动介质切换为某个 ISO（Alpine/Rescue/LiveCD 等）。
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# 3. 在 RHEL 里执行 `reboot`（这一步是手动，不由脚本控制）。
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# 4. 机器从 ISO/Rescue 启动后，下载本脚本并用同样参数运行，例如：
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# bash reinstall-freebsd-linux.sh freebsd 14 --disk /dev/sda --ssh-key ...
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# 接下来脚本会全自动：下载镜像 → 解压 → qemu-img 转换 → cloud-init → DD → 自动重启。
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#
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# All target systems use cloud-init to inject:
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# - root password (--password)
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# - SSH public key(s) (--ssh-key, multiple)
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@ -24,7 +16,7 @@
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# Requirements:
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# - Run with bash: bash reinstall-freebsd-linux.sh ...
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# - Needs dd, xz, qemu-img, mount, and curl or wget or fetch
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# - On Linux (RHEL/Rocky/Alma/Fedora) this script will try to install missing deps automatically.
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# - This script is typically run in ISO/Rescue environment, not in the original RHEL.
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set -eE
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@ -46,11 +38,11 @@ info() {
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usage() {
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cat <<EOF
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Usage:
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$SCRIPT_NAME freebsd 14 [--disk /dev/sdX] [options...]
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$SCRIPT_NAME rocky 10 [--disk /dev/sdX] [options...]
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$SCRIPT_NAME almalinux 10 [--disk /dev/sdX] [options...]
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$SCRIPT_NAME fedora 43 [--disk /dev/sdX] [options...]
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$SCRIPT_NAME redhat [--disk /dev/sdX] --img URL [options...]
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$SCRIPT_NAME freebsd 14 [--disk /dev/sdX] [options...]
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$SCRIPT_NAME rocky 10 [--disk /dev/sdX] [options...]
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$SCRIPT_NAME almalinux 10 [--disk /dev/sdX] [options...]
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$SCRIPT_NAME fedora 43 [--disk /dev/sdX] [options...]
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$SCRIPT_NAME redhat [--disk /dev/sdX] --img URL [options...]
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If --disk is not specified, the script will try to auto-detect the main disk:
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- On Linux, picks the largest non-removable disk from lsblk.
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@ -90,7 +82,9 @@ Options:
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and start frpc if available.
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--hold 1 Only validate and print planned actions, do not download or write disk.
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--hold 2 Perform dd + NoCloud injection but do NOT reboot.
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Useful for connectivity/parameter checks.
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--hold 2 Perform dd + NoCloud injection but do NOT reboot. Useful to inspect or
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chroot into the new system before first boot.
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Password / SSH key behaviour:
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- If you specify one or more --ssh-key, you may omit --password (root login via key only).
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@ -107,6 +101,11 @@ Examples:
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bash $SCRIPT_NAME almalinux 10 --disk /dev/sda --password "P@ssw0rd"
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bash $SCRIPT_NAME fedora 43 --disk /dev/vda --ssh-key https://example.com/id_ed25519.pub
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bash $SCRIPT_NAME redhat --img "https://access.cdn.redhat.com/...qcow2?...auth..." --disk /dev/sda --ssh-key "ssh-ed25519 AAAA... comment"
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Notes:
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* This script will dd an entire disk. Make sure the auto-detected disk is correct,
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or override it with --disk explicitly.
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* All target systems use cloud-init NoCloud to inject root password, SSH keys, etc.
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EOF
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exit 1
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}
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@ -151,45 +150,9 @@ detect_os_arch() {
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esac
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}
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ensure_dependencies_linux_rhel_like() {
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# Only called on Linux with /etc/redhat-release present.
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if [ "$(id -u)" -ne 0 ]; then
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warn "Running as non-root; cannot auto-install dependencies. Please run as root if you want auto-install."
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return
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fi
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local pm=
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if command -v dnf >/dev/null 2>&1; then
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pm="dnf"
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elif command -v yum >/dev/null 2>&1; then
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pm="yum"
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fi
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if [ -z "$pm" ]; then
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warn "Could not find dnf/yum on a Red Hat like system; please install dependencies manually."
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return
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fi
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local need_pkgs=()
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if ! command -v qemu-img >/dev/null 2>&1; then
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need_pkgs+=("qemu-img")
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fi
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if ! command -v xz >/dev/null 2>&1; then
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need_pkgs+=("xz")
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fi
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if ! command -v curl >/dev/null 2>&1 && ! command -v wget >/dev/null 2>&1 && ! command -v fetch >/dev/null 2>&1; then
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need_pkgs+=("curl")
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fi
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if [ "${#need_pkgs[@]}" -gt 0 ]; then
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info "Installing missing dependencies with $pm: ${need_pkgs[*]}"
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"$pm" -y install "${need_pkgs[@]}"
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fi
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}
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# -------- dependencies (不再区分 RHEL / 非 RHEL，统一只检查，不自动安装) --------
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ensure_dependencies_linux_generic() {
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# For non-Red-Hat Linux, just check and error with a clear message.
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local missing=()
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if ! command -v qemu-img >/dev/null 2>&1; then
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@ -209,8 +172,6 @@ Please install them manually with your package manager (e.g. apt, zypper, pacman
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}
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ensure_dependencies_freebsd() {
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# Placeholder for future automation.
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# For now just check and give a hint.
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local missing=()
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if ! command -v qemu-img >/dev/null 2>&1; then
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@ -232,24 +193,20 @@ Hint: you can install them with:
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ensure_dependencies() {
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if [ "$OS" = "Linux" ]; then
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if [ -f /etc/redhat-release ]; then
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ensure_dependencies_linux_rhel_like
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else
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ensure_dependencies_linux_generic
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fi
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ensure_dependencies_linux_generic
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elif [ "$OS" = "FreeBSD" ]; then
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ensure_dependencies_freebsd
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fi
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}
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# --------------------------------------------------------------------
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auto_detect_disk() {
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# Only called when DISK is empty.
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info "Auto-detecting target disk..."
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if [[ "$OS" == "Linux" ]]; then
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if command -v lsblk >/dev/null 2>&1; then
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local best_name="" best_size=0
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# NAME TYPE RM SIZE(bytes)
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while read -r name type rm size; do
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[ "$type" = "disk" ] || continue
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[ "$rm" = "0" ] || continue
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@ -267,7 +224,6 @@ auto_detect_disk() {
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fi
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error "Unable to auto-detect target disk on Linux. Please specify --disk explicitly."
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else
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# FreeBSD
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if command -v sysctl >/dev/null 2>&1; then
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local disks
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disks=$(sysctl -n kern.disks 2>/dev/null || true)
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@ -284,7 +240,6 @@ auto_detect_disk() {
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fi
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}
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# Show disk partition info at the end (best-effort).
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show_partition_info() {
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echo
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echo "---------------- Disk partition layout ----------------"
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@ -297,7 +252,6 @@ show_partition_info() {
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echo "Could not show partition info (no lsblk/fdisk)."
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fi
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else
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# FreeBSD
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if command -v gpart >/dev/null 2>&1; then
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local d="${DISK#/dev/}"
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gpart show "$d" 2>/dev/null || gpart show "$DISK" 2>/dev/null || echo "Could not show partition info with gpart."
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@ -308,6 +262,20 @@ show_partition_info() {
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echo "-------------------------------------------------------"
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}
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# 保留 RHEL hook（可选），只是执行另外一个脚本，与依赖无关
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run_rhel_freebsd_hook() {
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if [ "$OS" = "Linux" ] && [ -f /etc/redhat-release ]; then
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if [ -f "./reinstall-fbll.sh" ]; then
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info "RHEL detected, running: bash reinstall-fbll.sh freebsd 14"
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if ! bash ./reinstall-fbll.sh freebsd 14; then
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warn "reinstall-fbll.sh freebsd 14 failed, continuing anyway."
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fi
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else
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warn "RHEL detected, but ./reinstall-fbll.sh not found; skipping RHEL hook."
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fi
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fi
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}
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# Parse ssh-key: supports inline / URL / github / gitlab / file
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parse_ssh_key() {
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local val="$1"
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@ -353,11 +321,9 @@ Available options:
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[ -n "$ssh_key" ] || ssh_key_error_and_exit "No valid SSH key found in $key_url"
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;;
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*)
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# Reject Windows-style paths explicitly
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if [[ "$val" =~ ^[A-Za-z]:\\ ]]; then
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ssh_key_error_and_exit "Windows path is not supported, please copy the key file to local filesystem and use /path/to/public_key"
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fi
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# Inline key or local file
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if is_valid_ssh_key "$val"; then
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ssh_key="$val"
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else
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@ -373,7 +339,6 @@ Available options:
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echo "$ssh_key"
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}
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# Choose default image URL based on target OS, version, and host arch
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get_default_image_url() {
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local os="$1" ver="$2"
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@ -456,7 +421,6 @@ get_default_image_url() {
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esac
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;;
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redhat)
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# Red Hat image must be supplied by user via --img
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echo ""
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;;
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*)
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@ -466,14 +430,12 @@ get_default_image_url() {
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}
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find_efi_partition() {
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# Guess EFI partition name from disk path (p1 vs 1)
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local disk="$1" part
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case "$disk" in
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*/nvme*|*/*nvd*)
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part="${disk}p1"
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;;
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*)
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# /dev/sda /dev/vda /dev/ada0 etc.
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if [[ "$(uname -s)" == "FreeBSD" ]]; then
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part="${disk}p1"
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else
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@ -489,13 +451,11 @@ write_nocloud_seed() {
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mkdir -p "$(dirname "$meta_path")"
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# meta-data
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cat >"$meta_path" <<EOF
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instance-id: iid-$(date +%s)
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local-hostname: $os
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EOF
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# user-data (cloud-config)
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{
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echo "#cloud-config"
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@ -518,7 +478,6 @@ EOF
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done <<<"$SSH_KEYS_ALL"
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fi
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# Example of writing web-port to a file for later use
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if [ -n "$WEB_PORT" ]; then
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cat <<EOF
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@ -531,7 +490,6 @@ write_files:
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EOF
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fi
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# runcmd: change SSH port + optional FRPC
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if [ -n "$SSH_PORT" ] || [ -n "$FRPC_PRESENT" ]; then
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echo
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echo "runcmd:"
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@ -584,7 +542,6 @@ FRPC_PRESENT=""
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HOLD="0"
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AUTO_PASSWORD=0
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# If the next positional arg is numeric, treat it as version for specific OSes.
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if [ $# -gt 0 ] && [[ "$1" =~ ^[0-9]+$ ]]; then
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case "$TARGET_OS" in
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freebsd|rocky|almalinux|fedora)
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@ -665,9 +622,8 @@ while [ $# -gt 0 ]; do
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done
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detect_os_arch
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ensure_dependencies # auto install / check qemu-img, xz, curl/wget/fetch
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ensure_dependencies # no auto-install, just verify deps
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# Disk handling: auto-detect if not provided
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if [ -n "$DISK" ]; then
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if [[ "$DISK" != /dev/* ]]; then
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DISK="/dev/$DISK"
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@ -680,20 +636,18 @@ if [ ! -b "$DISK" ] && [ ! -c "$DISK" ]; then
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error "Target disk $DISK does not exist or is not a block/char device"
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fi
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# Password / SSH key behaviour:
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# If neither password nor ssh-key specified, ask for password; if still empty, generate random.
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# Password / SSH key behaviour
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if [ -z "$PASSWORD" ] && [ -z "$SSH_KEYS_ALL" ]; then
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echo "No --password or --ssh-key specified."
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echo "You can set a root password now, or leave empty to auto-generate a random 20-character password."
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while :; do
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# 不再隐藏密码输入，方便排错
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read -r -p "Enter root password (leave empty to auto-generate): " pw1
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read -r -s -p "Enter root password (leave empty to auto-generate): " pw1
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echo
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# Empty: auto-generate random password, no need to confirm
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if [ -z "$pw1" ]; then
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if command -v tr >/dev/null 2>&1; then
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# 修正：A-Za-z0n9 -> A-Za-z0-9
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PASSWORD=$(LC_ALL=C tr -dc 'A-Za-z0-9' </dev/urandom | head -c 20 || true)
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fi
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if [ -z "$PASSWORD" ]; then
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@ -704,8 +658,7 @@ if [ -z "$PASSWORD" ] && [ -z "$SSH_KEYS_ALL" ]; then
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break
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fi
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# Non-empty: ask for confirmation, loop until they match
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read -r -p "Confirm root password: " pw2
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read -r -s -p "Confirm root password: " pw2
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echo
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if [ "$pw1" = "$pw2" ]; then
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@ -718,19 +671,17 @@ if [ -z "$PASSWORD" ] && [ -z "$SSH_KEYS_ALL" ]; then
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done
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fi
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# Default versions
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if [ -z "$TARGET_VER" ]; then
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case "$TARGET_OS" in
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freebsd) TARGET_VER="14" ;;
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rocky) TARGET_VER="10" ;;
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almalinux) TARGET_VER="10" ;;
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fedora) TARGET_VER="43" ;;
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redhat) TARGET_VER="" ;; # user must provide image
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redhat) TARGET_VER="" ;;
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*) ;;
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esac
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fi
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# Get default image URL (redhat requires user-supplied --img)
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if [ -z "$IMG_URL" ]; then
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IMG_URL=$(get_default_image_url "$TARGET_OS" "$TARGET_VER")
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if [ -z "$IMG_URL" ] && [ "$TARGET_OS" = "redhat" ]; then
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@ -748,116 +699,43 @@ if [ "$HOLD" = "1" ]; then
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exit 0
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fi
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TMPDIR
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= $(mktemp -d /tmp/reinstall-cloudinit.XXXXXX)
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TMPDIR=$(mktemp -d /tmp/reinstall-cloudinit.XXXXXX)
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trap 'rm -rf "$TMPDIR"' EXIT
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IMG_QCOW="$TMPDIR/image.qcow2"
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IMG_RAW="$TMPDIR/image.raw"
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# Download image
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info "Downloading image..."
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http_download "$IMG_URL" "$IMG_QCOW"
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# Check if it's xz compressed (only if 'file' exists)
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if command -v file >/dev/null 2>&1 && file "$IMG_QCOW" | grep -qi 'xz compressed'; then
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info "Detected xz compressed image, decompressing with dd (progress should be visible even on tty)..."
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if file "$IMG_QCOW" | grep -qi 'xz compressed'; then
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info "Detected xz compressed image, decompressing (progress may be shown)..."
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mv "$IMG_QCOW" "$IMG_QCOW.xz"
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# 用 dd status=progress 来显示解压进度
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xz -dc "$IMG_QCOW.xz" | dd of="$IMG_QCOW" bs=4M status=progress
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if command -v pv >/dev/null 2>&1; then
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xz -dc "$IMG_QCOW.xz" | pv >"$IMG_QCOW"
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else
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xz -dc "$IMG_QCOW.xz" >"$IMG_QCOW"
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fi
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fi
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# Convert to raw using qemu-img (with progress)
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info "Converting qcow2 to raw with qemu-img (with progress)..."
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qemu-img convert -p -O raw "$IMG_QCOW" "$IMG_RAW"
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# Final confirmation
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echo
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echo "WARNING: dd will be run on $DISK. ALL DATA ON THIS DISK WILL BE LOST!"
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read -r -p "Type 'yes' or 'y' to continue: " ans
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case "$ans" in
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yes|y|Y) ;;
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*) error "Operation cancelled by user." ;;
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esac
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# RHEL: unregister subscription BEFORE dd（非必须，ISO 里一般不会触发）
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if [ "$OS" = "Linux" ] && [ -f /etc/redhat-release ] && command -v subscription-manager >/dev/null 2>&1; then
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info "RHEL detected, trying to unregister existing subscription before overwriting disk..."
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if ! subscription-manager unregister; then
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warn "subscription-manager unregister failed, continuing anyway."
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fi
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read -r -p "Type 'yes' to continue: " ans
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if [ "$ans" != "yes" ]; then
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error "Operation cancelled by user."
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fi
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# Try to inject NoCloud into image EFI (best effort)
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inject_nocloud_into_image() {
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if [ "$OS" != "Linux" ]; then
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return 0
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fi
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if ! command -v losetup >/dev/null 2>&1; then
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warn "losetup not found, skipping NoCloud injection into image."
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return 0
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fi
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# 注意：subscription-manager unregister 已经从这里移除，
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# 请在 RHEL 阶段的脚本里（还在 RHEL 根系统时）单独调用。
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info "Mounting raw image and injecting NoCloud seed into its EFI (before dd)..."
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local loopdev=
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loopdev=$(losetup --find --show "$IMG_RAW") || {
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warn "Failed to create loop device for image, skipping NoCloud injection."
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return 0
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}
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|
||||
# Try reread partition
|
||||
partprobe "$loopdev" 2>/dev/null || true
|
||||
|
||||
local efi_part="${loopdev}p1"
|
||||
local mnt_img="$TMPDIR/img-efi"
|
||||
mkdir -p "$mnt_img"
|
||||
|
||||
if ! mount "$efi_part" "$mnt_img" 2>/dev/null; then
|
||||
if ! mount -t vfat "$efi_part" "$mnt_img" 2>/dev/null && ! mount -t msdos "$efi_part" "$mnt_img" 2>/dev/null; then
|
||||
warn "Failed to mount image EFI partition $efi_part; skipping NoCloud injection."
|
||||
losetup -d "$loopdev" || true
|
||||
return 0
|
||||
fi
|
||||
fi
|
||||
|
||||
local NOCLOUD_DIR_IMG="$mnt_img/nocloud"
|
||||
mkdir -p "$NOCLOUD_DIR_IMG"
|
||||
|
||||
# FRPC
|
||||
if [ -n "$FRPC_TOML" ]; then
|
||||
FRPC_PRESENT=1
|
||||
if [[ "$FRPC_TOML" =~ ^https?:// ]]; then
|
||||
info "Downloading FRPC config for image: $FRPC_TOML"
|
||||
if ! http_download "$FRPC_TOML" "$NOCLOUD_DIR_IMG/frpc.toml"; then
|
||||
warn "Failed to download FRPC config for image, ignoring"
|
||||
FRPC_PRESENT=""
|
||||
fi
|
||||
elif [ -f "$FRPC_TOML" ]; then
|
||||
info "Copying FRPC config for image from: $FRPC_TOML"
|
||||
cp "$FRPC_TOML" "$NOCLOUD_DIR_IMG/frpc.toml"
|
||||
else
|
||||
warn "Invalid FRPC config path: $FRPC_TOML, ignoring"
|
||||
FRPC_PRESENT=""
|
||||
fi
|
||||
fi
|
||||
|
||||
info "Writing NoCloud seed into image EFI:/nocloud/ ..."
|
||||
write_nocloud_seed "$TARGET_OS" "$NOCLOUD_DIR_IMG/meta-data" "$NOCLOUD_DIR_IMG/user-data"
|
||||
|
||||
sync || true
|
||||
umount "$mnt_img" || true
|
||||
losetup -d "$loopdev" || true
|
||||
}
|
||||
|
||||
inject_nocloud_into_image
|
||||
|
||||
# dd to disk
|
||||
info "Writing image to disk with dd, this may take a while..."
|
||||
dd if="$IMG_RAW" of="$DISK" bs=4M conv=fsync status=progress
|
||||
sync || true
|
||||
sync
|
||||
info "dd finished."
|
||||
|
||||
# Try to refresh partition table (best-effort)
|
||||
if command -v partprobe >/dev/null 2>&1; then
|
||||
partprobe "$DISK" || true
|
||||
elif command -v blockdev >/dev/null 2>&1; then
|
||||
@ -866,10 +744,8 @@ fi
|
||||
|
||||
sleep 2
|
||||
|
||||
# Find and mount EFI partition on target disk for NoCloud (best effort)
|
||||
EFI_PART
|
||||
= $(find_efi_partition "$DISK")
|
||||
info "Trying EFI partition on target disk: $EFI_PART"
|
||||
EFI_PART=$(find_efi_partition "$DISK")
|
||||
info "Trying EFI partition: $EFI_PART"
|
||||
|
||||
MNT_EFI="$TMPDIR/efi"
|
||||
mkdir -p "$MNT_EFI"
|
||||
@ -881,7 +757,6 @@ if [[ "$OS" == "FreeBSD" ]]; then
|
||||
fi
|
||||
else
|
||||
if ! mount "$EFI_PART" "$MNT_EFI" 2>/dev/null; then
|
||||
# Some systems require explicit vfat
|
||||
if ! mount -t vfat "$EFI_PART" "$MNT_EFI" 2>/dev/null && ! mount -t msdos "$EFI_PART" "$MNT_EFI" 2>/dev/null; then
|
||||
warn "Failed to mount EFI partition $EFI_PART, skipping cloud-init NoCloud injection."
|
||||
EFI_PART=""
|
||||
@ -893,7 +768,6 @@ if [ -n "$EFI_PART" ]; then
|
||||
NOCLOUD_DIR="$MNT_EFI/nocloud"
|
||||
mkdir -p "$NOCLOUD_DIR"
|
||||
|
||||
# Handle FRPC config if present
|
||||
if [ -n "$FRPC_TOML" ]; then
|
||||
FRPC_PRESENT=1
|
||||
if [[ "$FRPC_TOML" =~ ^https?:// ]]; then
|
||||
@ -914,7 +788,7 @@ if [ -n "$EFI_PART" ]; then
|
||||
info "Writing NoCloud seed to EFI:/nocloud/ ..."
|
||||
write_nocloud_seed "$TARGET_OS" "$NOCLOUD_DIR/meta-data" "$NOCLOUD_DIR/user-data"
|
||||
|
||||
sync || true
|
||||
sync
|
||||
umount "$MNT_EFI" || true
|
||||
else
|
||||
warn "EFI could not be mounted; target system can still boot, but cloud-init configuration may not be applied."
|
||||
@ -922,10 +796,10 @@ fi
|
||||
|
||||
info "Image write and cloud-init NoCloud injection completed."
|
||||
|
||||
# Show partition info
|
||||
run_rhel_freebsd_hook
|
||||
|
||||
show_partition_info
|
||||
|
||||
# Final summary: username, password/key, SSH port
|
||||
FINAL_SSH_PORT="${SSH_PORT:-22}"
|
||||
|
||||
echo
|
||||
@ -962,25 +836,12 @@ if [ "$HOLD" = "2" ]; then
|
||||
exit 0
|
||||
fi
|
||||
|
||||
# 注意：这里按你的要求，DD 完成后不再交互，直接尝试重启。
|
||||
info "Rebooting into new system..."
|
||||
|
||||
# 尝试正常 reboot，如果已经被 dd 搞坏就用 sysrq 强制重启
|
||||
if command -v systemctl >/dev/null 2>&1; then
|
||||
systemctl reboot || true
|
||||
echo
|
||||
echo "You can now reboot into the new system, for example:"
|
||||
if [ "$OS" = "FreeBSD" ]; then
|
||||
echo " shutdown -r now"
|
||||
else
|
||||
echo " reboot"
|
||||
fi
|
||||
|
||||
if command -v reboot >/dev/null 2>&1; then
|
||||
reboot || true
|
||||
fi
|
||||
|
||||
# 最后兜底：sysrq 强制重启（内核级别，不依赖 systemd/用户空间）
|
||||
if [ -w /proc/sysrq-trigger ]; then
|
||||
echo 1 > /proc/sys/kernel/sysrq 2>/dev/null || true
|
||||
echo b > /proc/sysrq-trigger
|
||||
fi
|
||||
|
||||
# 如果到这里还没重启，只能让用户手动在面板上重启
|
||||
warn "Automatic reboot failed. Please use your provider's control panel to power cycle the VM."
|
||||
|
||||
exit 0
|
||||
|
||||
Loading…
Reference in New Issue
Block a user