Debian Network Reinstall Script

VPS 网络重装 Debian 11 脚本

暂不支持 Oracle Linux 作为原系统。创建新机器时请选择 Ubuntu 20.04 或 18.04 系统模板。

下载脚本：

curl -fLO https://raw.githubusercontent.com/bohanyang/debi/master/debi.sh && chmod a+rx debi.sh

运行脚本：

sudo ./debi.sh --cdn --network-console --ethx --bbr --user root --password <新系统用户密码>

--bbr 开启 BBR
--ethx 网卡名称使用传统形式，如 eth0 而不是 ens3
--cloud-kernel 安装占用空间较小的 cloud 内核，但可能会导致 UEFI 启动的机器（如 Oracle、Azure 及 Hyper-V、Google Cloud 等）VNC 黑屏。BIOS 启动的普通 VPS 则没有此问题。
默认时区为 UTC，添加 --timezone Asia/Shanghai 可使用**时区。
默认使用 Debian 官方 CDN 镜像源（deb.debian.org），添加 --china 可使用阿里云镜像源。

如果没有报错可以重启：

sudo shutdown -r now

约 30 秒后可以尝试 SSH 登录 installer 用户，密码与之前设置的相同。如果成功连接，可以按 Ctrl-A 然后再按 4 监控安装日志。安装完成后会自动重启进入新系统。

Oracle 自动获取 IPv6

Oracle 纯 IPv6 网络（无公网 IPv4）下安装方法

Introduction

This script is written to reinstall a VPS/virtual machine to minimal Debian 11.

Should Work On

Virtualization Platform

SolusVM/OpenStack/DigitalOcean/Vultr/Linode/Proxmox/QEMU KVM (BIOS boot)
Oracle Cloud Infrastructure (UEFI boot)
Google Cloud Compute Engine (Must manually configure the VPC internal IP and the gateway. UEFI boot with Secure Boot support)
AWS EC2 & Lightsail (BIOS boot)
Hyper-V & Azure (Generation 1 BIOS boot & Generation 2 UEFI boot)

Original OS

Debian 8 or later
Ubuntu 14.04 or later
CentOS 7 or later

How It Works

Generate a preseed file to automate installation
Download the 'Debian-Installer' to the /boot directory
Append a menu entry of the installer to the GRUB2 configuration file

Usage

1. Download

Download the script with curl:

curl -fLO https://raw.githubusercontent.com/bohanyang/debi/master/debi.sh

# for IPv6-only machines
curl -fLO --resolve 'raw.githubusercontent.com:443:2a04:4e42::133' https://raw.githubusercontent.com/bohanyang/debi/master/debi.sh

or wget:

wget -O debi.sh https://raw.githubusercontent.com/bohanyang/debi/master/debi.sh

2. Run

Run the script under root or using sudo:

chmod a+rx debi.sh
sudo ./debi.sh

By default, an admin user debian with sudo privilege will be created during the installation. Use --user root if you prefer.

3. Reboot

If everything looks good, reboot the machine:

sudo shutdown -r now

Otherwise, you can run this command to revert all changes made by the script:

sudo rm -rf debi.sh /etc/default/grub.d/zz-debi.cfg /boot/debian-* && { sudo update-grub || sudo grub2-mkconfig -o /boot/grub2/grub.cfg; }

Available Options

--interface <string> Manually select a network interface, e.g. eth1
--ethx Disable Consistent Network Device Naming to get interface names like ethX back
--ip <string> Disable the auto network config (DHCP) and configure a static IP address, e.g. 10.0.0.2, 1.2.3.4/24, 2001:2345:6789:abcd::ef/48
--netmask <string> e.g. 255.255.255.0, ffff:ffff:ffff:ffff::
--gateway <string> e.g. 10.0.0.1, none if no gateway
--dns '8.8.8.8 8.8.4.4' (Default IPv6 DNS: 2001:4860:4860::8888 2001:4860:4860::8844)
--hostname <string> FQDN hostname (includes the domain name), e.g. server1.example.com
--network-console Enable the network console of the installer. ssh installer@ip to connect
--version 11 Supports: 9, 10, 11, 12
--suite bullseye For normal cases, please use --version instead. e.g. stable, testing, sid
--release-d-i d-i (Debian Installer) for the released versions: 11 (bullseye), 10 (buster) and 9 (stretch)
--daily-d-i Use latest daily build of d-i (Debian Installer) for the unreleased version: 12 (bookworm), sid (unstable)
--mirror-protocol http or https or ftp
--https alias to --mirror-protocol https
--reuse-proxy Reuse the value of http(s)_proxy environment variable as the mirror proxy
--proxy, --mirror-proxy Set an HTTP proxy for APT and downloads
--mirror-host deb.debian.org
--mirror-directory /debian
--security-repository http://security.debian.org/debian-security Magic value: 'mirror' = <mirror-protocol>://<mirror-host>/<mirror-directory>/../debian-security
--no-account-setup, --no-user (Manual installation) Proceed account setup manually in VNC or remote console.
--username, --user debian New user with sudo privilege or root
--password <string> Password of the new user. You'll be prompted if you choose to not specify it here
--authorized-keys-url <string> URL to your authorized keys for SSH authentication. e.g. https://github.com/torvalds.keys
--sudo-with-password Require password when the user invokes sudo command
--timezone UTC e.g. Asia/Shanghai for China (UTC+8) https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List
--ntp 0.debian.pool.ntp.org
--no-disk-partitioning, --no-part (Manual installation) Proceed disk partitioning manually in VNC or remote console
--disk <string> Manually select a disk for installation. Please remember to specify this when more than one disk is available! e.g. /dev/sda
--no-force-gpt By default, GPT rather than MBR partition table will be created. This option disables it.
--bios Don't create EFI system partition. If GPT is being used, create a BIOS boot partition (bios_grub partition). Default if /sys/firmware/efi is absent. See
--efi Create an EFI system partition. Default if /sys/firmware/efi exists
--esp 106 Size of the EFI system partition. e.g. 106, 538 and 1075 result to 100 MiB, 512 MiB, 1 GiB respectively
--filesystem ext4
--kernel <string> Choose an package for the kernel image
--cloud-kernel Choose linux-image-cloud-amd64 or ...arm64 as the kernel image
--bpo-kernel Choose the kernel image from Debian Backports (newer version from the next Debian release)
--no-install-recommends
--install 'ca-certificates libpam-systemd' Install additional APT packages. Space-separated and quoted.
--safe-upgrade (Default) apt upgrade --with-new-pkgs. See
--full-upgrade apt dist-upgrade
--no-upgrade
--bbr Enable TCP BBR congestion control
--ssh-port <integer> SSH port
--hold Don't reboot or power off after installation
--power-off Power off after installation rather than reboot
--architecture <string> e.g. amd64, i386, arm64, armhf, etc.
--firmware Load additional non-free firmwares
--no-force-efi-extra-removable See
--grub-timeout 5 How many seconds the GRUB menu shows before entering the installer
--force-lowmem <integer> Valid values: 0, 1, 2. Force low memory level. Useful if your machine has memory less than 500M where level 2 is set (see issue #45). --force-lowmem 1 may solve it.
--dry-run Print generated preseed and GRUB entry without downloading the installer and actually saving them

Presets

`--cdn`

--mirror-protocol https
--mirror-host deb.debian.org
--security-repository mirror

`--aws`

--mirror-protocol https
--mirror-host cdn-aws.deb.debian.org
--security-repository mirror

`--china`

--dns '223.5.5.5 223.6.6.6'
--mirror-protocol https
--mirror-host mirrors.aliyun.com
--security-repository mirror
--ntp ntp.aliyun.com

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