# Debian Network Reinstall Script ## 甲骨文云服务器重装 Debian 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 <这里设置 root 密码> ``` * 以上命令选项开启了 BBR；设置了网卡名称形式是 `eth0` 而不是 `ens3` 这种。 * 如果是一般的 x86 架构 64 位机器（不是 ARM 架构的），还可以添加 `--cloud-kernel` 使用轻量版内核。 * 不加 `--password` 选项会提示输入密码。 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。 [甲骨文云服务器自动获取 IPv6](https://github.com/bohanyang/debi/wiki/%E7%94%B2%E9%AA%A8%E6%96%87%E4%BA%91%E6%9C%8D%E5%8A%A1%E5%99%A8%E8%87%AA%E5%8A%A8%E8%8E%B7%E5%8F%96-IPv6) ## Introduction This script is written to reinstall a VPS/virtual machine to Debian 10 Buster. ## 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 1. Generate a preseed file to automate installation 2. Download the 'Debian-Installer' to the `/boot` directory 3. 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 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 * `--ip ` 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 ` e.g. `255.255.255.0`, `ffff:ffff:ffff:ffff::` * `--gateway ` e.g. `10.0.0.1` * `--dns '8.8.8.8 8.8.4.4'` (Default IPv6 DNS: `2001:4860:4860::8888 2001:4860:4860::8844`) * `--hostname ` 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 * `--suite buster` * `--mirror-protocol http` or `https` or `ftp` * `--https` alias to `--mirror-protocol https` * `--mirror-host deb.debian.org` * `--mirror-directory /debian` * `--security-repository http://security.debian.org/debian-security` Magic value: `'mirror' = :////../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 ` Password of the new user. **You'll be prompted if you choose to not specify it here** * `--authorized-keys-url ` 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` 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 ` 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](https://askubuntu.com/a/501360) * `--efi` Create an *EFI system partition*. Default if `/sys/firmware/efi` exists * `--filesystem ext4` * `--kernel ` Choose an package for the kernel image * `--cloud-kernel` Choose `linux-image-cloud-amd64` as the kernel image * `--no-install-recommends` * `--install 'ca-certificates libpam-systemd'` * `--safe-upgrade` **(Default)** `apt upgrade --with-new-pkgs`. [See](https://salsa.debian.org/installer-team/pkgsel/-/blob/master/debian/postinst) * `--full-upgrade` `apt dist-upgrade` * `--no-upgrade` * `--ethx` Disable *Consistent Network Device Naming* to get interface names like *ethX* back * `--bbr` Enable TCP BBR congestion control * `--hold` Don't reboot or power off after installation * `--power-off` Power off after installation rather than reboot * `--architecture ` e.g. `amd64`, `i386`, `arm64`, `armhf`, etc. * `--boot-directory ` * `--firmware` Load additional [non-free firmwares](https://wiki.debian.org/Firmware#Firmware_during_the_installation) * `--no-force-efi-extra-removable` [See](https://wiki.debian.org/UEFI#Force_grub-efi_installation_to_the_removable_media_path) * `--grub-timeout 5` How many seconds the GRUB menu shows before entering the installer * `--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`