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94 lines
4.5 KiB
94 lines
4.5 KiB
# Debian Network Reinstall Script |
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## Introduction |
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This script is written to reinstall a VPS/virtual machine to Debian 10 Buster. |
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## Should Work On |
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### Virtualization Platform |
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* SolusVM/OpenStack/DigitalOcean/Vultr/Linode/Proxmox/QEMU KVM (BIOS boot) |
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* Oracle Cloud Infrastructure (with `--force-efi-extra-removable`; UEFI boot) |
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* Google Cloud Compute Engine (manually set the VPC internal `--ip`, `--netmask`, `--gateway`; UEFI boot) |
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* AWS EC2 & Lightsail (BIOS boot) |
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* Hyper-V **but not Azure!** (Generation 1 BIOS boot & Generation 2 UEFI boot) |
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### Original OS |
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* Debian 8/9/10 |
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* Ubuntu 16.04/18.04/20.04 |
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* CentOS 7 |
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## How It Works |
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1. Generate a preseed file to automate installation |
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2. Download the 'Debian-Installer' to the `/boot` directory |
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3. Append a menu entry of the installer to the GRUB2 configuration file |
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## Usage |
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curl -fL https://raw.githubusercontent.com/bohanyang/debi/master/debi.sh | sudo bash -s -- <OPTIONS> |
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## Available Options |
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* `--preset <string>` Shortcut for applying [preset options](#presets) |
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* `--ip <string>` Static public/private IP, e.g. `10.0.0.2` |
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* `--netmask <string>` e.g. `255.255.255.0` / `ffff:ffff:ffff:ffff::` |
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* `--gateway <string>` e.g. `10.0.0.1` |
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* `--dns '8.8.8.8 8.8.4.4'` Ignored if `--ip` is not specified. Quoted string where IP addresses are seperated by spaces |
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* `--hostname debian` |
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* `--installer-password <string>` Enable installer network console to monitor installation status. e.g. `ssh installer@10.0.0.2` |
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* `--authorized-keys-url <string>` Setup SSH public key authentication for the new user and enable installer network console. e.g. `https://github.com/bohanyang.keys` |
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* `--suite buster` |
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* `--mirror-protocol http` or `https` or `ftp` |
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* `--mirror-host deb.debian.org` |
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* `--mirror-directory /debian` |
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* `--security-repository http://security.debian.org/debian-security` Magic value: `'mirror' = <mirror-protocol>://<mirror-host>/<mirror-directory>/../debian-security` |
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* `--skip-account-setup` |
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* `--username debian` New user with `sudo` privilege or `root` |
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* `--password <string>` New user password to set. **Will be prompted if not specified here** |
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* `--sudo-no-password` Make the user run "sudo" commands without entering the password |
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* `--timezone UTC` https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List |
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* `--ntp 0.debian.pool.ntp.org` |
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* `--skip-partitioning` |
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* `--partitioning-method regular` |
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* `--disk <string>` Manually select a boot disk when more than one disk is available. e.g. `/dev/sda` |
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* `--force-gpt` Create a *GUID Partition Table* **(Default)** |
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* `--no-force-gpt` |
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* `--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) |
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* `--efi` Create an *EFI system partition*. Default if `/sys/firmware/efi` exists |
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* `--filesystem ext4` |
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* `--kernel <string>` Choose an package for the kernel image |
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* `--cloud-kernel` Choose `linux-image-cloud-amd64` as the kernel image |
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* `--no-install-recommends` |
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* `--install 'ca-certificates libpam-systemd'` Additional packages to install. Quoted string where package names are seperated by spaces. **Package names specified here will override the default list, rather than append to it** |
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* `--safe-upgrade` **(Default)** `apt upgrade --with-new-pkgs`. [See](https://salsa.debian.org/installer-team/pkgsel/-/blob/master/debian/postinst) |
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* `--full-upgrade` `apt dist-upgrade` |
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* `--no-upgrade` |
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* `--eth` Disable *Consistent Network Device Naming* to get `eth0`, `eth1`, etc. back |
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* `--bbr` Enable TCP BBR congestion control |
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* `--power-off` Power off after installation rather than reboot |
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* `--architecture <string>` e.g. `amd64`, `i386`, `arm64`, `armhf`, etc. |
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* `--boot-partition` Should be used if `/boot` directory is mounted from a dedicated partition like a LVM setup |
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* `--firmware` Load additional [non-free firmwares](https://wiki.debian.org/Firmware#Firmware_during_the_installation) |
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* `--force-efi-extra-removable` [See](https://wiki.debian.org/UEFI#Force_grub-efi_installation_to_the_removable_media_path). **Useful on Oracle Cloud** |
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* `--dry-run` Print generated preseed and GRUB entry without downloading the installer and actually saving them |
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## Presets |
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### `china` |
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* `--dns '223.5.5.5 223.6.6.6'` |
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* `--mirror-protocol https` |
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* `--mirror-host mirrors.aliyun.com` |
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* `--security-repository mirror` |
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* `--ntp ntp.aliyun.com` |
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### `cloud` |
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* `--dns '1.1.1.1 1.0.0.1'` |
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* `--mirror-protocol https` |
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* `--mirror-host deb.debian.org` |
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* `--security-repository mirror` |
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* `--ntp 0.debian.pool.ntp.org`
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