Debian Network Reinstall Script

Introduction

This script is used to reinstall the Linux OS of a KVM-based VPS or a Hyper-V virtual machine to Debian 10 Buster.

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

sudo bash -c "$(curl -fsSL https://github.com/bohanyang/debian-network-reinstall/raw/master/netinst.sh)" -- <OPTIONS>

Available Options

• --preset (china/cloud)
• --ip
• --netmask
• --gateway
• --dns '8.8.8.8 8.8.4.4'
• --hostname debian
• --installer-password
• --authorized-keys-url
• --suite buster
• --mirror-protocol http (http/https/ftp)
• --mirror-host deb.debian.org
• --mirror-directory /debian
• --security-repository http://security.debian.org/debian-security
• --skip-account-setup
• --username debian
• --password
• --timezone UTC https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List
• --ntp 0.debian.pool.ntp.org
• --skip-partitioning
• --partitioning-method regular
• --disk
• --force-gpt Create a GUID Partition Table (Default)
• --no-force-gpt
• --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
• --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
• --safe-upgrade
• --full-upgrade
• --eth Disable Consistent Network Device Naming to get eth0, eth1, etc. back
• --bbr
• --power-off
• --architecture
• --boot-partition
• --dry-run

Presets

china

• --dns '223.5.5.5 223.6.6.6'
• --protocol https
• --mirror mirrors.aliyun.com
• --security true
• --ntp ntp.aliyun.com

cloud

• --dns '1.1.1.1 1.0.0.1'
• --protocol https
• --mirror deb.debian.org
• --security true
• --ntp 0.debian.pool.ntp.org