# Tools Something about scripts # Linux reinstall useage ## Features: - "InstallNET.sh" will give you a clean, safe, official Linux system, and help you escape of your server providers' monitoring. - The operation is easy, several minutes installation will be complated. - Support Debian 8+, Ubuntu 14.04+, CentOS 6. - Support major cloud providers, especially support Oracle Cloud ARM machine. - You can modify architecture, mirror, firmware, ssh port, password etc. - Friendly to low memory machine(recommend RAM above 256MB), If your machine RAM is less than 768MB, before Debian 11 and above version installation, you may should not bash it with "-firmware" or "-firmware --cdimage" parameters because it won't let machine installation go into low memory mode and causes installation failed! - Ubuntu 22.04 has cancelled net boot start features, so this program don't support Ubuntu 22.04 and above reinstallation(source: https://www.reddit.com/r/Ubuntu/comments/uroape/is_there_a_netbootiso_equivalent_for_2204_jammy/). - South Korea debian official mirror(http://ftp.kr.debian.org/debian/) is usually crashed down, so I change mirror of Kyoto University to replace it. Japan debian mirror is from https://www.riken.jp/, a science research organization in Japan. America debian mirror is from Massachusetts Institute of Technology: https://web.mit.edu/. - Completely modified debian, such as support terminal files colorful displaying, permanently change dns server, disable expired certificates, add on a cute welcome introduction, pre-install many complements in preseeding progress, now enjoy a newly, comfortable, graceful debian experience! ![1](1.jpg) - Change name server for Debian permanently is provided by "resolvconf", related configuration files has been wittened. you just need to logging in new installed system, and run:

echo "O" | apt install resolvconf -y

to make changes validating! ## Defects: - Debian preseeding process can only config one IP address, so to bio-stack machine(both have IPv4 and IPv6 address), after loggin to new system, you can only see IPv4 address are configurated, you have to config IPv6 address manually: edit network interfaces

vim /etc/network/interfaces

add ipv6 configurations

iface ens3 inet6 static
        address your ipv6 address
        netmask 64
        dns-nameservers 2606:4700:4700:0:0:0:0:6400

- "InstallNET.sh" doesn't support pure IPv6 stack machine(have no IPv4 address, such as Vultr.com 2.5$/month plan). ## Download:

wget --no-check-certificate -qO InstallNET.sh 'https://raw.githubusercontent.com/leitbogioro/Tools/master/Linux_reinstall/InstallNET.sh' && chmod a+x InstallNET.sh

## Fully useage sample

bash InstallNET.sh -d/u/c(os type) 11(os version) -v 64(os bit) -port "your server port" -pwd "your server password" -a(auto install)/m(manually in VNC) -mirror "a valid url for OS image source" -firmware(with hardware drivers) --cdimage "cn"(this option is only for Debian)

## Parameters Descriptions **-d** : Debian

**-u**: Ubuntu

**-c**: CentOS

**32/i386 or 64/amd64 or arm64**: OS bit

**-mirror**: OS install files resource, you can select one which nearest for actual location of your server to upspeed installation.

for Debian, official recommend mirror lists are here:

https://www.debian.org/mirror/list.html

for Ubuntu, official recommend mirror lists are here:

https://launchpad.net/ubuntu/+cdmirrors

for CentOS, official recommend mirror lists are here:

https://www.centos.org/download/mirrors/

**-firmware or -firmware --cdimage "cn"**: specify hardware drivers for Debian, if your server location is in mainland China, you can prefer it to mirror of 'University of Science and Technology of China(https://mirrors.ustc.edu.cn/debian-cdimage/)' for downloading more quickly, default mirror is from http://cdimage.debian.org/cdimage/.

**-port**: you can pre-specify ssh port of system, range is 1~65535, **default is '22'**.

**-pwd**: you can pre-specify ssh password of system, **default is 'LeitboGi0ro'**.

## Quickly start ### Debian 8

bash InstallNET.sh -d 8 -v 64 -a

### Debian 9

bash InstallNET.sh -d 9 -v 64 -a

### Debian 10

bash InstallNET.sh -d 10 -v 64 -a

### Debian 11 (prefer mirror manually with firmware, recommend for servers which are locating in mainland China) Tsinghua University:

bash InstallNET.sh -d 11 -v 64 -a -mirror "https://mirrors.tuna.tsinghua.edu.cn/debian/" -firmware --cdimage "cn"