# 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, for bio-stack machine(both have IPv4 and IPv6 address), after loggin to new system, you can realize that only IPv4 address has been configurated, we need to config IPv6 address manually.
edit network interfaces:

vim /etc/network/interfaces

add ipv6 configurations:

iface ens3 inet6 static
        address ::1
        netmask 64
        dns-nameservers 2606:4700:4700:0:0:0:0:6400

In above sample, you just need to change "::1" to your own IPv6 address which assigned by your cloud provider. "netmask" 64 is a typical value, "dns-nameservers" is from Cloudflare.com.

Save files and restart system.

:wq
reboot

- "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"