In this tutorial how to convert Centos 7 server to MikroTik router using bash script. MikroTik is a popular router for every ISP. MikroTik provides many installation process like iso, image file, chr and more. So in this tutorial using chr  image.

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Step #01: Check server operating system version using below command.

[root@localhost ~]# cat /etc/redhat-release

Then check ip address using below command.

[root@localhost ~]# ip r

Step #02: create script.sh file and insert command.

[root@localhost ~]# vi script.sh

Now insert below all lines into this file.

#!/bin/bash
wget https://download.mikrotik.com/routeros/6.44.6/chr-6.44.6.img.zip -O chr.img.zip  && \
gunzip -c chr.img.zip > chr.img  && \
mount -o loop,offset=512 chr.img /mnt && \
ADDRESS=`ip addr show eth1 | grep global | cut -d' ' -f 6 | head -n 1` && \
GATEWAY=`ip route list | grep default | cut -d' ' -f 3` && \
echo "/ip address add address=$ADDRESS interface=[/interface ethernet find where name=ether1]
/ip route add gateway=$GATEWAY
/ip service disable telnet
/user set 0 name=root password=xxxxxx
 " > /mnt/rw/autorun.scr && \
umount /mnt && \
echo u > /proc/sysrq-trigger && \
dd if=chr.img bs=1024 of=/dev/xvda && \
echo "sync disk" && \
echo s > /proc/sysrq-trigger && \
echo "Sleep 5 seconds" && \
sleep 5 && \
echo "Ok, reboot" && \
echo b > /proc/sysrq-trigger

Then press Esc type :wq then press Enter for save file.

Remember : Must be change eth1 and /dev/xvda as your own server interface name and disk name otherwise not properly install this script.

Check your server disk name

[root@localhost ~]# lsblk

Check your server interface name using below command.

[root@localhost ~]# ip a

Then see your interface name.

If any error so please see my YouTube channel for more videos.