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How to create a KVM VyOS root filesystem for VNX

Installation

VyOS is an open source network operating system that is based on Debian GNU/Linux and that joins multiple applications such as Quagga, ISC DHCPD, OpenVPN, StrongS/WAN and others under a single management interface. It can be installed on physical hardware or on virtual machines and it is a community fork of Vyatta.

Follow this procedure as a root user to create a VyOS based KVM root filesystem for VNX. The procedure has been tested with VyOS 1.1.7 over a Ubuntu 16.04 system.

  • Create the filesystem disk image:
  • qemu-img create -f qcow2 vnx_rootfs_kvm_vyos64-1.1.7-v025.qcow2 8G
    
  • Get VyOS installation CD:
  • wget http://packages.vyos.net/iso/release/1.1.7/vyos-1.1.7-amd64.iso
    cp vyos-1.1.7-amd64.iso /almacen/iso
    
  • Create the virtual machine with:
  • vnx --create-rootfs vnx_rootfs_kvm_vyos64-1.1.7-v025.qcow2 --install-media /almacen/iso/vyos-1.1.7-amd64.iso --mem 512M --arch x86_64
    
  • Login with vyos/vyos and execute:
  • install image
    
  • Answer all the installation questions with the default values. Once installed, stop the virtual machine with:
  • poweroff
    
  • Restart the VM with:
  • vnx --modify-rootfs vnx_rootfs_kvm_vyos64-1.1.7-v025.qcow2 --update-aced --mem 512M --arch x86_64
    
  • Install VNX autoconfiguration daemon:
  • sudo su
    mount /dev/sdb /mnt/
    perl /mnt/vnxaced-lf/install_vnxaced
    
  • Create a file /etc/vnx_rootfs_version to store version number and informacion about modification:
  • VER=v0.25
    OS=VyOS (Debian 6.0.10 64 bits)
    DESC=Basic VyOS Linux based network operating system (Debian 6.0.10 64 bits) root filesystem
    
  • Enter using vyos/vyos user/password and create the vnx/xxxx user and enable ssh access with:
  • exit   # to exit 'sudo su' and come back to user vyos
    configure
    set system login user vnx full-name "VNX project"
    set system login user vnx authentication plaintext-password xxxx
    set system login user vnx level admin          
    set service ssh port 22  
    commit
    save
    exit
    
  • Stop the machine with vnx_halt:
  • sudo vnx_halt
    

Testing

You can test the rootfilesystem with the following tutorial example:

vnx -f /usr/share/vnx/examples/tutorial_vyos.xml -v -t



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