Installation

Requirements

The recommended system requirements are 512 MiB RAM and 2 GiB storage. Depending on your use you might need additional RAM and CPU resources e.g. when having multiple BGP full tables in your system.

Getting the software

Registered subscribers

Registered subscribers can log into https://support.vyos.io/ to have access to a variety of different downloads via the “Downloads” link. These downloads include LTS (Long-Term-Support) and associated hot-fix releases, early public access releases, pre-built VM images, as well as device specific installation ISOs.

_images/vyos-downloads.png

Building from source

Non-subscribers can get the LTS release by building it from source. Instruction can be found here: Building VyOS

https://github.com/vyos/vyos-build

Rolling releases

Non-subscribers and subscribers can download bleeding-edge VyOS rolling images from: https://downloads.vyos.io/

The following link will always fetch the most updated AMD64 image of the current branch: https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso

Preparing software verification

This subsection and the following one applies to downloaded LTS images, for other versions please jump to Install.

LTS images are signed by VyOS lead package-maintainer private key. With the official public key, the authenticity of the package can be verified.

First, install GPG or another OpenPGP implementation. On most GNU+Linux distributions it is installed by default as package managers use it to verify package signatures. If not pre-installed, it will need to be downloaded and installed.

The offical VyOS public key can be retrieved in a number of ways. Skip to GPG verification if the key is already present.

It can also be retrieved directly from a key server:

gpg --recv-keys FD220285A0FE6D7E

Or it can be accessed from a key server via a web browser:

https://pgp.mit.edu/pks/lookup?op=get&search=0xFD220285A0FE6D7E

Or from the following block:

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.12 (GNU/Linux)
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=Ld8S
-----END PGP PUBLIC KEY BLOCK-----

Store the key in a new text file and import it into GPG via: gpg --import file_with_the_public_key

The import can be verified with:

$ gpg --list-keys
...
pub   rsa4096 2015-08-12 [SC]
    0694A9230F5139BF834BA458FD220285A0FE6D7E
uid           [ unknown] VyOS Maintainers (VyOS Release) <[email protected]>
sub   rsa4096 2015-08-12 [E]

GPG verification

With the public key imported, the signature for the desired image needs to be downloaded.

Note

The signature can be downloaded by appending .asc to the URL of the downloaded VyOS image. That small .asc file is the signature for the associated image.

Finally, verify the authencity of the downloaded image:

$ gpg2 --verify vyos-1.2.1-amd64.iso.asc  vyos-1.2.1-amd64.iso
gpg: Signature made So 14 Apr 12:58:07 2019 CEST
gpg:                using RSA key FD220285A0FE6D7E
gpg: Good signature from "VyOS Maintainers (VyOS Release) <[email protected]>" [unknown]
Primary key fingerprint: 0694 A923 0F51 39BF 834B  A458 FD22 0285 A0FE 6D7E

Install

VyOS ISO is a Live CD and will boot to a functional VyOS image.

To login to the system, use the default username and password will be: vyos

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
[email protected]:~$

[email protected]:~$ uname -a
Linux vyos 4.19.79-amd64-vyos #23 SMP Mon Oct 1 17:29:22 CEST 2018 x86_64 GNU/Linux

Unlike general purpose Linux distributions, VyOS uses “image installation” that mimics the user experience of traditional hardware routers and allows keeping multiple VyOS versions installed simultaneously. This makes it possible to switch to a previous version if something breaks or miss-behaves after an image upgrade.

Every version is contained in its own squashfs image that is mounted in a union filesystem together with a directory for mutable data such as configurations, keys, or custom scripts.

Note

Older versions (prior to VyOS 1.1) used to support non-image installation (install system command). Support for this has been removed from VyOS 1.2 and newer releases. Older releases can still be upgraded via the general add system image <image_path> upgrade command (consult System Image Management for further information).

To install VyOS, run install image after logging into the live system with the provided default credentials.

[email protected]:~$ install image
Welcome to the VyOS install program.  This script
will walk you through the process of installing the
VyOS image to a local hard drive.
Would you like to continue? (Yes/No) [Yes]: Yes
Probing drives: OK
Looking for pre-existing RAID groups...none found.
The VyOS image will require a minimum 2000MB root.
Would you like me to try to partition a drive automatically
or would you rather partition it manually with parted?  If
you have already setup your partitions, you may skip this step

Partition (Auto/Parted/Skip) [Auto]:

I found the following drives on your system:
 sda    4294MB

Install the image on? [sda]:

This will destroy all data on /dev/sda.
Continue? (Yes/No) [No]: Yes

How big of a root partition should I create? (2000MB - 4294MB) [4294]MB:

Creating filesystem on /dev/sda1: OK
Done!
Mounting /dev/sda1...
What would you like to name this image? [1.2.0-rolling+201809210337]:
OK.  This image will be named: 1.2.0-rolling+201809210337
Copying squashfs image...
Copying kernel and initrd images...
Done!
I found the following configuration files:
    /opt/vyatta/etc/config.boot.default
Which one should I copy to sda? [/opt/vyatta/etc/config.boot.default]:

Copying /opt/vyatta/etc/config.boot.default to sda.
Enter password for administrator account
Enter password for user 'vyos':
Retype password for user 'vyos':
I need to install the GRUB boot loader.
I found the following drives on your system:
 sda    4294MB

Which drive should GRUB modify the boot partition on? [sda]:

Setting up grub: OK
Done!
[email protected]:~$

After the installation is complete, remove the Live CD and reboot the system:

[email protected]:~$ reboot
Proceed with reboot? (Yes/No) [No] Yes

PXE Install

VyOS can also be installed through PXE. This is a more complex installation method which allows deploying VyOS through the network.

Requirements

  • Clients (where VyOS is to be installed) with a PXE-enabled NIC
  • A DHCP server
  • A TFTP server
  • A HTTP server (optional, but we will use it to speed up intallation)
  • The VyOS ISO image to be installed (do not use images prior to VyOS 1.2.3)
  • The pxelinux.0 and ldlinux.c32 files from the Syslinux distribution https://kernel.org/pub/linux/utils/boot/syslinux/

Step 1: DHCP

Configure DHCP server to provide the client with:

  • An IP address
  • The TFTP server address (DHCP option 66). Sometimes referred as boot server
  • The bootfile name (DHCP option 67), which is pxelinux.0

In this example we configured an existent VyOS as the DHCP server:

[email protected]# show service dhcp-server
 shared-network-name mydhcp {
     subnet 192.168.1.0/24 {
         bootfile-name pxelinux.0
         bootfile-server 192.168.1.50
         default-router 192.168.1.50
         range 0 {
             start 192.168.1.70
             stop 192.168.1.100
         }
     }
 }
[edit]
[email protected]#

Step 2: TFTP

Configure a TFTP server so that it serves the following:

  • pxelinux.0 from the Syslinux distribution
  • ldlinux.c32 from the Syslinux distribution
  • The kernel of the VyOS software you want to deploy. That is the vmlinuz file inside the /live directory of the extracted contents from the ISO file
  • The initial ramdisk of the VyOS ISO you want to deploy. That is the initrd.img file inside the /live directory of the extracted contents from the ISO file. Do not use an empty (0 bytes) initrd.img file you might find, the correct file may have a longer name.
  • A directory named pxelinux.cfg which must contain the configuration file: We will use the configuration file shown below, which we named default

In the example we configured our existent VyOS as the TFTP server too:

[email protected]# show service tftp-server
 directory /config/tftpboot
 listen-address 192.168.1.50
[edit]
[email protected]#

Example of the contents of the TFTP server:

[email protected]# ls -hal /config/tftpboot/
total 29M
drwxr-sr-x 3 tftp tftp      4.0K Oct 14 00:23 .
drwxrwsr-x 9 root vyattacfg 4.0K Oct 18 00:05 ..
-r--r--r-- 1 root vyattacfg  25M Oct 13 23:24 initrd.img-4.19.54-amd64-vyos
-rwxr-xr-x 1 root vyattacfg 120K Oct 13 23:44 ldlinux.c32
-rw-r--r-- 1 root vyattacfg  46K Oct 13 23:24 pxelinux.0
drwxr-xr-x 2 root vyattacfg 4.0K Oct 14 01:10 pxelinux.cfg
-r--r--r-- 1 root vyattacfg 3.7M Oct 13 23:24 vmlinuz

[email protected]# ls -hal /config/tftpboot/pxelinux.cfg
total 12K
drwxr-xr-x 2 root vyattacfg 4.0K Oct 14 01:10 .
drwxr-sr-x 3 tftp tftp      4.0K Oct 14 00:23 ..
-rw-r--r-- 1 root root       191 Oct 14 01:10 default

Example of simple (no menu) configuration file:

[email protected]# cat /config/tftpboot/pxelinux.cfg/default
DEFAULT VyOS123

LABEL VyOS123
 KERNEL vmlinuz
 APPEND initrd=initrd.img-4.19.54-amd64-vyos boot=live nopersistence \
        noautologin nonetworking fetch=http://address:8000/filesystem.squashfs

Step 3: HTTP

As you read in the configuration file, we are sending filesystem.squashfs through HTTP. As that is a heavy file, we choose HTTP to speed up the transfer over TFTP. Run a web server - you can use a simple one like Python’s SimpleHTTPServer and start serving the filesystem.squashfs file. The file can be found inside the /live directory of the extracted contents of the ISO file.

Edit the configuration file at the Step 2: TFTP so that it shows the correct URL at fetch=http://address/filesystem.squashfs. Then restart the TFTP service. If you are using VyOS as your TFTP Server, you can restart the service with sudo service tftpd-hpa restart.

Note

Make sure the available directories and files in both TFTP and HTTP server have the right permissions to be accessed from the booting clients.

Step 4: Boot the clients

Turn on your PXE-enabled client or clients. They will automatically get an IP address from the DHCP server and start booting into VyOS live from the files automatically taken from the TFTP and HTTP servers.

Once finished you will be able to proceed with the install image command as in a regular VyOS installation.