Update VyOS
New system images can be added using the add system image
command. The command will extract the chosen image and will prompt you
to use the current system configuration and SSH security keys, allowing
for the new image to boot using the current configuration.
Note
Only LTS releases are PGP-signed.
Use this command to install a new system image. You can reach the image from the web (http://, https://) or from your local system, e.g. /tmp/vyos-1.2.3-amd64.iso.
If URL in question requires authentication, you can specify an optional username and password via the commandline which will be passed as “Basic-Auth” to the server.
If there is not enough free disk space available, the installation
will be canceled. To delete images use the delete system image
command.
VyOS configuration is associated to each image, and each image has a unique copy of its configuration. This is different than a traditional network router where the configuration is shared across all images.
Note
If you have any personal files, like some scripts you created,
and you don’t want them to be lost during the upgrade, make sure
those files are stored in /config as this directory is always copied
to newer installed images.
You can access files from a previous installation and copy them to your
current image if they were located in the /config directory. This
can be done using the copy command. So, for instance, in order
to copy /config/config.boot from VyOS 1.2.1 image, you would use the
following command:
copy file 1.2.1://config/config.boot to /tmp/config.boot.1.2.1
Example
vyos@vyos:~$ add system image https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso
Trying to fetch ISO file from https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 338M 100 338M 0 0 3837k 0 0:01:30 0:01:30 --:--:-- 3929k
ISO download succeeded.
Checking for digital signature file...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
curl: (22) The requested URL returned error: 404 Not Found
Unable to fetch digital signature file.
Do you want to continue without signature check? (yes/no) [yes]
Checking MD5 checksums of files on the ISO image...OK.
Done!
What would you like to name this image? [vyos-1.3-rolling-201912201452]:
OK. This image will be named: vyos-1.3-rolling-201912201452
Hint
After reboot you might want to verify the version you are running with
the show version command.