On update system from 1.3 to 1.4 you will be something like curl: (23) Failed writing body (3218 != 16366) if it has only 512 MB RAM
vyos@RTR1:~$ 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
55 436M 55 242M 0 0 23.5M 0 0:00:18 0:00:10 0:00:08 26.9M
curl: (23) Failed writing body (3218 != 16366)
Unable to fetch ISO from https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.isoQuick workaround how to update:
- Download with curl manually
curl -O https://link-to-image/image-name.iso
- Run update procedure from local file
add system image image-name.iso