===Base Debian Install

• Install Debian 12 with just standard system utilities and SSH server, create root and standard user accounts during install.

Login as root then:

apt-get update
apt-get upgrade
apt-get install sudo
/usr/sbin/usermod -a -G sudo username

https://docs.vyos.io/en/sagitta/contributing/build-vyos.html#build-native

sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl gnupg2 software-properties-common
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
sudo apt-get update
sudo apt-get install -y docker-ce

sudo docker pull vyos/vyos-build:sagitta

Note: if you are updating to a new release delete the old images then do the docker pull. To delete the old images

sudo docker system prune

git clone -b sagitta --single-branch https://github.com/vyos/vyos-build

#Note: if you've done this already and are updating to a new release then 
sudo rm -rf vyos-build

Note, change the version to the 1.4 release you want or to whatever is the current stable release

cd vyos-build
sudo docker build -t vyos/vyos-build:sagitta docker
sudo docker run --rm -it --privileged -v $(pwd):/vyos -w /vyos vyos/vyos-build:sagitta bash
cd vyos-build
sudo ./build-vyos-image iso --architecture amd64 --build-type release --version 1.4.0 --build-by "j.randomhacker@vyos.io"

CD into build folder then scp iso file to another host.

cd build
scp vyos.iso user@host:~

To save VyOS config first save to system then save to file and scp it or save to sftp directly.

commit
save
save file
scp /config/saved.file user@remotehost:~

or

commit
save
save sftp://<user>:passwd>@<host>/<file>

or save scp the file from a remote host:

commit
save
(then from a different host)
scp vyosadmin@vyos:/config/saved.file ~

To restore scp file to vyos then load file

scp save.file vyosadmin@vyos:/config/saved.file
(then on vyos host)
load /config/saved.file
commit
save

or load a config directly from a remote host

load sftp://<user>:passwd>@<host>/<file>
commit
save

To load new image:

scp vyos.1.4.iso vyosadmin@vyos:/tmp

then:

add system image /tmp/vyos1.4.iso
reboot

or

add system image https://some.remote.host.com/vyos1.4/x64/vyos1.4.iso
reboot

Docker seems to eat space. https://forums.docker.com/t/some-way-to-clean-up-identify-contents-of-var-lib-docker-overlay/30604/44

Clean with:

sudo docker system prune -a