V12 install problem in ubuntu 18 hangs everytime on VirtualBox host

i used to install several times previous releases successfully at easy install. but in ubuntu 18, when i try to install v12 production, installation hangs everytime, i try different fresh installings in GitHub - frappe/bench: CLI to manage Multi-tenant deployments for Frappe apps easy install but it always hangs after entering admin password. the hdd signal always working in virtualbox and nothing happens for hours.

sudo apt install dirmngr -y

before easy install command

ERROR! The requested handler ‘restart network manager’ was not found
now it shows up this error

Can confirm with Debian 8+
Now of a sudden need to install Dir Manager first.

sudo apt-get install dirmngr

it says “dirmanager is already the latest version”

always provide the admin password with the command for running the EasyInstall script with the admin-password option. That worked without any issue as you describe on a fresh v12 in ubuntu 1804 as well

python install.sh --admin-password [your_password] --mysql-root-password [mysql-password] --production

that also spares you to look at the installation in order to provide those password when the script asks for them.

this is not the issue. i think easy install script directions are useless and not working in v12

it holds in here for 10 hours