LINUX install.sh does not install cleanly on top of existing version

[jarno-niemela]

Describe the bug
If I run install.sh in order to upgrade to new version I get following errors.

cp: cannot create regular file '/usr/local/bin/gladius-controld': Text file busy
cp: cannot create regular file '/usr/local/bin/gladius-networkd': Text file busy

To Reproduce
Steps to reproduce the behavior:

1. Install Gladius with install.sh and start the daemons
2. Run install again to simulate update
3. See error messages

Expected behavior
Installer kills existing daemons, runs install and restarts daemons

Fix suggestion

As simple as adding following to start of the install script:

killall gladius-networkd
killall gladius-controld

[broken-trigger]

plus

• stop the old daemons via systemctl
• disable and remove all gladius systemd entries under /etc/systemd
• remove $USER/.config/Gladius except wallet file
• remove binaries under /usr/local/bin/gladius*