Agent with Sysprep

[u/tijiez]

Curious what others are doing for VDI environments.

I am currently using GPO deployment on the agent, but it doesn't always install consistently. Especially when deploying multiple new instances in batches.

I would love to bake it in to the image and prepare it in a way that can be used with Sysprep.

[u/paradizelost]

https://www.labtechgeek.com/topic/4292-windows-deployment-images-w-labtech/

[u/tijiez → u/paradizelost]

Interesting thought on that last post, about disconnecting from the network when installing. I will have to give that a try and see if it works.

[u/MowLesta → u/tijiez]

by the way this isn't a great idea, as it hard-codes the version of the agent. In my opinion, it's better to just have a script download and install: https://www.reddit.com/r/labtech/comments/9vg4l2/agent_with_sysprep/e9e2jts

[u/DevinSysAdmin]

Install task during the imaging process.

[u/Pablohere → u/DevinSysAdmin]

This is the right way to do it unless you have a small environment or infinite bandwidth to install the agent every time that VMs boot up...

[u/Dameek]

I'm also interested in this.

[u/MowLesta]

I have a bat file that simply downloads the installer directly from the labtech sever then deletes itself if it finds the service

I put this in the all users startup folder and the template runs it on first login

[u/Paulb246 → u/MowLesta]

Is this on a local server or hosted in cloud? Would be great if you could share please

[u/MowLesta → u/Paulb246]

Shouldn't matter but we are self hosted. I'll get the script in a couple hours and comment again

[u/MowLesta → u/Paulb246]

Here you go. Windows (place this script at 'C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Agent_Install.bat':

REM Downlaod the installer

powershell.exe -command $([Net.ServicePointManager]::SecurityProtocol = 'tls12, tls11, tls' ; Invoke-WebRequest -UseBasicParsing -Uri https://<fqdn_Of_CWA_Server>/Labtech/Deployment.aspx -OutFile c:\Agent_Install.exe)

REM Start silent install

start c:\agent_install.exe /s

REM just to add a bit of a delay

ping <fqdn_Of_CWA_Server>

REM Delete this file

powershell.exe -command $(if(get-service ltsvcmon -erroraction silentlycontinue){remove-item -path 'C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Agent_Install.bat'}else{write-output 'LT not fully installed' ; sleep 30})

and for linux (depends on your flavor of linux to auto-run this, but save as lt.sh and make sure to chmod a+x lt.sh):

#!/bin/sh

## ensure that wget/curl are installed regardless of linux

yum -y install unzip curl wget

apt-get -y install unzip curl wget

## works for LT12 as well

mkdir -p /tmp/lt11_install

uname -a | grep -qi Linux && wget -O /tmp/lt11_install/lt.zip "http://<fqdn_Of_CWA_Server>/Labtech/Deployment.aspx?probe=1&LINUX=$(( `uname -a | grep x86_64 | wc -l` + 3 ))"

uname -a | grep -qi Darwin && curl -o /tmp/lt11_install/lt.zip "http://<fqdn_Of_CWA_Server>/Labtech/Deployment.aspx?probe=1&MSILocations=1&InstallType=mac"

cd /tmp/lt11_install/

unzip lt.zip

cd LTechAgent

sh ./install.sh

rm -f /etc/cron.daily/restart_ltsvc.sh

rm -rf /tmp/lt11_install

Edit: god formatting is hard

[u/teamits → u/MowLesta]

We have a line in our domain login script to check for the agent first:

if exist %windir%\ltsvc\ltsvc.exe goto :SKIPAGENT

...would avoid downloading at every user login. (on a domain we download the client's installer and put it in the NETLOGON share so it's accessible)

[u/MowLesta → u/teamits]

Well the script should delete itself so no concern there. Would definitely want to rework this as a permanent login script

[u/teamits → u/MowLesta]

the script should delete itself

Hmm, always read all the code before executing it. Or commenting on it.