Force Absolute Manage agent to install packages without delay.

kickstartam.sh

#!/bin/bash
#
# Force Absolute Manage to install software at the login window.


declare -r AMSERVER="your.amserver.example"
declare -r AMDIR="/Library/Application Support/LANrev Agent"
declare -r AMAGENT="$AMDIR/LANrev Agent.app/Contents/MacOS/LANrev Agent"
declare -r LOGFILE="/var/log/kickstartam.log"


# Redirect stdout and stderr to a log file with date stamps.
exec > >(perl -MPOSIX -pe \
            '$| = 1; print POSIX::strftime("%F %T", localtime), " amloginwindow: ";' \
            >> "$LOGFILE") 2>&1


# Wait until a path exists.
function wait_for_path() {
    local path="$1"
    
    while [[ ! -e "$path" ]]; do
        sleep 10
    done
}

# Wait for ping reply from server.
function wait_for_ping() {
    local server="$1"
    
    echo "Waiting for $server to respond"
    while ! ping -q -c 1 "$server" &>/dev/null; do
        sleep 1
    done
}

# Wait until the AM agent's status is idle.
function wait_amagent_idle() {
    local status
    local sdstate=""
    local newstate
    
    while true; do
        amstatus=$( "$AMAGENT" --GetSDState 2>/dev/null )
        returncode=$?
        if [[ "$returncode" -eq 0 ]]; then
            if [[ "$amstatus" -eq 0 ]]; then
                break
            else
                newstate=$( "$AMAGENT" --GetSDStateString 2>/dev/null )
                if [[ "$newstate" != "$sdstate" ]]; then
                    sdstate="$newstate"
                    echo "$sdstate"
                fi
            fi
        fi
        sleep 5
    done
}

# Send inventory.
function am_send_inventory() {
    wait_amagent_idle
    echo "Sending inventory"
    "$AMAGENT" --SendInventory 2>/dev/null
    sleep 5
}

# Perform software distribution check.
function am_sdcheck() {
    wait_amagent_idle
    echo "Checking software distribution"
    "$AMAGENT" --SDCheck 2>/dev/null
    sleep 5
}


function main() {
    local name
    local datestamp
    local i
    
    name=$( scutil --get ComputerName 2>/dev/null || echo '<no name>' )
    datestamp=$( date +'%F %T' )
    echo "* Absolute Manage kickstart for $name ($datestamp)"
    
    sleep 5
    
    wait_for_path "$AMAGENT"
    wait_for_ping "$AMSERVER"
    for i in 1 2; do
        am_send_inventory
        am_sdcheck
    done
    
    datestamp=$( date +'%F %T' )
    echo "* Kickstart done ($datestamp)"
}

main "$@"

se.gu.it.kickstartam.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Label</key>
	<string>se.gu.it.kickstartam</string>
	<key>ProgramArguments</key>
	<array>
		<string>/Library/Scripts/DAFGU/kickstartam.sh</string>
	</array>
	<key>RunAtLoad</key>
	<true/>
</dict>
</plist>

Sorry for the late reply, I don't think GitHub sent me a notification when you posted.

The reason for checking the return code is that in some situations the agent just returns -1 and an error message that it can't connect to the message port.