Failed to mount the downloaded dmg

[ofakilede]

Hello, 

I am trying to run my Office 365 download through Jamf Pro and I am getting the following errors:

[STEP 1 of 4]

Executing Policy Installing Microsoft Office

[STEP 2 of 4]

Running script install_pkg.sh...

Script exit code: 4

Script result: https://go.microsoft.com/fwlink/?linkid=XXXXXXX Download URL: https://go.microsoft.com/fwlink/?linkid=XXXXXXX Downloading the installation files... hdiutil: attach failed - image not recognized Failed to mount the downloaded dmg; exiting. Cleaning up installation files...

Error running script: return code was 4.

[STEP 3 of 4]

[STEP 4 of 4]

[jtrant]

What exactly is your script doing? Is there a reason you don't download the installer package from https://macadmins.software and upload directly to your Jamf Pro server for distribution, or use Installomator?

[ofakilede]

The script is supposed to download Microsoft office automatically from from Jamf pro. Here is the whole package file:

#!/bin/bash

downloadURL="$4"

useCommandToGetDownloadURL="$5"    # "true" or empty

uuid=$(/usr/bin/uuidgen)

workDir="/private/tmp/$uuid"

function clean_up () {

    echo "Cleaning up installation files..."

    /usr/bin/hdiutil unmount "$device" -force &> /dev/null

    /bin/rm -Rf "$workDir"

    /bin/ps -p "$caffeinatePID" > /dev/null && /bin/kill "$caffeinatePID"; wait "$caffeinatePID" 2>/dev/null

}

# Clean up our temporary files upon exiting at any time

trap "clean_up" EXIT

#Check is an old version is there and remove it if it exists

if [ -d "/Applications/OpenVPN Connect.app/" ]; then

echo "Removing Old Version"

'/Applications/OpenVPN/Uninstall OpenVPN Connect.app/Contents/Resources/remove.sh'

fi

# Determine if we are calculating the URL or just using a static url

if [[ "$useCommandToGetDownloadURL" == "true" ]]; then

    echo "Calculating Download URL from command."

    downloadURL="$(eval "$4")"

fi

echo $5

# Exit if our download url is empty

if [[ -z "$downloadURL" ]]; then

echo "Please specify a URL (parameter 4)."

exit 1

fi

echo $downloadURL

# Caffeinate the Mac so it does not sleep

/usr/bin/caffeinate -d -i -m -u &

caffeinatePID=$!

# Make our working directory with our unique UUID generated in the variables section

/bin/mkdir -p "$workDir"

# Print the download url to help with troubleshooting

echo "Download URL: $downloadURL"

# Exit if there was an error with the curl

echo "Downloading the installation files..."

if ! /usr/bin/curl -s -L -f "$downloadURL" -o "$workDir/installMedium.dmg" ; then

    echo "Error while downloading the installation files; exiting."

    exit 2

fi

# If no DMG was found in the install files, bail out

if [[ ! -e "$workDir/installMedium.dmg" ]]; then

    echo "Failed to download the installation files; exiting."

    exit 3

fi

# Mount the DMG, and save its device

device=$(/usr/bin/hdiutil attach -noautoopen -nobrowse "$workDir/installMedium.dmg" | /usr/bin/grep "/Volumes" | /usr/bin/awk '{ print $1 }')

if [[ -z "$device" ]]; then

    echo "Failed to mount the downloaded dmg; exiting."

    exit 4

fi

# Using the device, determine the mount point

mountPoint=$(/usr/bin/hdiutil info | /usr/bin/grep "^$device" | /usr/bin/cut -f 3)

# Find the pkg inside the DMG

package=$(find "$mountPoint" -type f -iname "*.pkg" -maxdepth 1)

# If no app was found in the dmg, bail out

if [[ -z "$package" ]]; then

    echo "Failed to find pkg in downloaded installation files; exiting."

    exit 5

fi

if ! installer -pkg "$package" -target / ; then

    echo "Failed to install the pkg; exiting."

    exit 6

fi

exit 0

[mschlosser]

i've used this script for years, has always worked well to download and install office.

hope that helps.

<code>

#!/bin/bash

#Caffeinate to disable sleep
echo "Status: Disabling sleep on your Mac while we do some things."
caffeinate -d -i -m -u &
caffeinatepid=$!

/usr/bin/curl -JL "https://go.microsoft.com/fwlink/?linkid=525133" -o /tmp/Office_2019_Latest.pkg

installer -pkg /tmp/Office_2019_Latest.pkg -target /

rm -f /tmp/Office_2019_Latest.pkg

kill "$caffeinatepid"

exit 0

</code>

[ofakilede]

Yeah this seems to work.

[jamf-42]

while some orgs allow a external pull for a pkg, its not something I would recommend. 

Either use JAMF Mac Apps if cloud and that works for you

Or

Download the pkg from Mac Admins and scope that pkg as required. 

https://macadmins.software/

[AJPinto]

The issue is likely with your script. Can you share it?

[ofakilede]

#!/bin/bash

downloadURL="$4"
useCommandToGetDownloadURL="$5" # "true" or empty
uuid=$(/usr/bin/uuidgen)
workDir="/private/tmp/$uuid"

function clean_up () {
echo "Cleaning up installation files..."
/usr/bin/hdiutil unmount "$device" -force &> /dev/null
/bin/rm -Rf "$workDir"
/bin/ps -p "$caffeinatePID" > /dev/null && /bin/kill "$caffeinatePID"; wait "$caffeinatePID" 2>/dev/null
}

# Clean up our temporary files upon exiting at any time
trap "clean_up" EXIT

#Check is an old version is there and remove it if it exists
if [ -d "/Applications/OpenVPN Connect.app/" ]; then
echo "Removing Old Version"
'/Applications/OpenVPN/Uninstall OpenVPN Connect.app/Contents/Resources/remove.sh'
fi

# Determine if we are calculating the URL or just using a static url
if [[ "$useCommandToGetDownloadURL" == "true" ]]; then
echo "Calculating Download URL from command."
downloadURL="$(eval "$4")"
fi

echo $5

# Exit if our download url is empty
if [[ -z "$downloadURL" ]]; then
echo "Please specify a URL (parameter 4)."
exit 1
fi

echo $downloadURL

# Caffeinate the Mac so it does not sleep
/usr/bin/caffeinate -d -i -m -u &
caffeinatePID=$!

# Make our working directory with our unique UUID generated in the variables section
/bin/mkdir -p "$workDir"

# Print the download url to help with troubleshooting
echo "Download URL: $downloadURL"

# Exit if there was an error with the curl
echo "Downloading the installation files..."
if ! /usr/bin/curl -s -L -f "$downloadURL" -o "$workDir/installMedium.dmg" ; then
echo "Error while downloading the installation files; exiting."
exit 2
fi

# If no DMG was found in the install files, bail out
if [[ ! -e "$workDir/installMedium.dmg" ]]; then
echo "Failed to download the installation files; exiting."
exit 3
fi

# Mount the DMG, and save its device
device=$(/usr/bin/hdiutil attach -noautoopen -nobrowse "$workDir/installMedium.dmg" | /usr/bin/grep "/Volumes" | /usr/bin/awk '{ print $1 }')
if [[ -z "$device" ]]; then
echo "Failed to mount the downloaded dmg; exiting."
exit 4
fi

# Using the device, determine the mount point
mountPoint=$(/usr/bin/hdiutil info | /usr/bin/grep "^$device" | /usr/bin/cut -f 3)

# Find the pkg inside the DMG
package=$(find "$mountPoint" -type f -iname "*.pkg" -maxdepth 1)

# If no app was found in the dmg, bail out
if [[ -z "$package" ]]; then
echo "Failed to find pkg in downloaded installation files; exiting."
exit 5
fi

if ! installer -pkg "$package" -target / ; then
echo "Failed to install the pkg; exiting."
exit 6
fi

exit 0

[jtrant]

I would highly recommend packaging Office and deploying, or using VPP. DNS poisoning can easily happen and there is no code signature validation happening in this script.

[Ashok_A]

@ofakilede Are you sure that you do not have any restrictions applied via Jamf Configuration Profile Restriction Payload to disallow the Disk Images?