TweetFollow Us on Twitter

MacEnterprise: Packaging for System Administrators

Volume Number: 25
Issue Number: 03
Column Tag: MacEnterprise

MacEnterprise: Packaging for System Administrators

Building Installer packages for software distribution

by Greg Neagle, MacEnterprise.org

Introduction

In an earlier MacTech article, we discussed reasons Mac OS X systems administrators might need to package or repackage software for deployment in their organization. Some common reasons are:

Repackaging into a format compatible with your distribution mechanism

Repackaging software that won't install "silently" (i.e., prompts the user for info, or launches GUI applications)

Capturing organization-specific changes (licensing, configuration) into a package

Packaging third-party software that is distributed without an Installer package

Packaging internally-developed software or tools

We mentioned several packaging tools, and detailed two repackaging examples using LANrev's InstallEase. The first example was using drag-and-drop to build a installer package for Firefox. The second example used filesystem snapshots to build a package for TextWrangler and its command-line tools.

More Packaging Tools

LANrev's InstallEase is a very easy to use packaging utility, as you might have seen from the earlier article. But it actually relies on other packaging tools to do the "heavy lifting." In order to actually create the final package, you must have either Apple's PackageMaker, or Stéphan Sudre's Iceberg installed. In the case of PackageMaker, InstallEase uses it behind the scenes, and so you never have to directly use PackageMaker if you do not want to. With Iceberg, you save an Iceberg project from InstallEase, and then open that project file with Iceberg to finish building the package.

Why move beyond InstallEase? With InstallEase, you have very little control over things like the package bundle ID (which you might want to use to identify your company), or settings like requiring a restart after install. There's no way to specify a custom read me, license agreement or other user interface settings. For automated installs, none of these features may matter, but for a package you intend to have end-users manually install, you may want more control.

PackageMaker

To gain that additional control, we'll look at PacakgeMaker, Apple's packaging utility. PackageMaker is available with Apple's Xcode developer tools, and also as part of the Server Administration Software. New in version 3 is the ability to find files to add to a package via "snapshot", or watching for file system changes. Let's quickly revisit our example of building a package for TextWrangler, this time using PackageMaker, and then look at some of PackageMaker's additional options.

If you haven't already, install PackageMaker by installing either Xcode 3 or the latest release of the Server Administration Tools from Apple. At the time of this writing, the URL for the Server Tools was:

http://www.apple.com/support/downloads/serveradmintools1055.html

Don't run the installer - PackageMaker is available in the Utilities folder on the disk image, ready to be dragged to your hard drive.

In order to play along at home with the example, also download the disk image for TextWrangler from:

http://www.barebones.com/products/textwrangler/download.html

and mount the image.

Getting Started

Open PackageMaker. You'll see an untitled project window, and a sheet asking for some basic info. Enter your organization identifier and choose a minimum OS target, as in Figure 1.


Figure 1. Specifying install properties

Creating a snapshot

We're going to use filesystem snapshots to build this package, so choose Add Snapshot Package... from the Project menu.


Figure 2. Adding a Snapshot Package

You'll have one last chance to get ready - if you haven't downloaded TextWrangler, do it now.


Figure 3. Starting the snapshot

Click Start to begin. Install TextWrangler from the disk image by dragging it to the Applications folder. To install the command-line tools, launch TextWrangler and agree when it asks if you want the current versions of edit and twdiff, authenticating as an administrator when asked. This, of course, is the reason we're building this package: we can then use our software distribution tool to install the TextWrangler application and its command-line tools without having to bother the user with the requests to install the command-line tools.

Once you are done with the install tasks, return to PackageMaker and click Stop.



Figures 4-5. Stopping the snapshot

Click Next to proceed.


Figure 6. Filtering snapshot items

You'll see a tree view of files and directories that were modified between the time you clicked Start and the time you clicked Stop. InstallEase has a configurable filter to ignore certain directories and files; PackageMaker does not, so you'll have a larger number of unwanted files and directories to wade through and uncheck. In the example shown in Figure 6, you'd want to uncheck /Applications/.DS_Store, and the entire tree under /Library, as these are not part of the actual install. The snapshot also captured several log files in /private/var/log, other items in my home directory, and more. You'll need to examine the list of captured items carefully and remove those that are not relevant to the installation. Give the snapshot a title and click Save.

Configuring the package


Figure 7. Package configuration

We can now start to customize the package. In the example shown in Figure 7, I've given it a title, and added a description.

Under Install Destination, you'll see three choices. In most cases, Volume selected by user is the best choice, especially if you will be using this package to install software on a non-booted volume, like when using the InstaDMG method of creating installation images. If you want non-admin users to be able to install the software, and it does not require anything to be installed in the System domain, you can check User home directory. This would be an unusual choice in most managed enterprise environments, though.

You can see the contents we captured with the snapshot in the left column under Contents. Turn the disclosure triangle down to see detail on the contents. See Figure 8 for an example.


Figure 8. Configuring the snapshot package

We can further customize the install under the Configuration tab for the snapshot contents. We can give the package an identifier and version, specify a restart action, and indicate if admin authentication is needed. This particular install does not need a restart, but you could choose to require a logout, recommend a restart, require a restart, or require a shutdown. (The only type of installation I can think of that would require a shutdown would be a firmware update that requires the user to hold down the power button on the subsequent startup.) Since this package installs items in /Applications, /usr/bin, and /usr/share/man, it will need admin authentication. Very few installation packages will not need admin authentication unless they install items in the user's home folder or in /Users/Shared, as these areas are modifiable by standard users.

Let's proceed to the Contents tab.


Figure 9. Editing the contents

In Figure 9, we can see all the items that will be installed. I've turned down several of the disclosure triangles so we can see more of the items. There are some changes that should be made. You'll see that the TextWrangler application is owned by gneagle. If we're going to install this on multiple machines, we'll want to change the ownership to root. We had to do the same thing when packaging with InstallEase, going through each file one-by-one and changing the ownership and permissions. PackageMaker has what might look like a handy shortcut: the Apply Recommendations button. If you were to click it, PackageMaker will go through all the items in your project, applying its recommended permissions and ownership. In my experience, the ownership and permissions it applies end up causing warnings later in the build process. It seems to just blindly set owner to root, group to admin, and permissions to 775 or 664. These are generally fine for things in /Applications, but cause warnings elsewhere in the filesystem - like in /usr/bin. So, sadly, you are probably better off fixing ownership and permissions manually.

If you discover you've accidentally included a file or directory you don't want installed, you can remove it from the contents by unchecking it in the contents list.

Next, we move to the Components tab.


Figure 10. Editing Component options

As shown in Figure 10, PackageMaker has identified the TextWrangler.app application bundle as a "component", and marked it as relocatable. This means that if after installation, a user with admin privileges moves the component somewhere else, that for future reinstalls or upgrades, Installer will search the disk for the component.

In most cases, for managed installs in an enterprise environment, I'd recommend that you disable this option. You as the OS X administrator know where you are going to install it and probably don't intend to move it around. Additionally, it slows down the install process as it scans the drive for the application, and there are some definite non-intuitive behaviors with this option in some configurations. It seems safest to turn this off unless you understand the implications and need the behavior.

The second checkbox, labeled Allow Downgrade, controls whether or not the Installer allows the user to install an older version of this component over a newer version. Most of the time, you would not want this, but if you are creating a package to downgrade an application because the newer version has problems in your environment, this might be a useful option.

We could also specify pre-installation and post-installation scripts to run at this point, but we don't need them for this project, so we'll leave the Scripts tab alone.

Editing the user interface

Let's look at an (optional) final task before building our package.

PackageMaker contains an interface editor to customize what the user sees when installing your package. If you are building packages that are to be installed silently in the background, you can safely ignore the user interface altogether. But if you are building packages you intend to be installed manually, you might want to customize the user interface.

Start by clicking the Edit Interface icon on the right side of the PackageMaker project window toolbar.


Figure 11. PackageMaker's Interface Editor

The Interface Editor will open, and will look like Figure 11. Here you can customize the background image and the Introduction, Read Me, License, and Finish Up messages, including adding localizations for languages other than English. Feel free to play with the various options. Once you are happy with your edits, close the editor and save the project.

Building the package

Now for the moment you've all been waiting for: building the actual package. If you haven't done so already, save the project. Click the Build icon in the project window toolbar. Give the package a name, choose a location, and click Save. You should see a progress indicator for a minute or less, and then something like Figure 12.


Figure 12. Build results

Though my build succeeded, there's one warning. I've turned down the disclosure triangle to read the warning, and I can click on the magnifying glass to be taken to where I can fix it.


Figure 13. "Spotlight"-style focus on the problem

In Figure 13, you can see that PackageMaker highlights the relevant control ala Spotlight in System Preferences. In this case, I needed to enter the destination - "/". Build again, and the warning should be gone.

If you wish, you can now open the built package in Installer and test it.

Wrap-up

This was a fairly typical example of building a simple Installer package. We took some third-party software that is distributed in a non-Apple Installer package format and did some post-install configuration tasks. We then used Apple's PackageMaker to capture the installed and modified files and build an Installer package. This example only scratches the surface of the many capabilities of PackageMaker. PackageMaker can build metapackages, new Leopard-style flat packages, and more. You can specify install requirements (like minimum available disk space, CPU type and speed), and optional installs, like user guides.

Though PackageMaker is a full-featured, powerful packaging tool, it also has some non-trivial issues. A key issue, in my experience and in the experience of other OS X systems administrators, is that PackageMaker has a hard time creating packages that have a large number of items. Many admins have seen PackageMaker crash or become unresponsive when trying to repackage Microsoft Office or the Adobe Creative Suite applications. This problem also occurs with the command-line version of PackageMaker, so other tools that build on or rely on PackageMaker will almost certainly have the same issue.

Workarounds for this issue include breaking the install into smaller packages that are then part of a metapackage, or using another tool like Iceberg. An attempted repackaging of Microsoft Office 2008 that failed for me using PackageMaker, both via the GUI and the command line, was successful using Iceberg.

A OS X administrator may need a variety of packaging tools at his or her disposal, since they all have their strengths and weaknesses. The good news is that you can get your feet wet with simpler tools, and as you need more capabilities, use heavier-duty (and more complicated) tools.


Greg Neagle is a member of the steering committee of the Mac OS X Enterprise Project (macenterprise.org) and is a senior systems engineer at a large animation studio. Greg has been working with the Mac since 1984, and with OS X since its release. He can be reached at gregneagle@mac.com.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

BBEdit 11.1.1 - Powerful text and HTML e...
BBEdit is the leading professional HTML and text editor for the Mac. Specifically crafted in response to the needs of Web authors and software developers, this award-winning product provides a... Read more
CrossOver 14.1.3 - Run Windows apps on y...
CrossOver can get your Windows productivity applications and PC games up and running on your Mac quickly and easily. CrossOver runs the Windows software that you need on Mac at home, in the office,... Read more
Little Snitch 3.5.3 - Alerts you about o...
Little Snitch gives you control over your private outgoing data. Track background activity As soon as your computer connects to the Internet, applications often have permission to send any... Read more
OmniGraffle Pro 6.2.3 - Create diagrams,...
OmniGraffle Pro helps you draw beautiful diagrams, family trees, flow charts, org charts, layouts, and (mathematically speaking) any other directed or non-directed graphs. We've had people use... Read more
OmniFocus 2.2 - GTD task manager with iO...
OmniFocus helps you manage your tasks the way that you want, freeing you to focus your attention on the things that matter to you most. Capturing tasks and ideas is always a keyboard shortcut away in... Read more
Cocktail 8.4 - General maintenance and o...
Cocktail is a general purpose utility for OS X that lets you clean, repair and optimize your Mac. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get... Read more
PDFKey Pro 4.3 - Edit and print password...
PDFKey Pro can unlock PDF documents protected for printing and copying when you've forgotten your password. It can now also protect your PDF files with a password to prevent unauthorized access and/... Read more
Kodi 15.0.beta1 - Powerful media center...
Kodi (was XBMC) is an award-winning free and open-source (GPL) software media player and entertainment hub that can be installed on Linux, OS X, Windows, iOS, and Android, featuring a 10-foot user... Read more
DiskCatalogMaker 6.4.12 - Catalog your d...
DiskCatalogMaker is a simple disk management tool which catalogs disks. Simple, light-weight, and fast. Finder-like intuitive look and feel. Super-fast search algorithm. Can compress catalog data... Read more
Macs Fan Control 1.3.0.0 - Monitor and c...
Macs Fan Control allows you to monitor and control almost any aspect of your computer's fans, with support for controlling fan speed, temperature sensors pane, menu-bar icon, and autostart with... Read more

Moleskine Timepage – Calendar for iCloud...
Moleskine Timepage – Calendar for iCloud, Google & Exchange 1.0 Device: iOS iPhone Category: Productivity Price: $4.99, Version: 1.0 (iTunes) Description: The most elegant calendar for your pocket and wrist, Timepage is a... | Read more »
QuizUp Gets Social in its New Update
Plain Vanilla Corp has released a new and improved version of their popular trivia game, QuizUp. The app now emphasizes social play so you can challenge friends from all over the world. [Read more] | Read more »
The Deep (Games)
The Deep 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Swipe Controls Delve into the deep in this retro rogue-like! Swipe to move your diver around and keep away from the enemies as you... | Read more »
Battle of Gods: Ascension (Games)
Battle of Gods: Ascension 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: TURN-BASED TACTICAL COMBATFight tactical battles against the forces of Hades! In Battle of Gods: Ascension you play... | Read more »
Shadowmatic's Latest Update Adds a...
Shadowmatic's shadowy shadow-ness is getting a little shadowy-er thanks to a recent update that adds an Arcade Mode. [Read more] | Read more »
Sunrise Calendar and Slack Have Assimila...
Wunderlist is perhaps one of the most populat and beloved productivity apps on the App Store - and now it's gone and incorporated itself into other useful services like Sunrise Calendar and Slack. [Read more] | Read more »
Crossy Road Devs Hipster Whale are Bring...
Hipster Whale, the minds behind the rather popular (and rather great) Crossy Road, have teamed-up with Bandai Namco to create PAC-MAN 256: an absolutely bonkers looking maze runner chaser thing. | Read more »
Meet the New Spotify Music
Spotify Music  has a lot going on. They're introducing 3 new modes to serve all your musical needs, with the "Now" start page  gives you curated playlists based on your particular tastes. As you listen the app will learn more about your tastes and... | Read more »
What the Apple Watch Gets Right, and Wha...
| Read more »
Celebrate PAC-MAN's 35th Birthday W...
BANDAI NAMCO Entertainment America is celebrating PAC-MAN's 35th anniversary by releasing updates for PAC-MAN and PAC-MAN Lite for iOS. [Read more] | Read more »

Price Scanner via MacPrices.net

Apple refurbished 2014 13-inch Retina MacBook...
The Apple Store has Apple Certified Refurbished 2014 13″ Retina MacBook Pros available for up to $400 off original MSRP, starting at $979. An Apple one-year warranty is included with each model, and... Read more
What Would the ideal Apple Productivity Platf...
For the past four years I’ve kept a foot in both the Mac and iPad camps respectively. my daily computing hours divided about 50/50 between the two devices with remarkable consistency. However, there’... Read more
PageMeUp 1.2.1 Ten Dollar Page Layout Applica...
Paris, France-based Softobe, an OS X software development company, has announced that their PageMeUp v. 1.2.1, is available on the Mac App Store for $9.99. The license can be installed on up to 5... Read more
Eight New Products For USB Type-C Application...
Fresco Logic, specialists in advanced connectivity technologies and ICs, has introduced two new product families targeting the Type-C connector recently introduced across a number of consumer... Read more
Scripps National Spelling Bee Launches Buzzwo...
Scripps National Spelling Bee fans can monitor the action at the 2015 Spelling Bee with the new Buzzworthy app for iOS, Android and Windows mobile devices. The free Buzzworthy app provides friendly... Read more
13-inch 2.5GHz MacBook Pro on sale for $120 o...
B&H Photo has the 13″ 2.5GHz MacBook Pro on sale for $979 including free shipping plus NY sales tax only. Their price is $120 off MSRP, and it’s the lowest price for this model (except for Apple’... Read more
27-inch 3.3GHz 5K iMac on sale for $1899, $10...
B&H Photo has the new 27″ 3.3GHz 5K iMac on sale for $1899.99 including free shipping plus NY tax only. Their price is $100 off MSRP. Read more
Save up to $50 on iPad Air 2, NY tax only, fr...
B&H Photo has iPad Air 2s on sale for up to $50 off MSRP including free shipping plus NY sales tax only: - 16GB iPad Air 2 WiFi: $469 $30 off - 64GB iPad Air 2 WiFi: $549.99 $50 off - 128GB iPad... Read more
Updated Mac Price Trackers
We’ve updated our Mac Price Trackers with the latest information on prices, bundles, and availability on systems from Apple’s authorized internet/catalog resellers: - 15″ MacBook Pros - 13″ MacBook... Read more
New 13-inch 2.9GHz Retina MacBook Pro on sale...
B&H Photo has the 13″ 2.9GHz/512GB Retina MacBook Pro on sale for $1699.99 including free shipping plus NY tax only. Their price is $100 off MSRP, and it’s the lowest price for this model from... Read more

Jobs Board

*Apple* Solutions Consultant - Retail Sales...
**Job Summary** As an Apple Solutions Consultant (ASC) you are the link between our customers and our products. Your role is to drive the Apple business in a retail Read more
*Apple* Watch SW Application Project Manager...
**Job Summary** The Apple Watch software team is looking for an Application Engineering Project Manager to work on new projects for Apple . The successful candidate Read more
Engineering Manager for *Apple* Maps on the...
…the Maps App Team get to take part in just about any new feature in Apple Maps, often contributing a majority of the feature work. In our day-to-day engineering work, we Read more
Senior Software Engineer - *Apple* SIM - Ap...
Changing the world is all in a day039s work at Apple . If you love innovation, here039s your chance to make a career of it. You039ll work hard. But the job comes with Read more
Lead *Apple* Solutions Consultant - Retail...
**Job Summary** Job Summary The Lead ASC is an Apple employee who serves as the Apple business manager and influencer in a hyper-business critical Reseller's store Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.