Installing Snow Leopard: What You Need to Know

CIO Magazine ^ | 08/28/2009 | Dan Frakes

[Swordmaker]

With Snow Leopard, Apple has streamlined and simplified the process of installing Mac OS X. While older versions of OS X made you decide what kind of installation you wanted to perform before you even specified what to install, Snow Leopard's installer gives you a single installation path. It's considerably easier.

Gone, for example, is the old Clean Install option--which moved your existing OS and system add-ons to a Previous Systems folder and installed a fresh copy of the OS, requiring a good amount of tweaking and transferring of files afterward. Instead, Snow Leopard provides a more intelligent installation process that makes such tweaking largely unnecessary. The Erase and Install option is now gone, too (at least as a discrete Installer alternative; see "Simple steps, easy decisions," below).

What you need

According to Apple, your Mac must meet the following minimum requirements to install Snow Leopard:

• Intel processor
• DVD drive (or Leopard's Remote Disc feature)
• 1GB RAM
• A built-in display or a display connected to your Mac's stock video card
• 5GB free hard-drive space (7GB if you plan to install the Snow Leopard developer tools)

While these are the official requirements, I recommend 2GB RAM and at least 10GB of free hard-drive space for a much better experience (both during installation and afterward). Before you begin installing, it's also worth checking to see if your Mac requires any firmware updates; Apple offers a support article with more details. Similarly, if you've installed an aftermarket video card in your Mac, be sure to check with the card's vendor to see if there are new Snow Leopard-compatible drivers you need to download and install.

Let me also suggest that a major OS upgrade is the perfect chance to check your drives for problems, clean house, and check for updates for your frequently used software. (Don't forget to check for new versions of preference panes and other add-ons that run in the background.) Finally, as with any major software update or upgrade, you should be sure to back up before installing Snow Leopard.

Simple steps, easy decisions

When you insert the Snow Leopard DVD in your Mac and double-click the Install Mac OS X icon, you aren't immediately prompted to restart as you have been with previous installers. Instead, you get to choose your install options immediately: just click Continue, accept the license agreement, and you're taken to the options screen.

(The exception to the steps just mentioned is if you want to check, repair, or erase your hard drive, or use other utilities, while booted from the Install DVD. If so, click the Utilities button and follow the instructions to boot off of the Install DVD. For example, to erase the hard drive before installing, choose Utilities -> Disk Utility from the first Installer screen after rebooting, and then manually erase the drive; you can then exit Disk Utility and proceed with installation. For more on why you might want to choose this route, see "Why Erase and Install?" below.)

On the Installer's second screen, choose the disk on which to install Snow Leopard; if you have only one disk, it's selected by default. Next, click Customize to access a slew of available installation options:

Printer Support Snow Leopard makes choosing which printer software to install much easier than previous installers did. For starters, the installer automatically figures out what printer models you've previously used and installs drivers for them. By default, it also installs drivers for printers it detects on your local network, as well as for printers Apple deems "popular"--commonly owned printers from major manufacturers.

With this collection of drivers installed, chances are you'll be able to use any printer you come across. If you move around a lot and regularly use many "new" printers, you can check the box for All Available Printers, which installs every printer driver on the OS X DVD (see this Apple support article for details). But that may not be necessary, as Snow Leopard can download and install printer drivers on the fly (more on this feature in moment).

Additional Fonts This option installs fonts for Chinese, Korean, Arabic, Hebrew, Thai, Cyrillic, Devanagari, Gujarati, Punjabi, Tibetan, Armenian, Cherokee, and Inuktitut. While you can't choose a subset of these fonts, the whole package is small enough--somewhere between 40MB and 120MB, depending on which fonts you already have on your drive--that there's little downside to installing them all. In fact, by doing so, you gain a number of specialty fonts that could be useful even if you don't speak any of these languages.

Language Translations This option installs support files that let you use Mac OS X--in other words, view menus, dialog boxes, and other OS-related text--in other languages. Though enabled by default, you can disable it to save a few hundred megabytes. You can also opt out of specific language translations; click the disclosure triangle to reveal the individual languages, and then check only the languages you think you'll actually use.

X11 X11 is a windowing system used by some Unix software to provide a graphical user interface under Mac OS X. If you use X11, chances are you'll know it. On the other hand, at approximately 64MB, it's worth installing just in case you ever come across an app that needs it.

Rosetta Disabled by default, Rosetta is the behind-the-scenes program that lets you run many PowerPC applications on Intel Macs. If there's a chance you have older Mac software that never made the jump to Intel code, you should install Rosetta--although, as with printer drivers, Snow Leopard is forgiving here (see below).

QuickTime 7 Snow Leopard includes a new version of QuickTime that claims to offer many improvements over QuickTime 7. However, the new version may not support some older media formats that QuickTime 7 handled with aplomb (see this Apple support document for details). Check this option to install QuickTime 7 for backward compatibility. If your Mac has an active license for QuickTime Pro 7, this option will be enabled by default.

Even though you have all these options to consider, don't spend too much time worrying about what to install: unlike Leopard and earlier OS versions, Snow Leopard can automatically download and install some software on demand. For example, if you didn't chose the All Available Printers option and you later try to use a printer that's not supported by your original installation of drivers, OS X will connect to the Internet and download drivers as needed. Similarly, if you didn't install Rosetta or QuickTime 7, and you later try to open a program or media file that requires that software, OS X will offer to download and install it on the fly (assuming you have an Internet connection, of course).

In addition, if you forget to install something the first time, or if you're having problems with an application and you want to get a fresh copy, you can easily install it from the Snow Leopard DVD by double-clicking on the Optional Installs.mpkg package inside the Optional Installs folder. After the installer launches and checks your drive for Snow Leopard, you can choose to install Rosetta, QuickTime 7, additional fonts, printer drivers, language support, iPod support files, X11, or any of the stock OS X apps (Address Book, iCal, iChat, iTunes, Mail, Dictionary, or Safari).

After choosing your options, click OK and then click Install, verify that you want to install, and enter an admin-level username and password. The installation will begin immediately--the computer doesn't need to restart first. If you're using a Bluetooth mouse or keyboard, you may have to re-pair it at some point, but otherwise, the next interaction you have with your Mac should be when it reboots with Snow Leopard successfully installed.

If you've set up your Mac to be able to boot into Windows via Boot Camp, you'll need to update the Windows drivers using the Snow Leopard DVD. Be sure to boot into Windows, insert the Snow Leopard DVD, and follow the instructions to update those drivers.

Faster and smaller

Apple claims that the Snow Leopard installation process is "up to 1.45x faster" than Leopard's. Indeed, installing Snow Leopard on a 2009 Mac mini took just under 29 minutes from the time I provided my username and password to the post-install restart--noticeably faster than installing Leopard on the same machine. (Restarting was faster, as well: the initial restart after installation, which is usually the slowest type of restart, took just over one minute.)

Apple also claims that installing Snow Leopard on a Mac running Leopard will free up "about 6GB" of hard-drive space, but you'll see this gain only if you installed a full version of Leopard, including all printer drivers. My testing on a 2009 MacBook Air that had only a subset of Leopard's printer drivers installed showed more modest gains: just under 2GB of "new" free space.

Smarter installs

One of the other big changes the Snow Leopard installer brings is that it's much smarter about ferreting out possible software conflicts than previous OS X installers. For example, the installer disables most input managers, kernel extensions, mail plug-ins, and system hacks that are incompatible with Snow Leopard or are known to cause problems.

Some of these items, such as input managers and contextual-menu plug-ins, remain in place but aren't loaded, because Snow Leopard no longer supports the mechanism by which they function. (For the most part; we'll have more on this soon.) However, others--incompatible kernel extensions, for example--are actively relocated. If you have any such items installed, you'll see a dialog box, near the end of the Snow Leopard installation and setup process, alerting you to that fact. The dialog box will also tell you that these files have been moved to a new folder called Incompatible Software at the root of your hard drive. (See Apple's Knowledge Base article about software that's incompatible with Snow Leopard.) You'll obviously lose the functionality provided by these add-ons until their developers update them for Snow Leopard, but you should see fewer problems due to outdated and incompatible code.

How does the installer know what files to move? According to Macworld senior contributor Joe Kissell, author of Take Control of Upgrading to Snow Leopard, the installer has a built-in list of incompatible software, and if you have an active Internet connection, the installer even checks Apple's servers for updates to the list at the time of installation.

The Snow Leopard installer is also smarter about interruptions. If your Mac loses power or if an installation is otherwise interrupted, you can simply start over without having to worry that your drive or the OS has been been left in a nonfunctional state; installation will pick up where it left off.

Remote Disk

Snow Leopard is the first only-on-disc upgrade to Mac OS X since the MacBook Air debuted. For many MacBook Air owners, this means Snow Leopard marks their first use of Remote Disc, Apple's technology for installing software on one Mac using the optical drive of another. Remote Disc isn't limited to the MacBook Air, however; you can use the feature to install Snow Leopard on any Mac currently running Mac OS X 10.4.10 or later. Here's how:

First, make sure both Macs are on, awake, and connected to your local network. On the computer sharing the Snow Leopard disc (this computer must be running OS X 10.4.10 or later, as well), open the Sharing pane of System Preferences and enable DVD Or CD Sharing. (If the hosting computer is running OS X 10.4.10 through 10.5.2, you'll first need to install DVD Sharing on it.)

Next, on the computer on which you're installing Leopard, open a new Finder window and select Remote Disk in the sidebar; the computer sharing the disc should appear to the right. Double-click the computer sharing the disc; you'll see a Connected message, and the Mac OS X Install DVD will appear. (If the computer sharing the disc has the Ask Me Before Allowing Others To Use My DVD Drive option enabled, you'll see an Ask To Use button; click it and, once the request is approved, you'll see the Connected message.) Double-click the Install DVD icon, and then double-click the Install Mac OS X icon that appears.

From this point, the installation should proceed as described above, albeit more slowly: installing Snow Leopard onto a 2009 MacBook Air from a 2009 Mac Mini over an 802.11n network--with the Nearby And Popular Printers, Additional Fonts, X11, Rosetta, and QuickTime 7 options enabled, and Language Translations disabled--took just over 56 minutes.

Why Erase and Install?

If the new installer is so good, why would you want to erase your drive first--a process equivalent to the old Erase and Install option?

The most obvious reason is if the standard installation procedure produced problems; an Erase and Install, followed by a restoration of your data from backup, could solve those problems. You might also want to consider this approach if your Mac has been acting buggy under Leopard and you suspect you may have some hard-drive or directory corruption; erasing the drive before installing Snow Leopard could fix such problems.

After installing Snow Leopard this way, you'll be asked if you want to transfer applications and data from your backup. If you choose to restore everything, you'll end up essentially where you would have been if you'd used the standard install procedure. (Under Leopard and earlier installers, using Erase and Install and then restoring your data using Migration Assistant would often fail to transfer over all your data; specifically, some settings and add-ons would be left behind.)

Two versions

The $29 retail Snow Leopard upgrade disc--as well as the $10 upgrade disc available to people who purchased a Mac on or after June 8, 2009--is for users who already have a license for Leopard (OS X 10.5). Apple says those with Intel Macs running Tiger (OS X 10.4) must buy the $169 Mac Box Set, which includes a full version of Snow Leopard bundled with the latest versions of iLife and iWork.

However, the Snow Leopard upgrade DVD does not require that you have Leopard installed; it's a full install disc that works on any Intel Mac. Similarly, as with every version of Mac OS X, Snow Leopard does not require activation or a registration code; Apple continues to rely on the honor system. This is great for Leopard users, as it makes it much easier to install Snow Leopard on your Mac without having to jump through hoops; for example, if you decide to erase your hard drive before installing Snow Leopard, you don't have to first install Leopard.

Install away?

Snow Leopard appears to be the easiest, and smartest, Mac OS X install yet. Just be sure to perform a full backup beforehand; as long as you have that, you should be set.

[antiRepublicrat]

Apple’s problem is that they don’t sell a home computer with your specs. At most you get a dual-core iMac, then the next step up is the workstation systems loaded with Xeon processors. It would be nice if Apple started offering quad-core iMacs, or didn’t have their consumer desktop (the mini) be only low-power.

[amigatec]

I am sad I can’t install it, I have a G5. :(

[Big Giant Head]

How much is having 4 hard drive bays worth? How much is the design of the internals of the computer for easy expansion of everything worth? In a quantifiable cost, how much is an aircraft grade aluminum case worth?

4 HD bays? sitting empty? Not much. Design of the internals for expansion? Aluminum case? I wouldn't give a hoot if it were made of plexiglass. I'm concerned with getting the most performance per dollar available. I only use one hard drive.

The iMac you keep mentioning is a Core 2 duo. I'm comparing quadcore machines. I have a 22" monitor. What is my performance per dollar ration when I have to buy an extra screen? Maybe I'm not being clear. A Mac quad core machine with similar specs as my HP quadcore machine is well over five times the money. I don't even care what it's built out of. My computer sits behind my monitor, I don't care what it looks like. When I go to expand on the machine, it will be maybe a GPU upgrade, maybe a CPU upgrade and a PSU upgrade. Beyond that, I'll buy a new machine.

If I can afford $3400 for a computer, I can buy a MAJOR LEAGUE PC. Performance that would swamp a similar dollar Mac.

If we compare hardware, PC's win per dollar. IF we compare dollars, PC'S win per performance.

As much as I'd love to have a MAC, there simply isn't the mission in my life for a MAC that will make the money math work.

[Big Giant Head]

I agree. There’s plenty of market space for a lower dollar, high performance Mac. They drop the price, and I”m there. Currently it makes no sense for me.

[antiRepublicrat]

I agree. There’s plenty of market space for a lower dollar, high performance Mac.

There isn't a market for that from Apple. Apple needs to keep the quality and support up, and that costs money. What I meant is that either the top iMac should be quad-core or they should make a larger mini, maybe another Cube, that is the higher-performance consumer desktop. Then ditch the single-processor Mac Pro, it doesn't make much sense and isn't a great value anyway (the dual-processor Mac Pros are a good value even for the performance-only crowd).

[antiRepublicrat]

If I can afford $3400 for a computer, I can buy a MAJOR LEAGUE PC.

You seem to like HP. An HP Z600 workstation configured close to the top-end base configuration for a Mac Pro (dual 2.26 GHz Xeon) costs $3,386. The Mac Pro costs $3,299. At that price the Mac also has a bigger hard drive, a power supply with over double the capacity, and the ability to take 50% more RAM. It also comes with Bluetooth and dual independent gigabit Ethernet, which the HP doesn't, and the base Quadro graphics on the HP are actually cheaper than the base GeForce on the Mac Pro.

Looks like if you have that kind of money your best bet is a Mac purely on power/performance. HP even charges $780 more to upgrade to 2.93 GHz than Apple does.

[Big Giant Head]

I don’t have that kind of money. That’s why I look for performance per dollar spent. I would no sooner buy that Z600 than I would a Mac.

Performance/dollar ratio. Am I clear?

I say that if I had that kind of money in a rhetorical sense. I could put together a whole lot more computer than that Z600 or a Mac for less money.

But I’m not going to ever spend that kind of money on a computer. Am I clear?

Macs are simply overpriced. That HP z600 is too. I wouldn’t buy either. Is that clear?

[conservatism_IS_compassion]

I think it is a mistake for Apple to insist that the only population who will buy thier OS, are those who are heavily invested in their hardware.

I think the fallacy lies in the fact that Apple takes no responsibility for making OS X run on any other chip sets/motherboards than Apple itself makes. The Windows model implies Microsoft responsibility for working on every manufactured PC.

The Apple approach is to take 100% responsibility for the system - and make sure that every one of their limited array of configurations works. "Oh, that's a hardware problem" is a non-sequitur in the Mac world.

[Hodar]

This is true; however today the standards for bus communications (PCI, USB, Hyper-Transport, PCI-X, ect) are very well defined. Gone are the days of semi-random IRQ selection, seemingly random DOS memory allocations, and the dirty secret language differences between Compliant and Compatible.

Way back when, Mac embedded QuickDraw routines in an EPROM on the motherboard, to speed up the overall system performance. Sorta like booting Windows off silicon on the motherboard - silicon is MUCH faster than a HDD. Now with DDR based hard drives coming into usage - that too will be a thing of the past.

Today, the Mac mobo is absolutely identical to the motherboard that may already be in your laptop or desktop. Same motherboard, same processor, memory, HDD and video card you may already be using.

So, the only reason that I can ascertain for Windows not competing against the MacOS, is because Apple refused to compete. IMHO, they probably won’t bankdrupt MSFT; but I do believe their marketshare would go from single digits well into the double digits (20-50% marketshare). At that level of marketshare, the software companies will seriously consider if porting their games, utilties and diagnostic programs to support the MacOS.

[Brugmansian]

I just went from XP to a Mac Mini. Didn’t install any software to use my old (new really) monitor, keyboard, mouse. Didn’t even need the DSL 2wire software. Truly plug and play.

Finding it more difficult however to return to Apple than I did going from Apple to XP. Really miss InfranView. iPhoto annoys me every time I open it. So does Preview. I don’t want to buy another bloated program either (already have two from my cameras). All I want is something quick and fast...the type of thing for which Apple is touted but doesn’t, far as I know, provide when it comes to photo editing.

[Swordmaker]

I could put together a whole lot more computer than that Z600 or a Mac for less money.

Match the component with the exact same components, one for one, and you will find that you cannot. Even ignoring labor imputs, you will soon find that you have overspent your budget and still have equivalent component items left to purchase. This has been attempted numerous times, buying equivalent grade parts through Egghead, or other discounters on the internet.

Ars Technica attempted to build a computer equivalent to an $2499 entry level Mac Pro (one with dual Xeon Core 2 Duo processors), purchasing the lowest priced equivalent component they could find on the Internet, and had exceeded the retail price of the Mac Pro before they had purchased a powersupply, case, and OS.

[antiRepublicrat]

I could put together a whole lot more computer than that Z600 or a Mac for less money.

This is the workstation market. Both are well-priced. The processors alone in that $3,299 Mac will run you about $2,000. The mobo is another $400, the PSU another $250, the memory almost $200. A decent case and cooling will run another $200, then you need hard drive, video, sound, Firewire, DVD drive, Bluetooth, an operating system, etc. By going piecemeal you've probably already spent more than if you'd just bought the system from an OEM, and you still have no support.

I wouldn’t buy either. Is that clear?

What is clear is that you think something is over priced when it is in fact a good value, just not in your price range.

[Swordmaker]

All I want is something quick and fast...the type of thing for which Apple is touted but doesn’t, far as I know, provide when it comes to photo editing.

Quick and fast? Try Preview, which has extremely powerful editing tools:

• Resize — free form or aspect ratio maintain
• Crop selection — select: rectangular, oval, smart lasso, or free form
• Rotate — Left, Right
• Flip — Horizontal, Vertical
• Adjust Color Gamut dynamically
• Adjust Exposure
• Adjust Contrast
• Adjust Color Saturation
• Adjust Color Temperature
• Adjust Tint
• Convert to and adjust Sepia tone
• Adjust Sharpness
• Set Printer and monitor Color synching

Apple Preview Image Adjustment Palette

In addition, all images can be converted to a host of other image file types:

Apple Preview Image Conversion Choices

Add to that the ability to quickly annotate an image by adding an Arrow, a Rectangular Box, a Circle or an Oval, and Text. Preview can free-form crop any picture:

Preview can import images from any connected camera, iPhone, scanner, or it can grab a screen, a window, or a selected area of the screen. It can email any image using its integration with Apple's Mail app.

All of that is just in a system utility Apple originally designed to simply Preview images. iPhoto has tons more capability.

You need to quit being annoyed at iPhoto and start exporing its capabilities which you will find probably exceed those of IrfanView, especially in the latest version which incorporated many professional level tools from Apple's professional photography application Aperture. There is a reason why Apple is touted for handling photos.

[Brugmansian]

maybe it will just take getting used to. Where is exif in Preview? I see a limited version of it in iPhoto. For some reason, Apple calls it Extended Photo Information instead of what I am really looking at (yeah that word play makes me cranky..).

If I wanted to check someone’s photo with XP, I downloaded, dragged it to irfanview, looked, then threw it away. Is it that easy with a Mac?

[Swordmaker]

If I wanted to check someone’s photo with XP, I downloaded, dragged it to irfanview, looked, then threw it away. Is it that easy with a Mac?

It's easier.

If you get it in an email... Mail already shows it to you.

If you get it on a disk, or flash memory, or download it, no dragging anything anywhere is required. Simply highlight the file and tap the spacebar. The OS will display the picture, play the video, show the PDF, play the sound file, show the MS Word file, show the Pages file, etc., all without opening any applications. If you wish, you can, with one click, display the image or movie full screen. One more click reverts to window format. Tapping the space bar again turns off the Quick Look.

You can highlight the first file in a directory, press the space bar, and use the up-down arrow keys to display all of them in order.

[Swordmaker]

Where is exif in Preview? I see a limited version of it in iPhoto.

Complete EXIF information about the image is found in Preview under the Menu "Tools"/"Show Inspector": select the second TAB (more Info) and then click on the "Exif" button. You will have everything Exif has to offer.

The information is available in iPhoto as well. Under the Photos menu, "Show Extended Photo Info" and make sure you click all the header switches to on... They are a little hard to see. (I just sent feedback to Apple about this design element being not user friendly) They are the darker gray on dark gray background triangles to the left of the headers. Those headers say "image," "File," "Location," "Camera," and "Exposure."

iPhoto allows you to modify the Exif information in a limited fashion.

[this_ol_patriot]

However, I think you are overlooking the silent majority; Mom and Dad who are close to, or in retirment who only want to send email, read the news and maybe put together a photo-album DVD of their family vacation. My parents are in their 70’s; and teaching them to use Windows - alone - it a very frustrating experience. The ease of use, and base elegance that is OS X makes this a great candidate for this demographic.

A trend I noticed amoung the 50ish-60ish crowd at my work is they go from writing with pen and paper and licking stamps to cell apps and skip the PC altogether. Could this be the future? They don't want a PC at all, just the ability to do some of the things that was once only available on a PC. Maybe the future of the PC is hardcore gamers, hardcore business and editing video. Even my work is dumping desktops for specific purpose digital appliances and BlackBerrys.

[Big Giant Head]

What is clear is I’m getting performance per dollar spent in a far better ratio than if I buy one of those.

[antiRepublicrat]

What is clear is I’m getting performance per dollar spent in a far better ratio than if I buy one of those.

What you may not be understanding is that those are among the highest-performance PCs out there, and you can't build them for cheaper than you can buy them from an OEM. You may be able to get more performance per dollar for much lower-performing systems, but that's it, they simply won't be as fast. Dual-processor always costs a lot more.

[Brugmansian]

Thanks of the exif data location. There is was. Right where I looked and didn't see it. Now I have to figure out why animations don't play in Preview.

I've had it with switching back and forth between Microsoft and Apple every four or five years. Gonna get 3 more GB of ram, Snow Leopard and hope this Mac Mini out lasts me.