Mac OS X Leopard - ARCAism

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122 CHAPTER 6 COMMON LEOPARD MAINTENANCE NOTE There are two primary things that can go wrong on a disk: there’s physical damage, which is when the disk mechanism fails and possibly crashes, and there’s file system damage, which is when the data on your disk gets mixed up or damaged. Tools like Disk Utility can often detect and repair file system damage before it causes data loss. Physical damage to the disk is more permanent, and often irreparable (although in some cases the data can be recovered by special hardware and/or software). NOTE The term disk crash refers to the event when the arms that pass over the disk surface to read the data fall and literally crash into the disk’s surface, causing irreparable damage. This used to happen with older disk mechanisms that would rely on the air force of the spinning disk to keep the arms up, so if the disks quit spinning suddenly before the arms could move back off the disk’s surface (e.g., in a power failure), the arms would fall. Disk crashes like this don’t happen with today’s hard drives, but mechanical issues still arise, and disks do get old and eventually wear out (usually after years of service, though). Disk Utility divides its abilities into five areas: First Aid, Erase, RAID, Restore, and Partition. First Aid provides a couple of general maintenance tools that can help identify and repair both file system damage and issues in which the system’s file permissions become altered. The Erase tab provides the necessary tools to partition and format a disk using various supported file systems. The RAID tab allows you configure multiple disks to behave as one in various ways. The Restore tab lets you restore a disk image onto a disk. We’ll cover each of these in the following sections. The fifth area is Partition; it appears if you select the entire disk, rather than just a volume in the list of devices on the left. The Partition tab allows you to split a single disk into multiple volumes. NOTE A disk is a physical device, whereas a volume is a file system written to a disk. The physical space on a disk can be divided up into different volumes (or even left as empty space). These divisions are referred to as disk partitions. First Aid The First Aid tab (Figure 6-1) allows you to run a few tasks to help identify and fix certain problems with your disk’s file system. If you seem to be having issues with your disk or notice anything unusual about how it’s running or storing data, this is the first place to go to try to solve the problem. In the lower-right-hand corner are two buttons: Verify Disk and Repair Disk. Clicking Repair Disk will scan the disk to identify and repair many common file system errors. Although most of the errors it may find are in themselves minor, they can often cause bigger issues down the road. One gotcha here is that you can’t repair the boot volume—you can, however, click the Verify Disk button to see if there are any problems with it, and if so, you can utilize the Repair Disk function from the Disk Utility application included with your Leopard DVD (just boot from your install DVD and run Disk Utility from there—don’t, however, start a new install unless things are really hopeless). On occasion, the Repair utility will come across an issue it cannot repair. At this point, you have two primary options (well, three if you are the type of person who can just ignore a problem until it’s too late). Before you decide what you want to do, you should first make backup copies of everything you value on your hard drive. Even if you already have a copy, make another one (I have personally had a primary disk and a backup disk fail simultaneously, and it was not a happy moment. Luckily I had another backup and only lost about a month of work; now I use a mirrored RAID for my backup). Once that’s done, you can do either of the following:
CHAPTER 6 COMMON LEOPARD MAINTENANCE 123 Figure 6-1. Leopard’s Disk Utility repairing permissions on a volume using one of the First Aid tools • Erase, reformat, and reinstall everything on your disk. This option takes a long time and will likely cause a few frustrating moments—and nothing will ever be quite the same. However, it should fix any file system problem, plus it can clean out some other gunk that can creep into your computer as you use it over a long period of time. • Purchase and try some other disk utility software. There are two very good, easily obtainable disk utilities out there for Macs: TechTool Pro by Micromat (www.micromat.com/) and DiskWarrior by Alsoft (www.alsoft.com/DiskWarrior/). Both of these come on a bootable CD or DVD (you can even get a special bootable thumb drive with TechTool Pro), so you can boot them up and use them right away. The downside it that either of these will set you back about $100. NOTE Before you break out that checkbook, check whether you got AppleCare with your new computer (you did, didn’t you?). If so, check the box it came with—inside is a CD with a special version of TechTool. It doesn’t have all the features of the Pro version, but it might solve your problem, and at the very least, you can use this version to save some money when upgrading to the full Pro version ($59 vs. $98 on their web site).
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Mac OS X Leopard: Beyond the Manual
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PART 5 Getting to Know Darwin CHAPT
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viii CONTENTS CHAPTER 2 The File Sy
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x CONTENTS CHAPTER 7 Managing Appli
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xii CONTENTS CHAPTER 12 Address Boo
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xiv CONTENTS CHAPTER 16 iLife ’08
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xvi CONTENTS CHAPTER 21 Port Forwar
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xviii CONTENTS CHAPTER 25 Quick Loo
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xx CONTENTS Running Microsoft Windo
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xxii Acknowledgments First of all,
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Getting to Know Leopard PART 1
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4 CHAPTER 1 WORKING IN LEOPARD: THE
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10 CHAPTER 1 WORKING IN LEOPARD: TH
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28 CHAPTER 2 THE FILE SYSTEM Figure
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30 CHAPTER 2 THE FILE SYSTEM Table
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32 CHAPTER 2 THE FILE SYSTEM Table
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34 CHAPTER 2 THE FILE SYSTEM While
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36 CHAPTER 2 THE FILE SYSTEM Hidden
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38 CHAPTER 3 USING SPOTLIGHT, EXPOS
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System Preferences Many of the conf
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Option Description Click in the scr
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Table 4-2. Desktop Image Aspect Sel
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Dock The Dock preference pane (Figu
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CHAPTER 4 SYSTEM PREFERENCES 59 Fig
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Figure 4-11. The Input Menu tab in
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Figure 4-13. The Spotlight preferen
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Figure 4-16. The Display tab of the
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NOTE As you may have noticed, click
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Figure 4-22. When you have multiple
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Page 187 and 188: NOTE One application notably missin
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Figure 10-2. You can customize your
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Menu/Submenu Item Keyboard Shortcut
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Figure 10-4. All of your bookmarks,
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Figure 10-6. Safari running with ma
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CHAPTER 10 BROWSING THE WEB WITH SA
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Figure 10-10. The AutoFill options
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Private Browsing Another way to pro
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RSS Feeds in Safari RSS (Really Sim
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On the right side of the view area
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Figure 10-16. Selecting a region in
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Mail, Address Book, and iCal Mail T
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Item Keyboard Shortcut Description
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Figure 11-2. The first step in addi
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CHAPTER 11 MAIL, ADDRESS BOOK, AND
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When you select a message, its cont
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Creating Mail Rules CHAPTER 11 MAIL
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Figure 11-11. Mail will open a shee
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Using Mail Stationery The Mail appl
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Figure 11-14. Leopard’s Address B
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Creating Groups You might want to c
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Figure 11-17. iCal in Leopard (Week
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Adding Time Zone Support iCal has a
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iChat Instant messaging has been ga
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Figure 12-2. The Account Setup shee
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NOTE For more options, see the “C
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Ironically, the IM central server a
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For best results, select an even, n
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NOTE The Share My Screen... and Ask
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• Collect chats into a single win
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Figure 12-14. Tabbed chat helps you
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Working with Applications PART 4
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248 CHAPTER 13 APPLICATION BASICS S
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250 CHAPTER 13 APPLICATION BASICS F
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252 CHAPTER 13 APPLICATION BASICS F
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254 CHAPTER 13 APPLICATION BASICS T
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256 CHAPTER 14 APPLE APPS INCLUDED
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266 CHAPTER 15 .MAC NOTE You can al
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268 CHAPTER 15 .MAC iDisk Another f
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iLife ’08 Apple’s iLife ’08 i
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NOTE iPhoto keeps track of all your
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Figure 16-3. iMovie ’08 and its n
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Figure 16-5. Building a Welcome pag
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New in GarageBand ’08 is a featur
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iWork ’08 Apple has been producin
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One great feature of Keynote is tha
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Figure 17-4. A Pages document in Pa
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Getting to Know Darwin PART 5
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290 CHAPTER 18 INTRODUCING DARWIN A
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330 CHAPTER 19 EXTENDING THE POWER
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Leopard Networking The Mac is known
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Selecting Always Allow will add the
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You can also use Little Snitch to s
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theory behind Ping is that any mach
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So, while Network Utility is a good
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Apple includes a second utility for
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Figure 20-11. Setting up port forwa
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366 CHAPTER 21 WORKING WITH REMOTE
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Leopard As a Web Server There are s
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Figure 22-3. The Networking pane of
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If you’re developing web content,
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VirtualHost If you’ve got a web s
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What makes this directive interesti
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all that stuff is now handled autom
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Figure 22-7. The MySQL pane in Syst
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Domain Name Tricks Were you so incl
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PART Leopard Development and Script
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402 CHAPTER 23 MAC OS X AUTOMATION
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What is it about the Mac that makes
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Figure 24-2. Cocoa components in In
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Figure 24-3. Core Data modeling in
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Not so fast! CHAPTER 24 MAC OS X DE
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Figure 24-6. Address Book’s Peopl
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CHAPTER 24 MAC OS X DEVELOPMENT: TH
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Publication Subscription Syndicatio
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Figure 24-16. Core Animation’s ef
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On Mac OS X, this abstraction goes
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Ruby is the new hotness, and it shi
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WebObjects A kind of Cocoa for the
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448 CHAPTER 25 MAC OS X DEVELOPMENT
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Occasionally while using Leopard, y
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CHAPTER 27 WORKING WITH MICROSOFT W
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Appendixes
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526 APPENDIX A WHAT’S NEW WITH LE
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544 APPENDIX B INSTALLING MAC OS X
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Index Symbols and Numerics # (hash)
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alloc method, Objective-C, 483, 492
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Attach File command, Mail, 199 atta
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CalDAV standard, 430 iCal and, 227
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emote computing by Secure Shell in
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digital cameras connecting, 117-118
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saving text, 318, 319 searching tex
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filters Core Image filters, 439 Ima
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ftps (FTP Secure), 367 function key
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Instant Message framework, 431 inte
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IP addresses, 163 configuring Mac f
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list (port list) command, MacPorts,
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memory management, Objective-C, 482
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New Message window, Mail, 217 New N
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password sheet creating keychains a
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opening, 106 Supply Levels tab, 106
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unning PowerPC code, 518 Rotate too
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Services option, Mail, 198 set comm
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Spotlight Comments section, Info wi
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identifying differences in document
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users running commands, 303 who els
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Window items, Safari, 178 Window me
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Mac OS X Leopard - ARCAism

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