Mac OS X recovery
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The character X is a Roman numeral and is officially pronounced "ten". It is the next release following the numbering of previous Macintosh operating systems such as Mac OS 8 and Mac OS 9.Mac OS X versions are named after big cats. Prior to its release, version 10.0 was code named " Cheetah" internally at Apple, and " version 10.1 was code named internally as " Puma". After the immense buzz surrounding version 10.2, codenamed " Jaguar", Apple's product marketing began openly using the code name to promote the operating system. 10.3 was marketed as " Panther", and 10.4 as " Tiger". " Leopard" is the name for the current release version 10.5. "Panther", "Tiger" and "Leopard" are registered as trademarks of Apple, but "Cheetah", "Puma" and "Jaguar" have never been registered. Apple has also registered " Lynx" and " Cougar" as trademarks. Computer retailer Tiger Direct sued Apple for its use of the name "Tiger". But on May 16, 2005 a US federal court in the Southern District of Florida ruled that Apple's use does not infringe on Tiger Direct's trademark.
- Mac OS X 10.0 (Cheetah) The initial version was slow, not feature complete, and had very few applications available at the time of its launch, mostly from independent developers. Many critics suggested that while the OS was not ready for mainstream adoption, they recognized the importance of its initial launch as a base on which to improve. Simply releasing Mac OS X was received by the Macintosh community as a great accomplishment, for attempts to completely overhaul the Mac OS had been underway since 1996, and delayed by countless setbacks. Following some bug fixes, kernel panics became much less frequent.
- Mac OS X 10.1 (Puma) Later that year on September 25, 2001, Mac OS X v10.1 (internally codenamed Puma) was released. It had better performance and provided missing features, such as DVD playback. Apple released 10.1 as a free upgrade CD for 10.0 users, in addition to the US$129 boxed version for people running only Mac OS 9. It was discovered that the upgrade CDs were actually full install CDs that could be used with Mac OS 9 systems by removing a specific file; Apple later re-released the CDs in an actual stripped-down format that didn't facilitate installation on such systems.
On January 7, 2002, Apple announced that Mac OS X was to be the default operating system for all Macintosh products by the end of that month.
- Mac OS X 10.2 (Jaguar) On August 23, 2002, Apple followed up with Mac OS X v10.2 "Jaguar", the first release to use its code name as part of the branding. It brought great performance enhancements, a sleeker look, and many powerful enhancements (over 150, according to Apple), including Quartz Extreme for compositing graphics directly on an ATI Radeon or NVIDIA GeForce2 MX AGP-based video card with at least 16 MB of VRAM, a system-wide repository for contact information in the new Address Book, and an instant messaging client named iChat.
The Happy Mac which had appeared during the Mac OS startup sequence for almost 18 years was replaced with a large grey Apple logo with the introduction of Mac OS X 10.2.
- Mac OS X 10.3 (Panther) was released on October 24, 2003. In addition to providing much improved performance, it also incorporated the most extensive update yet to the user interface. Panther included as many or more new features as Jaguar had the year before, including an updated Finder, incorporating a brushed-metal interface, Fast User Switching, Exposé (Window manager), FileVault, Safari, iChat AV which added video-conferencing features to iChat, improved Portable Document Format (PDF) rendering and much greater Microsoft Windows interoperability. But, support for some early G3 computers such as "beige" Power Macs and "WallStreet" PowerBooks was discontinued.
- Mac OS X 10.4 (Tiger) was released on April 29, 2005. Apple stated that Tiger contains more than 200 new features.As with Panther, certain older machines were no longer supported; Tiger requires a Mac with a built-in FireWire port. Among the new features, Tiger introduced Spotlight, Dashboard, Smart Folders, updated Mail program with Smart Mailboxes, QuickTime 7, Safari 2, Automator, VoiceOver, Core Image and Core Video.
Tiger's retail package was updated and reduced in size around the end of April 2006. It was called Mac OS X 10.4.3, and replaced the first release in retail stores.
On January 10, 2006, Apple released the first Intel-based Macs along with the 10.4.4 update to Tiger. This operating system functioned identically on the PowerPC-based Macs and the new Intel-based machines.Because the implementation of the OS is built separately for the two processors, in implementation the PowerPC version and Intel versions are two separate installers (one cannot use the PowerPC installer to install the OS onto an Intel-based Mac).
At some time in 2006 the retail packages were again updated with 10.4.6, also a PowerPC-only DVD installer. No retail package for an Intel-based Tiger Installer was released by Apple.
The latest update to Tiger has been 10.4.11(November 14, 2007).
- Mac OS X 10.5 (Leopard) was released on October 26, 2007. Leopard supports both PowerPC- and Intel x86-based Macintosh computers. The single DVD works for all supported Macs (including 64-bit machines). New features include an updated Finder, Time Machine, Spaces, Boot Camp pre-installed, full support for 64-bit applications (including graphical applications), new features in Mail and iChat, and a number of new security features.
Leopard is an Open Brand UNIX 03 registered product on the Intel platform. It is also the first BSD-based OS to receive the UNIX 03 certification.
Leopard installation problems
Apple posted a support document on its Web site addressing reports of interminable "blue screen" problems that caused some Mac users upgrading to Mac OS X Leopard no small degree of frustration.
Some attempts to upgrade to Leopard were stymied after the installation process was almost complete and users attempted to restart their machines. A long thread on Apple's discussion forums outlined the problems, in which their Macs would get hung up on the initial boot screen. That screen happens to be blue, inviting comparisons to the infamous Windows "blue screen of death" encountered when Windows crashes.
Apple said the problem could be related to "application enhancement software," and a Computerworld article identified Unsanity's APE software as the source of many complaints. Unsanity develops software that allows Mac users to customize the look and feel of Mac OS. An Unsanity representative told Computerworld that problems might occur only on outdated versions of APE that shipped before Apple switched to Intel's chips.
Apple recommended two solutions for Leopard owners attempting to upgrade: novice users should reinstall Leopard using the "Archive and Install" method detailed here. Mac owners who have been around the block a few times can try the other solution, which involves using the command line to get rid of the application enhancement software.
If you've tried those suggestions and you're still having trouble completing the upgrade, check out the discussions forum on Apple's support page, and let us know what's going on.
If you have tried the suggestions above and are still unable to recover your data, KrollOntrack can help you recover your data. Please call one our data recovery consultatns on +44 (0)1372 741 999
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