Mac Data Loss While Changing Partition Table From APM To GPT
HTML clipboard
When Apple moved to Intel processors from PowerPC, a number of changes have been made to the way in which Macintosh works. The changes included the move from PowerPC RISC (Reduced Instruction Set Computers) chip to Intel Core Duo CISC (Complex Instruction Set Computer).
At the same time, Apple allowed its users to change their partition table from APM (Apple Partition Map) to GUID Partition Table (GPT). But sometimes, after changing the partition table, your Mac OS system may not start and you may come across data inaccessibility and data loss problems. To overcome these issues, Mac Data Recovery is required.
GPT is an advanced partitioning scheme that works on both Intel and PowerPC based computers. For this reason, you can use it for both Mac OS X and Windows operating system. It provides you a greater flexibility of resizing hard drive partitions and to easily and effectively manage your mission critical data.
APM (Apple Partition Map) is an extremely simple and robust partition structure to partition a hard drive, which can be formatted as either HFS+ or HFS file system. APM partitions do not contain boot code. The Open Firmware of computer has the code for reading this structure. APM is read by the Open Firmware and then HFS+ file system read and finally operating system is booted. Open Firmware is capable of booting the system only from HFS file system volumes and thus it is not compatible with Windows operating system.
GPT (GUID Partition Table) is a partitioning scheme that is included in EFI (Extensible Firmware Interface) of Intel. It is defined by the formal standard as a part of EFI. GPT encompasses entire hard drive with a secondary partition table to the end of drive. It works as a backup copy of primary data.
Due to advanced functionalities, stability and other features, several Mac users are changing their partition tables from APM to GPT. But sometimes after converting the partition table, your may not see your hard drive partitions and can not access data from them.
Such situations might occur due to incomplete or interrupted conversion of partition table. In such case, you need to perform Data Recovery Mac to retrieve your lost or missing data. It is best possible with the help of powerful and advanced third party Mac Recovery software.
These software are very easy to use and perform complete scanning of the affected hard drive using proficient scanning methods. These software are very easy to use and allow you to have Do It Yourself Mac Data Recovery.
Stellar Phoenix Mac Data Recovery is a robust tool to recover all your lost data in most of the data loss situations. It can recover data from HFS, HFS+, HFSX, HFS Wrapper and FAT file system volumes. This software is compatible with Mac OS X 10.5, 10.4 and 10.3.9.
About the Author:Allen a student of Mass Communication doing research on data recovery mac and mac data recovery services software. He is also a freelancer for http://www.stellarinfo.com
Article Source: ArticlesBase.com - Mac Data Loss While Changing Partition Table From APM To GPT