cheapest PC repair.com

Posts Tagged ‘hfs’

Microsoft Virtual PC works as an emulation program for a Mac OS X system running on PowerPC processor. While serving as a virtualization program for Windows, it virtualizes a PC and its hardware associated with it. At times due to drive format incompatibility issues, when you connect a USB or FireWire hard drive to a Microsoft Virtual PC for Mac, you might fail to install and access it. Thus, to troubleshoot such situations, you will need to reformat the hard drive to make it compatible with the system. Doing so causes complete data loss and require you to restore the lost data from backup. But if backup fails to restore, you need to use Hard Drive Recovery solutions to completely recover and restore data.

For an instance, you try to access an external USB or FireWire hard drive through a Microsoft Virtual PC for Mac v6.1, but fail in your attempts. Also, when you try to install the same hard drive to the guest operating system, the Virtual PC or machine might hang. The similar behavior might also be observed when you perform similar steps in Connectix Virtual PC for Mac v6.0.

Virtual PC for Mac were originally developed by Connectix and later acquired by Microsoft.

Cause

Following are few reasons from which the above stated problem root:

A FireWire port is not emulated by Virtual PC virtual machine
The USB external hard drive or its drivers are incompatible with Virtual PC
Hard drive is formatted with a Windows file system.

Solution

You need to use these methods to reproduce the above behavior:

You can share this external hard drive to use in Windows
Reformat the entire hard drive with HFS or HFS+ format and restore lost data from backup.

You need to use Hard Drive Recovery Software if data backup seems to be useless or absent. Built with superior scanning technology, these commercial Hard Drive Recovery utilities provide complete data recovery while without altering the original information. These are graphically rich applications that scan the affected hard drive using high end scanning algorithms.

Stellar Information Systems Limited provides effective data recovery utilities for Macintosh, Windows, Linux, UNIX and Novell operating systems. These are safe, reliable and fast recovery products that are designed with powerful recovery techniques. Stellar Phoenix Macintosh Data Recovery is an advanced and exceptionally realistic Hard Drive Recovery Software that supports HFS, HFS+, HFSX, HFS Wrapper and FAT file systems.

Author is researching on the hard drive related problems and explains the situations that can cause data loss .Author has given solution of hard drive recovery and suggested to use hard drive recovery software.

Article Source: External Hard Drive Issues on Virtual PC for Mac

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.

è 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.

è 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 Macintosh 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.

Allen a student of Mass Communication doing research on mac data recovery and mac data recovery software software. He is also a freelancer for http://www.stellarinfo.com

Article Source: Mac Data Loss While Changing Partition Table From APM To GPT

For users, who want dual booting between Mac OS X and Windows XP or Vista, Boot Camp will allow you to do so. This is an assistance tool, which comes with Leopard and works on Intel based Macintosh systems. The software lets you have safe repartitioning of the Mac hard drive and helps installing Windows.

But, due to one or the other reasons, some users are reporting a strange error with the software. When the user attempts repartitioning with the application, the following error may pop up:

“The disk cannot be partitioned because some files cannot be moved.

Back up the disk and use Disk Utility to format it as a single Mac OS X Extended (journaled) volume. Restore your information to the disk and try using Boot Camp Assistant again”

Also, if you look in /var/logs/system.log file for further descriptive look of the problem, the error may be like:

“Sep 1 14:55:30 chmac kernel[0]: hfs_truncatefs: couldn’t reclaim space on Macintosh HD”

The problem may be the outcome of:

Ø Operating system installation faults

Ø Parallels VM marked unmovable

Ø Insufficient Disk Space

Ø External drives connected

Ø Sharing Options turned on

So try resolving the issue by reinstalling the operating system, deleting the parallels VM file, freeing the hard disk from useless and large files, disconnecting the external drives or turning off the sharing options. See if, either of them helps. But, make sure that you have all the data backed up before reinstalling OS, unless to require Mac data recovery.

However, Boot Camp also put restriction on the Windows partition that the lowest limit must be of 5 GB and it must leave the same amount of free space for Mac partition. So see, if this is not creating the problem.

And those, who have lost data due to installation of Mac OS or while deleting some important file can have Mac recovery with the third party applications. Data recovery Mac software are designed to run the powerful scanning procedure on the Mac hard drive so as to retrieve the lost data.

Stellar Phoenix Macintosh Data Recovery software is counted top in list, whenever Mac data recovery utilities are counted. This Mac recovery utility is safe and effective to recover the lost data in any case. Equipped with the interactive interface, this data recovery Mac software is compatible with HFS, HFS+, HFSX and HFS Wrapper file systems.

Simpson is a freelancer for Stellar which offers data recovery software and file recovery programs for different OS and file system including data recovery mac, data recovery linux, mac data recovery , pst recovery and many other programs.

Article Source: Boot Camp Error in Mac