Superblock corruption and data loss in mac

Mac OSX supports external devices to create backup, store your data, or for installing an OS. You can access data from external hard disk by simply attaching them and then using mount command to mount them. However, in some situations, an external hard disk is mysteriously un-mounted by Mac OS X Machine, while storing data to or accessing data from the disk.

This sudden behavior of Mac OS X makes your hard disk inaccessible and cause severe data loss. In order to get your valuable data recovered in such cases, you need to go for Mac data recovery solutions, if there is no updated backup in place.

Some times you comes across below error messages while working

“Mount: wrong FS type, bad option, bad superblock on /dev/hdb1,
Missing code page or other error
In some cases useful info is found in syslog- try dmesg tail or so”

Or

“Unknown device”

This means that you either have to ‘Initialize’ your Mac OS X hard drive or to ‘Cancel’ the ongoing  process, this whole scenario can leads to inaccessibility to  your data . To retrieve data from the hard disk, you need to find the main reason behind this behavior of your machine and after finding that you need to perform File recovery mac operation by the use of data recovery software's available in the market.

Main reason behind the issue

As mentioned above, the problem is generally due to corruption to the superblock corruption which may be caused by various reasons, like improper system shutdown,virus infection and operating system malfunction

How to resolve it

In order to sort out the problem in  Mac OS, you need to get your damaged data structures replaced by formatting the hard disk and reinstalling OS. However, it removes all the data from hard disk and create needs of Mac file recovery software.

How to Recover Deleted Entourage Emails in Mac OS X?

Entourage, used to organize valuable emails in Mac OSX is a Personal Information Manager and email client. The application provides project manager, address book, email, task list, calendar, note list and various other features. Using this email application, you can organize your old projects and create new ones. However, in some cases, your critical emails from the Entourage application may get corrupted or deleted and you come across serious data loss situations. In such cases, you need to opt for Mac file recovery solutions to get your Important emails back.

Entourage is designed with an interactive and rich GUI, which let you easily manage all your Important emails through a single in box. If you are Managing more than one accounts, you can add them to the Entourage mail and access all your data from single point. The application uses POP3, Simple Mail Transfer Protocol, and Internet Message Access Protocol and supports Gmail,AOL, Mobile Me, and Exchange Server through IMAP.

Your Entourage email account stores very Important contacts, emails, notes etc. from all your email accounts. The loss of it that might affect your business as well as market reputation.

The email messages from your Entourage may get deleted because of various reasons such as protocol related issues, virus infection, user errors, , server corruption,accidental deletion and application malfunction. In order to perform File Recovery Mac to get your lost emails back, you need to restore from a backup and for that you need to ensure that the back up is up to date.

Disk Utility Error and Its solution

Disk Utility was created by Apple It helps in solving many disk related tasks like encryption, creation conversion and compression of disk spaces, verifying disk integrity, mounting, unmounting and ejecting disks and lots of other task.

sometimes the following message is splashed on the screen

“Disk Utility Internal Error".

This error message appears when the user try to repair the permissions.

As it is quite clear from the error message that there may be a DiskManagementTool related problem. One thing that can be tried out is to use Repair Disk after booting it from the CD.

This is also possibility that something might have gone wrong with system files of your operating system and you need to reinstall the OS. But this process risks your data and Mac File recovery is needed in Prevailing condition. If you have backup of all your important data on any of the external storage devices then you its safe for you otherwise this could be a tremendous loss.

Mac file recovery softwares are the primary need of the user in this case These software come with the GUI which are easy to deal with and are very interactive.

The Mac data recovery software scans the hard drive and then recovers the lost data. The file support included HFS, HFS+, HFSX and HFS Wrapper file systems.

Fixing Extent Allocation Overlapping in Mac OS

Disk inconsistency and file system problems are some of the problems faced by every computer, Running on different OS at any point of time,including Mac OS X. Mac OS X provides Disk Utility and fsck tools to handle such situations,Both of them are able to detect and fix at certain extent hard drive and file system related problems But these tools have certain limitation and they cannot handle all the issues efficiently in Those cases you are required to opt for Mac File Recovery solutions through appropriate tools.

When you run Disk Utility or fsck command on Mac OS X hard drive to check it for errors, You May Find some messages like

“overlapped extent allocation”

The disk checking process gets stops with above error message. It leaves all your data inaccessible. In order to retrieve data in such situations, you need to find out the main reason why the message is displayed and after finding that Mac File recovery is performed to fix it.

Root Cause of the issue:

As stated in the above error message, problem is caused due to "overlapping of allocation space". When this message takes place in Mac Operating system, it means that the same disk space is allocated to two files. Thus, it is certain that one file among them would be deleted. Solutions of the above problem exist, but you need to ensure that More data is not lost. Thus, it will be a wise step to recover lost data first and then fix the current issue.

To resolve the issue these things should be done:
1) Perform Erase and Install Operations in Mac OS X using installation disk. But You should always back up all your important data before you go for it.

2) Delete affected file and then all the data must be restored using the backup.

In case backup is not available, different data recovery utilities must be used like File Recovery Mac Software are required. These are the advanced and effective third-party applications, having very efficient scanning algorithm to perform in-depth scan of entire hard drive and extract all lost,inaccessible and missing files from it.

Mac Data Loss Due to Wrong Input device connection

Mac OS X, The most powerful and widely used operating system,is developed and marketed by Apple Inc. This OS is based on Unix Operating system. Many version of this Mac OS is available in the market latest one is Mac OS X 10.6 Snow Leopard. It is considered as the most reliable operating system, But it sometimes faces Failure and leads to cause serious data loss situations. In these cases, you need Mac Data Recovery software to get back your critical data.

There are lot of reasons that causes these failure and most frequent is related to hardware associated with the Mac computer that occurs if you mistakenly connect or attach the input devices that are not compatible to Mac OS X system. This might result into significant data loss and may lead to data inaccessibility.

In a practical scenario, when you connect a mouse from a Mac system that is experiencing data loss problems to a another system, you might find that the data from healthy system has got corrupted.

The cause behind it could be compatibility problems of input device with Mac OS X computer. Another thing is that the input device is not in a good condition, This can be termed as data loss due to hardware malfunctioning.

what ever the reasons may be but data loss is the main concern. In these cases, you require Mac Recovery Software to deal with the problem. Recovery is the process of retrieving inaccessible, missing or lost data, which can not be accessed normally. Recovery is best possible using powerful and effective third party Mac File Recovery Utilities.

These softwares use high-end scanning techniques to methodically scan entire damaged hard drive and extract all of the lost data from it.

Data loss in Mac OS X Due to Changing Boot Options to EFI

The Extensible Firmware Interface or EFI defines the application interface between Mac OS X and the platform firmware. Boot manager is included in the Extensible Firmware Interface boot procedure. In Some of the Mac OS x Systems Boot drive options need to be modified to involve the EFI boot .

The changing of the boot options may some times causes critical problems and lead to serious data loss. In such cases, you need to look for Mac File Recovery software to get your critical and valuable data back.Sometimes after the modification of boot device options boot menu starts showing options that are totally unexpected. EFI boot options starts showing and you’ve no clue of accessing bootable volume. The boot process might not be usual, but the drive name is shown as general in the Finder.

The situation is quite difficult as all of your critical data becomes inaccessible . This issue may take place because of some modifications made to the structure of Mac OS X volumes. The problem may also occur if you have restored the clone of hard disk after you upgrade your system or you face data loss and need Mac Recovery to get your valuable data back.

In such cases, you are highly recommended to stop using the system and go through the following steps:

You should use alternative methods to clone the hard drive. Cloning should be done using bit-for-bit transfer method as even a minor mistake may cause serious data loss. Disk Repair utility should be used to check consistency and integrity of your hard drive. If the tool finds any error, fix it.

1) Reset the PRAM .

2) Go to System Preferences and change the startup disks.

When everything else fails, perform Erase and Install Installation of Mac OS X.

You can resolve all the issues related to disk by erasing a Mac drive and reinstalling OS, but it also results in some data loss. In such situations, you need to take help from Data Recovery softwares to extract all of the lost data.

Recovery is best possible using advanced and efficient Mac Recovery Software. The Software methodically scan whole drive and extract as much data as possible from it. You can perform "Do It Yourself" recovery using the software as they have rich and interactive graphical user interface.

Restore Disk Fails to Work : Use " Mac Data Recovery"

Apple has recently released the new version of Mac OS X , called Mac OS X 10.6 Leopard. Mac users are very excited to upgrade to Leopard and take benefit of its advanced features. It can easily be installed and used on older Mac machines including iMac G4 series. But in some situations, you may come across the installation problems with older systems. In such cases, you can use method "startup disk"to prevent data loss situations and need of Mac Data Recovery solutions.

In case of system malfunction, startup disk feature of Mac Disk Utility enable you to make a virtual disk so that you can restore your system to previous working state in case of some problems . It includes creating startup disk with the help of Snow Leopard installer that Macintosh OS would restore while installing new operating system.

Restore Disk Can be created through the following steps :

1) Clean the hard drive and system folder. Delete unused extensions, empty unwanted file and Create a back up.

2) Extract the image files from Mac OS X installation DVD and convert it to *.dmg file and move it to the external drive.

3) Attach your USB drive to system and wait until it appears and then launch Disk Utility and select USB drive.

4) Click on Restore tab and select image file that you have extracted on ’source’ field and then drag external disk to ‘destination’ field. You must create

a partition, otherwise the process would remove all data from your hard drive.

5) Select USB drive and the partition. Choose Restore and after restoration completes open System Preferences.

6) Open start-up disk application and select restore drive operation .

Restart the system and operating system to start the installation process.

This is a useful method, But in order to save your data from being lost a back up has to be created. In these cases, you need to perform "erase and Install" installation of Mac OS X and then perform Data Recovery Mac operations.

Mac file Recovery is best possible using Mac Recovery Softwares. They have simple graphical user interface to provide ease of use and efficient scanning techniques to ensure absolute recovery in all cases of data loss.