If your Mac OS X computer does not start properly, you might need to apply a disk repair utility on the affected hard drive to resolve startup issues. Mac OS X has two inbuilt disk repair utilities- fsck (a command line utility) and Disk Utility. When your system does not boot up at all, fsck is best option to handle the situation. It detects and repairs disk problems and allows you to properly access your data. But in some situations, fsck can not tackle the disk issues and your system remains inaccessible. This behavior results into serious data loss situations and you need to opt for Mac Data Recovery solutions to get your mission critical and precious data back.
When you run fsck on a Mac OS X computer, which is facing some start up issues, fsck might report any of the below given error messages:
Volume bitmap needs minor repair
Invalid volume free block count
Volume header needs minor repair
Can't locate IOPlatformMonitor
Incorrect block count for file
The disk check completes with any of these error messages and the problem can not be sorted out. In this case, you need to find out the cause of the issue and resolve it by carrying out Data Recovery Mac.
Root of the issue
As stated in the above error messages, this behavior of Mac OS X occurs due to corrupt or missing hard drive data structures. These disk data structures include volume bitmap, volume header, file system, volume block count, boot block, MBR (Master Boot Record) and so forth. Due to corruption to these system resources, the stored data can not be located on the hard drive and critical data loss situations occur.
How to fix startup issues in Mac OS X
If you are using a journaled Mac file system, then you can safely ignore all these errors. But in case of non-journaled file system, these issues might prove harmful for your data and you need to opt for
Mac Recovery. This is best possible through powerful and adanced third party applications.
These tools use efficient scanning mechanisms to systematically scan entire hard drive and extract as much data as possible from it. You can use Mac Data Recovery software very easily, even without having sound technical skills as they come equipped with self-descriptive and interactive graphical user interface.
Stellar Phoenix
Macintosh Data Recovery is the most excellent application to handle most of the data loss situations in Mac. To recover data from unbootable Mac systems, you can use boot DVD of this software. It is designed for Mac OS X 10.5 Leopard, 10.4 Tigers and 10.3.9 Panther.
