Sometimes, when you try to boot your Mac OS X system, it behaves abnormally. The reason for the abnormal behavior of the system in most cases revolves around corruption in file system (HFS, HFS+, or HFS Wrapper). Few common reasons liable for file system corruption are improper system shutdown, virus attack, kernel panic, and more. To overcome any file system corruption issue, irrespective of the cause of logical crash, a Mac user can execute FSCK command. While the command is competent enough to resolve file system corruption issues in most cases, it might fail to resolve in most cases. In such situations, the only option left for the Mac user to get rid of file system corruption is by re-installing Mac OS X and restoring the data from an updated backup. However, if in case of insufficient backup file data, the user can opt for a third-party Mac Data Recovery application.
You might encounter any of the three startup issues at the startup of your Mac OS X system:
Your system starts and displays the below error message on the text-only environment:“file system dirty, run fsck.”
Your system does not load the 'Desktop' after you login the administrator user name and password.
Your system does not reach the login screen.
The result for all the above situations remains the same – unbootability of Mac OS X and inaccessibility of all the files saved on the Mac hard drive.
All the above problems startup when the file system gets corrupted or damaged.
To get past the startup issues caused due to above reason, you will need to follow the below steps:
1.Try to boot your Mac OS X machine in 'Safe mode'.
2.Use 'Disk Utility' option after inserting the installation disc.
3.In case both the above measures fall short in resolving file system corruption, then run '/sbin/fsck -fy' command.
4.However, if the FSCK command also fails, then you will need to format the hard drive and reinstall new file system.
Although, re-installation allows you to get rid of the above file system corruption issues, it also results in making all the previously saved files in the hard drive inaccessible. To access those files, in case of no backup availability, you will need to opt for an effective Mac Disk Recovery utility. A commercial Mac File Recovery tool incorporates effective recovery tools to recover all formatted files.
Stellar Phoenix Macintosh Data Recovery is a recovery tool that recoups all lost files after formatting of your hard drive. Compatible with Mac OS X 10.3.9, 10.4 Tiger, 10.5 Leopard, and 10.6 Snow Leopard, the read only Mac File Recovery tool recovers data from HFS, HFS+, HFSX, HFS Wrapper, and FAT file systems volumes.
Mac Machine Halts At Login Screen