'Undelete' is an option to recover and restore the lost or deleted files form the computer by rewinding the operation. Without the in-built undelete feature, the retrieval of lost or deleted files is termed as data recovery and in Linux operating system based computers, it is popularly known as Linux data recovery.

There are many file systems, which have the built-in undelete feature to reverse an accidental-delete operation of important data. However, this feature is not available with every file system. Moreover, though the undelete feature is very much useful for the ones who have deleted some important files/folders and at the very next moment, realize that the data was extremely important to be recovered back, the feature also alarms for a security risk...

In case of a Linux operating system based computer, sometimes, the system fails to boot following any unsystematic system shut down. The reason can be anything from a possible file system corruption to an operating system malfunction, but at the end of everything, it is your valuable data in the drive, that has been inaccessible and you need to run any Linux data recovery software to recover them back.

Boot errors are always critical, as once you encounter those errors, your system fails to boot further resulting in the complete inaccessibility of your precious data in the drive. In a Linux system, there are many types of boot errors which may put you in trouble, one of them may be read as below:

"Creating Root Device mounting root filesystem (scsi:0:0:0:0) CRC error during data-in phase (scsi:0:0:0:0) CRC error in intermediate CRC packet scsi: aborting command due to timeout: pid 0, scsi 0, channel 0, id 0, lun 0 read (10)......"...

With technological advancement, now you can install and use more than one operating system in a single computer. This type of configuration, which is known as dual-boot, offers you to enjoy the features of multiple operating systems. However, sometimes, while making dual boot systems with different Linux operating systems the metadata structure gets corrupted. This kind of corruption results in the loss or inaccessibility of your valuable data and the need for advanced Linux data recovery arises to recover the data back.

In order to configure your system as dual-boot with another flavor of Linux, you are trying to install Fedora Core and come around a threatening error message. The error can be read as below:

"The partition table on device is corrupted. To create new partitions it must be initialized, causing the loss of all data on this drive"...

Most of the Linux operating systems are open source applications and are regularly modified in order to safe-guard the system against any new threat in the form of viruses, malwares or other technical drawbacks. An user can witness new changes and improvements in Linux almost every day. In spite of all the good things, still there are occasions, which lead to the loss or inaccessibility of valuable data from your Linux system. Among such instances of data loss, hard drive crash is one. Hard drive of your system contains many important data of yours' and anything like a crash of it can be an obvious hue and cry. However, with the help of advanced Linux data recovery, all your seemingly lost data can be recovered back.

When the hard drive crashes, though the data in the hard drive exists, you are unable to access the same. Apart from any physical damage, there can be many other problems behind the crashing of your hard drive, such as corruption of the file system, virus/malware infection, accidental deletion of the system files, operating system malfunction, other application contradictions etc. In any of these situations you may come across the following symptoms, which may signal a possible hard drive crash:...