There are many alternatives to TestDisk for Linux if you are looking to replace it. The most popular Linux alternative is 
R-Studio. It's not free, so if you're looking for a free alternative, you could try 
GNU ddrescue or 
Foremost. If that doesn't suit you, our users have ranked more than 100 alternatives to TestDisk and eight of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to TestDisk are Scalpel (Free, Open Source), safecopy - Data Recovery (Free, Open Source), Scalpel 2.0 (Free, Open Source) and 
Scrounge NTFS (Free, Open Source).
TestDisk can convert dynamic disks to basic disks. If you're looking for more info about TestDisk like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.
R-Studio is a family of powerful and cost-effective undelete and data recovery software. Empowered by the new unique data recovery technologies, it is the most comprehensive data recovery solution for recovery files from FAT12/16/32/exFAT, NTFS, NTFS5 (created or updated by Windows 2000/XP/2003/Vista/2008/Win7), HFS/HFS+ (Macintosh), Little and Big Endian variants of UFS1/UFS2 (FreeBSD/OpenBSD/NetBSD/Solaris) and Ext2/Ext3/Ext4 FS (Linux) partitions.
GNU ddrescue is a data recovery tool. It copies data from one file or block device (hard disc, cdrom, etc) to another, trying hard to rescue data in case of read errors. The basic operation of ddrescue is fully automatic. That is, you don't have to wait for an error, stop the program, read the log, run it in reverse mode, etc. If you use the logfile feature of ddrescue, the data is rescued very efficiently (only the needed blocks are read).
Foremost is a console program to recover files based on their headers, footers, and internal data structures. This process is commonly referred to as data carving. Foremost can work on image files, such as those generated by dd, Safeback, Encase, etc, or directly on a drive. The headers and footers can be specified by a configuration file or you can use command line switches to specify built-in file types.
Scalpel is an open source data carving tool. Scalpel is a file carving and indexing application that runs on Linux and Windows. The first version of Scalpel, released in 2005, was based on Foremost 0.69. There have been a number of internal releases since the last public release, 1.60, primarily to support our own research. The newest public release v2.0, has a number of additional features, including: o minimum carve sizes. o multithreading for quicker execution on multicore CPUs.
safecopy is a data recovery tool which tries to extract as much data as possible from a problematic (i.e. damaged sectors) source - like floppy drives, hard disk partitions, CDs, tape devices, ..., where other tools like dd would fail due to I/O error
Data recovery program for NTFS file systems. Reads each block of the hard disk to and retrieves rebuilds file system tree on another partition.
Free Data recovery and Undelete software for Ext2/Ext3/Ext4 FS file system. Unformat , Unerase and Easy Recovery tool. R-Linux is a lite version of more powerful file recover utility R-Studio
