Photorec
From Notes_Wiki
<yambe:breadcrumb>Recovery_tools|Recovery tools</yambe:breadcrumb>
photorec
photorec comes with testdisk package. After creating image of a partition using testdisk use
photorec image.dd
Go to file options and select recovery for all file types. Choose appropriate output folder and recover all files possible.
Some steps learned using http://opensourceforu.efytimes.com/2011/09/recover-deleted-files-in-linux/