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safecopy

NAME

SAFECOPY - A data recovery tool

SYNOPSIS

SAFECOPY [OPTIONS] SOURCE TARGET

DESCRIPTION

A data recovery tool.

Safecopy is a data recovery tool which tries to extract as much data as possible from a seekable, but problematic (i.e. damaged sectors) source - like floppy drives, harddisk partitions, CDs, ..., where other tools like dd would fail doe to I/O errors.

Safecopy tries to get as much data from the source as possible without device dependent tricks. For example to get an ISO image from a copy protected or otherwise damaged CD-ROM, cdrdao and bin2iso would possibly do a better and faster job.

OPTIONS

Usage: safecopy [options] <source> <target>

-b <bytes>

Blocksize in bytes, also used for skipping offset when searching for the end of a bad area. Set this to physical sectorsize of your media. Default: 512

-r <bytes>

Resolution in bytes when searching for the exact beginning or end of a bad area Bigger values increase performace at potential costof valid data close to damaged areas. Default: 4

-s <blocks>

Start position where to start reading. Will correspond to position 0 in the destination file. Default: block 0

-l <blocks>

Length of data to be read. Default: size of input file.

-h | --help

Show this text.

DESCRIPTION OF OUTPUT

. :

Between 1 and 1024 blocks successfully read.

_ :

Read was incomplete. (possibly end of file) blocksize is reduced to read the rest.

> :

Read failed, reducing blocksize to read partial data.

[xx](+yy) :

current block and number of blocks (or bytes) continuously read successfully up to this point.

X :

Read failed on block with minimum blocksize and is skipped. Unrecoverable error, destination file is padded with zeros. Data is now skipped until end of the unreadable area is reached.

< :

Successfull read- test after the end of a bad area causes backtracking to search for the first readable data.

[xx](+yy) :

Current block and number of blocks (or bytes) of recent continuous unreadable data.

AUTHOR

safecopy was written by Corvus Corax (corvuscorax@cybertrench.com)

This manual page was written by Juan Angulo Moreno <juan@apuntale.com>, for the Debian project (but may be used by others).