FAQ.caslavka.cz

http://www.dolezel.info/navody/zachrana-dat-z-poskozeneho-disku

http://www.unixwiz.net/techtips/recovering-ext2.html

Copying a drive is usually done with the dd command, but a few non-obvious options are required in order for this:

# dd if=/dev/hdb of=/dev/hdd bs=512 conv=noerror,sync

Here we have:
    * if=/dev/hdb - Input File is the failing hard drive
    * of=/dev/hdd - Output File is the spare hard drive
    * bs=512 - Block Size = 512 bytes
    * conv=noerror,sync - don't stop on error, pad each input block to bs


http://dcfldd.sourceforge.net/
= "vylepšená" verze dd

pokud jsou spatne sektory, zkopiruje se na novou partition i zaznamy vadnych sektoru!
reset napr. pomoci Ultimate Boot CD, tool Partition Saving
http://www.partition-saving.com/