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welches dateisystem? brtfs weiss ich nicht, für die ext2/3/4 familie lässt fsck keine wünsche offen. Achtung: nicht auf gemounteten datenträgern ausführen!
man fsck
fsck -M -a /dev/sdb1
dd if=/dev/sda of=/dev/sdb
You're filesystem type is probably ext3 (the default in most Linux distros), which means it will usually pass an fsck as long its journal is clean. fsck -f will, as mentioned above, force a full check.However, if you have read errors on the disk, no amount of fsck will help dd - since dd really doesn't care about the content of the disk.To get dd to read the disk and continue on read errors, use dd conv=noerror,sync, which will continue on read errors and append null bytes to any block when there is a read error.After you have finished the backup, you should run fsck -f on the clone to get it up and running again.Another tip: If you backup the partition to a file, you can loopback mount it with mount -o loop filename.ext3 /mountpoint. Also, say you are cloning a 200G partition to a 500G drive, you can then run resize2fs /dev/sdx1 (where sdx is your new drive, partitioned with a single 500G partition), and the filesystem will be resized to 500G.Lastly, if the disk is in such a shape that it's giving you read errors, I would advise you to avoid turning the disk off and on until you're finished recovering data. In some failure modes, the disk will at some point simply no longer spin up or fail to be recognized by the OS, and at that point getting data out of the drive becomes quite expensive.
dd if=/dev/sda of=/dev/sdbwobei /dev/sda die Quellplatte und /dev/sdb das ziel ist.
Ja nicht vom laufenden system aus ein image machen
ZitatJa nicht vom laufenden system aus ein image machenist da linux noch nicht soweit?
Es sollte darauf geachtet werden, dass die beiden Partitionen gleich groß sind.