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Accepted
Alex Poulos
Asked: 2011-12-27 04:58:16 +0800 CST

Ubuntu Natty Froze when copying files to my Ext4 External Drive, files can be recovered if corrupted?

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I heard that Ext4 Was more stable in these conditions, but how can I be sure that my files didn't get corrupted in the process? I heard that because of Ext4 journaling file that the files aren't very easy to get corrupted as compared to NTFS (which is what I switched from).

Anyone to help me out with any of this?

11.04

2 Answers

  1. I agree with mikewhatever. Additional this might help:

    The source shouldn't be damaged. The destination could be incomplete or so. If you want to see what was copied correctly and what not you can use diff or rsync. Type

    rsync -nrcv source destination

    To get a list of files which haven't been copied correctly. Leave out the parameter c to actually copy the data again.

    To check a linux file system you can use fsck (NTFS should be better checked by windows itself). To check all ext3 and ext4 partitions during next system boot you can use:

    sudo touch /forcefsck

    Don't use fsck on mounted partitions!

    Graphical tool

    You can use the Disk Utility (run it form System / Administration or ALT + F2 and palimpsest). This is a graphical tool for hard disks and other storage devices. You'll find your harddisk there. Unmount it (there is a button there) and click Check Filesystem.

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  2. Best Answer

    Any file system with journaling is less prone to corruption, including NTFS. That said, it has nothing to do with freezing when copying. If the data has only been copied partway, there is nothing a file system can do. Just copy the files again, overwriting the files that had already been copied.

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