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Currently, what is the best way or tool to repair an ext3 partition?

There used to be fsck, but the disk is an external USB, and using the latest Ubuntu 10.10, I wondered if there might be a new tool that helps?

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3 Answers 3

up vote 1 down vote accepted

You can use fsck that works well, go in runlevel 1 :

init 1

Unmount your usb drive :

umount /dev/sda3

Run fsck :

fsck -t ext3 /dev/sda3
fsck -y /dev/sda3

Once fsck finished, remount the file system and go in multiusermode

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fsck should still work as the cable medium is inconsequential in this case. I'd be skeptical of any other tool that repairs ext3. It might just be a wrapper for fsck anyway.

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The "Disk Utility" in Ubuntu is really nice. You can find it in System, Administration, Disk Utility. It basically shows you a dashboard about all your systems disks. Plug in your external usb, select it from Disk Utilities menu and you will see chapter and verse about your disk. A little green blob indicates the disk is healthy, you can see the SMART status, partitioning info and "Check Filesystem" which I am assuming runs the relevant version of fsck per filesystem under the covers. I recommend using that as if there is something wrong with a drive that's usually a good indicator.

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