backing up ntfs disk using rsync on ubuntu

Posted by user70366 on Super User See other posts from Super User or by user70366
Published on 2011-03-06T04:45:57Z Indexed on 2012/11/25 17:07 UTC
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ubuntu

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backup

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ntfs

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rsync

For a long time I was using windows. I have a separate drive I use to keep copies of my media files, photos etc. on, which I periodically backup to an external drive. In Windows I used SyncToy to do this. After my Windows stopped booting, I decided to switch to Linux (Ubuntu 10.10). That seems to be going fine, but now I want to backup my drive to the external drive like before.

Mostly the two drives will be already the same with maybe about 10GB of extra files added.

So I try to use rsync to synchronise the two drives like this:

rsync --dry-run -rvlt --modify-window=1 /media/Antonio1TB/Backup /media/FREECOM\ HDD/Backup

The problem is the dry run indicates that every file on the drive will be copied. Not just the files I have recently added.

What is the correct command to synch two NTFS drives under Ubuntu so that files that already exist don't get copied again? Thanks.

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