[CentOS] Which file system to use for a USB backup

Dale Dellutri daledellutri at gmail.com
Thu Mar 10 02:21:02 UTC 2011

On Wed, Mar 9, 2011 at 5:51 PM, Todd Cary <todd at aristesoftware.com> wrote:
> Les -
> A lot of the data needs to be moved in time to servers in other
> organizations (e.g. Rotary) or the data may be used as a
> repository for someone with just a notebook computer who would
> plug the HD into the computer.  This is not my main data backup;
> I use rsync for that.
> http://www.toddcary.com/rotary/ is one example of data that needs
> to be shared.
> Can rsync take ext4 data and copy it to a fat32 drive?

Yes, but you have to give up permissions and the modify time on a FAT32 is only
accurate to 2 seconds.  To rsync from an ext3/4 directory to a
plugged-in USB drive
use something like:

  rsync -av --no-p --modify-window=1 <srcdir>/ /media/<volname>/<targetdir>/

and you might need --delete.

More info at man rsync.

Another possibility: always use tar, and put something like a Windows version of
7zip executable on the USB drive as well as the data.  That way, Windows users
can get the files out the tar archive.

Dale Dellutri

More information about the CentOS mailing list