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Re: Preventing rsync of copying always all files to my pen

On Sat, 2008-09-27 at 16:06 +0100, Paul Smith wrote:
> On Sat, Sep 27, 2008 at 2:27 PM, Adalbert Prokop <adalbert prokop gmx de> wrote:
> >> I have often to synchronize a directory from my computer to a pen
> >> drive. To accomplish this, I use the following command:
> >>
> >> rsync -urva --delete /home/psmith/mydirectory/
> >> /media/MYPEN/mydirectory/
> >
> > Which messages do you see and what mount options are used for mounting the
> > FAT partition? I've tried your scenario and I get messages like this:
> >
> > rsync: chgrp "/media/USBDRIVE/." failed: Operation not permitted (1)
> >
> > Generally using -a on ext[23] -> FAT transfers is not a good idea,
> > because -a implies -rlptgoD (according to man-pages) but FAT does not
> > support user or group information, links or devices
> >
> > I suppose a simplier "rsync -rtv" should accomplish what you need.
> >
> > You might even want to try unison - it can synchronise two folders in both
> > directions, copying newest files from one directory to its counterpart.
> Thanks, Adalbert. The messages that I get are:
> "rsync warning: some files vanished before they could be transferred
> (code 24) at main.c(1040) [sender=3.0.3]"
> This happens with accented filenames.
> After having removed all accents, I do not get any error message.
> Still the reported problem occurs: rsync needs to copy all files after
> umounting and subsequent mounting of my pen. This is the behavior that
> I am wanting to control: rsync should copy only modified files. Before
> unmounting my pen, rsyinc copies only modified files; but after having
> umounted my pen and mounted it again, rsync copies all files. Any
> ideas?

Actually it does the same thing even if you don't unmount the pendrive
(I just tried it).

According to the rsync(1) BUGS section: "When transferring to FAT
filesystems rsync may re-sync unmodified files.  See the comments on the
--modify-window option."


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