I'm getting a confusing error from rsync and the initial things I'm finding from web searches (as well as all the usual chmod'ing) are not solving it:
rsync: failed to set times on "/foo/bar": Operation not permitted (1)
rsync error: some files could not be transferred (code 23)
at /SourceCache/rsync/rsync-35.2/rsync/main.c(992) [sender=2.6.9]
It seems to be working despite that error, but it would be nice to get rid of that.
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rsync
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I had the same problem. For me the solution is to delete the remote file and let rsync create again.
I've seen that problem when I'm writing to a filesystem which doesn't (properly) handle times -- I think SMB shares or FAT or something.
What is your target filesystem?
As @racl101 has commented on an answer, this problem might be related to the folder owner. The rsync command should be done by the same user as the folder owner's one. If it's not the same, you can change it.
chown -R userCorrect /remote/path/to/foo/bar
This happened to me on a partition of type xfs (rw,relatime,seclabel,attr2,inode64,noquota), where the directories where owned by another user in a group we were both members of. The group membership was already established before login, and the whole directory structure was group-writeable. I had manually run sudo chown -R otheruser.group directory and sudo chmod -R g+rw directory to confirm this.
I still have no idea why it didn't work originally, but taking ownership with sudo chown -R myuser.group directory fixed it. Perhaps SELinux-related?
This error might also pop-up if you run the rsync process for files that are not recently modified in the source or destination...because it cant set the time for the recently modified files.
The problem in my case was that the "receiver mountpoint" was incorrectly mounted. It was in read-only mode (for some extrange reason). It looked like rsync was copying the files, but it was not. I checked my fstab file and changed mount options to default, re-mount file system and execute rsync again. All fine then.
The issue is probably due to /foo/bar not being owned by the writing process on a remote darwin (OS X) system. A solution to the issue is to set adequate owner on the remote site.
Since this answer has been voted, and therefore has been hopefully useful to someone, I'm extending it to make it clearer.
The reason why this happens is that rsync is probably trying to set an arbitrary modification time (mtime) when copying files.
In order to do this darwin's system utime() function requires that the writing process effective uid is either the same as the file uid or super user's one, see opengroup utime's page.
Check this discussion on rsync mailing list as reference.
It could be that you don't have privileges to some of the files. From an administrator account, try "sudo rsync -av " Alternately, enable the root account and sign in as root. That should allow you to completely hose your system and brute force your rsync! ;-) I'm not sure if the above mentioned --extended-attributes will help, but I threw it in too, just for good measure.
Source: Stackoverflow.com