[CentOS] Re: Setting Group owner of files on USB drive

Fri May 30 21:09:19 UTC 2008
Scott Silva <ssilva at sgvwater.com>

on 5-30-2008 1:39 PM Matt Hyclak spake the following:
> On Fri, May 30, 2008 at 04:37:58PM -0400, Robert Moskowitz enlightened us:
>> I just got a 8Gb flash drive and went to copy a bunch of files onto it.  
>> I wanted to perserve everything, so I just took my archiving rsync 
>> command and altered it to go to localhost:/media/RALLY2/ (name of flash 
>> drive).  I am getting errors with changing the group owner.  Huh?
>> So I try to just use mkdir to create a directory on the flash drive.  
>> The directory has a group of root ???
>> So I try a chgrp and get:
>> [root at mine me]# chgrp me /media/RALLY2/Stuff
>> chgrp: changing group of `/media/RALLY2/Stuff': Operation not permitted
>> OK why can't I set the group to something other than root?
>> ls -lstr /media/
>> total 4
>> 4 drwxr-xr-x 3 me root 4096 May 30 16:28 RALLY2
>> and of course for /media:
>> 8 drwxr-xr-x   3 root root  4096 May 30 16:18 media
> Most likely the device is formatted as FAT32, which has no concept of
> permissions.
> Reformat it, ignore the errors, or modify your rsync command to not preserve
> uid/gid.
> Matt
Or if you want to preserve permissions, you will need to use tar or some other 

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