Re: Setting Group owner of files on USB drive

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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@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 archiver.

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