btrfs problem 12.04

Johnny Rosenberg gurus.knugum at
Thu Oct 29 08:54:38 UTC 2015

2015-10-29 9:15 GMT+01:00 Tony Baechler <bats at>:

> On 10/28/2015 12:55 PM, Johnny Rosenberg wrote:
>> Copying the files from the USB drive from an Ubuntu 14.04 Live USB stick
>> worked fine. The only problem was that I needed to be root to do it, which
>> caused all the files to be owned by root, but I fixed that with a simple
>>  find -exec chown command in the Ubuntu 12.04 terminal.
> Not that it matters now, but if you use rsync with the -a switch, it
> preserves file permissions and times.

Yes, I know. I just started Nautilus as root and used the mouse. I guess
didn't think that through before going to action. The -a flag works with
the cp command too, so I guess rsync isn't even necessary in simple cases
as this one.

>   I use it all the time for copying files, both locally and from the
> network.

I use it all the time too, in my own daily backup script, which I used to
get the files to the USB drive in the first place. I didn't include recover
in my backup script though, since that operation is so rare. So far it has
been years between each time I would need to recover anything.

>   Assuming your USB drive is mounted under /media/1 and the drive you're
> copying to is under /media/2, a command like this should work:
> rsync -av /media/1 /media/2
> The -v switch turns on verbose output and isn't necessary, but I like to
> know the current file being copied and the speed.  The -a switch stands for
> archive and turns on the permissions preservation.

Thanks for your input!

Johnny Rosenberg

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