[mdlug] Copying files from one mounted drive to another mounted drive on Pi

[email5000 at usa.com]

Thanks Carl, that shed some light on it for me.

In the context of the basic question, I was trying to determine why I
couldn't get anything to copy using the GUI, unless it was a 'refresh'
issue. I started this 'project' thinking it would be quicker to attach
the naked drive inside my Win 10 box using File Explorer windows. All
the drives are SATA III capable, tho' all the hardware is level II.
Either way, it appeared that, tho' it may take a bit longer to copy
everything over (II vs III = 2x longer), it should complete within a
'reasonable' amount of time. The problem I was encountering when I did
the drag-n-drop was that Win 10 appeared to take an inordinate (read it
as 'painful') amount of time just calculating SOMETHING before any
transfers ever occurred; and it appeared to eventually work. For small
folders, it seemed reasonable, but for any folder that had any
significant (>= ~1 MB) it was just taking forever. And I have some
rather large folders to copy.

I thought that maybe the Pi would be faster, and not spend so much time
playing with itself; but I had the problem with the file manager (fm)
windows, hence my question. So, up to speed.....

When I re-booted the Pi after reading the response, I used the mount
command to mount the NAS, then simply plugged in the corresponding USB
case with the target drive (to copy all the data to). Now when I looked
at the fm window I could get folders on the NAS to copy to the target
USB drive.

However, what is confusing is that some folders appear in the fm window,
and other folders DO NOT appear in the command line. I'm stumped. I can
see the folders in the fm window that I [thought] I copied, but they
just don't show at the command line. Up to this point, I did try the
command that was recommended (rsync) on a given folder, and that
appeared to complete quickly; but it didn't show up in the fm window
(refresh issue?). Since I can not see all the folders copied in EITHER
the fm window OR the command line, I'm tempted to just wipe the target
drive and apply Carl's suggestion, 'cuz that seems to work well. Wiping
it at this point is not too much of a loss because I haven't [attempted
to] copy all that much [yet].

Any clues, here?
-Rich

On 3/23/2020 21:24, Carl T. Miller wrote:
> All you're missing is the command line.
>
> First, run "df -h" to ensure that the drives are mounted
> properly and appear to have the right amount of free
> space.
>
> Next, run "ls -ld" for each of the mountpoints.  Verify
> that the permissions are right.
>
> Then use rsync to copy the files.  Something like:
> rsync -aHvx --progress /mnt/nas/ /mnt/hdd
>
> That should do the trick.  Let us know how it goes.
>
> c
>
>
> On 3/23/20 3:05 PM, email5000 at usa.com wrote:
>> I think I'm missing something...
>>
>> I have two mounted drives on my Pi - my NAS and another HDD in a USB
>> case that I'm using to backup the data. I've copied data to/from the NAS
>> before; and regarding TO the NAS to the Pi, I needed to change the
>> permissions on the mount point to allow the writing. I've done all that.
>>
>> I presently have two 'file explorer' type windows - obviously one for
>> the NAS and one for the external HDD.  Obviously both are mounted. As
>> far as I can tell, all permissions are copacetic. When I attempt to
>> 'drag-and-drop'  the folder on the NAS to the folder on the USB HDD, the
>> file image being dragges scoots back to the other side.
>>
>> What am i missing?
>>
>> Thanks.
>>
>> _______________________________________________
>> mdlug mailing list
>> mdlug at mdlug.org
>> http://mdlug.org/mailman/listinfo/mdlug
>
> _______________________________________________
> mdlug mailing list
> mdlug at mdlug.org
> http://mdlug.org/mailman/listinfo/mdlug