Re: Troubleshoot Pi server to backup Windows 10 machine

Hi,

you need to check step by step if your setup is correct:

1. does `ssh [user]@[windows-machine-hostname].local` give you a shell 
on the Windows machine? If not, something is wrong with your SSH setup.
2. once you've done this, does `where rdiff-backup` show you the right 
path? If not, you need to add the directory to your PATH, or move 
rdiff-backup.exe to a directory of your PATH (echo %PATH% should tell 
you which ones).
3. and normally, at this point, `rdiff-backup --version` should give you 
the right version, else something is really strange.

Hope this helps, let us know how it goes,
Eric

On 14/12/2022 03:40, Thomas Ellison wrote:
> Forgive me in advance for any of my ignorance here. I'm a noob to this. I
> have a headless Raspberry Pi on my LAN that I just set up with Ubuntu
> server 22.04 LTS, xrdp,and xfce that has an external USB hard drive
> connected and mounted to it. I currently have it successfully set up where
> I can SSH and RDP with it and have its external hard drive mapped as a
> network drive on my Windows 10 machine. I also have successfully set up my
> Pi where it will SSH to my Windows 10 machine. What I'm trying to do to no
> avail is have the Pi where it will eventually via cron job remotely call up
> my Windows machine and backup any new contents of a folder on its desktop
> to a folder on the external drive of the Pi.
> 
> I've installed rdiff backup on both the Pi and Windows machine. Both have
> version 2.0.5. So far after connecting via RDP to my Pi and opening a
> terminal I've used the following command with no success.
> 
> rdiff-backup -v9 --print-statistics
> [user]@[windows-machine-hostname].local::c:/Users/[user]/Desktop/test
> /mnt/pi_hdd/test
> 
> After entering the password for connection this is the output
> 
> 'rdiff-backup' is not recognized as an internal or external command,
>> operable program or batch file.
>> 2022-12-13 21:29:46.509029 -0500  <CLIENT-2910>  Fatal Error: Truncated
>> header string (problem probably originated remotely)
>>
>> Couldn't start up the remote connection by executing
>>
>>      ssh -C [user]@[windows-machine-hostname].local rdiff-backup --server
>>
>> Remember that, under the default settings, rdiff-backup must be
>> installed in the PATH on the remote system.  See the man page for more
>> information on this.  This message may also be displayed if the remote
>> version of rdiff-backup is quite different from the local version (2.0.5).
>> 2022-12-13 21:29:41.903408 -0500  <CLIENT-2910>  Using rdiff-backup
>> version 2.0.5
>> 2022-12-13 21:29:41.903618 -0500  <CLIENT-2910>   with cpython
>> /usr/bin/python3 version 3.10.6
>> 2022-12-13 21:29:41.911911 -0500  <CLIENT-2910>   on
>> Linux-5.15.0-1021-raspi-aarch64-with-glibc2.35, fs encoding utf-8
>> 2022-12-13 21:29:41.914347 -0500  <CLIENT-2910>  Executing ssh -C
>> [user]@[windows-machine-hostname].local rdiff-backup --server
>> 2022-12-13 21:29:41.917329 -0500  <CLIENT-2910>  Client sending (0):
>> ConnectionRequest: Globals.get with 1 arguments
>> 2022-12-13 21:29:41.917652 -0500  <CLIENT-2910>  Client sending (0):
>> version
>>
> 
> I thought maybe I need to use the remote-schema to for the
> C:\Windows\System32\OpenSSH\ssh.exe but, I'm not sure on the syntax to
> include that. Is what I'm wanting to accomplish even possible? Thanks in
> advance