Trying to backup ncp instance from RPi 3b+ to RPi 4 (4GB)

[anon75456558]

Thanks bro. Looks to be a permissions issue as described in this recent guide.

@anon75456558

If you see no errors you should now be able to access /mnt/directory/location on the local file system. Now we will change ownership:group to the data in this location from root to www-data since that is used by Nextcloud in Docker. See current permissions with $ ls -la /mnt/directory/location

$ sudo chown www-data:www-data -R /mnt/directory/location

Try changing recursive ownership from root to www-data as shown below. Note, you might want to include the parent directories as well:
$ sudo chown www-data:www-data -R /media/USBDRIVE1/nebula/backups/