On 5/22/2023 7:48 AM, G.W. Haywood via BackupPC-users wrote:
There have been issues with differing versions of rsync, if you search
the list archives you'll find plenty of mention of that - you'll even
see the exact same error message which you posted.
I concur. I've seen similar issues with interoperability between Cygwin
32-bit rsync for 32-bit PCs and 64-bit rsync, when I was trying to move
Thunderbird profiles to a new 64-bit Windows PC. I had to down-rev rsync
to the 32-bit version to accomplish that task.
My Pi 4B is running 64-bit Bullseye from February. (I need to build a
new microSD with the May release.) I'm able to back it up with BackupPC
running on my CentOS 7 server. rsync on Bullseye is 3.2.3 protocol
version 31. I haven't yet tried using a Pi as a BackupPC server, though.
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