I had an issue after upgrading my server to Ubuntu 22.04, as if the
existing host config wasn't getting applied. What I did to help trace
the error was opening a terminal on the client I was backing up and
running 'tail -f' on the /var/log/secure (or /var/log/authlog file for
Debian based systems) or whatever file logs ssh messages
(/var/log/messages) and starting the backup job. This allowed me to
view the messages real time and find the issue.
In my case, the old user config was not being honored. The job was
configured to connect to the client as the 'backuppc' user which can act
as root thanks to copying the relevant ssh key to root's authorized_keys
file. What the logs displayed was the wrong username being used to
connect ('root' instead of 'backuppc'). I detailed the issue here:
https://sourceforge.net/p/backuppc/mailman/message/37675192/
All that to say, you may not have the exact same issue as I did, but
tailing the logs files in real time could help.
-Brian J
On 7/10/2022 5:23 AM, Taste-Of-IT wrote:
Hi all,
i have latest BackupPC running on Debian 10. I upgraded one system to Debian
11. Backup before running well and without problems. After upgrading the client
it fails with these errors:
Got fatal error during xfer (rsync error: unexplained error (code 255) at
io.c(820) [generator=3.1.3beta1])
Backup aborted (rsync error: unexplained error (code 255) at io.c(820)
[generator=3.1.3beta1])
I searched and got different solution. One is the diffent speed of BPC and the
clilent, but thats not the case here. Another is the different versions of
rsync, which i use. But i didnt find a solution for that.
Has anyone a solution for that?
thx
Taste
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