Hi,
Yes i confirm
In my platform :
dpkg-query -l
xxxxxxxxx
ii rsync 3.0.9-4 amd64 fast, versatile, remote (and local) file-copying tool
xxxxxxxxx
In preconfiguredOS :
dpkg-query -l
xxxxxxxxx
ii rsync 3.0.9-4 amd64 fast, versatile, remote (and local) file-copying tool
xxxxxxxxx
But, in installation guide (https://minecraft.codeemo.com/mineoswiki/index.php?title=MineOS-node_(apt-get)) :
rsync
MineOS requires rsync 3.1.0+…
In my plateform 
mc@debian:~$ rsync --version
rsync version 3.0.9 protocol version 30
Copyright (C) 1996-2011 by Andrew Tridgell, Wayne Davison, and others.
Web site: http://rsync.samba.org/
Capabilities:
64-bit files, 64-bit inums, 64-bit timestamps, 64-bit long ints,
socketpairs, hardlinks, symlinks, IPv6, batchfiles, inplace,
append, ACLs, xattrs, iconv, symtimes
rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you
are welcome to redistribute it under certain conditions. See the GNU
General Public Licence for details.
In preconfiguredOS
root@core ~# rsync --version
rsync version 3.1.1 protocol version 31
Copyright (C) 1996-2014 by Andrew Tridgell, Wayne Davison, and others.
Web site: http://rsync.samba.org/
Capabilities:
64-bit files, 64-bit inums, 64-bit timestamps, 64-bit long ints,
socketpairs, hardlinks, symlinks, IPv6, batchfiles, inplace,
append, no ACLs, xattrs, iconv, symtimes, prealloc
rsync comes with ABSOLUTELY NO WARRANTY. This is free software, and you
are welcome to redistribute it under certain conditions. See the GNU
General Public Licence for details.
euhhh. why preconfiguredOS it has this version while the version of the package is lower.
Mineos.log after test “copy to server” with error in WEB-GUI
{“level”:“info”,“message”:“[TEST2_Import] Watching for file generation: logs/latest.log”,“timestamp”:“2016-01-26T18:25:39.879Z”}
{“level”:“info”,“message”:“[TEST2_Import] latest.log created! Watchfile logs/latest.log closed”,“timestamp”:“2016-01-26T18:25:40.532Z”}
{“level”:“error”,“message”:“[TEST2_Import] Create tail on logs/latest.log failed”,“timestamp”:“2016-01-26T18:25:40.533Z”}
{“level”:“info”,“message”:“[TEST2_Import] Watching for file generation: logs/latest.log”,“timestamp”:“2016-01-26T18:25:40.533Z”}
{“level”:“info”,“message”:“[TEST2_Import] latest.log created! Watchfile logs/latest.log closed”,“timestamp”:“2016-01-26T18:25:41.239Z”}
{“level”:“error”,“message”:“[TEST2_Import] Create tail on logs/latest.log failed”,“timestamp”:“2016-01-26T18:25:41.239Z”}
{“level”:“info”,“message”:“[TEST2_Import] Watching for file generation: logs/latest.log”,“timestamp”:“2016-01-26T18:25:41.240Z”}
{“level”:“info”,“message”:“[TEST2_Import] latest.log created! Watchfile logs/latest.log closed”,“timestamp”:“2016-01-26T18:25:41.944Z”}
{“level”:“error”,“message”:“[TEST2_Import] Create tail on logs/latest.log failed”,“timestamp”:“2016-01-26T18:25:41.944Z”}
{“level”:“info”,“message”:“[TEST2_Import] Watching for file generation: logs/latest.log”,“timestamp”:“2016-01-26T18:25:41.945Z”}
{“level”:“info”,“message”:“[TEST2_Import] latest.log created! Watchfile logs/latest.log closed”,“timestamp”:“2016-01-26T18:25:42.653Z”}
{“level”:“error”,“message”:“[TEST2_Import] Create tail on logs/latest.log failed”,“timestamp”:“2016-01-26T18:25:42.654Z”}
{“level”:“info”,“message”:“[TEST2_Import] Watching for file generation: logs/latest.log”,“timestamp”:“2016-01-26T18:25:42.654Z”}
{“command”:“copy_to_server”,“server_name”:“TEST3_new”,“version”:“1.8.8”,“type”:“spigot”,“level”:“info”,“message”:“[WEBUI] Received emit command from 192.168.128.1:mc”,“timestamp”:“2016-01-26T18:25:42.900Z”}
{“level”:“info”,“message”:“[TEST2_Import] latest.log created! Watchfile logs/latest.log closed”,“timestamp”:“2016-01-26T18:25:43.482Z”}
{“level”:“error”,“message”:“[TEST2_Import] Create tail on logs/latest.log failed”,“timestamp”:“2016-01-26T18:25:43.482Z”}
{“level”:“info”,“message”:“[TEST2_Import] Watching for file generation: logs/latest.log”,“timestamp”:“2016-01-26T18:25:43.482Z”}
{“level”:“info”,“message”:“[TEST2_Import] latest.log created! Watchfile logs/latest.log closed”,“timestamp”:“2016-01-26T18:25:44.413Z”}
{“level”:“error”,“message”:“[TEST2_Import] Create tail on logs/latest.log failed”,“timestamp”:“2016-01-26T18:25:44.414Z”}
{“level”:“info”,“message”:“[TEST2_Import] Watching for file generation: logs/latest.log”,“timestamp”:“2016-01-26T18:25:44.414Z”}
{“level”:“info”,“message”:“[TEST2_Import] latest.log created! Watchfile logs/latest.log closed”,“timestamp”:“2016-01-26T18:25:45.210Z”}
{“level”:“error”,“message”:“[TEST2_Import] Create tail on logs/latest.log failed”,“timestamp”:“2016-01-26T18:25:45.211Z”}
{“level”:“info”,“message”:“[TEST2_Import] Watching for file generation: logs/latest.log”,“timestamp”:“2016-01-26T18:25:45.211Z”}
{“level”:“info”,“message”:“[TEST2_Import] latest.log created! Watchfile logs/latest.log closed”,“timestamp”:“2016-01-26T18:25:45.886Z”}
Thanks you for assistance 