Richard-
Per this page
https://rwmj.wordpress.com/2013/04/22/using-rsync-with-libguestfs/
We are trying to get the libguestfs API guestfs_rsync_out to work. Weve tried combinations similar to:
guestfs_rsync_out(g, /HostShared, rsync://root@10.0.1.90:2999/backup/ -av, -1)
surrounding it with APIs as in the recipe examples, for example replacing libguestfs_cat(), with no luck. In the above example the "backup" rsync module name matches the script on Richard's wordpress.com blog page (above link). Typically in the rsync daemon log we see something like:
receiving file list sent 17 bytes received 24 bytes total size 0
but no data is transferred. We are successful using rsync from the Linux command line, and we can get libguestfs APIs like guestfs_cat() to work fine. But weve had zero luck with rsync_out over the last week.
I think it's really hard to diagnose problems without turning on debugging in libguestfs:
http://libguestfs.org/guestfs-faq.1.html#how-do-i-debug-when-using-the-api
Unfortunately there are no actual API examples online, no recipes on the libguestfs.org site, etc. Does anyone know where there are some actual libguestfs_rsync_out() working examples?
The only example I can point to is this test:
https://github.com/libguestfs/libguestfs/blob/master/tests/rsync/test-rsync....
Thanks very much. In our example, the libguestfs API syntax required turns out to be: guestfs_rsync_out(g, "/Win7Folder", "rsync://root@10.0.1.90:2999/backup", GUESTFS_RSYNC_OUT_ARCHIVE, 1, -1) This produces a trace result: libguestfs: trace: rsync_out "/Win7Folder" "rsync://root@10.0.1.90:2999/backup" "archive:true" Also, to avoid chgrp and other permission related messages, we had to add: uid = 0 gid = 0 in our rsyncd.conf file (we are running rsync daemaon as root). Now we are testing guestfs_rsync_out() in a loop that runs every 1 sec. We hope to achieve continuous synchronization with a live Win7 guest. As I mentioned before, we're only reading from the Win7 guest, and not a lot of data is involved, maybe a few files up to 50 MByte. These files are not changing size, just contents. -Jeff