topic Re: What are the prerequisites to make RSYNC work ? in Operating System - HP-UX

What are the prerequisites to make RSYNC work ?

Yaboto — Wed, 22 Apr 2009 21:35:41 GMT

Hi,

Are there any patches or software I need to install to make RSYNC work ?

Regards,
Berenger

Re: What are the prerequisites to make RSYNC work ?

James R. Ferguson — Wed, 22 Apr 2009 21:56:38 GMT

Hi:

You need to satisfy the runtime depenedencies (and compile-time too, if you compile from source): See:

http://hpux.connect.org.uk/hppd/hpux/Networking/Admin/rsync-3.0.5/

Regards!

...JRF...

Re: What are the prerequisites to make RSYNC work ?

Patrick Wallek — Wed, 22 Apr 2009 21:58:31 GMT

Have you already installed rsync? If not, that's a good starting point.

You can get it from here:
http://hpux.connect.org.uk/hppd/hpux/Networking/Admin/rsync-3.0.5/
(BE SURE to pay attention to the dependencies list!!)

If you are running 11iv2/11.23, you can get RSYNC from HP at:
http://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=HPUXIEXP1123

If you are running 11iv3/11.31, you can get RSYNC from HP at:
http://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=HPUXIEXP1131

If you have already installed rsync, are you having trouble getting it to work? If so, what is the problem? Do you get any errors?

Re: What are the prerequisites to make RSYNC work ?

Yaboto — Mon, 27 Apr 2009 10:27:51 GMT

Thanks for your replies.
I have already installed the RSYNC. Here is bellow the error message that pops up:

# rsync
/usr/lib/hpux32/dld.so: Unable to find library 'libpopt.so'.
Killed
#

Thanks for your help.

Regards,
Berag

Re: What are the prerequisites to make RSYNC work ?

Steven E. Protter — Mon, 27 Apr 2009 10:57:17 GMT

Shalom,

Just because rsync is installed does not mean it will work.

The rsync depot will install with errors.

The links provided to you by JRF and Patrick include two major things:
Install dependencies, which you have met if you have used the same depot they pointed you to.
Run time dependencies, which your error indicates you have not met.

There is no shortcut to running through the list, downloading the dependencies and installing them.

The fun part is some of the dependencies have dependencies.

You need to get them all and install them.

SEP

Re: What are the prerequisites to make RSYNC work ?

Bryan King_2 — Sun, 21 Jun 2009 01:04:59 GMT

The link provided for rsync installation on HP-UX 11.31 downloads the one for 11.23.

Where can I get the libpopt.so for HP-UX?

I'm running into the same issue when attempting to run rsync.

root@capleorad# rsync
/usr/lib/hpux32/dld.so: Unable to find library 'libpopt.so'.
Killed

Thanks,
Bryan

Re: What are the prerequisites to make RSYNC work ?

Duncan Edmonstone — Sun, 21 Jun 2009 08:36:03 GMT

Bryan,

You should really start your own thread...

Not sure why you think the link goes to an 11.23 version - I can see an 11.31 version right here:

http://hpux.connect.org.uk/hppd/hpux/Networking/Admin/rsync-3.0.6/

As for the error - well it seems entirely likely to me that libpopt is part of the popt package that is listed as a run-time dependency of rsync... you *did* install popt (and gettext and libiconv) as well didn't you??

HTH

Duncan

Re: What are the prerequisites to make RSYNC work ?

josasere — Mon, 20 May 2013 09:42:57 GMT

I have installed RSYNC and the run-time dependencies. but it still did not work on my hpux11.31 (itanium) box. swlist shows its installed. I restarted the server. rsync did not appear under /etc/services. what do I do?

# rsync
sh: rsync: not found.

Re: What are the prerequisites to make rsync work?

Dennis Handly — Mon, 20 May 2013 10:23:02 GMT

>sh: rsync: not found.

What is the absolute path of rsync?

Re: What are the prerequisites to make RSYNC work ?

Matti_Kurkela — Mon, 20 May 2013 12:36:02 GMT

Try:

/usr/local/bin/rsync

and if that works, consider adding /usr/local/bin to /etc/PATH for convenience. Or you might symlink /usr/local/bin/rsync to /usr/bin to make sure it is always in the PATH for all users ("ln -s /usr/local/bin/rsync /usr/bin/rsync").

Rsync has two main "modes": it can run on-demand through a shell session (preferably ssh, but rsh can also be used), or it can be run as a dedicated rsync server process.

When you run rsync with a single colon in remote pathnames like this, you are using the on-demand mode:

rsync -aPz /some/file/or/directory remotehost:/some/remote/directory/
or
rsync -aPz remotehost:/some/file/or/directory /some/local/directory/

The advantages of on-demand mode are:

does not require a separate authentication configuration (if remote shell session works, rsync works too)
if ssh session is used as a tunnel for rsync (which is usually the default), the transferred data is protected by SSH encryption
does not require a dedicated rsync server process
it works very much like scp or rcp, which you may already be familiar with (except that rsync has much more options)

The disadvantage is that it requires a normal user account to exist on the remote host, and on high-volume rsync servers, the number of starting/stopping shell sessions may cause unnecessary load to the system.

The other mode is to set up a dedicated rsync server process. When accessing a dedicated rsync server, you use either rsync:// URLs or double colons on the rsync command line. For example:

rsync rsync://user@remotehost/some/directory/or/file /some/local/directory/
or
rsync user@remotehost::/some/directory/or/file /some/local/directory/

Setting up a dedicated rsync server process is optional, and that's why installing the rsync depot does not automatically do it for you.

You might want to set up a rsync server process if you are planning to set up your system as a high-volume download location (e.g. a world-wide main distribution point for software DVD images) or want to set up some rsync file transfer accounts with no corresponding Unix account on the system.

Since the traffic to and from a dedicated rsync server process is not encrypted at all, a rsync server is mostly applicable for public data only, unless you use VPNs or take other steps to secure your rsync server connections.

If you choose to set up a dedicated rsync server process, you'll need to:

add an entry for dedicated rsync server port to your /etc/services, if it does not already exist (for initrd). Usually, the port is 873/tcp, but you can choose any port you want.
configure your inetd (or xinetd) to start the actual rsync server when an incoming connection is detected on the dedicated rsync server port. You'll find examples in rsync documentation: http://rsync.samba.org

Re: What are the prerequisites to make RSYNC work ?

coollllllllllll — Thu, 23 May 2013 08:40:32 GMT

Hi Matti ,

My exp with rsync is really bad.

I tried to sync one filesystem from one to another ( DC to DR ) ;

what happened was files got corrupted at other end , that was verified by making application up at that end.

Later when we came back to our dc site all was fine.

We suspect rsync could have caused this.

Re: What are the prerequisites to make RSYNC work ?

Matti_Kurkela — Thu, 23 May 2013 13:17:18 GMT

Rsync has a pretty long history. If your bad experience was with a very old version of rsync, it's probably not relevant with modern versions.

Rsync is also very widely used for establishing and syncing mirror servers for Linux distributions and other free software - if it had a persistent file corruption issue, it would have been widely known by now. Without any more details, you are just spreading FUD (Fear, Uncertainty and Doubt).

Re: What are the prerequisites to make RSYNC work ?

coollllllllllll — Fri, 24 May 2013 05:02:06 GMT

Hi Matti ,

Well it was just one of those experiences that i had with rsync.

Maybe our application team wanted to put blame on us :-) .