Updated May 2019
Tested on FreeBSD 9.0 through FreeBSD 12.0, with Retrospect 7.7 through Retrospect 16.1.
New for 2019!
For FreeBSD 11.2+ and FreeBSD 12.0+, you will need to use a yet unreleased Retrospect Server (versions up to 184.108.40.206 do not work).
The kernel in these newer versions of FreeBSD passes a Linux ABI llistxattr response that earlier versions of the Retrospect Server cannot handle.
Using a version of Retrospect Server older than 220.127.116.111 on FreeBSD 11.2/12.0 will result in this error when it tries to back up files:
can't read, error -1114 (unexpected end of file)
Note: Retrospect cannot seem to create a password (stored in /var/log/retroclient.state) with the CentOS libraries on FreeBSD.
During initial installation or when attempting to set a password ("retroclient -setpass"), it would result in this being repeated over and over:
That password is invalid, password length must be at least 4 That password is invalid, password length must be at least 4 ...
Or you simply get this message when trying "setpass" and then nothing happens:
Overriding existing password.
This worked for us in the past with the 32-bit Fedora Linux libraries (no longer part of FreeBSD).
There is an easy work-arounds:
Just create a blank retroclient.state file ("touch /var/log/retroclient.state") and set the password on first connection with the Retrospect Server when adding the client.