Hi, I am trying to get Amanda going on a RedHat ES 3 box, but I am
having this same issue addressed on a message board when trying to back
up a directory that is remote via NFS:
 
"...I was then able to do an amcheck, and it succeeded. Doing an amdump
still
fails however. Looking into the log file (sendsize.-----.debug) it
indicated that
amdump is not receiving the size information (presumably from sendsize
module)
that it needs to complete the tar...."
 

http://www.mail-archive.com/amanda-users AT amanda DOT org/msg23489.html
 
The responses say it's a problem with GNU tar 1.13, and to use 1.13-25,
however that is the version that the redhat box is running. What am I
missing?