I saw this problem on the list several times; there are many posts about 
this since 2004, with no clear answer.

I can't backup some hosts; shortly after I start the backup, I keep 
getting "Can't open /backuppc-data/pc/comp1/new//f%2f/ for empty output".

I have plenty of inodes and space left. Using only rsync command 
transfers the files just fine.
BackupPC is 3.0.0beta1, and RsyncP module to 0.64.
Remote hosts are using rsync 2.6.8.

The error message looks like this:

full backup started for directory /
started full dump, share=/
Running: /usr/bin/ssh -q -x -l backupuser imap1 /usr/bin/rsync --server 
--sender --verbose --numeric-ids --perms --owner --group --devices 
--links --times --block-size=2048 --recursive --ignore-times . /
Xfer PIDs are now 1820
xferPids 1820
Got remote protocol 29
Negotiated protocol version 28
Sent exclude: /proc/*
Sent exclude: /mnt/*
Sent exclude: /tmp/*
Sent exclude: /media/*
Sent exclude: /sys/*
Xfer PIDs are now 1820,1821
xferPids 1820,1821
   create d 755       0/0        4096 .
   create d 755       0/0        4096 bin
   pool   l 777       0/0          11 bin/ash -> ../sbin/bsh
   pool   l 777       0/0           4 bin/awk -> gawk
   pool   l 777       0/0           4 bin/bash3 -> bash
   pool   l 777       0/0          11 bin/bsh -> ../sbin/bsh
   pool   l 777       0/0           4 bin/csh -> tcsh
   pool   l 777       0/0           8 bin/dnsdomainname -> hostname
   pool   l 777       0/0           8 bin/domainname -> hostname
   pool   l 777       0/0          20 bin/ex -> /etc/alternatives/ex
   pool   l 777       0/0           3 bin/gtar -> tar
   pool   l 777       0/0           8 bin/nisdomainname -> hostname
   pool   l 777       0/0          16 bin/pidof -> ../sbin/killall5
   pool   l 777       0/0           4 bin/rbash -> bash
   pool   l 777       0/0          21 bin/rvi -> /etc/alternatives/rvi
   pool   l 777       0/0          23 bin/rview -> /etc/alternatives/rview
   pool   l 777       0/0          22 bin/rvim -> /etc/alternatives/rvim
   pool   l 777       0/0           4 bin/sh -> bash
   pool   l 777       0/0          20 bin/vi -> /etc/alternatives/vi
   pool   l 777       0/0          22 bin/view -> /etc/alternatives/view
   pool   l 777       0/0          21 bin/vim -> /etc/alternatives/vim
   pool   l 777       0/0           8 bin/ypdomainname -> hostname
   create d 755       0/0        4096 boot
   pool   l 777       0/0          23 boot/System.map -> 
System.map-2.6.12-12mdk
   pool   l 777       0/0          19 boot/config -> config-2.6.12-12mdk
   create d 755       0/0        4096 boot/grub
   pool   l 777       0/0          22 boot/grub/splash.xpm.gz -> 
mdv-grub_splash.xpm.gz
   pool   l 777       0/0          23 boot/initrd.img -> 
initrd-2.6.12-12mdk.img
   pool   l 777       0/0          27 boot/kernel.h -> 
/boot/kernel.h-2.6.12-12mdk
   pool   l 777       0/0          15 boot/message -> message-graphic
   pool   l 777       0/0          20 boot/vmlinuz -> vmlinuz-2.6.12-12mdk
   create d 755       0/0       11980 dev
   create s 666       0/0           0 dev/log
   create d 755       0/0        4096 etc
   create d 755       0/0        4096 home
   create d 755       0/0        4096 initrd
   create d 755       0/0        4096 lib
   create d 700       0/0       16384 lost+found
   create d 755       0/0        4096 mnt
   create d 755       0/0        4096 opt
   create d 555       0/0           0 proc
   create d 750       0/0        4096 root
   create d 755       0/0        4096 sbin
   create d 755       0/0           0 sys
   create d1777       0/0          60 tmp
   create d 755       0/0        4096 usr
   create d 755       0/0        4096 var
Can't open /srv/backuppc-data/pc/imap1/new//f%2f/ for empty output\n
   create     0         /           0
Can't open /srv/backuppc-data/pc/imap1/new//f%2f/ for empty output\n
   create     0         /           0
Can't open /srv/backuppc-data/pc/imap1/new//f%2f/ for empty output\n
   create     0         /           0
Can't open /srv/backuppc-data/pc/imap1/new//f%2f/ for empty output\n
   create     0         /           0
Can't open /srv/backuppc-data/pc/imap1/new//f%2f/ for empty output\n
   create     0         /           0
Can't open /srv/backuppc-data/pc/imap1/new//f%2f/ for empty output\n
   create     0         /           0
Can't open /srv/backuppc-data/pc/imap1/new//f%2f/ for empty output\n
   create     0         /           0


And it loops like that all the time.

Is there a remedy for that?


-- 
Tomasz Chmielewski
http://wpkg.org

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