ltsp-build-client ends abnormally

Binary package hint: ltsp-server

Running ltsp-build-client produces an error, seen below the system info.
-------------------------------

$ uname -a ; cat /etc/lsb-release
Linux host 2.6.17-10-powerpc #2 Tue Dec 5 22:00:09 UTC 2006 ppc GNU/Linux
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=6.10
DISTRIB_CODENAME=edgy
DISTRIB_DESCRIPTION="Ubuntu 6.10"

-------------------------------
...
I: Configuring console-tools...
I: Configuring ubuntu-minimal...
I: Base system installed successfully.
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "en_US:en",
        LC_ALL = (unset),
        LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
Leaving `diversion of /sbin/start-stop-daemon to /sbin/start-stop-daemon.real by ltsp-client'
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "en_US:en",
        LC_ALL = (unset),
        LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "en_US:en",
        LC_ALL = (unset),
        LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
Leaving `diversion of /etc/mtab to /etc/mtab.real by ltsp-client'
`/opt/ltsp/powerpc/etc/apt/sources.list' -> `/opt/ltsp/powerpc/etc/apt/sources.list.old'
ln: creating symbolic link `/dev/fd' to `/proc/self/fd': File exists
error: LTSP client installation ended abnormally