ltsp-client-builder misses space in interface list

[Kris Lowet]

I wanted to install a LTSP-server with the alternate CD of Ubuntu 9.04 64-bit.
The installer fails with a red screen "failed to build ltsp-chroot".

When I look into to the error via the command line, I get this:

------------------------------------------------------------------------------------------------------

May 15 13:04:27 in-target: Setting up linux-firmware (1.11) ...
May 15 13:04:27 in-target: Setting up linux-image-generic (2.6.28.11.15) ...
May 15 15:04:27 ltsp: # Creating dsa-hostkey for server
May 15 15:04:27 ltsp: # Creating rsa-hostkey for server
May 15 15:04:27 ltsp: # Creating dsa-hostkey for 192.168.1.7
May 15 15:04:27 ltsp: # Creating rsa-hostkey for 192.168.1.7
May 15 13:04:27 in-target: Updating /var/lib/tftpboot directories for chroot: /opt/ltsp/amd64
May 15 15:04:27 ltsp: # Creating dsa-hostkey for server
May 15 15:04:27 ltsp: # Creating rsa-hostkey for server
May 15 15:04:27 ltsp: # Creating dsa-hostkey for 192.168.1.7
May 15 15:04:27 ltsp: # Creating rsa-hostkey for 192.168.1.7
May 15 13:04:27 in-target: Warning: --skipimage set, not building squashfs image, run ltsp-update-image later
May 15 13:04:27 in-target: info: LTSP client installation completed successfully
May 15 13:04:27 kernel: [ 1046.846741] NET: Registered protocol family 5
May 15 13:04:27 main-menu[804]: (process:11843): /var/lib/dpkg/info/ltsp-client-builder.postinst:
May 15 13:04:27 main-menu[804]: (process:11843): line 78:
May 15 13:04:27 main-menu[804]: (process:11843): ifconfig: not found
May 15 13:04:27 main-menu[804]: (process:11843):
May 15 13:04:27 main-menu[804]: (process:11843): SIOCSIFADDR: No such device
May 15 13:04:27 main-menu[804]: (process:11843): eth1eth2: ERROR while getting interface flags: No such device
May 15 13:04:27 main-menu[804]: WARNING **: Configuring 'ltsp-client-builder' failed with error code 255
May 15 13:04:27 main-menu[804]: WARNING **: Menu item 'ltsp-client-builder' failed.

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At the third last line, you can see "eth1eth2". It seems he takes two network interfaces together.
In this server, I have 3 nic's. In the first steps from the installer, I set eth0 as the default one and he gets a IP from the DHCP server afterwards.

Seems there is a problem with the interface detection?

[Oliver Grawert (ogra)]

From ltsp-client-builder:

# exclude the interface with the default route, we only want unconfigured ones
IFACE_TMP=""
for iface in $IFACE_LIST;do
        if [ $iface != $DEFAULTROUTE_IFACE ]; then
                IFACE_TMP="${IFACE_TMP:+$IFACE_TMP}$iface"
        fi
done
IFACE_LIST=$IFACE_TMP

the line:
IFACE_TMP="${IFACE_TMP:+$IFACE_TMP}$iface"
needs to have a space before $iface...

[Oliver Grawert (ogra)]

accordingly the
elif [ -z "$IFACE_LIST" ];then

a few lines below needs to be fixed to not match on whitespace

[Alkis Georgopoulos (alkisg)]

Only one line needs to be changed:
IFACE_TMP="${IFACE_TMP:+$IFACE_TMP }$iface"

Notice the space before }
That ensures that if IFACE_LIST is empty, IFACE_TMP will be null, not space.

[Launchpad Janitor (janitor)]

This bug was fixed in the package ltsp - 5.2.1-0ubuntu7

---------------
ltsp (5.2.1-0ubuntu7) lucid; urgency=low

  * Fix multi-NIC support in d-i plugin. (LP: #376933)
  * Fix wrong arch on non-i386 in dhcpd.conf (LP: #203954)
  * Add dependency on a plymouth theme so we have a splash.
 -- Stephane Graber <email address hidden> Sat, 10 Apr 2010 20:15:10 -0400