BIOS update fails due to missing python import

# update_firmware --yes

Running system inventory...

Searching storage directory for available BIOS updates...
Checking System BIOS for OptiPlex 320 - 1.1.7
        Available: system_bios(ven_0x1028_dev_0x01e5) - 1.1.11
        Found Update: system_bios(ven_0x1028_dev_0x01e5) - 1.1.11

Found firmware which needs to be updated.

Running updates...
| Installing system_bios(ven_0x1028_dev_0x01e5) - 1.1.11Installation failed for package: system_bios(ven_0x10
28_dev_0x01e5) - 1.1.11
aborting update...

The error message from the low-level command was:

Could not update the system BIOS.

Many times, this is due to memory constraints. The BIOS update can require from
1 to 4 megabytes of physically contiguous free RAM in order to do the update.
Because memory can become fragmented, this is not always available. To correct
this, try rebooting and running the update immediately after reboot.

The output from the low-level bios update command was:

Performing BIOS update...
Traceback (most recent call last):
  File "/usr/sbin/dellBiosUpdate", line 185, in <module>
    sys.exit( main() )
  File "/usr/sbin/dellBiosUpdate", line 153, in main
    exit_code = updateBios(HdrFile(options.hdr), options)
  File "<peak.util.decorators.rewrap wrapping libsmbios_c.rbu_update.updateBios at 0x08CEFA3C>", line 3, in updateBios
  File "/usr/lib/python2.6/dist-packages/libsmbios_c/trace_decorator.py", line 98, in trace
    result = func(*args, **kw)
  File "/usr/lib/python2.6/dist-packages/libsmbios_c/rbu_update.py", line 95, in updateBios
    if compareBiosVersions(ver, hdrfile.biosVersion()) >= 0:
  File "<peak.util.decorators.rewrap wrapping libsmbios_c.rbu_hdr.biosVersion at 0x08CEFED4>", line 3, in biosVersion
  File "/usr/lib/python2.6/dist-packages/libsmbios_c/trace_decorator.py", line 98, in trace
    result = func(*args, **kw)
  File "/usr/lib/python2.6/dist-packages/libsmbios_c/rbu_hdr.py", line 86, in biosVersion
    ver = "%d.%d.%d" % struct.unpack("BBB", self.hdr.biosVersion)
NameError: global name 'struct' is not defined

The problem is that "struct" isn't imported. This can be fixed by using a new upstream version (which is in progress for Maverick in bug #591017) or applying the attached patch (which we should SRU)

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: python-libsmbios 2.2.13-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
Architecture: i386
Date: Sat Jul 10 17:58:47 2010
Dependencies:

InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
PackageArchitecture: all
ProcEnviron:
 LANG=en_ZA.UTF-8
 SHELL=/bin/bash
SourcePackage: libsmbios