package linux-headers-2.6.38-11-generic 2.6.38-11.50 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[Alex Brown]

received this error running "sudo apt-get update && sudo apt-get dist-upgrade":
Setting up linux-image-2.6.38-11-generic (2.6.38-11.50) ...
Running depmod.
update-initramfs: Generating /boot/initrd.img-2.6.38-11-generic
Warning: No support for locale: en_US.utf8
Not updating initrd symbolic links since we are being updated/reinstalled
(2.6.38-11.48 was configured last, according to dpkg)
Not updating image symbolic links since we are being updated/reinstalled
(2.6.38-11.48 was configured last, according to dpkg)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/dkms 2.6.38-11-generic /boot/vmlinuz-2.6.38-11-generic
 * dkms: running auto installation service for kernel 2.6.38-11-generic
 * fglrx (8.840)... [ OK ]
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.38-11-generic /boot/vmlinuz-2.6.38-11-generic
run-parts: executing /etc/kernel/postinst.d/nvidia-common 2.6.38-11-generic /boot/vmlinuz-2.6.38-11-generic
Traceback (most recent call last):
  File "/usr/bin/nvidia-detector", line 8, in <module>
    a = NvidiaDetection(printonly=True, verbose=False)
  File "/usr/lib/python2.7/dist-packages/NvidiaDetector/nvidiadetector.py", line 68, in __init__
    self.getData()
  File "/usr/lib/python2.7/dist-packages/NvidiaDetector/nvidiadetector.py", line 148, in getData
    driver_version = self.__get_value_from_name(stripped_package_name)
  File "/usr/lib/python2.7/dist-packages/NvidiaDetector/nvidiadetector.py", line 87, in __get_value_from_name
    v = int(name)
ValueError: invalid literal for int() with base 10: '173-updates'
run-parts: /etc/kernel/postinst.d/nvidia-common exited with return code 1
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.38-11-generic.postinst line 1010.
dpkg: error processing linux-image-2.6.38-11-generic (--configure):
 subprocess installed post-installation script returned error exit status 2
Setting up linux-headers-2.6.38-11-generic (2.6.38-11.50) ...
Examining /etc/kernel/header_postinst.d.
run-parts: executing /etc/kernel/header_postinst.d/dkms 2.6.38-11-generic /boot/vmlinuz-2.6.38-11-generic
 * dkms: running auto installation service for kernel 2.6.38-11-generic
 * fglrx (8.840)... [ OK ]
run-parts: executing /etc/kernel/header_postinst.d/nvidia-common 2.6.38-11-generic /boot/vmlinuz-2.6.38-11-generic
Traceback (most recent call last):
  File "/usr/bin/nvidia-detector", line 8, in <module>
    a = NvidiaDetection(printonly=True, verbose=False)
  File "/usr/lib/python2.7/dist-packages/NvidiaDetector/nvidiadetector.py", line 68, in __init__
    self.getData()
  File "/usr/lib/python2.7/dist-packages/NvidiaDetector/nvidiadetector.py", line 148, in getData
    driver_version = self.__get_value_from_name(stripped_package_name)
  File "/usr/lib/python2.7/dist-packages/NvidiaDetector/nvidiadetector.py", line 87, in __get_value_from_name
    v = int(name)
ValueError: invalid literal for int() with base 10: '173-updates'
run-parts: /etc/kernel/header_postinst.d/nvidia-common exited with return code 1
Failed to process /etc/kernel/header_postinst.d at /var/lib/dpkg/info/linux-headers-2.6.38-11-generic.postinst line 110.
dpkg: error processing linux-headers-2.6.38-11-generic (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 linux-image-2.6.38-11-generic
 linux-headers-2.6.38-11-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)
-------------------------------------------------------------------------------------------------------------------------
ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: linux-headers-2.6.38-11-generic 2.6.38-11.50
ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AptOrdering:
 linux-image-2.6.38-11-generic: Configure
 linux-headers-2.6.38-11-generic: Configure
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 1: SB [HDA ATI SB], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: alex 1669 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Generic'/'HD-Audio Generic at 0xe0244000 irq 43'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100200'
   Controls : 4
   Simple ctrls : 1
Card0.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Card1.Amixer.info:
 Card hw:1 'SB'/'HDA ATI SB at 0xe0240000 irq 16'
   Mixer name : 'Conexant CX20590'
   Components : 'HDA:14f1506e,17aa6011,00100000'
   Controls : 8
   Simple ctrls : 5
Date: Wed Sep 21 12:45:41 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: LENOVO 1450A5U
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=122CD2FE2CD2DC33 loop=/ubuntu/disks/root.disk ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-11-generic N/A
 linux-backports-modules-2.6.38-11-generic N/A
 linux-firmware 1.52
SourcePackage: linux
Title: package linux-headers-2.6.38-11-generic 2.6.38-11.50 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:

dmi.bios.date: 04/18/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 52CN09WW
dmi.board.asset.tag: Base Board Asset Tag Unknown
dmi.board.name: Inagua
dmi.board.vendor: LENOVO
dmi.board.version: 109-B78210-00A
dmi.chassis.asset.tag: Chassis Asset Tag Unknown
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Chassis Version Unknown
dmi.modalias: dmi:bvnLENOVO:bvr52CN09WW:bd04/18/2011:svnLENOVO:pn1450A5U:pvrLenovoB575:rvnLENOVO:rnInagua:rvr109-B78210-00A:cvnLENOVO:ct10:cvrChassisVersionUnknown:
dmi.product.name: 1450A5U
dmi.product.version: Lenovo B575
dmi.sys.vendor: LENOVO