package udev 167-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[reye]

Binary package hint: udev

running on live USB with casper-rw persistance set. ran apt-get update and apt-get upgrade. Had a couple other programs running while the upgrade was in process but I don't remember which ones at the time of the error.

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: udev 167-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
Architecture: i386
CustomUdevRuleFiles: 10-vboxdrv.rules
Date: Sat May 14 20:24:05 2011
Df:

ErrorMessage: subprocess installed post-installation script returned error exit status 1
MachineType: Hewlett-Packard HP EliteBook 8540p
PccardctlIdent:
 Socket 0:
   product info: "RICOH", "Bay8Controller", "", ""
   manfid: 0x0000, 0x0000
   function: 254 (unknown)
PccardctlStatus:
 Socket 0:
   3.3V 16-bit PC Card
   Subdevice 0 (function 0) bound to driver "pata_pcmcia"
ProcCmdLine: cdrom-detect/try-usb=true noprompt boot=casper floppy.allowed_drive_mask=0 ignore_uuid persistent live-media-path=/multiboot/hostname1010/casper/ initrd=/multiboot/hostname1010/casper/initrd.lz splash -- BOOT_IMAGE=/multiboot/hostname1010/casper/vmlinuz
SourcePackage: udev
Title: package udev 167-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
dmi.bios.date: 03/09/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68CVD Ver. F.0F
dmi.board.name: 1521
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 32.33
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68CVDVer.F.0F:bd03/09/2011:svnHewlett-Packard:pnHPEliteBook8540p:pvr:rvnHewlett-Packard:rn1521:rvrKBCVersion32.33:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 8540p
dmi.sys.vendor: Hewlett-Packard

[reye (rtestacct)]

I noticed the report stated:
DistroRelease: Ubuntu 11.04

I'm currently running 10.10 x86 but I do also have 11.04 x64 installed as an additional boot option on the USB drive. I was working with the 11.04 distro with the persistence option set then switched back to 10.10.
   uname -a
   Linux ubuntu 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19 20:34:50 UTC 2010 i686 i686 i386 GNU/Linux

Could this be contributing to the error? Is it possible to use the persistent option between two different Ubuntu distro on the same USB? If you need any further information please let me know.