package fglrx 2:8.780-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[C. Reis]

Automatically generated bug report. Natty Alpha Live USB Session, started with jockey showing me proprietary drivers are available for my system (as expected). After loading driver packages, installation fails.
Hope this helps!
Cheers,
Clemens

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: fglrx 2:8.780-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
Uname: Linux 2.6.37-7-generic x86_64
AptOrdering:
 initramfs-tools: Configure
 fglrx: Configure
 fglrx-amdcccle: Configure
Architecture: amd64
DRM.card0.DisplayPort.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
DRM.card0.HDMI_Type_A.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
Date: Fri Dec 3 19:09:31 2010
DkmsStatus:

ErrorMessage: subprocess installed post-installation script returned error exit status 1
GdmLog1: Error: command ['cat', '/var/log/gdm/:0.log.1'] failed with exit code 1: cat: /var/log/gdm/:0.log.1: No such file or directory
GdmLog2: Error: command ['cat', '/var/log/gdm/:0.log.2'] failed with exit code 1: cat: /var/log/gdm/:0.log.2: No such file or directory
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20101203)
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
SourcePackage: fglrx-installer
Title: package fglrx 2:8.780-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
dmi.bios.date: 05/04/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1456
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A89GTD-PRO/USB3
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1456:bd05/04/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A89GTD-PRO/USB3:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: natty
 architecture: x86_64
 kernel: 2.6.37-7-generic