fglrx-core (not installed): fglrx-core kernel module failed to build

[kendall green]

I tried to remove fglrx and rebuild xserver-xorg since fglrx results in boot loop with kernel 26 on 15.04. I got into root prompt on recovery mode and ran apt-get remove --purge fglxr* and xserver-xorg. I then ran apt-get install --reinstall xserver-xorg-core, libgl1-mesa-glx:i386 and :amd64, libgl1-mesa-dri:i386 and :amd64 and xserver-xorg. I then ran dpkg-reconfigure xserver-xorg and reboot

When 15.04 started up, I got this error message about fglrx-core not installed which I expected since I removed it, however the mesa graphics were not installed.

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: fglrx-core (not installed)
ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4
Uname: Linux 3.19.0-26-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.17.2-0ubuntu1.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
DKMSKernelVersion: 3.19.0-26-generic
Date: Tue Aug 18 10:26:53 2015
DistUpgraded: Fresh install
DistroCodename: vivid
DistroVariant: ubuntu
GraphicsCard:
 Subsystem: ASRock Incorporation Motherboard [1849:0162]
 Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] [1002:679a] (prog-if 00 [VGA controller])
   Subsystem: Hightech Information System Ltd. Device [1787:3000]
InstallationDate: Installed on 2015-07-11 (38 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
PackageVersion: (not installed)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-26-generic root=UUID=b760c8fc-6032-48a6-bf7f-7ecc298a01fb ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1
 apt 1.0.9.7ubuntu4.1
SourcePackage: fglrx-installer
Title: fglrx-core (not installed): fglrx-core kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/18/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.30
dmi.board.name: Z77 Extreme4
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.30:bd04/18/2012:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ77Extreme4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
xserver.bootTime: Tue Aug 18 14:13:54 2015
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.17.1-0ubuntu3
xserver.video_driver: radeon