package extlinux 2:4.05+dfsg-6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

Tried to install extlinux as UNetbootin needs but failed.

ProblemType: Package
DistroRelease: Ubuntu 12.10
Package: extlinux 2:4.05+dfsg-6
ProcVersionSignature: Ubuntu 3.5.0-25.39-generic 3.5.7.4
Uname: Linux 3.5.0-25-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu10
AptOrdering:
 extlinux: Install
 extlinux: Configure
Architecture: i386
Date: Tue Mar 19 01:18:26 2013
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2012-03-29 (354 days ago)
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
MarkForUpload: True
SourcePackage: syslinux
Title: package extlinux 2:4.05+dfsg-6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to quantal on 2012-10-23 (146 days ago)