package extlinux 3:4.05+dfsg-6+deb7u2ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Desmond Biggs]

All I did was try to install UNetbootin using Terminal on Lubuntu 13.04 and it said it crashed. I used the institution from the following website: http://askubuntu.com/questions/217981/how-to-install-and-run-unetbootin

ProblemType: Package
DistroRelease: Ubuntu 13.04
Package: extlinux 3:4.05+dfsg-6+deb7u2ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
Uname: Linux 3.8.0-23-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Fri May 31 11:26:18 2013
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2013-05-28 (3 days ago)
InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Release amd64 (20120423)
MarkForUpload: True
SourcePackage: syslinux
Title: package extlinux 3:4.05+dfsg-6+deb7u2ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to raring on 2013-05-28 (2 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Kurt (kurtbcox)]

Install fails when /boot is vfat partition.

# apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up extlinux (3:4.05+dfsg-6+deb7u2ubuntu1) ...
P: Checking for EXTLINUX directory... found.
P: Writing config for /boot/vmlinuz-3.8.0-27-generic...
P: Writing config for /boot/vmlinuz-3.8.0-26-generic...
P: Writing config for /boot/vmlinuz-3.8.0-19-generic...
File descriptor 3 (pipe:[29343]) leaked on lvs invocation. Parent PID 4839: /bin/sh
P: Writing config for Windows 7 (loader) on /dev/sda1...
P: Installing debian theme...ln: failed to create symbolic link ‘/boot/extlinux/themes/debian’: Operation not permitted
dpkg: error processing extlinux (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 extlinux
E: Sub-process /usr/bin/dpkg returned an error code (1)