linux package problem

[zark]

This package contains the Linux kernel image for version 2.6.27 on x86/x86_64.
Also includes the corresponding System.map file, the modules built by the packager, and scripts that try to ensure that the system is not left in an unbootable state after an update.
Supports Generic processors.
Geared toward desktop systems.
You likely do not want to install this package directly. Instead, install the linux-generic meta-package, which will ensure that upgrades work correctly, and that supporting packages are also installed.

error :
E: /var/cache/apt/archives/linux-image-2.6.27-7-generic_2.6.27-7.15_i386.deb: impossibile creare il link per la copia di sicurezza di `./boot/vmlinuz-2.6.27-7-generic' prima di installarne la nuova versione

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 8.10
ErrorMessage: impossibile creare il link per la copia di sicurezza di `./boot/vmlinuz-2.6.27-7-generic' prima di installarne la nuova versione: Funzione non permessa
Package: linux-image-2.6.27-7-generic 2.6.27-7.14
ProcCmdLine: User Name=UUID=2763-1F08 loop=/hostname/disks/home/username.disk ro ROOTFLAGS=sync quiet splash
ProcVersionSignature: Ubuntu 2.6.27-7.14-generic
SourcePackage: linux
Title: package linux-image-2.6.27-7-generic 2.6.27-7.14 failed to install/upgrade: impossibile creare il link per la copia di sicurezza di `./boot/vmlinuz-2.6.27-7-generic' prima di installarne la nuova versione: Funzione non permessa