can't install upgrade

[realityfails]

Binary package hint: linux-image

When I use the Ubuntu update manager and it gets to the linux-image-2.6.27-7-generic package, it brings up this error

E: /var/cache/apt/archives/linux-image-2.6.27-7-generic_2.6.27-7.16_i386.deb: unable to make backup link of `./boot/vmlinuz-2.6.27-7-generic' before installing new version

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 8.10
ErrorMessage: unable to make backup link of `./boot/vmlinuz-2.6.27-7-generic' before installing new version: Operation not permitted
Package: linux-image-2.6.27-7-generic 2.6.27-7.14
ProcCmdLine: User Name=UUID=1279-1279 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: unable to make backup link of `./boot/vmlinuz-2.6.27-7-generic' before installing new version: Operation not permitted

[Andy Whitcroft (apw)]

This is not a bug in the linux-meta package, moving to the linux package.

[Leann Ogasawara (leannogasawara)]

This looks to be a duplicate of bug 252900 so I am marking it as such for now. Please continue to track this issue at that report. Thanks.