No upgrade for me? 8.04.1

[awacs]

I have several Ubuntu servers running 8.04.1.

Some will present an upgrade to 8.10 by apt-get install update-manager-core and do-release-upgrade.

Some report, 'no new release found.' all have internet connectivity.

Any idea why?

[awacs]

i got it. some machines have prompt=normal, some have prompt=lts in /etc/update-manager/release-upgrades.