Comment 10 for bug 2027847

The purpose of the size check in u-r-u is to ensure that we don't fail mid-upgrade due to lack of disk space on /boot.

But AIUI that's not what happened here to the bug submitter; this is an upgrade within an Ubuntu series between individual kernel packages.

We should NOT have a check in u-r-u that refuses upgrades when /boot is less than the "ideal" size, only when we expect with a reasonable degree of confidence that /boot is too small to let the upgrade proceed.