FreeBSD 7.2-RELEASE GEOM_LABEL?

7.1R-p5から、freebsd-updateでアップグレードして、unixbenchのスコアも上がってよしよしとか思っていたが、ケチがついていた。

こんなのが毎回起動時にでる(dmesg)

ad4: 476940MB  at ata2-master SATA300
GEOM_LABEL: Label for provider ad4s1a is ufsid/49745114427faf40.
GEOM_LABEL: Label for provider ad4s1d is ufsid/49745124d7980df0.
GEOM_LABEL: Label for provider ad4s1e is ufsid/49745114a865e9ea.
GEOM_LABEL: Label for provider ad4s1f is ufsid/4974511435bdb816.
Trying to mount root from ufs:/dev/ad4s1a
GEOM_LABEL: Label ufsid/49745114427faf40 removed.
GEOM_LABEL: Label for provider ad4s1a is ufsid/49745114427faf40.
GEOM_LABEL: Label ufsid/49745114a865e9ea removed.
GEOM_LABEL: Label for provider ad4s1e is ufsid/49745114a865e9ea.
GEOM_LABEL: Label ufsid/4974511435bdb816 removed.
GEOM_LABEL: Label for provider ad4s1f is ufsid/4974511435bdb816.
GEOM_LABEL: Label ufsid/49745124d7980df0 removed.
GEOM_LABEL: Label for provider ad4s1d is ufsid/49745124d7980df0.
GEOM_LABEL: Label ufsid/49745114427faf40 removed.
GEOM_LABEL: Label ufsid/49745114a865e9ea removed.
GEOM_LABEL: Label ufsid/4974511435bdb816 removed.
GEOM_LABEL: Label ufsid/49745124d7980df0 removed.

いったんGEOM LABELをつけた後に削除してるの？

google先生に聞くと
どうも「GEOM LABELを使って運用してね」とFreeBSDが言ってるみたいなんだけど

この3日、特に異常はないんだが

GEOM LABEL使いたくないんだけどどうしましょ。

追記：どうもこれで正常と思って差し支えないようなので放置