QUOTA問題 - Linux

我輸入quotacheck -auvg
會出現
quotacheck: your kernel probably supports journaled quota but you are not
using it. consider switching to journaled quota to avoid
running quotacheck after an unclean shutdown.
quotacheck: Cannot remount filesystem mounted on / read-only so
counted values might not be right.
Please stop all programs writing to filesystem or use -m flag to force
checking.
quotacheck: Cannot remount filesystem mounted on /home read-only so
counted values might not be right.
Please stop all programs writing to filesystem or use -m flag to force
checking.

我的OS是fedora 11
/ 和/home的檔案系統都是ext4
我在/etc/fstab 裡面的defaults有加上,usrquota,grpquota
也有remount過
請問出現這些訊息是哪邊出錯了

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