[CentOS] What is writing to my filesystem

2009/4/10  <JCARRIZOSA at crutchfield.com>:
> I have a CentOS 5.2 box that every few months runs out of drivespace on
> its root filesystem. Last time I manually searched and deleted some big
> files, but don't remember what they were or what wrote to them. The
> applications I'm aware of on the box don't write to /.
>

I have a Centos 3 system, which has its /boot in the / filesystem, and
after several kernel upgrades it gets full, so I have to deinstall old
kernels.