[CentOS] Can't update kernel, says not enough space

Mon Aug 28 02:59:04 UTC 2006
techlist <techlist06 at msws.org>

I'm trying to update my server.  I have serveral packages to do, but I tried 
the kernel first:

Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package kernel.i686 0:2.6.9-42.0.2.EL set to be installed
--> Running transaction check

Dependencies Resolved

=============================================================================
 Package                 Arch       Version          Repository        Size
=============================================================================
Installing:
 kernel                  i686       2.6.9-42.0.2.EL  update             11 M

Transaction Summary
=============================================================================
Install      1 Package(s)
Update       0 Package(s)
Remove       0 Package(s)
Total download size: 11 M
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Test
Finished Transaction Test


Transaction Check Error:   installing package kernel-2.6.9-42.0.2.EL needs 
6MB on the / filesystem


But I have much more than 6M:

[root at mail /]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2             145M  116M   21M  85% /
/dev/sda1             168M  7.0M  152M   5% /boot
/dev/sda9             8.2G  3.9G  3.9G  50% /home
/dev/sda8             2.0G  341M  1.5G  19% /home/root
none                  506M     0  506M   0% /dev/shm
/dev/sda7              92M  4.1M   83M   5% /tmp
/dev/sda5             4.2G  1.5G  2.5G  37% /usr
/dev/sda3             981M  743M  189M  80% /var
/dev/shm               53M     0   53M   0% /var/amavis/tmp


What to do?

Thanks,
Scott