Filesystem full......

[Leslie Jensen]

During "make installkernel KERNCONF=GENERIC" I get

/: write failed, filesystem is full
install: /boot/kernel/wlan_tkip.ko.symbols: No space left on device
*** Error code 71

output of df -H gives

Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/ad0s1a    260M    259M    -20M   108%    /
devfs          1.0k    1.0k      0B   100%    /dev
/dev/ad0s1g    127G     30G     87G    25%    /home
/dev/ad0s1e    260M     26M    213M    11%    /tmp
/dev/ad0s1f     26G    6.0G     18G    25%    /usr
/dev/ad0s1d    260M    209M     30M    87%    /var
/dev/ad4s1d    387G    119G    237G    33%    /backup
linprocfs      4.1k    4.1k      0B   100%    /usr/compat/linux/proc

It's a system I've had for a few years, and it has been upgreded a few 
times before.

My question is can I get around this or have I made my / slice to small?

Thanks

/Leslie