LinuxQuestions.org - /var out of room when installing new kernel image? Help?

Code:

:/# apt-get install linux-image-2.6.23-1-amd64

Reading package lists... Done

Building dependency tree      

Reading state information... Done

Suggested packages:

  linux-doc-2.6.23

The following NEW packages will be installed:

  linux-image-2.6.23-1-amd64

0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.

Need to get 18.7MB of archives.

After unpacking 74.7MB of additional disk space will be used.

Get:1 ftp://debian.uchicago.edu sid/main linux-image-2.6.23-1-amd64 2.6.23-1 [18.7MB]

Fetched 18.7MB in 1m56s (161kB/s)                                                                                          

Preconfiguring packages ...

(Reading database ... 113653 files and directories currently installed.)

Unpacking linux-image-2.6.23-1-amd64 (from .../linux-image-2.6.23-1-amd64_2.6.23-1_amd64.deb) ...

Done.

dpkg: error processing /var/cache/apt/archives/linux-image-2.6.23-1-amd64_2.6.23-1_amd64.deb (--unpack):

 failed in buffer_write(fd) (9, ret=-1): backend dpkg-deb during

`./lib/modules/2.6.23-1-amd64/kernel/drivers/char/synclink_gt.ko': No space left on device

dpkg-deb: subprocess paste killed by signal (Broken pipe)

Running postrm hook script /usr/sbin/update-grub.

Updating /boot/grub/grub.cfg ...

Found linux image: /boot/vmlinuz-2.6.18-5-amd64

Found initrd image: /boot/initrd.img-2.6.18-5-amd64

done

Errors were encountered while processing:

 /var/cache/apt/archives/linux-image-2.6.23-1-amd64_2.6.23-1_amd64.deb

E: Sub-process /usr/bin/dpkg returned an error code (1)

/#:

I am attempting to install the 2.6.23 kernel and the above is what happens when I type "apt-get install linux-image-2.6.23-1-amd64". I am currently using the 2.6.18-5-amd64 kernel.

When it says no space left on device, does that mean my /var partition is full? Because my /var partition is 2.8 GB and reads as 2.3 GB unused.

Could someone give me a clue as to what I might be doing wrong?