Error updating BT5

Hello appreciated community :o

I got a problem when I proceed to update and upgrade BT5. I'm trying to get a better performance of BT5 but I got this:

Code:

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root@bt:~# apt-get upgrade
Reading package lists... Done
Building dependency tree     
Reading state information... Done
The following packages have been kept back:
  backtrack-utils framework3 linux-image linux-source set tcpreplay
The following packages will be upgraded:
  0trace aircrack-ng backtrack-gnome-essential backtrack-menu-icons beef-ng
  burpsuite complemento dnsenum dradis exploitdb fasttrack firefox fragrouter
  hexinject hydra ida-pro-free john kismet linux-firmware list-urls mantra
  metagoofil miredo ncrack nessus nmap oclhashcat+ proxytunnel scalpel
  skipfish sniffjoke spike sqlbrute sqlmap sqlninja sslsniff thc-ipv6
  theharvester w3af weevely wfuzz wireshark xplico xprobe2
44 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.
Need to get 0B/162MB of archives.
After this operation, 0B of additional disk space will be used.
Do you want to continue [Y/n]? y
E: Sub-process gzip returned an error code (1)
E: Prior errors apply to /var/cache/apt/archives/skipfish_2.00-bt0_i386.deb
debconf: apt-extracttemplates failed: Bad file descriptor
Extracting templates from packages: 100%
dpkg: failed in buffer_read(fd): copy info file `/var/lib/dpkg/available': Input/output error
E: Sub-process /usr/bin/dpkg returned an error code (2)

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So What can I do to resolve this issue?
Thanks in advance.

run @bt:~# apt-get update && apt-get dist-upgrade

instead. you should really spend some more time searching for easy answers to questions like this before creating a new thread. it has to be mentioned; it's probably why you haven't gotten any replies to something this easy. look up either sickness' bt5, or maxfx's bt5, updater python scripts on here for something way more elegant and comprehensive from either, than you will get from a simple update && dist-upgrade.

it's your first post and question on here... no harm, no foul. asking for spoonfed answers will only last so long. just a simple word of advice. do your own research first until you hit a *real* brick wall and have no choice other than to ask for help.

might actually learn something. :)