can't install a downloaded file

Asked by Joachim Kuntz on 2010-11-18

Hi everybody,

I have just downloaded an antivirus software, but the system refuses to execute the installation, prompting the following message:

 End-of-central-directory signature not found. Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive. In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.

Anyone could help me out?

Question information

English Edit question
Ubuntu clamav Edit question
No assignee Edit question
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marcus aurelius (adbiz) said : #1

which antivirus software did you download?
i suspect it's something for windoze. you won't be able to install any windoze antivirus software on ubuntu.
you can get clamav from the synaptic package manager.

mycae (mycae) said : #2

Two problems:

1) Although possible, you usually do not download software from the internet and install it in ubuntu. You use the "software centre" which contains thousands of applications which can be installed. These applications are checked to ensure that they contain no malicious code, and are installed using a cryptographically secure mechanism (digital signatures) to ensure that the software you ask for is the software you get.

2) Ubuntu does not need an antivirus software program -- this is pretty much only required under operating systems that do not have proper permission systems. Your phone, router, TV, car, etc do not have antivirus software, and get along just fine.

You may wish to read more, for example here:

If your comptuer is misbehaving in some way, it is probably a configuration issue -- feel free to post a new question if you need.

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