GNU/Linux and other unix operating systems are a very hostile environments for viruses, but they are still in the front of other malware / exploits. The most dangerous malware under GNU/Linux are the rootkits.

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Yes, is possible and is very easy. Ext2 differ from Ext3 only on few things: Journalling is one of them and can be added very easy to an Ext2 system. First, just look to the features of a Ext2 filesystem:

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1. Getting the sources
You have 2 possibilities:
1. Download from sourceforge (Download version 1.3.3)
2. Download from source server with git. The git server is git+ssh://mob@repo.or.cz/srv/git/siplcs.git

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Ubuntu is one of a few distribution what came with root root account disable. What they are doing that? Because they are sustain a good security policy and anyway you will don’t need the root password to do administrative tasks on your desktop. You can use sudo to do that and for sudo (if is configured right) you will need just your account password. I also encourage all people to work with sudo and don’t use directly the root password.

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I just found a simple utility what can recover files (known file types) very well: Foremost. This is not an filesystem utility what can recover every files from your system, is just an utility what can recover files with an known structure. This utility just demonstrate than simple solutions sometimes are more efficient than complicated ones.

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