I'm using Acer notebook with windows7 and ubuntu 12.04 LTS Desktop installed in separate drive. I want to encrypt my ubuntu file system. I was trying with truecrypt. In windows 7 I'm not getting any drive where I installed ubuntu to encrypt using truecrypt. Also I'm using grub for OS selection. In ubuntu truecrypt is saying "TrueCrypt can encrypt system partitions only under Windows." I think truecrypt needs to format ubuntu drive that's why it is saying this. Is there any way to do encryption without erasing data? If it can't be done then what can I do for encryption of my ubuntu data. Encryption is mandatory for me. Please help me to get out of these problem as I'm trying for 3 day's and nothing comes fruitful. Thanks in advance.
The thing is, TrueCrypt currently supports the following operating systems:
But TrueCrypt can currently encrypt the following operating systems:
So it can read a volume that was encrypted under Windows in Linux, but it cannot encrypt a volume that has a Linux File System.
But beware, this will encrypt a single user; if you wish to encrypt several users, you need to repeat the how-to for each one. And follow carefully the instructions, or you will be unable to log in with encrypted folders if your wallpaper is in an encrypted area.