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So this is the error i'm getting

ubuntu@ip-my-ip:~/mt2$ unrar-free -x -p smon.rar

unrar 0.0.1  Copyright (C) 2004  Ben Asselstine, Jeroen Dekkers

Extracting from /home/ubuntu/mt2/smon.rar

Extracting  smon.vdi                                                  Failed   

I can unrar the file on windows,it works tested!

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up vote 3 down vote accepted

Why not use the non-free unrar package?

$ apt-cache show unrar
Package: unrar
Priority: optional
Section: multiverse/utils
Installed-Size: 244
Maintainer: Ubuntu MOTU Developers <>
Original-Maintainer: Martin Meredith <>
Architecture: amd64
Source: unrar-nonfree
Version: 1:3.9.3-1
Depends: libc6 (>= 2.7), libgcc1 (>= 1:4.1.1), libstdc++6 (>= 4.1.1)
Conflicts: rar (<= 2.60-1)
Filename: pool/multiverse/u/unrar-nonfree/unrar_3.9.3-1_amd64.deb
Size: 102356
MD5sum: 992124eae32ccaba5e91d95dac4d4fa0
SHA1: df0526a43f0adc6ab5ef7848112fcad39bce877e
SHA256: b929a9b81891d76a93de9c0a2298f87bcc932d3991cfa1b0498bafa34ff0afe9
Description: Unarchiver for .rar files (non-free version)
 Unrar can extract files from .rar archives. If you want to create .rar
 archives, install package rar.
Origin: Ubuntu

"nonfree" is related to the license. The non-free version is more recent than the unrar-free one.

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ubuntu@ip-dadada:~/mt2$ apt-cache show unrar N: Can't select versions from package 'unrar' as it is purely virtual N: No packages found – Uffo Apr 18 '12 at 2:11
It's in the "multiverse" repo. Edit /etc/apt/sources.list and uncomment the "multiverse" repo. – cjc Apr 18 '12 at 9:00
"nonfree" in this case refers to (among other problems) the fact that it costs money to use. You should read the license carefully before using this software – stew May 19 '12 at 3:29
why unrar-free doesn't work on most files like these? – Dec 25 '14 at 7:11

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