Download back tarack 5. ~ Jawad Hacker

Download it from HERE.

Verifying the Download in Linux

Once you have downloaded BackTrack5 R2, you should check the validity of the downloaded file using md5sum. This will allow you to eliminate the most common problem encountered by BackTrack users - badly downloaded (corrupt) ISO files. To check the MD5 sum of your downloaded ISO, use the md5sum command:

root@bt:~# md5sum BT5R2-KDE-32.iso 
38ff62f14cecce5c842df60cbadbdb22  BT5R2-KDE-32.iso
root@bt:~#

BackTrack 5 R2 ISO md5sums are summarized here for your convenience.

BT5r2-KDE-64 KDE 64bit md5sum: 6d5996df868dfe9c31aad234187ad7d0
BT5r2-KDE-32 KDE 32bit md5sum: adb7eece8964aab083294f06aa44b625
BT5r2-GNOME-64 GNOME 64bit md5sum: 4864e7cacdc35a886ef8264eb346f414
BT5r2-GNOME-32 GNOME 32bit md5sum: 4ad5f359bad43bb934d59fcf6632ae1b
BT5R2-GNOME-VM-32 GNOME 32bit md5sum: 9a8ec2fb4bbf4a5e626cfeb8970609fd
BT5R2-GNOME-VM-64 GNOME 64bit md5sum: dad2f4bf1045c56c0104218fa5d68aff
BT5r3-KDE-64 KDE 64bit md5sum: 981b897b7fdf34fb1431ba84fe93249f
BT5r3-KDE-32 KDE 32bit md5sum: d324687fb891e695089745d461268576
BT5r3-GNOME-64 GNOME 64bit md5sum: 8cd98b693ce542b671edecaed48ab06d
BT5r3-GNOME-32 GNOME 32bit md5sum: aafff8ff5b71fdb6fccdded49a6541a0

Verifying the Download in Windows

To check the md5sum of your BackTrack ISO in Windows, you can use the free "hashcalc" tool from SlavaSoft HashCalc - Hash, CRC, and HMAC Calculator
Once downloaded, open hashcalc, uncheck all the checkboxes except md5 and change data format to "file".
In the data box on the right hand side is a button with 3 dots, click it and navigate to where you downloaded your .iso or .bz2 and select it, click open and then "calculate" .After a few seconds (or more depending on your computer speed) there will be a 32 bit string next to the word md5, this is the md5 of your file.

Compare your md5 to the md5 hash on the download page. If they are the same then your iso or bz2 is good, if not your file is corrupt and you need to download it again.

Verifying the Download in OSX

Open up the console and use the md5 command to calculate your BackTrack ISO md5:

revolution:~ muts$ md5 BT5R2-GNOME-32.iso 
MD5 (BT5R1-GNOME-32.iso) = 49f3dda1e617cb6f4045735766839690
revolution:~ muts$

Important Notes

The most common problems encountered with BackTrack by newcomers are:

ISO md5sum mismatches, which result in random issues in BackTrack.
Low media quality (in case of DVDS), or burning the ISO file at speeds which are too high.
Burning BackTrack to a DVD as a file instead of a disc image.

Please make sure to check everything that was previous mentioned before starting a thread on the Forum.

What next?

The BackTrack 5 ISO image is bootable, meaning that you will need to either burn the ISO to a DVD or transfer it to a USB stick. Once you have done this, you will then be able to boot your computer into the BackTrack Live environment. From this Live environment you can continue to use BackTrack or install it to your HDD using one of the installation guides

Installing to USB with UNetbootin

Easy USB (Live or with Persistence) Install using the UNetbootin USB Installer.

Installing to USB with persistent changes

Backtrack Persistent USB Installation

Installing to USB with Linux Live USB Creator

Alternative install method for windows users
Installing BackTrack to disk
- How to Install BackTrack to Disk
Dual Booting BackTrack with Windows 7
- How to Dual Boot BackTrack And Windows7
- Please like and comment if you like it.

Jawad Hacker