Linux and windows 7 Installation together
For Ubuntu Linux requirement:
1 GHz x86 processor (Pentium 4 or better).
512 MiB of system memory (RAM).
5 GB of hard-drive space.
Graphics card and monitor capable of 800×600.
Either a CD/DVD drive or a USB port (or both).
If you want to run Windows 7 on your PC, here's what it takes:
1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor.
1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit).
16 GB available hard disk space (32-bit) or 20 GB (64-bit).
DirectX 9 graphics device with WDDM 1.0 or higher driver.
To back up in win 7:
Open Backup and Restore by clicking the Start button , clicking Control Panel, clicking System and Maintenance, and then clicking Backup and Restore.
If you've never used Windows Backup before, click Set up backup, and then follow the steps in the wizard. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
If you've created a backup before, you can wait for your regularly scheduled backup to occur, or you can manually create a new backup by clicking Back up now. If you're prompted for an administrator password or confirmation, type the password or provide confirmation again.
To back up in Ubuntu Linux:
To do this, become root with
Code:
sudo su
and go to the root of your file system (we use this in our example, but you can go anywhere you want your backup to end up, including remote or removable drives.)
Code:
cd /
Now, below is the full command I would use to make a backup of my system:
Code:
tar cvpzf backup.tgz –exclude=/proc –exclude=/lost+found –exclude=/backup.tgz –exclude=/mnt –exclude=/sys /
Now, lets explain this a little bit.
The 'tar' part is, obviously, the program we're going to use.
'cvpfz' are the options we give to tar, like 'create archive' (obviously),
'preserve permissions'(to keep the same permissions on everything the same), and 'gzip' to keep the size down.
Next, the name the archive is going to get. backup.tgz in our example.
Next comes the root of the directory we want to backup. Since we want to backup everything; /
Now come the directories we want to exclude. We don't want to backup everything since some dirs aren't very useful to include. Also make sure you don't include the file itself, or else you'll get weird results.
You might also not want to include the /mnt folder if you have other partitions mounted there or you'll end up backing those up too. Also make sure you don't have anything mounted in /media (i.e. don't have any cd's or removable media mounted). Either that or exclude /media.
EDIT : kvidell suggests below we also exclude the /dev directory. I have other evidence that says it is very unwise to do so though.
Well, if the command agrees with you, hit enter (or return, whatever) and sit back&relax. This might take a while.
Afterwards you'll have a file called backup.tgz in the root of your file system, which is probably pretty large. Now you can burn it to DVD or move it to another machine, whatever you like!
 Linux supports a few dozen USB devices at present, and work is underway to develop additional device drivers. There is a Web page devoted to the subject, at http://www.linux-usb.org. There is also LDP documentation, at: ("Where Is the Linux Stuff on the World Wide Web?")
If there any problem please post again about your problem.
