how to unmount / , /usr partition

[creeds]

Hello evrybody!!!,
iam in need to unmonut /usr and also / partition so that i can make the image of that partition with partiamge, but when i try that it says the device is busy .....
so how to proceed also can it be possible with booting with single user mode or any other way....
any help will be highly appreciable,,,
thanks in advance,
Creeds

[ashitpro]

Hello evrybody!!!,
iam in need to unmonut /usr and also / partition so that i can make the image of that partition with partiamge, but when i try that it says the device is busy .....
so how to proceed also can it be possible with booting with single user mode or any other way....
any help will be highly appreciable,,,
thanks in advance,
Creeds

You just cant, as long as you are booting from same os.
You need to put your hard drive on other linux machine and take the backup or whatever you want.
Or you should go for any live CD like knopix. Boot from that CD and do your work.