I install ubuntu 10 net book version on my Toshiba notebook.i had two partitions c: and D:.i install ubuntu on C: drive and give D: as a swap drive.i have following questions.

01. i had data on D: and will it destroyed?
02. If so how can i reverse or recovery it?

If you delete a partition (for example, to create a new partition) - yes, you've destroyed the data that was on the old partition.

If you format a filesystem - then yes, you've destroyed any data that might have been there before.

In general, you cannot reverse or recover any such changes once you've made them.

The best you can do in situations like this is:

1) pull the plug as soon as you realize you've made a mistake
2) boot an operating system (Linux is a good choice) from a USB stick or CD-ROM (anything that doesn't touch your hard drive)
3) Try to access the disk (read-only; possibly byte-wise) and see if anything is salvageable

Google for "hard disk recovery tools" - you'll find lots of hits.

I don't know if you'll find an acceptable solution.

You might also want to look here:
http://www.sysresccd.org/

Or here:
http://www.ibm.com/developerworks/li...y/l-knopx.html
http://www.knoppix.net/wiki/Rescue_FAQ

Welcome to LinuxQuestions.
I moved your posts to their own thread.

100% wrong.
Deleting a partition does not affect the data in any way.Wrong again.
The metadata for the filsystem will be (somewhat) overlaid, but data carving/forensic techniques can recover undamaged files. NTFS is more of a problem, but do-able.

If it is merely making a swap partition you are concerned about, it merely re-writes the first 10 (IIRC) sectors - have a look for NTFS recovery products - there are some freebies, or try photorec.

That's kind of like saying "If you fire a gun straight up into the air, then nobody on the ground will ever get hurt."

Bad advice

Yes, in general when you "delete a partition", you only delete an entry in the partition table (leaving the data untouched ... at least for the time being).

But you're still unable to access the data. And there's no guarantee that recreating the partition will necessarily restore access to the same data at the same place.

In general, one should NOT delete a partition, and one should NOT reformat a filesystem ... unless one is perfectly willing to kiss that data goodbye.

IMHO .. PSM

Thanks u all for ur responce.Thing is i didnt format,delete or even partition on my D: drive and also i have foremost-1.5.5.tar.So please let me know how to do that.sorry i'm really new for Linux.