how to remove linux partitions

[madhuc]

hello everyone
I had installed linux on one of my hard disk with the usual /(root) /boot and partition .Now I want to remove it and make it dual boot with windows and linux .but the problem is I am not able to remove the linux partitions .I attached it to another xp machine and tried to delete partition but they cannot be removed please help

[devils casper]

Boot up from any LiveCD ( Or boot up in Recovery Mode using Linux Installation CD/DVD ). Open Terminal and execute this

dd if=/dev/zero of=/dev/sda bs=521 count=1

It will remove all partitions and wipe out your Harddisk.

[oz]

dd if=/dev/zero of=/dev/sda bs=521 count=1

Hi, Casper

Shouldn't that command be with a 512 rather than 521?

dd if=/dev/zero of=/dev/sda bs=512 count=1

I do think it will still work as you have it written, though.

[devils casper]

Hi oz !

Good catch ! You are right.
It should be 512 only. First 512bytes contain MBR and overwriting it with zeros is enough. 521 wont do any harm but again, 512 is enough.