On Wed, 2006-08-09 at 14:17 +0300, Markku Kolkka wrote: > Irvine Short kirjoitti viestissään (lähetysaika keskiviikko, 9. > elokuuta 2006 11:18): > > On Wed, 2006-08-09 at 08:47 +0200, Przemyslaw Gawronski wrote: > > > Hi, how can I clean hdd's Master Boot Sector? For example > > > after I've put there GRUB. > > > > dd if=/dev/zero of=/dev/hda bs=1024 count=8192 > > > > Make sure you get the device right in the line above! Not sure > > if the count above is enough though. > > It's much too large if you only want to clear the MBR. Use bs=512 > and count=1 to leave the rest of the disk intact. MBR is just > the first 512-byte sector of the boot disk. > Actually the boot record is only the first 446 bytes of sector 0. The rest of the sector is the partition table. -- Aaron Konstam <akonstam@xxxxxxxxxxxxx>
