I want to delete all data in the first (start) area of the Hard Disk may be fist 512 kb which the operating
keeps its booting information.In Red Hat 8 i choose option F5 (Linux rescue) & write at prompt the command

#sfdisk -l

Drive Boot Start End #Cyls #Blocks ID System

/dev/hda1 * 0+ 228 229- 461632+ 6 FAT16

/dev/hda2 0 - 0 0 0 0 Empty

/dev/hda3 0 - 0 0 0 0 Empty

/dev/hda4 0 - 0 0 0 0 Empty


when the computer boot after loading it stop i.e Kernel panic .

I want to delete the hda1 so that all variables should be delete which are booting the
system. Aslo guide me that what is ID which is showing 6 here.

Thanks

cfdisk from commandline should show you a list of drive locations and then you should be able to delete the partition hda1. Do this as root.