[syslinux] how to remove extlinux?

[H. Peter Anvin]

Paolo Casaschi wrote:
> hello,
> 
> quick question about extlinux: I accidentally installed extlinux on
> the wrong partition (I run extlinux -i somewhere beofre mounting my
> usb key to somewhere). Now extlinux seems to be stuck in my main hd
> partition... how do I remove extlinux from the hard drive?
> I mean both the extlinux.sys file and the bits in the partition
> table... Could not find any info how to doit.
> 

chattr -i extlinux.sys
rm -f extlinux.sys

There isn't a huge point to removing the boot sector, but it can be done
with:

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

... where /dev/sdXX is the right partition.  CAREFUL!  This command can
destroy non-ext2/3/4 filesystems.

	-hpa