On 07/17/2015 12:56 PM, Larry Linder wrote:
> 4.  We need a way to gracefully remove SL 7.1 if we can't then we will have to
> do a low level format on disk.
> One of the guys suggested that we take the disk out and put it on fence post
> in south forty and he would loan me his twelve Gage.  Just because a low
> level format takes so much time.

Low level formatting is a bit extreme.  If the install truly did do 
something to the disk, wiping out the first 512 bytes or so of the disk 
with 'dd' is usually adequate to recover.  This should wipe the MBR and 
partition table.

dd if=/dev/zero of=/dev/sda bs=512 count=1
(or whatever the raw disk node is)