[SFS] how to erase the crap out of (off from?) an old RAID/LVM/whatever disk

[David L. Willson]

This was hard enough to find that I want to stick in my journal. Hello, journal. 

``` 
# wait for /dev/sdc to become available 
while ! blockdev --getsz /dev/sdc; do sleep 5; done 
# erase the tail - gets the RAID config 
dd bs=512 if=/dev/zero of=/dev/sdc count=2048 seek=$(( $( blockdev --getsz /dev/sdc ) - 2048)) 
# erase the head - gets the partition table 
dd bs=512 if=/dev/zero of=/dev/sdc count=1024 
# cleanly disconnects 
eject /dev/sdc 
``` 


-- 
David L. Willson 
Teacher, Engineer, Evangelist 
COA LFCS CCAH RHCE CLP 
Mobile 720-333-LANS(5267) 
http://sofree.us 

This is a good time for a r3VOLution. 

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