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how to wipe an ext4 drive for good

post #1 of 15
Thread Starter 
how can I wipe an ext4 drive for good
like make it so I can't get any of the data back
OoGhiJ MIQtxxXA
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OoGhiJ MIQtxxXA
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post #2 of 15
Darik's Boot and Nuke.
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post #3 of 15
dd if=/dev/zero of=/dev/hda bs=16m

Replace hda with your disks id, e.g. sda, sdb, etc. dd is quite useful, google it. Careful:cheers:
stable again
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stable again
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post #4 of 15
Anything that writes zeros. Fill a disk with zeros and you're done. It's all gone.

I just use Active KillDisk free. It's a Windows-based program, so if it's not your primary drive, it would be easier to use that.
post #5 of 15
Thread Starter 
thaks
rep guys
OoGhiJ MIQtxxXA
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OoGhiJ MIQtxxXA
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post #6 of 15
Same as any other drive. If it is going to be resold or returned to the manufacturer I always make sure to use a DoD 5220.22-M wipe. If not I just hit it with a big hammer a couple of times. Active Killdisk is free and easy.
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post #7 of 15
Quote:
Originally Posted by thisischuck01;13065611 
Darik's Boot and Nuke.

Seconded. DBAN is a great wiping tool. You can 'autonuke' and I think it defaults to 3 passes, or it gives you the option to customize the wiping process. We use it at work to wipe all hard drives that are being scrapped/leaving the building.

~31337
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post #8 of 15
zero the drive out then 1 the drive out and back to zero (3 passes) if the drive is going to be reused that is, however a 9mm bullet is much faster, as is thermite or white phosphorous
The Nvidorator
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post #9 of 15
DBAN with a single pass, or if its an SSD use Secure ATA Erase.
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post #10 of 15
dd if=/dev/urandom of=/dev/your-disk

i would love to see anybody recover data from that after just one pass. a second pass is not necessary...
stable again
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stable again
(25 items)
 
  
CPUCPUMotherboardGraphics
E5-2687W E5-2687W ASUS Z9PED8-WS EVGA GTX 570 (Linux host) 
GraphicsRAMHard DriveHard Drive
EVGA GTX 970 FTW (win7 guest) 64GB G.SKILL 2133 2x Crucial M4 256GB raid1 4x 3TB raid 10 
CoolingCoolingCoolingCooling
2x Apogee HD  2x RX 480 2x MCP 655 RP-452x2 rev2 (new) 
CoolingCoolingOSOS
16x Cougar Turbine CFT12SB4 (new) EK FC 580 Gentoo (host) Gentoo (x23 guests) 
OSMonitorMonitorPower
windows 7 (guest w/ vfio-pci) Viewsonic 23" 1080P Viewsonic 19" Antec HCP Platinum 1000 (new) 
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Case Labs TH10 (still the best ever) 2x Lamptron FC-5 IOGEAR 2 way DVI KVM Switch 
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