[CentOS] wiping out data on a disk (no physical acess to the machine)
yinyang at eburg.com
Sun Jan 13 01:42:45 UTC 2013
On 01/12/2013 04:35 PM, Reindl Harald wrote:
> Usually if no service is running "dd if=/dev/zero of=/dev/your-sysdisk"
> does crash more or less very late and if you destory the datadisks before
> there is nearly zero chance to recover any data
If I care enough to wipe the disks in a server, "usually" and "late" is
not going to cut it. Any attempt by the kernel to read any filesystem
is likely to cause a panic before wiping is complete. If you want to
completely wipe a disk, you need the root filesystem to be somewhere else.
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