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Old 08-08-2010, 10:27 PM   #1
ciao303
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GParted Question


Im trying to exterminate any and every softwares'existence and its trace of existence from my HDD

so I burnt the GParted gparted-live-0.6.1-5.iso into a DVD (sourced from softpedia)

the question is, whats next?
 
Old 08-08-2010, 10:42 PM   #2
AlucardZero
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boot from it?

Within GParted you can delete partitions, but I don't believe you can actually wipe (overwrite) data. For that, you need a DBAN CD, or any Linux live CD and the 'shred' or 'dd' command.
 
Old 08-09-2010, 01:32 AM   #3
linuxlover.chaitanya
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PartedMagick can be a better choice for that. It should wipe out data which should almost be irrecoverable for a normal user.

Last edited by linuxlover.chaitanya; 08-09-2010 at 01:32 AM. Reason: typo
 
Old 08-09-2010, 02:22 AM   #4
TheIndependentAquarius
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Quote:
Originally Posted by ciao303 View Post
the question is, whats next?
http://gparted.sourceforge.net/docs/...C/gparted.html
and
http://gparted.sourceforge.net/larry...es/gparted.htm
and
http://gparted.sourceforge.net/faq.php

Gparted and PartedMagic both *manage* harddisk partitions not any particular software, AFAIK.
 
Old 08-09-2010, 02:36 AM   #5
linuxlover.chaitanya
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PartedMagick is not a software but a compilation of different softwares for certain usages. PartedMagick in itself is not a software but a specialized operating system for disk management that can include disk partitioning, cloning, data backup, recovery and data shreding among others. It comes a live cd with small desktop environment.
 
Old 08-09-2010, 02:48 AM   #6
ciao303
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ok basically what I wanna do is forget all whats in the HDD, lay a mushroom cloud on that sucker and start anew....as if the HDD is brand spankin new...how do I do this?
 
Old 08-09-2010, 02:52 AM   #7
TheIndependentAquarius
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Quote:
Originally Posted by ciao303 View Post
ok basically what I wanna do is forget all whats in the HDD, lay a mushroom cloud on that sucker and start anew....as if the HDD is brand spankin new...how do I do this?
Read the links in Post number 4.
 
Old 08-09-2010, 03:04 AM   #8
linuxlover.chaitanya
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Quote:
Originally Posted by ciao303 View Post
ok basically what I wanna do is forget all whats in the HDD, lay a mushroom cloud on that sucker and start anew....as if the HDD is brand spankin new...how do I do this?
http://partedmagic.com/

Download the image. Burn to disk. Boot from disk. Erase your data. That is it. Your drive is all as new. Without any data and completely formatted.
PS: Shredding the data could make it irrecoverable. Make sure you know what data you are deleting or have a backup of it.
 
Old 08-09-2010, 04:15 AM   #9
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Quote:
Originally Posted by ciao303 View Post
ok basically what I wanna do is forget all whats in the HDD, lay a mushroom cloud on that sucker and start anew....as if the HDD is brand spankin new...how do I do this?
Hi,

ok here is how I "nuke" my disks. Suppose, the disk you want wiped is /dev/sdb. Boot from any liveCD and then just issue:
Code:
dd if=/dev/zero of=/dev/sdb bs=1M
dd if=/dev/urandom of=/dev/sdb bs=1M
#dd if=/dev/zero of=/dev/sdb bs=1M # This step is optional
Notice the third optional step. If you execute it or not depends on what you want to do further with that disk. If you want to encrypt it then do not perform it. Also make pay attention to the 'bs' option. If you choose the byte-size number too small the command will take longer to finish.
After the commands above have terminated you will have to recreate the disk label and partition table.

Be extremely careful with those commands. Make sure that there is no important data on the device. Better double or triple check that because after the commands finish no data will be recoverable.
 
Old 08-09-2010, 11:26 PM   #10
ciao303
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Quote:
Originally Posted by crts View Post
Hi,

ok here is how I "nuke" my disks. Suppose, the disk you want wiped is /dev/sdb. Boot from any liveCD and then just issue:
Code:
dd if=/dev/zero of=/dev/sdb bs=1M
dd if=/dev/urandom of=/dev/sdb bs=1M
#dd if=/dev/zero of=/dev/sdb bs=1M # This step is optional
Notice the third optional step. If you execute it or not depends on what you want to do further with that disk. If you want to encrypt it then do not perform it. Also make pay attention to the 'bs' option. If you choose the byte-size number too small the command will take longer to finish.
After the commands above have terminated you will have to recreate the disk label and partition table.

Be extremely careful with those commands. Make sure that there is no important data on the device. Better double or triple check that because after the commands finish no data will be recoverable.
at the 'bs' option how big is a number should be to consider it minimally tolerable?
 
Old 08-10-2010, 12:03 AM   #11
crts
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Quote:
Originally Posted by ciao303 View Post
at the 'bs' option how big is a number should be to consider it minimally tolerable?
Hi,

a while ago I have been experimenting with that number. From what I have observed, from 512 (Bytes) onwards there was no noticeable change in performance. But this might depend on the architecture. You can try to find that lower boundary for your system. 512 is a good starting point.
Some stats for my system:
Code:
copying from /dev/urandom:
bs     average speed
64     4.3 MB/s
128    4.9 MB/s
512    5.6 MB/s
4096   5.8 MB/s

copying from /dev/zero:
bs     average speed
64     29.1 MB/s
128    40.8 MB/s
512    37.0 MB/s
4096   37.4 MB/s
The commands ran for approx. 30 seconds. As a rule of thumb, you might want to choose a bigger number if you have more data to copy. E. g. abort the command with bs set to 128 after 2 seconds and you will get a speed somewhere near 60 MB/s. This drops drastically if you let the command run for a minute. Maybe you can post some of your stats when you run the command.
Hope this helps.

[EDIT]:
Since we are talking about erasing HDD of several GB I recommend using a value of at least 4096. I choose 1M to be on the safe side.

Last edited by crts; 08-10-2010 at 12:06 AM.
 
Old 08-10-2010, 01:49 AM   #12
linuxlover.chaitanya
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Quote:
Originally Posted by Sms2everyone View Post
Thanks to Everyone..
Nice useful Information,it really helped me a lot,
I request every member that..
Please keep updating this site with there knowledge as Now i am regular visitor of this site.
If you have nothing informational to share, will you please stop spamming the threads with this signature post of yours.
 
Old 08-10-2010, 01:53 AM   #13
EricTRA
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Quote:
Originally Posted by linuxlover.chaitanya View Post
If you have nothing informational to share, will you please stop spamming the threads with this signature post of yours.
Already reported him, awaiting actions from the mods to block this spammer.
 
Old 08-10-2010, 01:59 AM   #14
linuxlover.chaitanya
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Yup. Me too reported couple of his posts. There are bulk of those. Impossible to report all. Is there a way to directly contact a moderator to report such spam?
 
Old 08-10-2010, 02:04 AM   #15
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Quote:
Originally Posted by linuxlover.chaitanya View Post
Yup. Me too reported couple of his posts. There are bulk of those. Impossible to report all. Is there a way to directly contact a moderator to report such spam?
You can ask the moderator to look here http://www.linuxquestions.org/questi...eryone-536776/ in the statistics TAB and delete all his posts !!
 
  


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