Hardware :: Lowlevel Tool To Erase Data From Harddisks Completely?
Mar 9, 2011
For several days I have tried to create a new raid5 array, after accidently blowing up the old one.But it seems that the raid data was burned into the harddisks ineradicably. I keep seeing the raid data that was used for the old array. I have tried everything to remove the old data, even installed a new distro but still I see the old data.My last hope is to erase the disks with a lowlevel tool to make a clean start.
What will be an easy and reliable way to completely erase a hard drive excluding with a hammer.I have several 40G IDE Hard drives, running Linux or Windows, for disposal. A friend of mine needs them. I want completely erase all data before delivering them to him. Googling "How to completely erase a hard drive" brought me many suggestion.
I had a laptop with a partition for windows and linux, but I decided to thorw away the partition for windows and add it to the linux partition. So i read this was possible with gparted, burned a cd, deleted the windows partition and resized the linux partition to the full space.
GParted did it work, but when it was nearly finished it said it failed. When I rebooted the laptop, it gave me hard disk errors of the type: DRDY ERR UNC. I couldn't solve the problem, so I wanted to clear the whole disk. I have been trying to accomplish this with the Debian boot CD, but it says it can't do that anymore. How to completely erase my hard disk?
I would like to completely erase my hard drive and install Ubuntu 10.04 on again fresh. I think some files have become corrupted from a power cut that I had last night whilst the laptop was plugged in (and turned on).
I'm not bothered about completely wiping the hard drive since there are no important files on it (at most there are just a lot of packages I downloaded from the repro...) I don't have any Windows installations either - it's just a simple; wipe the hard drive and reinstall all over again case
I accidentally ran mkfs.ext3 /dev/sdb on the wrong drive.It used to be 2 NTFS partitions with lots of data. is there any hope I can only change the file system to ntfs back and revert what I did?not sure if mkfs erase the data or just rewrite some partition table.
A friend accidentally did mkfs.vfat on my 1Tb ext. hard drive..It's now showing as 400 GB free where it was 10 GB previously and the remaining data is being shown as weird symbols and empty folders and yet it occupies more than 500GB..Any way to recover the data completely?
I'm trying to learn how to use foremost, a data recovery tool. I thought a nice place to start would be by attempting to recover a file from a test image. The foremost website links to this site which has a FAT Undelete Test #1 challenge. The challenge is to recover files from a 6 MB FAT disk image. I tried running this command. foremost -t all -i /home/<user>/Desktop/6mb.img -o /home/<user>/Desktop/output but all I got was a folder with an audit.txt file in it.
I dont want to wipe the whole drive, and i don't want to delete only particular files. I want to completely destroy all data in free space.I've found some articles about secure-delete package for linux that would allow erasing freespace with the command 'sfill,' but I can't find it in the repositories nor through google. This would be ideal but it seems maybe it's debian only.
I'm looking for a tool similar to synctoy in linux. For those who dont know what synctoy does is... its a simple syncing application that allows you to copy your data between multiple hard drives and keeps all copies in sync with the latest data. I'm specifically looking for KDE based tool if KDE based is not available then my second preference will be for gtk based app.
I tried to recover deleted data using testdisk tool and now my partition table have some errors. Even though i have 3 partitions and 1 unallocated disk fdisk -l shows only 1 partition
Code: vishnu@vishnu-laptop:~$ sudo fdisk -l [sudo] password for vishnu:
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
I've been looking for a good data integrity test tool for linux, but I'm having trouble finding one. Basically I'm looking for an application that will generate a heavy I/O load to a raw device and then perform some kind of data verification on the device. I my case the raw device will be md raid5 array.
I have a home-fileserver with 6 desktop harddisks in a md-raid.
The server isn't accessed a lot, so I think it would be good for the harddrives to go in standby-mode after some idle time (e.g. with the hdparm -S or hd-idle command).
Is this safe when using mdadm or could this cause errors/degraded harddisks?
I have a WAN network that i need to do some analysis on, for the traffic flows. I did lots of googling to figure out what useful tool to collect the packet informations.I found this site [URL]..witch i made great use of to recognize the tcpdum tool. I also have a network simulator on windows platform wich is Opnet Guru, (by the way.. is there a linux version for this simulator?).
MY QUESTION IS: How can i feed the Opnet Guru with the flows data collected with the
Code: tcpdump with its different options?
NOTE: in the Opnet Guru invironment there is an object called the profile that is beeing used to customize and genarate data flows with the desired characteristics to simulate the real flows. So i need to feed the Opnet with the fresh data collected with the tcpdump tool (command) instead of using the built-in profile.. i hope i was clear enough..
Visibly the conventional Cdrom of Debian Testing Install cannot recognize 2 terabytes harddisks. Well this is surprising since it is quite common nowadays to use 2TB
I have a WAN network that i need to do some analysis on, for the traffic flows. I did lots of googling to figure out what useful tool to collect the packet informations.I found this site http://scrutin.wordpress.com/2007/04...-tcpdump/witch i made great use of to recognize the tcpdum tool. I also have a network simulator on windows platform wich is Opnet Guru, (by the way.. is there a linux version for this simulator?). MY QUESTION IS:: How can i feed the Opnet Guru with the flows data collected with the Code: tcpdumpwith its different options? NOTE: in the Opnet Guru invironment there is an object called the profile that is being used to customize and genarate data flows with the desired characteristics to simulate the real flows. So i need to feed the Opnet with the fresh data collected with the tcpdump tool (command) instead of using the built-in profile.
I have a Debian Squeeze installed on my old iBook G4 mid 2005. The computer has been giving me hard time and I want to sell it for parts. Before that however I'd like to erase the hard drive securely. Is there a software that this forum recommends for erasing hard drives completely and securely? Is there Linux equivalent for something like DBAN which can be installed on a CD and then boot the computer from it?
i want to remove some of my app such as dragon, juk all of them are installed on my computer at installation of fedora ,now i want to erase them how i can do it?i tempted to remove them by this commands: yum erase juk yum remove juk rpm -e juk but none of them works and messages cannot find juk or dragon.
I have recently installed ubuntu on a previously vista operated laptop, now i need to eradicate all of vista i care not for it at all, I've read some of the threads here and saw someone say something about ubuntu overwriting everything on my hard drive including vista, is that dangerous, easy, and the most efficient way of doing this. i also tried removing the partition of vista by following a response to a thread, using gparted but now im stuck and i failed horribly (very limited computer knowledge).
I have a CF card I'd like to erase. My CF card reader is connected to my Linux machine via USB. How do I do a secure erase (i.e., the ATA Secure Erase functionality) of the CF card?
I have tried hdparm --security-erase NULL /dev/sdc, but I get an error: ERASE_PREPARE: Invalid exchange. In fact, any hdparm command gives me the same error:
I read somewhere that hdparm can't do an ATA Secure Erase of a drive that is connected over USB. Is this true? I tried using sdparm, but sdparm doesn't seem to have the capability to send the ATA Secure Erase command to the CF card. So, what is the proper way to do this?
I work for a public school and we are implementing a number of Ubuntu NBR 9.1 netbooks. I wanted to use Likewise Active Directory for authentication, but have problems with the software so now I'm onto another solution for our problem. We are going to have one login for all users (Students, is the name). The problem with this is that Website passwords can inadvertantly be stored, potentially compromising users personal data. Additionally, I don't want to have any files left in the Students profile in case people accidentally save personal information in their files.I'm thinking there are potentially two solutions:
1. The Students profile is deleted when the user logs off. This will erase web history and files
2. The Students account is always logged in with a temporary profile (or no profile, if that is possible) that deletes itself at logoff because it is temporary.
I'm having a hard time coming up with search terms for a solution like this, so I thought I would put the question to the experts.
Several moths ago I installed Ubuntu 10.10 Maverick Meerkat alfa3 in a newly created partition while I was using Ubuntu 10.04 Lucid Lynx. After I installed the 10.10 alfa3, I realized that it also installed its grub. Moreover that grub could not detect the kernel updates of 10.04. Thus, I recovered the grub of 10.04 via live CD. Interestingly after I returned the grub of 10.04 the boot time of 10.04 has considerably increased.
For example, the Ubuntu splash screen appears 20 seconds after selecting Ubuntu in Grub menu. I thought that a fresh installation for 10.10 final release would solve the problem but it seems that I'm still getting the same boot time until the splash screen is the same. It seems that I need a fresh installation of Grub. The methods that are introduced following url are just recovers Grub. I need to erase and reinstall the Grub. [URL]
that's my problem, can't find a way to erase 2 files that apparently don't want to move to the rubish bin. it says: can't move the file to trash, wan't to erase it permanently? I click on erase and the thing still there! could you please get me some commands? and by the way, how do I find how to use the command line so I don't bother you all the time? would it take me a hole engineering carrer or something? any 'document' recommended?
