I want to view a hard drive and see if it has all zeroes, how would I do this? I want to view a hard drive and see if it has all random data, or random data mixed with zeroes. How can I do this? I prefer to do all this in linux if possible without a gui...so looking for any cli tools to view with.
View 5 RepliesI was using dd if=/dev/zero of=/dev/user name/wipe.conf however i got a message that my hard drive is full.
lots of this is scary - dangerous. what is the best way to fill in random or zeros in deleted files without the hard drive filling up ?
I have a friend that has a computer running UBUNTU he has not used in a while and has forgotten the user name and password for it. Is there away to retrieve the data from this hard drive?
View 2 Replies View RelatedOnce random data is obtained by means other than a pseudo-random number generator, what software is available to measure the entropy or quality/randomness of the data?
View 3 Replies View RelatedI just discovered that my server is sending huge amount of data out at about 1Mbps. My immediate thought was the deluge bittorrent client, however it is supposedly not running (and a check confirmed its total active torrents was set to 0). I turned off the network and went in to Firestarter to set the outbound traffic to restrictive, turned on network again and no more data was sent. A look in Firestarter / Events showed a long list of random ports being used (see further down). How can I identify what program is sending all the data?
In Firestarter it doesn't really say much more than the port. Not sure if it is some misconfigured program or a malware/virus. I just got my ADSL connected a few days ago, and before that I used a mobile broadband (3G) as I just relocated. During the period I used the 3G the server might have been without firewall for a few days and it was also at this time I discovered an increase in network traffic (but I didn't really pay much attention at that time). I am running Fedora 10.
List of events from firestarter, my server is 192.168.1.100:
Time:Jun 1 16:48:12 Direction: Outbound In: Out:eth1 Port:39435 Source:192.168.1.100 Destination:58.208.xxx.56 Length:129 TOS:0x00 Protocol:UDP Service:Unknown
Time:Jun 1 16:48:12 Direction: Outbound In: Out:eth1 Port:6990 Source:192.168.1.100 Destination:112.94.xxx.212 Length:129 TOS:0x00 Protocol:UDP Service:Unknown
Time:Jun 1 16:48:12 Direction: Outbound In: Out:eth1 Port:2973 Source:192.168.1.100 Destination:118.93.42.xxx Length:129 TOS:0x00 Protocol:UDP Service:Svnetworks .....
So I built a new system few months to act as a development/"mess around with" server with an Asus Mobo and a Q6600 processor and 8 gigs of ram. Along with file, web and app hosting, I also do some virtualization on it... or atleast I had hoped to.
Ever since the first install, I've been randomly getting crashes and lockups. Sometimes it would just dump an error to the screen but stay alive, and sometimes it would dump an error and then lock up fully. The error mentions something about "kernel not tainted" etc. I will post the detailed error once it comes up again, as I have just formatted it again.
Other problems include downloaded files becoming corrupt. Files downloaded through any means (wget, torrents, ssh, ftp etc.) seem to randomly get corrupted (ie: the hashes are wrong).
I currently have one WD 150GB raptor as my primary OS partition, and 3 WD 1TB greens as my storage in an mdadm raid 5 array. At first, I had thought it was the raid array or it's drives causing issues. After painfully transfering the data off of it, I took the drives out and tried to run ubuntu with just the OS drive for a while. This still had the same issues. I then put in only one of the 1TB greens and had the same issue...
I downloaded WD's hardware diagnostic tool and ran full scans on all the drives. They all check out fine.
I left memtest running overnight and it had no errors either.
Most recently, ubuntu would not even install. It would get stuck at the stage of partitioning, and the keyboard lights would flash. After much googling, I tried popping in "noapic nolapic" to the end of the grub string, and it managed to install.
Now, I'm in a fresh system and just wgetted vmware server. However, it wont untar, I just realized the MD5 hash doesn't match!
So definately not the memory or the hds... I'm assuming it has to do with the APIC? From what I found on google, it seems as though this is only needed for the install.
Do I really need this to be on the boot string too? From what I understand, APIC allows processes to be divided out to the least loaded CPU. Having a quad core, I'd rather leave this on since it seems somewhat beneficial... I have yet to try putting this into the grub yet since I'm offsite and need
As a side note, this latest install is using just the WD Raptor as an OS drive.
And I'll post up the dumped errors if I get them again. There were none dumped out when the vmware download corrupted. The message format is very similar to the one here: [url
However, sometimes it mentions ext3 (or one of the other filesystem types I had tried with thinking it was a problem with ext3) Again, the error message is not the EXACT same, however the format is very similar...
I have an external 500GB USB drive that I want to sell. I've copied some stuff to it and practiced partitioning and formatting with it, but I want to use something to erase it completely. Is this possible if the USB is connected to a ThinkCentre 8187-EJU with an Ubuntu 10.04 OS? I've used Dban to erase regular hard disks but don't any software that could be installed on my computer that would erase a USB drive.
View 5 Replies View Relatedi already installed a netbook remix on my sony vaio 11.1 inch laptop i do not know anything about mountpiont thing i can not view my partitions
View 4 Replies View RelatedI'v been trying to install Ubuntu (and actually all other dists of linux (in hope of succes), but running ubuntu on my other machines and prefer it) on my old laptop. Laptop Acer Aspire 1312XC. Have just run a 24 hour RAM test it turned out ok. Have tried with other RAM blocks in aswell. The install freezes at random points in the installation. Mainly when trying to copy files to the hard drive. The only thing i've succeded in installing was Ubuntu server and windows XP. I have tried with ACPI off and all the other special atributes. No success so far.
View 8 Replies View Relatedi have just recently purchased a SeaGate 1TB External Hardrive. i have very sensitive information on this storage unit that i only want certain people to have access to. is there any way of password protecting the hardrive? preferably using linux or what are my options?
View 9 Replies View RelatedI have recently gotten hold of a device that helps me plug my old ATA/IDE hard drive to my computer and view my old files that I wish to recover. I am using Ubuntu and the harddrive that I wish to retrieve the data from also has an Ubuntu install on it. The files I wish to recover are old .doc files, which I want to keep to remember my old writings.
The problem I have encountered arises when I wish to open some of the files. The icon for some of the files, which happen to be my best writings, has an X on the top right, indicating that I cannot view the contents. When I click on the files, the following error message pops up: "Access to /media/c885571b-a6e5-4a2d-937a-78af7050910/george/Courses/hist388/Passion.doc was denied."
Now, I am guessing that I need to be able to log in as superuser or something to be able to access these files, so I logged in my terminal as super user by following the instructions outlined on this page: [url]
I still did not have the sufficient access required to be able to open the files that I would like to retrieve.
I have the strangest issue where my HDD reports full, but I can only account for about a tenth of the data.
Specs:
Ubuntu 10.4
laptop Toshiba Tecra A11
HDD 250GB
4Gb RAM
/home 20.3GB
/usr 2.4GB
/var 742MB
/lib 132.9MB
/opt 71.3 MB
/boot 15.4MB
/etc 14.2MB
sbin 7.4MB
bin 6.4MB
The rest are below a MB. This system is not a dual boot so 241Gb is ext4 and 8.9Gb is Extended and 8.9GB is Swap. This system has been loaded for about a month, when I initially loaded it there was 230GB free.
So, I recently acquired a second hard drive (1.5 TB) and I wish to partition Ubuntu 11.04 with Windows 7. I've set everything up properly and using the Disk Utility in my System Settings I've created a 1 TB partition which I want to use for Linux. I think it has the proper partition type but how do I exactly go about transferring all my files from the hard drive I'm using now to the partition I would like to have?
View 2 Replies View RelatedIm using rhl 5 on my new hard drive,i want to transfer data from my older hardrive (which has windows xp installed,one partition has fat32 and another has ntfs filesystem) to the new hardrive...
View 3 Replies View RelatedI have a Seagate 1TB external USB 2.0 hard disk which contains 740 GB of data. Everytime I connect, it shows the memory occupied and the remaining memory(190GB)..but when i try to access the folders inside they read empty... nothing is seen in the folders.. I am unable to read any data from it or write to it... Same is the case with Windows When I run self-test in Linux ubuntu I get
Reallocated sector count
threshold: 36
Normalized: 61
Worst: 61
value: 6488
Current pending sector count:
Normalized:1
threshold: 0
worst: 1
value:2036
My friend just got a gaming laptop that he won't let anyone else use (his last one got infected when his girlfriend surfed on it for just one hour -- he refuses to use antivirus since he claims he knows how to keep clean, but he doesn't trust others).
Because I used Linux a bit once, I said to him what if I could promise not to make any changes to your hard drive, and I told him that I was pretty sure I could boot to a live cd and then only write files to a usb key. He's actually willing to let me try (I showed him some linux sites I was looking at, and he believes me that we can do this).
1) Is there anything I either MUST do or else must NOT do to make sure I make no changes to his laptop's hard drive? And so that any changes are only going to go on the usb drive I hook up?
2) Since he's got an i7 processor, I assume I should get a version of ubuntu that supports 64 bits, right?
I've got an old EIDE hard drive that used to be used for a dual-boot WinXP and Linux (not sure what version - either RH9 or FC1), and I'd like to pull some data off it. That computer died, and I reformatted the Windows partition, but left the Linux portion alone. My current Linux (FC10 + XP) computer uses a SATA hard drive, and I'd like to get the data from the old drive to the new one. I've connected the hard drive normally, jumpered as a slave drive. Linux now boots normally, but I can't access the older hard drive. I tried the techniques in the following thread: [url] and commented there (with more info), but I thought I would be more likely to get a response by starting a new thread.
Here's a summary of what happened: ran "fdisk -l": the command saw both hard drives ran "tail -f /var/log/messages" and got the following: Jul 30 16:00:44 localhost kernel: EXT3 FS on sdb8, internal journal Jul 30 16:00:44 localhost kernel: EXT3-fs: mounted filesystem with ordered data mode. Jul 30 16:00:44 localhost hald: mounted /dev/sdb8 on behalf of uid 500 sdb8 was a FAT partition I had set up for moving files back and forth between XP and Linux (none of the other partitions were reported). ran "vgscan", which only returned one volume group When I ran FC10's Local Volume Management tool, it sees the hard drive and its partitions, but reports them as "Uninitialized Entities".
Using F12 with a LVM Volume, Single disk with OS on and boot partition. The OS HDD is getting i/o errors, but will still boot to the login screen. I've removed the HDD and connected it to a Fedora Live OS on my laptop, connected the HDD and it registers as :
[root@localhost]# fdisk -l /dev/sdd
Disk /dev/sdd: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000e0069
Device Boot Start End Blocks Id System
/dev/sdd1 * 1 26 204800 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sdd2 26 30401 243991201 8e Linux LVM
And it tried to mount /dev/sdd2 to view and see if I can recover some files.
[root@localhost]# mount /dev/sdd2 /mnt -t ext4[root@localhost james]# mount /dev/sdd2 /mnt -t ext4
mount: wrong fs type, bad option, bad superblock on /dev/sdd2,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
Any way to mount the partition to allow me to try and get some data back, or if trying to do a full backup of the drive you can get it to ignore i/o errors.
I am trying to transfer files from a SATA hard drive with Windows Vista (Home Premium) installed on it. Some files I can easily copy over, others just say Access Denied.
I'm sure permissions is part of the issue, unofrtunately Windows is unable to boot at all (surpise surprise) so I can't adjust anything from within in. I know with XP drives I can easily copy and paste onto my Ubuntu machine. I'm using a SATA to USB converter that let's me plug it in and my desktop reads it like an external hard drive.
I've gone into the properties and under permissions it shows my account as having access to Create and delete files under folder access amd "---" under File access. My group and others show None and --- for Folder and File access. I can post a link to a screenshot tomorrow. I've tried to also select Read and Write for File access but it goes back to the dashes before I can apply it.
I am running 64 bit Ubuntu 9.10 and do not have the sharing aspect installed. Any questions please feel free to ask me.
I'm running 10.04 LTS (64 bit) During a recent attempt at dual booting Windows 7, the Windows installer made a boot partition on the wrong drive, formatting the drive, and therefore destroying all my data.
The original partition was NTFS, and the new (unwanted partition) is NTFS.
Is there something in Linux I can do to recover the data that was there, or am I going to have to install Windows on yet another drive and use some Windows tools?
The data on this drive is extraordinarily important, containing ten years of digital photos, my source codes, and musical compositions (protools sessions etc).
Can not save data to external usb hard drive
formated and mounted on Ubuntu 9.10
visible on desktop /Dev/Sdb1
I should have seen this coming when I lost the ability to boot windows, or mount that drive from ubuntu. But now I think my hard drive has failed. Is there any way to retrieve the data from the hard drive, or my settings and the like for ubuntu? I'm at a loss for what to do as i'm booting from a CD right now =X.
View 4 Replies View RelatedI just want one last attempt at seeing if there's a solution. My Dell Studio 15 laptop HDD that runs Vista failed, I booted Ubuntu from a CD knowing that I should be able to recover my data.
However, Ubuntu can't find my HDD, it's not listed and "fdisk -l" doesn't result in anything. The BIOS seems to know that the HDD is there though.
i have a 200gb hard drive and im upgrading to a 1tb hard drive and i want all my stuff like settings and files on my new hard drive whats the best and easiest way to transfer all my stuff from the old hard drive to the new one
View 9 Replies View RelatedI'm trying to make a simple task as complicated as possible, so bear with me.
I'm going to force a friend onto Ubuntu soon, and the biggest requirement is photo management.
He wants his extensive photo library backed up, and backed up some more, and then when all feels safe, backed up even again.
Currently, all his photos reside on a 4 disk striped RAID array, based on his cousin's recommendation. The intent was a RAID 1+0, but they failed, and that needs to be fixed immediately.
So, instead of going with more mirrored hard drives in a RAID, which I know Ubuntu will do just fine, I'd like to simplify and just do manual backups of each hard drive.
So, I'm looking for a program that could possibly be set up to automatically back up a hard drive onto another hard drive on a weekly basis or something like that. Ultimately, doing a manual copy/paste of the data in the drive could work, but would be time consuming.
I'm scared of RAIDs lately because of a recent fiasco with a BIOSTAR motherboard and how it set the RAID mirror on a set of hard drives for a Windows load that rendered the harddrives basically useless for anything but a RAID mirror, with that motherboard and a Windows load, and I almost lost a lot of data because of it.
I'm also not sure how well Windows would recognize a RAID partition created in ext3, if he ever wanted to go back to Windows.
My servers (10.10) motherboard has failed so to access my data I've taken the hard drive out and tried to connect to it via my ubuntu desktop (10.10). I've tried it in a hard drive caddy and installed in my pc, but could only see a 255Mb Filesystem with a few folders and files on it. how to mount the portion of the disk that I can't see? Ie. the part with all of the data on it.
View 7 Replies View RelatedI'm looking for a way to quickly remove all data/partitions/boot records from my hard drives while running linux (distribution is irelevant). There are lots of ways to do this that I know of, but they all have some problems. Here's a list of what I've tried/thought of already. The most obvious is fdisk: Simply delete all the partitions. This usually works just fine and is very quick, but there are times it just doesn't....I'm realy not sure what gets left behind...I remove the MBR as well..but whatever it is, it's in the way. A couple other options are:
dd if=/dev/zero of=/dev/sdb bs=1M
shred -vfz -n 1 /dev/sdb
Both of these approaches are great if you're selling the components and want to make it very difficult for anyone to recover data. The draw-back is they take so very long to run. I've got four 1.5 TB drives that I've been writing zeros to for 2 days now. If you thought watching grass grow or paint drying was boring. A hundred years ago or so, when I was doing tech support for Windows 95 users we used this nifty dos-based debug script to wipe the hard drive. It was sort-of a last resort thing, but it worked beautifully, most of the time. If the customer had already formated, fdisked, fdisk /mbr, reinstalled Windows, but still couldn't get the thing to work, this would clean the drive so you could do a fresh install.
Just in case someone wants this, I'll post it. To use: first boot to some type of DOS environment in which you have the program "debug".
debug
-F 200 L1000 0
-A CS:100
xxxx:0100 MOV AX,301
xxxx:0103 MOV BX,200
xxxx:0106 MOV CX,1
xxxx:0109 MOV DX,80
NOTE: Type 80 for the primary hard drive - HD 0,
or type 81 for the secondary hard drive - HD 1.
In most cases, the primary hard drive is required 80.
xxxx:010C INT 13
xxxx:010E INT 20
xxxx:0110 (Leave this line blank. Press the <Enter> key to continue.)
-G
The message Program terminated normally appears. How to do something like that while running linux?
I have an hp laptop with 2 hdd slots, both are sata. it came with a 320gb hdd with vista ultimate 64. i added another 320gb hard drive to my laptop and installed kubuntu on the second hard drive. Since vista was my primary hard drive, parts of grub were installed on it i.e. stage 1.5. And the rest was installed on the kubuntu hard drive. Because of that neither os would boot independently of one another.
I eventually got tired of kubuntu and in wanted to uninstall it. I formatted that disk. Now vista gave me grub errors, like I knew it would.I was going to fix the vista boot sector and mbr by running bootrec.exe off of the vista disc. But since I have an hp laptop, hp doesnt provide a recovery disc with just vista, it is an install of the factory image of the os plus software and therefore doesnt have the utilities I need to fix my problem.I ended up navigating to some sort of command line in the windows recovery environment and tried running it there, but no luck.
I tried navigating in the hp recovery environment, and accidently had vista start to reinstall itself on the drive, and actually I did that 3-4 times, each of which I stopped the recovery early on, within 30 seconds, but it had managed to mess up my partition table. I was wondering if there is some utilities in linux/ windows that will help me restore the partitions back the way they should be? I have done a data recovery with get data back for ntfs, and was pretty successful getting some stuff back, figures since the mft was screwed up.
So first of all I want to make an exact clone of the hard drive. Something like dd but just make an image file for now. Since there are no partitions on the drive I dont think I can use partimage, or drive image xml and I wonder if clonezilla will work. And I dont know how to test it without have to reload the image and wiping the drive in the process. I have imaged the drive with get data back but it does me no good cause I cannot restore that image back to the drive, or at least dont think I can.
Second I would like to see if I can recover the partition table , or mft that was over written. Here is a list of programs I can use for imaging or recovering. [URL]Third, since I have 2 320gb hard drives, one that is corrupted, and one that I took kubuntu off of and loaded vista with the recovery disks. Can I take the mbr, and partition table, or boot sector off of the working vista and move it to the broken 320 and fix it that way?
[URL]
Does memtet86 write any data to the hard drive? or leave any data in memory once the test is complete. If so does turning of the machine or reboot clears the memory?
View 6 Replies View RelatedI have an external USB hard drive that I need to recover some data from, but I see from fdisk -l that the partition uses LVM:
Code:
[root@localhost ~]# fdisk -l /dev/sdd
Disk /dev/sdd: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[code]....
I've followed various lvm tutorials all of which describe setting up lvm from fresh on empty disks. Unfortunately non mention how to 'install' new a drive that was previously set up with lvm. I have had a go anyway and may have now lost my data. Here's what I've ended up with (the partition in question is sdd1):
Code:
[root@localhost ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sdd1
VG Name vg02
[code]....
I've tried mounting with other fstypes, but all give the same error.