dd is a common Unix program whose primary purpose is the low-level copying and conversion of raw data.

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File Permissions from .dd image

I am trying to access files from a .dd image made of my MacBook Pro. Not the complete disk with the recovery partition and everything, just the partition where my files are. I can mount it in Ubuntu ...
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SD card Mounting Copying and file recovery

My micro sd card stopped being recognized by my win2008 computer after a copy paste failure (maybe the card was full? or the antivirus stalled it and now the MBR is corrupted?). Now I want to see if ...
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Why won't my system boot off of a partition that I just transferred the Ubuntu install image to using the dd command?

I have a drive that I would like to install Linux onto, for eventual use on another machine. I want to bring the Ubuntu installer image onto a 20GB partition, and then boot into that. When I boot ...
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When installing Ubuntu, can I use the dd command to copy the image to my 1TB hard drive for subsequent insertion into another machine?

Typically people are installing Ubuntu using a USB drive or burned DVD, but I don't have these. I would rather just go with installing to the destination hard drive itself, make it bootable, and ...
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dd image size - does it equal the size of the partition?

I am using dd to create an image of my boot partition on Ubuntu 14.04. This is my first time doing this. In checking the usage on my disk, I used df -h. You will see that my /dev/sda1 partition is ...
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46 views

Trouble with simple script :(

Could someone please tell me why this script doesn't run correctly. Seems to be a problem with the if statement as i keep getting the error: /home/sinttx/Development/backup/ddbackup.sh: line 18: ...
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1answer
19 views

How to create backup image of clean Windows partition without using dd?

I would like to create image of my fresh Windows 7 partition (with drivers and updates only). It occupies 'only' about 35GB of my 250GB partition, so I'm searching for alternatives to dd because I ...
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62 views

After rescue with `dd` - what to do?

I have an external that very suddenly conked out on me. It might not be in horrible shape, although I can't be sure. I just tried to recover it by using ddrescue, straight to a big partition. sudo ...
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How would I speed up a full disk dd?

I am doing a dd on two identical drives with this command: dd if=/dev/sda of=/dev/sdb bs=4096 Both hard drives are the exact same model number, and both have 1TB of storage space. /dev/sda uses a ...
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2answers
40 views

Using dd and an sdcard

I had Ubuntu 14.04 running sweetly however when installing an IMG to an SD card for a raspberry pi like so: dd bs=4M if=2014-06-20-wheezy-raspbian.img of=/dev/mmcblk0 My beloved Ubuntu now boots ...
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2answers
116 views

Can I cancel dd command and rebuild partition table?

I am attempting to fix the partition table on a 1 TB hard drive. GParted on my live disk sees the drive as being "2 TiB"... It is clearly labelled as 1 TB on the outside. I started a low level ...
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boot issue after cy with dd command (error : file '/boot/grub/i386-pc/normal.mod' not found)

I'm running Ubuntu through a 16GB USB having one partition for the OS and one dedicated for swap and all is working well. I wanted to make a copy of this usb key to a 32Gb key to increase the ...
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2answers
125 views

Issue creating bootable USB using dd command

It's a while that I'm trying to create a bootable USB drive with a Windows on it. I first tried with Unebootin unsuccessfully, I reckon the reason is the fact that the last version doesn't support any ...
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2answers
61 views

Creating a large size file in less time

I want to create a large file ~10G filled with zeros and random values. I have tried using: dd if=/dev/urandom of=10Gfile bs=5G count=10 It creates a file of about 2Gb and exits with a exit status ...
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77 views

Backing up a HDD using dd

I'm trying to install Linux Mint alongside Windows 8 on my laptop, but the install disc did not recognize Windows, so I'll have to do a custom install, which is something I've never done, and I want ...
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29 views

flash disk not mounted in ubuntu 14.04

I am new to Linux and I have installed recently ubuntu 14.04. I have an .img file of 2GB and I want to make my flash disk bootable with this image. I used the command: dd if=xxx.img of=/dev/sdb1 ...
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256 views

dd command not working properly in ubuntu 14.04

I have been using dd command to write an image file to my USB drive. After installing Ubuntu 14.04, the image is not getting written properly. The same image, which was written using another machine ...
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16 views

How do I 'dd' Backup my Surface?

I like using dd imaging for all my new devices. How do I dd backup my Surface? On my laptops all I did was: F12 > Ubuntu Live on a Usb Memstick > sudo -i ; sudo dd=if=/dev/sda bs=9999k ...
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132 views

Trusty - whole disc copy using sudo dd .. of=/dev/disk/by-id/xx does not write

I want to move failing hdd into spare using dd. All goes well usind if=/dev/sdc of=/dev/sdi for example, but I tried to use serial number of hdd to avoid messing the things (well the mistake would be ...
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1answer
624 views

steps to create DD image file from usb and restore image to a DIFFERENT usb

I have successfully (file created, ubuntu does NOT issue any error messages) created an image from an entire persistent ubuntu live usb.(sdc1) - the file ubuntu1.img is 4.3gb so it is reasonable to ...
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24 views

Use dd from VirtualBox to external HD?

I want to clone my VM Oracle to a another/external HD in my computer. My VM is a Ubuntu 14.04, and I want to use dd command in a external HD. Is possible? When o use # fdisk -l appear just the ...
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1answer
373 views

No such file or directory error on DD commands

I'm trying to run DD commands to fix a cell phone issue in Ubuntu 14.04. I'm running Ubuntu from a DVD side-by-side with Windows 8 on a 64 bit machine and have automount disabled. For example when ...
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25 views

What is the proper way to move from a SCSI drive based install to a virtual machine (mulitple partitions & software raid)?

I realize that many of the individual things that I am asking have been covered to varying degrees, but I am the unfortunate inheritor of this very goofy system that is on it's last legs. It consists ...
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61 views

I executed 'dd' on my /dev/sda and now I get “unknown filesystem” error

Yes, I know this error has been answered and solved many times; but I think I know the reason why this is happening (my bad), I just don't know how to solve it. I was formatting and flashing some USB ...
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Syncing dm-crypted drives?

I have 2 usb sticks, 8GB each: usb1 = /dev/sdb usb2 = /dev/sdc usb1 is a full dm-crypted drive and I am currently using usb2 as a backup, just incase usb1 fails. I am cloning usb1 to usb2 using ...
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53 views

Cloning a USB stick

make a dd backup of the dm-crypt usb and rest the test the backup I know I can make a copy of a usb stick using the following sudo dd if=/dev/sdb of=~/USB_image and then restore it using ...
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508 views

using the dd command to copy the content of a folder

I'm trying to use the dd command to copy the content of the folder boot0 to the my disks intial bytes. This is the command : sudo dd if=boot0/ of=/dev/sdb ibs=440 obs=440 count=1 But I get this ...
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65 views

Raid10: how to tell which disks are in mirror?

When I do "cat /proc/mdstat", there seems no such information as to tell which disks are in mirror. % cat /proc/mdstat md126 : active raid10 sda1[0] sdd1[3] sdc1[2] sdb1[1] ... near-copies Thanks ...
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1answer
43 views

How to restruct RAID 10?

We would like to alter the partition without losing data. Here is the sketch of the plan. I am wondering if it is doable using mdadm; and if so, please kindly point some reference on how to carry out ...
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26 views

Some info about SD card patitions after the use of the dd statment and some oiters doubts?

I am not very experienced using Linux and I have the following situation that cause me some doubts. I have wrote RaspBian (the RaspBerry linux distribution) on an SD card using Ubuntu dd statment: ...
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How to open a dd image and sniff G725 files from it

I have extracted some data from a magnetic tape using the dd command. Now I want to sniff from this image to check whether it has G726/G729 audio encoded files. Do you know a tool that does this? ...
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76 views

Kernel panic error while installing Minimal CD

I recently created a bootable USB of Ubuntu 14.04 Minimal CD using the disk destroyer. When I boot, I have the options - Install, Advanced Install, Command Line Install & Help. Clicking on any of ...
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218 views

Cloning with DD command

How can I back-up a partition (not the whole disk) to another partition on an external hard-disk using DD? I achived this with the following command: sudo dd if=/dev/sda6 of=/dev/sdb3 bs=1M ...
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I want to backup my entire Ubuntu system

The following table illustrate my partition Device Boot Start End Blocks Id System /dev/sda1 * 63 83891429 41945683+ 7 HPFS/NTFS/exFAT /dev/sda2 ...
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Why is dd creating an enormous file when I try to create a backup disk image?

I've been trying to get CUDA to work on my system and in the process of messing with nvidia drivers I have broken ubuntu badly enough that I've had to reformat my drive partition multiple times. I've ...
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It possible to restore the system, after dd if=/dev/zero of=/dev/sdb? [duplicate]

As a result of the following command dd if=/dev/zero of=/dev/sdb (I wanted reset /dev/sdd), I accidentally deleted my system directories. After removal of my ubuntu continued to work as nothing was. ...
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Mount sd-card image (created using dd)

I have created an image of my Raspberry Pi SD-card using dd: sudo dd if=/dev/sdf of=/home/myusername/raspberry-backup-2014-04-10.img The SD-card includes two partitions (one vfat, one ext4) which ...
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35 views

disk image creation outputs zero sized cylinders

I use the following command to create a disk image dd if=/dev/zero of=/tmp/image.ext2 bs=1k count=100000 This is the odd observation, the output of fdisk -l image.ext2 this instruction on my ...
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72 views

Lost disk space after DD

I've made a typo while doing: $ sudo dd if=/dev/zero bs=1MiB of=/host/ubuntu/disks/root.disk conv=notrunc oflag=append count=2048 $ sudo losetup -c /dev/loop0/ $ sudo resize2fs /dev/loop0 In first ...
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91 views

Will dd if=/image.iso of=/dev/sdb copy the image onto pendrive or burn it?

Or maybe I should just use unetbootin instead (crying)
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46 views

Can I dd a larger drive to a smaller one?

I have resized the partition of the larger drive with GParted. Can I do sudo dd if=/dev/LargerDrive of=/dev/SmallDrive ?
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110 views

What is the best value for the bs option of dd command?

I am using the dd command for the first time, so I am wary, I've reading articles in wikipedia but have some unclear part, so I am asking here, is bs option matter? If I set the wrong number, would ...
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1answer
105 views

How to make a pendrive snapshot

I am building a NAS server with Ubuntu Server 12.04 on an old laptop and am very happy with it. The OS is installed on a 8Gb pendrive (the swap partition and grub are also installed on it). I did a ...
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Used dd to backup a disk, now want to look at the filesystem

I dd copied /dev/sdd sudo dd if=/dev/sdd of=backup.img sudo fdisk backup.img Command (m for help): p Disk backup.img: 143.3 GB, 143274860544 bytes 61 heads, 35 sectors/track, 131069 cylinders, ...
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1answer
40 views

faster (and less precise) alternarives to dd

I love dd with all my electronic heart, but sometimes it takes to long and i dont actually need byte by byte exact hdd replicas I was thinking of resizing the partition in question to minimum free ...
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1answer
105 views

Can't install/try Ubuntu after dd sda hard drive

I mistakenly ran dd on sda which is the current hard-drive Ubuntu installed on. I aborted dd (using ctrl-x) and when rebooted the machine it no longer boots with Ubuntu :( I have nothing important on ...
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397 views

Backup SSD as image

I want to backup an existing SSD on a new notebook with a pre-installed Windows, Recovery Partition, ... before I wipe it and install Ubuntu on it. (It is too small for a dual-boot) Until now I have ...
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3answers
220 views

System backup with dd to external hdd

I want to backup my whole system. I am wondering if the dd command is a good choice for that. dd if=/dev/sda of=/dev/sdb For example: /dev/sda is my system partition (partition is on a ssd if that ...
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44 views

Disk Wipe Script Question

I have a server setup to do diskwipe. I am wondering if someone can help me figure out why the random pass is not working. Thanks!! #textPass Sectors sectors=$(blockdev --getsz ...
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202 views

GNU ddrescue imaging results — 116 errors a lot?

A little background on this. It's an 256 GB SSD drive with Windows SP3 32-bit and it's encrypted with PGP Whole Disk Encryption. The file system is corrupt and unreadable. I first ran Clonezilla to ...