![]() ![]() If you are of the mindset that you only use Windows, then good luck finding help. If you can’t, then go find your nearest Linux User Group and ask for help. If you can install Linux, then you can do this. After you get Linux installed, then you can open a terminal window and run the commands above. If you want to recover the old drive to CD, then you need a burner before you start, but you will have enough space on your tasty new drive. Leave enough room at beginning of the drive to reinstall Windows if you want, like 20GB or so, then make a 1GB swap partition for Linux, then a “/” or root partition of 10-20GB, then make the rest of the drive “/home” or part of it “/home” and room for another NTFS data partition. The new drive will probably be 200-250 GB. Leave yourself some space, meaning partition your drive, leaving some space to restore your files. Have someone get you a copy of Ubuntu or Kubuntu (which I prefer). Install the new drive and set to master, set the old drive to slave. Neo, you may be over your head, but if you can read, you can do it. If you want to know more available options check dd_rescue man page Sudo tar zcvf – /dev/sda1 | ssh /datarecovery/’ ![]() ![]() #tar zcvf – /dev/sda1 | ssh /datarecovery/’ If you want to take this image in compressed format you can use the following command format If you see the following error at the time of copying you can ignore this errorĭd_rescue: (warning): output file is not seekable! This will be prompetd for password of the username you have menctioned in the above command after entering the password dd_rescue strats copying obviously it will take some time to copy over the network. Sudo dd_rescue /dev/sda1 – | ssh ‘cat /datarecovery/backup.img’ #dd_rescue /dev/sda1 – | ssh ‘cat /datarecovery/backup.img’ If you want to copy your disk image to remote machine over ssh you need to use the following command Sudo dd_rescue /dev/sda2/backup.img /dev/sda1Ĭopy Disk Image to remote machine using SSH #dd_rescue /dev/sda2/backup.img /dev/sda1 ![]() If you want to restore this image use the following command This will mount all the data from the backup.img under /mnt/recoverydata now you can try to access the data it should work without any problem. Sudo mount /dev/sda2/backup.img /mnt/recoverydata #mount /dev/sda2/backup.img /mnt/recoverydata Now you need to check the backup image consistency this will check for is there any problems with this image.Īfter finishing this checking you need to mount your disk image in to your other hard disk This copies an image of /dev/sda1 to sda2 Sudo dd_rescue /dev/sda1 /dev/sda2/backup.img If you are using ubuntu linux use the following command # dd_rescue /dev/sda1 /dev/sda2/backup.img If you have a damaged hard disk /dev/sda1 and you have an empty space hard disk /dev/sda2 Now if you want to copy data from /dev/sda1 to /dev/sda2 use the following commnd Now we will see how to use ddrescue under damaged disk Install ddrescue using the following command So hardbs is best be set to the hardware sector size (most often 512 bytes) and softbs to a large value, such as the default 16k. Large block sizes result in superior performance, but in case of errors, you want to try to salvage every single sector. The two block sizes are a performance optimization. If you have one spot of bad sectors within the partition, it might be a good idea, to approach this spot from both sides. The output file will just be filled in further and not truncated as with other Un*x tools. You can just continue at any position later. If you interrupt the process of copying, you don’t lose anything. The data rate drops very low, when errors are encountered. You can write a log file, to see, where all these errors are located. The output file naturally will have holes in it, of course. dd_rescue instead will try to read and if it fails, it will go on with the next sectors. You can setup a loop device, and repair (fsck) it and hopefully are able to mount it.Ĭopying this partition with normal Un*x tools like cat or dd will fail, as those tools abort on error. You burn it on CD-Rom, just to never lose it again. Now, you want to copy the whole partition into a file. However, you can’t access the files, as the file system is damaged. Just getting all the data off it and retiring it seems to be suitable. Imagine, one of your partitions is crashed, and as there are some hard errors, you don’t want to write to this hard disk any more. If the copying process is interrupted by the user it is possible to continue at any position later. It tries to read and if it fails, it will go on with the next sectors where tools like dd will fail. Like dd, dd_rescue does copy data from one file or block device to another.dd_rescue is a tool to help you to save data from crashed partition. ![]()
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