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1answer
13 views

ddrescue - what are bad sectors look like in the final?

I've read tons of docs on ddrescue, but still can't get sure on such a thung: how the bad sectors look in the output image file(or disk) at the end of the ddrescue's work? Manual says it skips bad ...
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0answers
55 views

Trying to mount ddrescue image from a 1tb crashed ntfs drive

I asked this on Ask Ubuntu without success and they recommend to repost it on superuser, so here i am! It was time, after 5 years my 1tb external drive with all of my family photos and all my music ...
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0answers
50 views

Mount Core Storage partitions on image of hard drive created with ddrescue

How do I mount a whole-disk image with an encrypted CoreStorage partition? Update: I found the answer! It was super-simple: hdiutil attach -nomount somePath.img The "nomount" flag is critical ...
0
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1answer
60 views

Windows ntfs partition hard disk fail recovery attempts

This is part question and part response. I'm not a Linux guy but I've used from it time to time. Here is my case: An HDD with Windows NTFS partition has failed, no recovery software on windows has ...
0
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3answers
59 views

Why can't ddrescue just recover blocks used by the filesystem?

It seems that ddrescue tries to recover all blocks on a disk or partition, even ones that don't contain files. Wouldn't it be possible for it to find out which blocks actually hold files by looking at ...
2
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0answers
57 views

Cannot mount image made with ddrecovery in Fedora

I have recently made a switch to Fedora. I have an NTFS disk image that I made from a failing hard disk on Ubuntu using ddrecover. Under Ubuntu, I could mount the image just fine and recover the ...
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0answers
50 views

circumvent directory I/O error

I recently recovered a large amount of data from a failed external hard-drive with ddrescue, which did an excellent job. However, after running the tool several times and with different options, it ...
0
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0answers
38 views

Can't get ddrescue to start at a specific position

I have been trying to read data from a failing disk with bad sectors. All went well, albeit horribly slowly, until it stopped reading and skipped to a position of 272GB out of 280. I power cycled and ...
0
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1answer
48 views

Will dd_rescue wipe my output hard drive?

I'm planning to use dd_rescue (as per IT support's instructions) to try and get the data contents of a faulty hard drive. We only have one external hard drive to back up onto which has enough free ...
2
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2answers
565 views

Why is it impossible to compress on the fly images by ddrescue?

I'm trying to recover files on a dying hard drive, using GNU's ddrescue. The drive is rather large (1TB), and all I have to store the image is another 1TB drive. ddrescue fails near the end, with an ...
2
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2answers
224 views

ddrescue has slowed down massively on os x

I'm using ddrescue to image a drive, and it's slowed down to about .1 % as fast as it started, at this rate I'm not sure if it will even finish, at any rate, I'm not sure I can tie up this machine ...
0
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0answers
69 views

Is dd_rescue destructive when I resume a copy in “backward” mode?

I am imaging a damaged 500gb ext3 filesystem using dd_rescue. By around 403gb of data copied, the program finds very numerous bad sectors (over 8000 so far) and runs miserably slow. If I stop the ...
3
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0answers
365 views

Reading bad blocks from hard disk too slow in Linux

I'm trying to recover data from an old 320G hard drive (full of bad sectors) to a new one. I found that ddrescue is a good tool for this task due to it's smart algorithm. I have already done this once ...
0
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0answers
124 views

ddrescue input position ignored when using a logfile

Any idea how to address specific hard drive areas when using ddrescue with a log file? I'm cloning a damaged hard drive using ddrescue and a log file to remember what was already cloned. When the ...
1
vote
0answers
952 views

Can't mount image of NTFS partition created by ddrescue

I've used ddrescue successfully in the past but I'm having no luck this time. Usually, I make an image of the partition, run a fsck or whatever else on the image to fix file system errors, mount it ...
0
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0answers
42 views

Recovering a striped volume

Is it possible to recover a striped volume (6 TB from two 3 TB disks) that has had all it's data removed with sudo rm -rf? Assuming no overwrites. As a last resort (I'm a student with very few ...
2
votes
1answer
214 views

ddrescue: can I resume copying to a different destination drive using the log file?

I need to recover a 3TB USB HD. I started making a copy yesterday by running ddrescue in Terminal entering: sudo ddrescue -v -f -n /dev/disk3 /Volumes/Seagate/disk_rescue.dmg disk_rescue.log I've ...
0
votes
1answer
698 views

What happens after ddrescue?

I'm currently having a close call with a hard lesson! My 2TB WD Green drive started throwing bad blocks after a year of service. I have recovered all but 82kb of data to an image on a spare 3TB drive ...
1
vote
2answers
393 views

Can you create a hard disk-image of the same size as the target drive with GNU ddrescue?

I'm planning on using GNU ddrescue to create a drive image of my failing 1 TB hard drive. Can I store the image sufficiently on another 1 TB hard drive? I figure the answer would be no because the ...
3
votes
1answer
503 views

dd/ddrescue style tool for SSDs that skips writes for identical blocks

I have a dd copy of a filesystem from a SSD I want to restore back to the same SSD filesystem due to a bad OS crash, putting it back into a known good state. 95% of the blocks will be the same, so to ...
0
votes
4answers
3k views

how to resume ddrescue process?

I have to recover my 1TB USB HD. I'm using ddrescue to accomplish this. Is there a way that I can resume ddrescue once I start it? I'm using the command: ddrescue /dev/sdd1 ./bye1t.dd_rescue.image ...
1
vote
0answers
503 views

ddrescue rescued “0 B” under current status?

ddrescue rescued "0 B" under current status? Here is a picture of the screen showing 0 bytes rescued and with /dev/sda messages on the side (are they error messages?): There doesn't seem to be any ...
3
votes
1answer
203 views

Mapping dd commands to ddrescue

I'm trying to back up the Windows Recovery Partition on a laptop using ddrescue. I tried using dd, but I kept getting an Input Output error (at about 9.65 GB through, if it matters), so I learned that ...
7
votes
3answers
7k views

Is there any way to speed up ddrescue?

I had a 500GB drive HDD crash about 5 days ago. I used ddrescue on the important partition a few days ago, and it's been on "Trimming failed blocks" for almost 2 days now. Original command: ddrescue ...
3
votes
1answer
629 views

Can you successfully clone a Mac OS X boot volume directly to another larger volume with ddrescue?

Can you clone a Mac OS X boot volume (specifically a "Mac OS Extended, Journaled" a.k.a. JHFS+ volume) directly to another, larger volume using ddrescue or even dd, and have the target volume end up ...
6
votes
3answers
1k views

How can I generate a list of files from a list of sectors?

I've had a hard disk failure and managed to rescue some data from the disk (1TB) with GNU's ddrescue. The last 800GB of the disk were perfect, no single error, but in the first 200GB there were almost ...
2
votes
1answer
180 views

Should I run two ddrescue processes in parallel on separate logical drives?

I've got a Windows harddisk that had been partitioned into three drives: some proprietary ACER recovery partition C drive, about 90 GB D drive, about 60 GB It died hard, so now I've been running ...
0
votes
1answer
645 views

ddrescue in ubuntu

I want to copy from a damaged external HDD having a size of 500GB. I will use ddrescue for this. Can I use like the following: I want to copy only one directory(named 'Important Docs') from 500GB ...
0
votes
1answer
127 views

ddrescue overflow

I am trying to recover a partition on my broken hard disk with this command: ddrescue --r3 --force /dev/sda2 /dev/sdb1 logfile /dev/sda2 is 207 GB and contains the data I need /dev/sdb1 is a 270 ...
0
votes
2answers
749 views

In regards to ddrescue, do not run on a mounted partition

Never try to rescue a r/w mounted partition. The resulting copy may be useless. source: http://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html what does this mean exactly? I have finally ...
2
votes
2answers
426 views

What does dd do when the destination drive runs out of space?

I tried to make a drive image using ddrescue, but I'm not sure if the destination drive had enough space. Does dd just silently continue to try writing to the drive even when it has run out of space? ...
3
votes
3answers
2k views

File copying utility like rsync with error handling like ddrescue, for data recovery from a hard drive with bad sectors or hardware failure

I have a hard drive with either bad blocks or sectors that are failing to read due to potential mechanical issues, such as a bad disk head, bad motor, or some other issue that is causing the hard ...
0
votes
1answer
79 views

dd_recscue attempt yields empty .img file

I have a hard drive with a some data corruption and am attempting to recover the data with dd_rescue. I am running Ubuntu 10 running off a thumb drive drive (my primary boot disk is running Windows ...
1
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0answers
526 views

How to change hdd read error timeout?

I'm recovering data from an hdd using ddrescue. With "retry" disabled, it takes roughly 30 seconds for every unreadable sector. The hdd has tens of thousands of bad sectors and the process is taking ...