Questions tagged [ddrescue]

ddrescue is a data recovery tool that copies data from one file or block device to another, trying to rescue the good parts first in case of read errors.

Filter by
Sorted by
Tagged with
2
votes
1answer
41 views

How to rescue a failed NTFS HDD?

I'm attempting to rescue a failed NTFS HDD via ntfsclone: I began to copy sector by sector via: ntfsclone --rescue --force --overwrite '/dev/sda1' '/dev/sdb1' It runs quickly up to 30% then tries to ...
0
votes
0answers
16 views

Find corrupted files on a partially recovered ext4

I have hard disk that was damaged by impact when it was running. The disk had 6 partitions and some unallocated space too. After the impact, 3 partitions appear to be fine and I am able to read/write ...
0
votes
1answer
32 views

I cloned a HDD with ddrescue. What next?

The original drive would not pass chkdsk or a clone using Macrium Reflect or EaseUS. I read up about ddrescue and decided to give it a shot. This is after all just a hard drive I used for installing ...
0
votes
0answers
21 views

Mounting a ddrescue image of an encrypted drive?

My time machine backups hard drive recently failed, and I used ddrescue to create an image of an encrypted partition on that drive (it was an encrypted HFS drive). The ddrescue ran and seems to have ...
0
votes
1answer
62 views

How to recover an ext4 partition with a bad superblock on a dubious 500GB internal hard drive?

I bought this hard drive 6 months ago and it shouldn't be failing like this. It's a 500 GB sata III internal seagate that I have being using on an old ECS G31T-M9 computer with archlinux installed. I ...
0
votes
1answer
30 views

Hard drive stops working during ddrescue and is making odd sounds

We have an older HDD (WD Black 500 GB) that was still in use for the data it had but then at some point, Windows wouldn't boot with the drive installed. I checked with a Linux installation and the ...
0
votes
1answer
170 views

How to mount NTFS partition image in Windows created with dd on Linux?

As per the title, I need to work with an image created from Linux via ddrescue /dev/sda3 image.img in Windows. Notice that this is an image of a partition, not the entire drive. How can this be ...
0
votes
0answers
43 views

ddrescue - wrote over the mapfile(logfile) by mistake

I was using ddrescue running on an Ubuntu live usb stick to recover data from a 240GB SSD. It was about 75% done, when i oppened an app that was eating a lot of ram and the system freezed. I restarted ...
0
votes
2answers
543 views

ddrescue encounters read errors only, no good reads at all

I tried to rescue a disk connected via USB to a Linux box using GNU ddrescue, but after running over the first 2 GB it couldn't rescue anything but instead reported only read errors. To avoid further ...
0
votes
1answer
50 views

GNU DDRescue 1.25 to copy a failed to be recognized 4.0TB HDD to rescue. Completed “mapfile”, but what do I do with this mapfile file?

I have : Gigabyte X399 Aorus Gaming 7 AMD Thread Ripper 1950X 32GB Ram O/S=OpenSuSE Leap 15.2 2 (new) X 4.0TB WD(Blue)[Raid 1] 2 (corrupted existing) X 4.0TB WD(Blue)[ex-Raid 1] HDDs Also QNAP TS/...
0
votes
1answer
212 views

Questions about ddrescue reverse option

In ddrescue you can add option -R (reverse) to read backwards from the source. Will this affect the recovery speed? If you have a log file (mapfile), you can then easily switch between forward and ...
2
votes
1answer
262 views

Old Windows 10 BitLocker SSD does not boot after cloning from it with gddrescue in Linux

I have a problem booting my dad's HP computer after copying data from its SSD to a new SSD. Neither the old, nor the new one boots. Please help, I am afraid I may have lost all my data. I need the ...
0
votes
0answers
21 views

External hard drives unresponsive, even the one cloned with ddrescue

the thing is that i have a hard drive that i just took out from my laptop to be replaced by an SDD, it was the secondary drive so i didn't format it or anything due to the fact that i would just put ...
0
votes
0answers
19 views

whille recovering 2TB segate backup plus using ddrescue in ubuntu progress hanged up

ddrescue -d -f -r3 /dev/sdc1 /dev/sdb1 /home/rescue.logfile GNU ddrescue 1.22 ipos: 43881 MB, non-trimmed: 75363 kB, current rate: 0 B/s opos: 43881 MB, non-scraped: 0 B, ...
1
vote
0answers
84 views

Why can't I get ddrescue to clone a drive with an extended partition?

I'm trying to clone a drive with a number of partitions (using an old live DVD); however, the result ends up with the extended partition being empty. This is the command and the result: mint@mint ~ $ ...
0
votes
2answers
55 views

Why does disk read/write seem to half when running 2 dd processes on 4 different disks?

I'm trying to clone 2 external firewire disks on my debian fileserver using ddrescue. I'm running 2 processes in 2 terminals like so: sudo ddrescue -d -r3 /dev/sdx'/mnt/disk1/image1.img' '/mnt/disk1/...
0
votes
1answer
161 views

Use of ddrescue - saving a failing EXT4 drive -fsck results in all data in to lost+found

I’ve tried….I’m now out of my depth! Any help is very appreciated 😊 I’m currently trying to rescue some data from old disk drives, from the days before I religiously backed everything up. ...
0
votes
2answers
230 views

Disk times out with I/O Errors while using ddrescue

I am trying to use ddrescue on Ubuntu 19.04 to image a failing external hard disk. There is a primary Windows NTFS partition of 220GB and a secondary Recovery NTFS partition of 14GB. ddrescue is able ...
2
votes
0answers
160 views

fixing ntfs partition after ddrescue

I had some really slow disk access and determined my disk was unhealthy. I was still able to see file contents and use most of the drive contents in Windows, but a few files were inaccessible. This ...
1
vote
0answers
182 views

How do I know if the MFT is complete in my recovery of NTFS drive?

I've been running ddrescue on a failed NTFS drive. I don't remember what's on the drive, but I doubt it's important. GNU ddrescue was able to recover about 80% of the drive easily, but then is very ...
1
vote
2answers
665 views

Can ddrescue skip errors faster?

I try to rescue some data from my drive (with an NTFS partition), which out of sudden stopped working. Under Windows it doesn't mount properly into the system, causing a lot of hang-ups. I managed to ...
0
votes
1answer
234 views

ddrescue really slow on failing drive

I have a failing drive which reads at 24 kbit/s.  As it its total capacity is 3.4 TB, it will take probably 3 years to recover the data.  Is there any way if performing a backup of the MFT (table of ...
0
votes
1answer
73 views

How to correctly parititon a drive after a gddrescue with different physical sector size

Alright so I have been thinking about upgrading to an SSD for a while now, since my HDD was old as hell and was already getting some uncorrectable sectors as the replacement sectors were already ...
1
vote
0answers
99 views

ddrescue restore image to same disk

Our 4TB drive was failing. I unmounted the principal partition and ran ddrescue /dev/sdb1 /work2/timhay01/work.img /home/timhay01/work_backup.log --try-again --force --verbose where /work2/ is mounted ...
1
vote
1answer
501 views

Maxiumum recovery of data from old floppy discs with padded bad sectors and multiple passes

I've a collection of old 3.5" floppy disks that I'm looking to recover as much data as possible from. The issue is due to the structure of some of the files, I need the length of all the files to be ...
0
votes
1answer
380 views

Copied failing disk with GNU ddrescue, did I miss something?

Let me explain what's in my mind so you guys can tell me if I make something wrong. I have two external hard drives, one of which is failing(Windows tells me to format it to use it again), the second ...
2
votes
0answers
144 views

Analyse allocated space in Ext4 partition to improve data recovery efficiency

I'm trying to use Lubuntu to recover as much data as possible from a failing 4TB hard disk drive. According to GParted the main partition, formatted in Ext4, contains only 553GB of data. I attempted ...
0
votes
0answers
135 views

rescue data of scrachted bluray/dvd with broken toc/index

My goal is to rescue data from a scratched/broken Blu-ray (probably similar to DVD) I used Linux with ddrescue and recovered 98% of the blocks during its first run: ddrescue -n -b2048 /dev/sr1 ...
0
votes
0answers
151 views

Windows 10, bad blocks, ddrescued to new disk using Linux, boot fails

My wife's Windows 10 machine (a Dell Inspiron 530) had an old 500G SATA disk in it. It developed bad blocks, so rather than wait for it to die and have to buy a new copy of Windows 10 (it was upgraded ...
0
votes
1answer
463 views

How can I attempt to read bad sectors from the end of the disk, using ddrescue?

How can I attempt to read bad sectors from the end of the disk, using ddrescue? I have dynamic volumes and the LDR is kept at the end of the disk, unlike MBR. I remember that I've tried --reverse but ...
4
votes
2answers
911 views

ddrescue reset usb device on read timeout

I have a damaged external usb hdd. When i connect the device to the pc i can access the file system for round about a minute. After that period the disk keeps spinning but every io operation times out....
1
vote
2answers
971 views

Can I recover a single partition with ddrescue?

I have a failed hdd (seagate 1Tb) with bad sector. I want to make an image of it with ddrescue. The problem is that I don't have a 1tb hdd to put the image on. The files that I have to rescue are ...
0
votes
1answer
2k views

How to speed up ddrescue

I am trying to backup my failing external USB HDD Maxtor M3 4TB using ddrescue. In the beginning, I was getting around 300kB/s so I ripped the external box and connected the drive directly via SATA ...
1
vote
1answer
178 views

How to merge ONLY mapfiles of `ddrescue`? (only mapfile was mistyped)

My system is Manjaro (Arch) Linux. I have GNU ddrescue v1.23-1 (recently installed). When resuming ddrescue, I mistyped the mapfile. Now I have one image and two logfiles. On Day 1, I rescued the ...
1
vote
1answer
165 views

ddrescue stuck, Error Splicing DVD file on Linux, but not on Windows

I have couple of old scratched DVDs which I wanted to rescue using ddrescue. The problem is it shows "error splicing file" on copying files manually using PartedMagic or Ubuntu, also ddrescue gets ...
0
votes
3answers
761 views

Is it safe to use multiple different `--input-position` with ddrescue?

I need to rescue data from some 2 TB large hard-drive and am doing so in some Live-Linux in some VM, where the problematic hard-drive is connected to using USB 3 and the VM provides a virtual disk of ...
1
vote
1answer
930 views

Can't resize NTFS partition

I'm cloning an old 1TB drive to a new 2TB drive. I've successfully managed to clone it, using ddrescue and SystemRescueCD, and can now boot into Windows on my new 2TB drive. However, the drive now has ...
0
votes
0answers
48 views

Hard disk periodically hangs with large amounts of I/O

To illustrate the problem: right now I'm backing up a NTFS partition with ddrescue. The application will run for several minutes (2-3 GB) and then apparently hang. No errors are reported and it never ...
1
vote
1answer
2k views

ddrescue: Retry failed blocks after first run

I backed up a failing harddrive with ddrescue. The command I used was # ddrescue -vv -d -J /dev/sda /mnt/rescue/winxp.img winxp.map The program completed with around 60 errors. I wanted to retry ...
0
votes
0answers
439 views

Recovery of files from a Windows failing drive

A 1TB NTFS-formatted disk on my Windows 10 machine started crapping out. Following advice in other questions, I downloaded a System Rescue CD ISO, booted from it and ran ddrescue as suggested here to ...
1
vote
1answer
481 views

Gddrescue asks for a mapfile but refuses to create one

I'm using Example 3 from gddrescue's documentation here to zero-write a disk and force pending bad sectors on it to be reallocated. The same documentation states elsewhere that: If mapfile ...
1
vote
0answers
264 views

Can't mount a Windows 10 drive for ddrescue

I'm trying to run ddrescue for a drive containing a Windows 10 installation. I have shutdown the operating system with shutdown /t /s 0 to circumvent the hydrid shutdown issue. blkid shows the ...
0
votes
1answer
300 views

Can't write back a ddrescue(d) image to HD, ends up blank

I have an image file of a faulty harddrive created with ddrescue on Linux. The harddrive is 750GB, if I remember correctly, only about 30MB could not be saved. I do have some other faulty HDs and can'...
2
votes
1answer
399 views

gddrescue --fill-mode=+ with a map file of 0x00000000 0x608336000 + has left the partition table intact?

I first ran this command: ddrescue --force /dev/sda /dev/null HGST_RMA.map I just wanted a map file for blanking (therefore /dev/null). And this is what my .map file looks like before I interrupted ...
1
vote
1answer
244 views

How to explore a ddrescue image manually / interactively?

I have a ddrescue image containing data from a Btrfs partition whose first GBs were overwritten. Therefore, the filesystem cannot be mounted, so the files cannot be accessed through any filesystem as ...
1
vote
0answers
372 views

Correct command on 'gddrescue'

I'm using gnu ddrescue by Antonio. I have a broken, but not dead (checked by the photorec utility - it found and saved many files on it) a 1 terabyte usb-HDD and the goal is to create its RAW-file. ...
1
vote
2answers
772 views

ddrescue, “size on disk” lower than total size, with possible impact on performance when writing to NTFS

The backstory is in my previous question and my own answer to it. At one moment I had two partial images created by ddrescue: one file on NTFS filesystem and the other on ext4. I had noticed quite ...
0
votes
1answer
730 views

DDRescue Log File Corrupt after 6 week recovery

I've been runnning DDRescue on a 3Tb drive for almost 2 months and I had recovered about 2.8Tb when the system crashed and the log file I was using came out corrupt. I was able to recover portion of ...
1
vote
2answers
3k views

ddrescue very slow, writing to NTFS – is it worth it to convert to Ext4 now?

Two days ago I began the recovery of a 1TB failing HDD which was handed out to me with the hope that I could salvage most of it for a cheap price. At first it behaved erratically, often being ...
3
votes
1answer
334 views

Safely recover disk when I don't have enough free space to make an image and copy files out

I have a 2.7T hard drive that has been causing some problems lately, so I've bought a new 3.6T disk. The old drive contains about 2.4T of data (lots of files are hardlinked) in a single ext4 file ...