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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.

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ddrescue second run, running time: n/a

I am running ddrescue to rescue a Windows 10 drive to a new SSD from a gparted media drive. I ran it successfully the first time with: sudo ddrescue -f -d -n /dev/sda1 /dev/sdb1 /path/to/map.log. I ...
David Barcene's user avatar
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Mapping ddrescue and data from a particular head on a hdd

I'd like to clone data from a particular head of a HDD. Can I do a ddrescue and then divide the rescue image by the number of heads to get multiple images, each with data from one head/surface? ...
bmcws's user avatar
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Can I use a partition as ddrescue destination?

I have a large disk (8TB) and I want to try and rescue a smaller disk (1TB). Is it possible to partition the larger disk and use only that partition for the rescue? Or ddrescue will format the whole ...
AMasc's user avatar
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ddrescue 0% recovered - is the external hard drive dead?

I assume my external exFAT hard drive is dead. There are many questions about ddrescue but typically the poster manages to recover something. I just want an analysis of my results. ddrescue shows: I ...
80432232's user avatar
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ddrescue: error when resuming rescue

After running ddrescue ddrescue /dev/sdb1 /media/lukas/Elements/sdb.dd /home/lukas/sdb.log to restore a currupted 4TB disk to a file for over a week the computer has been plugged out by accident. `` ...
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Recovering files from SSD using DDRescue

I'm not sure if the SSD with lost partitions and errors can be recovered as is, it is sdc that I need to recover files from but it has no partition id like sdb which has sdb1 ntfs. I use this command ...
coder's user avatar
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what is the size of a ddrescue mapfile, relative to the disk image that I'm trying to repair?

I've got a 1TB hard drive image that I've copied to my /home partition (2TB) using dd. I have 277GiB free on that partition. I also have a 2TB external hard drive That has slightly more than 1T free. ...
Barton Chittenden's user avatar
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Confused source with destination with ddrescue

I was about to recover second out of five failing RAID disks with ddrescue, and sudden peculiar twist occurred in my mind, and I typed sudo ddrescue --verbose --idirect --no-scrape -f /dev/sda /dev/...
Xenox's user avatar
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Linux, Hard drive : how to avoid read failures from USB adapter after first error

I regularly try to save data from failing hard drives. I use a sata USB adapter, and ddrescue. The issue is that when it encounter a bad sector, it result in a read error, and all next read will also ...
contremaitre's user avatar
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ddrescue and scratched DVD: Is it possible to change optical drive?

I am currently ripping/rescuing an old scratched DVD with ddrescue using a USB BluRay-reader, and this DVD has ~1GB of bad-sector which I still want to try and save using disc-cleaning tools and ...
Odecif's user avatar
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ddrescue: proper command to make copy of a copy

I am copying my failing/dying hard drive with ddrescue, and after almost 15 days, the process is around 84% and expects to finish Pass 1, in next 4 or 5 days hopefully. History (With reference to ...
Irfan's user avatar
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How can I find out which sectors are used by files on NTFS?

I'm recovering data from a failing hard drive using ddrescue. It's a 2TB disk, NTFS filesystem, but only about 200GB or so is actually used, so rescuing it in its entirety would be a big ol' waste of ...
user1655754's user avatar
2 votes
1 answer
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ddrescue: How to restart from pass 1?

I've been trying to recover data from a 500GB WD Scorpio Blue drive I found recently that was from an old Acer laptop. I ran it for about a day before the read rate had slowed down to about 50KB/S and ...
mrexclusivejr's user avatar
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What does ddrescue logfile indicate?

I am running ddrescue, trying to copy my dying 2TB Seagate Baracuda harddrive to a new 4TB hard drive. Now, it has been running for 5 days now, and on the terminal screen I see there are some read ...
Irfan's user avatar
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ddrescue, second diskcopy when used larger disk for diskcopy for first copy form a failing HDD

I have a failing hard drive and after first using Testdisk which was going on very slow, I am using ddrescue to copy the disk. The original disk is a 2TB drive and had 4 NTFS partitions (which I had ...
Irfan's user avatar
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How to mount a ddrescue image if no partition is recognized?

On macOS Ventura 13.1, I successfully rescued a corrupt, not mountable disk (Mac OS Extended (Journaled)) via ddrescue: ddrescue -v -f -n /dev/disk3s2 /Volumes/emptyhd/hd.dmg ~/logfile.log After some ...
bzero's user avatar
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Can't recover files from a crashed SD card although there are no I/O errors

I have a SD card that was in my Android phone. Unencrypted. With app data and pictures on it. Then one day it was not recognized anymore and it was empty. I wasn't worried because I have backups but I ...
stev-e's user avatar
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How to boot again with Windows 95 after a byte-by-byte HDD copy?

Background I have a very old PATA HDD (1998 Fujitsu 3.2GB) plugged into a very old computer (Pentium 2 / Asus P2L97 motherboard) with one bootable partition (Windows 95 and Fat32 file system). As ...
Damien Yearwing's user avatar
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Is it safe to re-run `ddrescue` if previous run was device-to-device using `-f`?

I initiated the following: ddrescue -f -r3 /dev/sdb /dev/sdc mapfile After 4 days I got a "Finished". The mapfile contains: # Mapfile. Created by GNU ddrescue version 1.26 # Command line: ...
stevemagg's user avatar
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ddrescue slow when it copy the error blocks [duplicate]

I use the ddrescue to recover the data from the old hard disk, but I found it running very slow when it copy the failed blocks , can advise any options that can use on ddrescue to skip the error ...
Ben's user avatar
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Can a broken cdrom drive cause I/O errors in programs like dd, ddrescue, etc.?

Can a broken cdrom drive cause I/O errors in programs like dd, ddrescue, etc. even if the disc itself doesn't contain bad sectors? Note that I'm interested in purely technical, factual answers, not ...
cssdev's user avatar
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I/O errors not bubbling up to ddrescue

I'm trying to get an image from a damaged USB stick using ddrescue. The process works for the first 100MB of the drive then gets completely stuck: the ddrescue output is frozen (not moving even for ...
Congelli501's user avatar
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ddrescue --generate-mode produced mapfile for resume, but missing non-trimmed blocks?

I started ddrescue to recover a failing 2TB WD drive from my NAS. Although I specified a logfile, unfortunately I was running ubuntu in trial mode from a bootable flash drive and did not write the ...
zardano's user avatar
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1 answer
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Recovering data from harddrive with defective MBR

a friend of mine currently has a problem with his external Harddrive. Unfortunately it's the only drive he's got a lot of old family photos on, so it's quite important for him. Behavior and my steps ...
Guest's user avatar
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ddrescue : after having rescued a single partition, can I rescue the whole drive?

It might be a silly question but I had a dying external HDD with one single NTFS partition. I may have been naive, but I thought it would be better to use ddrescue to rescue the partition and not the ...
ant1's user avatar
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1 vote
2 answers
483 views

Continue ddrescue from a corrupted log file

I ran ddrescue a few days ago in my 180GB partition, but after 3 days (and 99.91 % rescue and in phase 3 the last time I check) the system frozen, so I power off the computer by keeping pressed the ...
Johnpaga's user avatar
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1k views

What do you do after ddrescue finishes?

It may seem like a simple question but even the manual doesn't seem to address it. The rescue completes with 24 bad areas. I access the target drive but it says "Folder is Empty". Presumably ...
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Using DDrescue to Backup Local Disk on Corrupted vBox VDI

After some crafty, -guessing-, I finally got this command to create a local .img of a remote disk (vbox) that is failing. It work, -slowly-, but it works: ssh root@example ddrescue -d /dev/sda1 - | ...
mjones's user avatar
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4 votes
1 answer
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Copying raw partition sequentially, in chunks, with error recovery

Normally if I want to copy a raw partition /dev/sdaX (with i/o errors when reading), I would just go with ddrescue <src> <dst>. The case here is that I'd like to be able to copy this ...
Mike's user avatar
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What type of hard drive hardware failure leads to this stripy read failure pattern?

I'm in the process of recovering data using ddrescue from a failing ~1TB external hard drive. Much of the data is recoverable, which is great, but the symptoms are interesting, and I'm just wondering ...
Chris Billington's user avatar
2 votes
1 answer
654 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 ...
ultradj83's user avatar
2 votes
0 answers
304 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 ...
ManSamVampire's user avatar
2 votes
1 answer
2k 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 ...
Skoobie Doobie's user avatar
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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 ...
Lerian Acosenossa's user avatar
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2 answers
596 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 ...
NorbiPeti's user avatar
4 votes
1 answer
4k 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 ...
ylluminate's user avatar
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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 ...
otterrisk's user avatar
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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/...
Leslie D. Dunn's user avatar
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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 ...
Xtreme's user avatar
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1 answer
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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 ...
pancake's user avatar
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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 ~ $ ...
DGM's user avatar
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2 answers
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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/...
distractedhamster's user avatar
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1 answer
972 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. ...
Ian Cooper's user avatar
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2 answers
1k 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 ...
Nebula's user avatar
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2 votes
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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 ...
TheClassic's user avatar
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722 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 ...
endolith's user avatar
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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 ...
Danny Lo's user avatar
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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 ...
Jack's user avatar
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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 ...
The Supreme God's user avatar
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356 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 ...
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