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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Lost USB by dd-ing a bigger image on it [duplicate]
I had a USB flash of 32GB with actual size of around 28GB. I put an image of 28.5GB containing 2 CentOS partition, which has some free space at the end of it. I thought it will not harm my USB. But ...
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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?
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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 ...
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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 ...
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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 ...
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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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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 ...
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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 ...
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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.
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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/...
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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 ...
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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 ...
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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....
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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What do I do after directly copying an NTFS volume from one device to another with ddrescue?
I used ddrescue in a Ubuntu Live boot to rescue data from a failing 3TB external HDD formatted as NTFS. I had it copy the data directly to a new physical device, i.e. I didn't create an intermediate ...
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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: ...
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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 ...
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Recovering data from failing hard-drive using ddrescue
Lately my hard-drive have failed me. I'm trying to rescue some important data from it and right now im stuck doing this... I've read about ddrescue data recovery tool and it seems like it's doing its ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 - | ...
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GNU ddrescue "Rescued" is larger than the HDD
I am using ddrescue to recover data from a failing drive. The drive is being read as 596.2 GB via the lsblk command.
The thing that is confusing me is that ddrescue is showing that it has, so far, ...
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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 ...
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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 ...
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ddrescue from drive intermittantly cutting out, ways to automate power cycling via software?
Have a failed Windows/NTFS drive. I was able to connect to another PC via USB-to-IDE cable and recover most of the drive with a Knoppix 7.2 LiveUSB and ddrescue/ddrutitliy. I've recovered most ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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/...
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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 ...
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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 ...
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