Tagged Questions

`GNU ddrescue` is a data recovery tool for block oriented media.

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2
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1answer
24 views

ddrescue prohibitively slow because of I/O timeouts?

On Ubuntu, my disk gave its SMART notification so I immediately tried to copy files to another disk. That failed. So now I'm trying ddrescue (partition to partition). It is running ridiculously ...
1
vote
0answers
45 views

Resuming ddrescue always restarts at first retry?

I'm using ddrescue to make an image of a faulty harddrive. I followed a tutorial that used the -r3 and logfile option. After a few hours, the tool made one pass and tried to read the bad sectors on ...
1
vote
0answers
31 views

What are some suggestions for using hdiutil (or other tools) to assist in recovery of files from dmg image?

Background I am attempting to recover information from a USB using GNU ddrescue 1.18.1. I have completed the rescue operation output from the /dev/disk2s2 partition to a disk image file on a ...
3
votes
0answers
208 views

How to estimate loops/time for completion of GNU ddrescue (1.18.1) using current status?

Background/Context: I am currently running GNU ddrescue 1.18.1 to recover data from a USB that experienced a cable disconnect while I was writing a virtual disk image onto the disk2s1 partition. ...
2
votes
0answers
50 views

Drive disappears from dev during ddrescue copy or testdisk recovery

I have been trying to recover data from a Seagate 7200.11 1.5TB drive (2 ext4 partitions_ for 3 days now, predominantly with ddrescue and testdisk, but because of some critical error on the disk ...
1
vote
1answer
50 views

Read files after running ddrescue

I have run ddrescue on a hard disk, and got all data (2 partition) to another disk named part1.img and part2.img. How to proceed to read (list) the files in part2.img? I use fedora 14, 32 bit
1
vote
1answer
940 views

ddrescue extremely slow on USB hard drive

I'm recovering the HDD from my laptop that died (wouldn't boot up at all, Disk Utility reported that there were no problems, but wouldn't mount the disk). I've hooked up the HDD through the USB ...
1
vote
2answers
301 views

Hard disk drive disappeared

Yesterday I performed a hard-reset while Linux was booting. This led to a hard issue with the HDD (UNC while recovering journal). I had to use ddrescue instead of dd because dd crashed on I/O error. ...
2
votes
1answer
1k views

Resetting MMC controller without physically removing the card?

I'm trying to rescue data from an SDHC card using ddrescue: while true ; do ddrescue -d /dev/mmcblk0p1 mmc.img mmc.log ; done The controller, I'm not sure if it's the one on the card or the one in ...
5
votes
2answers
460 views

How can I merge two ddrescue images?

I have two ddrescue images created from contiguous recovery attempts of the same media. The two images are the same size but have complementary data: $ od part-one/ddrescue_image --skip-bytes ...
1
vote
2answers
181 views

Migrate Ubuntu to bigger HDD

I have a multi-boot system and want to push my Ubuntu installation to a bigger partition on the same hdd, because I want the system to have more memory available. What I know so far is I can clone ...
5
votes
2answers
2k views

Is this ddrescue command doing anything?

In the course of trying to recover data from a failing hard drive, I am running the command ddrescue. The command has been running for 9 days, and I thought from the sound of disk activity that maybe ...
1
vote
5answers
615 views

What rescue disk (rescue CD/DVD) to recover data from failed HDD would you recommend for first time user?

What rescue disk (rescue CD/DVD) would you recommend for an user which unfortunately needs to rescue data from a bad disk (filesystems does not mount when using LiveCD, though fdisk looks O.K.) for a ...
1
vote
2answers
4k views

How do I resize a disk image device?

I'm trying to reduce the size of a backup drive image. Original disk had these partitions: Model: ST916082 1A (scsi) Disk /dev/sde: 160GB Sector size (logical/physical): 512B/512B Partition Table: ...
3
votes
2answers
465 views

ddrescue: reread only good sectors?

Before imaging the corrupted filesystem to a file on another hard drive, I decided to dry-run ddrescue (throwing rescued output to /dev/null) just to see how much data is unreadable: # ddrescue -d -b ...
2
votes
1answer
907 views

How to split a ddrescue disk image and how to use it again?

I have a 500GB external HDD that I need to rescue the contents of. Unfortunately I only have two 400GB partitions to save the contents to. Can I split the disk image as: ~$ cd /mnt/part1/Recovery/ ...