Questions tagged [ddrescue]
57 questions
79
votes
1 answer
What's the difference between ddrescue, gddrescue, and dd_rescue?
The dd command is commonly used to make image backups of a drive or partition. However, it performs poorly if the source drive is unreliable or failing. I read that ddrescue/dd_rescue is a good tool to use to recover an image from a bad drive, since…
Mechanical snail
- 5,465
10
votes
1 answer
Need help installing DDrescue on Ubuntu 16.04 thumb drive
I've done it before but I had to re-purposed that USB drive and I can't seem to figure out how I got ddrescue installed the first time around. Which file do I need from here http://ftp.gnu.org/gnu/ddrescue/ and, once copied to my bootable thumb…
PaulS
- 101
10
votes
2 answers
How to rescue scratched CDs or DVDs using Ubuntu?
I have several old CDs that have scratches and won't play anymore. The same with a scratched video DVD. Is there any chance to recover the data using Ubuntu?
mniess
- 10,904
4
votes
1 answer
Using Ubuntu to save a dying HDD, disk completely unreadable, even though it works on other OS
I have an old dying hard drive with loads of faulty sectors that I'm trying to save as much data from as I can (before ultimately throwing it out). Using ddrescue on my laptop on macOS did wonders, I was able to save about 95% of data from the…
ExtraGoofy
- 81
4
votes
4 answers
Files/Directories on exFat are not visible from Windows
Ubuntu 18.04 LTS
exfat-fuse / exfat-utils 1.2.8-1
(The latest version that will install after running sudo apt-get update.)
Linux is writing files to a Windows exFat partition on a Windows OS disk which are INVISIBLE to Windows. How do I make…
JasonF4
- 548
3
votes
2 answers
3
votes
3 answers
ddrescue failure question
I'm trying to run ddrescue on a damaged hard drive. For a while, it ran smoothly but intermittently, often going several minutes to an hour without getting any data. After, it started going fast, but only reading error, and getting tens of…
Miton
- 31
3
votes
1 answer
Use of block size in dd and ddrescue
I have seen examples of using the dd and ddrescue command, and I see that instead of asking the user for the size of the block on their device, they recommend using bs=1M and I do not understand why.
What happens if the disk sector size is 512…
MarianoM
- 705
3
votes
1 answer
Can I use ddrescue & Testdisk in ubuntu to create image to recover data?
I mistakely installed ubuntu over my 1tb drive removing essential data and photos which took about 5 mins to install, so I want to know if I can use ddrescue in Ubuntu to create a virtual image of the drive to and then use TestDisk/Photorec to…
HorizonBloom
- 81
2
votes
1 answer
Drive Recovery with ddrescue
I'm in the need of recovering data from a 1TB drive. The BIOS reported SMART error(s) and then Ubuntu was kind enough to tell me I have 2 SMART errors.
On the drive there is about 250GB worth of data. I've been utilizing ddrescue.
After about 24hrs…
Onyxdragun
- 33
2
votes
3 answers
How do you mount an hd image made from ddrescue?
Today I used ddrescue to make an image of a failed hd. I stored this image on a separate partition on my 500 Gb hd. The partition is sda8 and the filename is backup.img.
The image was of an hd that had Windows Vista installed on it. I don't care…
Robert
- 91
2
votes
1 answer
Trying to use DDRescue on a live copy of Ubuntu, how do I install DDrescue?
I am using a "live" version of Ubuntu on my computer, 20.04LTS. I want to install DDrescue. I have run these terminal commands in order:
sudo add-apt-repository universe
sudo apt update
sudo apt install gddrescue
I get this back:
The following…
John Lahey
- 21
2
votes
1 answer
ddrescue gives less error without the -r option(try reading bad sectors multiple times) than with -n option(omit bad sectors)
I have a hard drive partition (/dev/sdb1, ubuntu 16.04 partition)with bad sectors
I intend to create an image of the partition with bad sectors and then restore to a new drive/partition.
First I run ddrescue without trying to read the bad sectors…
user27665
- 143
2
votes
1 answer
How to change ownership of files recovered by Scalpel onto exfat partition?
I ran scalpel to recover files. The input disk is a copy of a failing Windows disk I made using ddrescue. The output directory (from scalpel) is on an exfat partition on my Linux disk. I used exfat because Windows can see and read that partition…
JasonF4
- 548
2
votes
1 answer
DDRESCUE - How to re-run first pass (don't do reverse yet)?
I ran ddrescue for a few days, and recovered about 60G. It had slowed to a crawl, and had an ipos of about 90M. I started again, adding -a100000, and it got another 35G in only 3 hours. It started the reverse phase, and it was now making a lot of…
Arwen
- 23