Questions about recovering data. Includes data loss due to hardware failure, software failure, and user or administrator failure (accidental delete). Please also add tags for the specific things involved, such as /raid, /ext4, /hard-disk, /rm, etc.

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2
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1answer
292 views

Can Safecopy Help Me Recover Data from a Drive that I can not Mount?

I have an old hard drive that I put data on, but it died when I tried to retrieve it, and it tells me I have to format it under Windows. Running on Linux now, can Safecopy help me even though I can ...
1
vote
1answer
300 views

mount failed to process probably corrupted CD

I wanted to check a CD from my drawer. I inserted it into my drive and issued mount. I got mount: block device /dev/sr0 is write-protected, mounting read-only mount command did not exit. I checked ...
5
votes
1answer
4k views

How to recover most recently deleted directories on NTFS partition

In Nautilus under Ubuntu 12.04, I accidentally selected several directories on a partition and deleted them at once (unfortunately, I deleted them by Shift+Delete such that they don't remain in ...
8
votes
3answers
2k views

File is mysteriously empty. Options to recover?

I have seen several posts about recovering deleted files, but this situation is different. My wife had a file called Journal.odt in which she kept a lot of important personal information such as ...
8
votes
2answers
3k views

Advanced NTFS partition file recovery techniques for damaged drives (IO errors)?

I've recently suffered a maddeningly small but quite important amount of damage to a hard drive on a ESXi host affecting a couple VMs. There's a file that I would very much like to recover, and of ...
3
votes
1answer
224 views

Commands to access a SATA drive

I've damaged the drive I had in my Windows laptop and now I want to try to recover as many files as possible. I know very little about Linux though. I have Ubuntu 10.04 on another machine. I have a ...
4
votes
1answer
2k views

Recover a reiserfs hard disk

I'm unable to mount my 300GB external (in external enclosure) HDD's single partition. None of the fsck tools add anything, they cannot even recognize the partition. I had forgotten whether I had used ...
3
votes
1answer
315 views

Busybox NAS appliance

I have a NAS appliance that crashed last weekend. The IT guys apparently / maybe didn't recover it in the right way? There's about 50,000 directories in a "lost+found" directory each with a numeric ...
1
vote
2answers
2k views

I reset my password and now I can login, but without nautilus or program menu

I recently powered on some old notebook with Linux Mint 11 (Katya) installed, and I thought I remembered my user password, but turns out I didn't. So I reset that password using the instructions here. ...
2
votes
2answers
921 views

Retrieve deleted files on Linux VM guest

I use Ubuntu on VMware to learn how to use Linux. I used rm on some folders and mistakenly deleted some files from /etc. I have some very important files on it. Is there a way to retrieve that files, ...
1
vote
2answers
2k views

Recover many files using ntfsundelete

I am using the following command to scan for deleted files: sudo ntfsundelete /dev/sda1 -S 400m-20g -p 100 How can I restore the all of the results? I have tried: sudo ntfsundelete /dev/sda1 -u ...
1
vote
3answers
902 views

Accidentally formatted Ubuntu partition to NTFS. Recover?

I accidentally formatted my Ubuntu partition in Windows 7 (quick format). Is there any way to recover the partition and data?
0
votes
1answer
228 views

recover mysql databases after reinstall debian

I've recently reinstalled my Debian server but forgot to backup mysql databases which were in folder /var/lib/mysql. I need to recover them and tried to use PhotoRec but I can't find the mysql ...
7
votes
3answers
531 views

Best file system for removable media

Recently I had a SD card destroyed ( software wise ) on me. Basically as well as I can figure it out, all the metadata was wiped (ext4 card). This happened when I was working and suddenly had to write ...
8
votes
1answer
5k views

How to check/test .tar.bz archives?

I've been using tar with its "--use-compress-prog=pbzip2" function to archive my files then compress them with pbzip2 to get an "*.tar.bz" archive. Afterwards I checked the resulting file with ...
2
votes
2answers
223 views

Is there a way to undo the 'cpp' command in terminal?

I accidentally typed cpp Scriptname.py DestinationDirectory, intending to copy the Python script into the folder. I realized afterward that I should have used cp, but now my Python script is ...
4
votes
2answers
3k views

Salvage files from ext3 filesystem with physical errors

I have a disk from a crashed Linux laptop with files on it that the unhappy owner would like to have back if at all possible (no backup solutions please). I have not had anything to do with it ...
4
votes
1answer
637 views

Restoring an open file

I have an interesting problem which may or may not have a solution but I'd love to have one if possible: On Solaris an open log file has been removed, which still continues to be populated while the ...
5
votes
2answers
2k views

Accidentally deleted the partitions on my boot disk. The system is still running. How can I recover?

I just accidentally scrubbed all the partitions from the wrong disk. /dev/sda is the boot disk, and /dev/sdb is a new disk I am trying to set up as a RAID mirror. I accidentally fat-fingered it, ...
6
votes
1answer
705 views

How are files laid out in ext2/ext3/ext4?

A few days ago all my metadata on a ext4 format flash card was overwritten. I am now going to speculate on how this happened. This is pure speculation. It happened just after I used a different ...
2
votes
1answer
148 views

dag.repo overwritten

I accidentally overwrote dag.repo by trying to add this [dag] name=DAG RPM Repository baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag gpgcheck=1 enabled=1 does anyone have the ...
1
vote
1answer
7k views

How to restore a Fat32 filesystem under Linux

Here is what happened: I used the Laptop and accessed some data on my usb stick. Then I closed the Laptop putting the system into sleep mode. The USB-Stick was still plugged in. After the laptop was ...
7
votes
5answers
20k views

How to salvage an unreadable usb flash drive

I have a 16GB USB flash drive that somehow got corrupted to the point in which even fdisk -l can't find it (I get a one-line error message saying: "Unable to open /dev/sdc") However, it is being ...
22
votes
4answers
35k views

Recovering ext4 superblocks

Recently, my external hard drive enclosure failed (the hard drive itself powers up in another enclosure). However, as a result, it appears its EXT4 file system is corrupt. The drive has a single ...
5
votes
2answers
517 views

Recover deleted file that is currently being written to

I started downloading a big file and accidently deleted it a while ago. I know how to get its current contents by cping /proc/<pid>/fd/<fd> but since the download is still in progress ...
4
votes
2answers
4k views

Why can't I copy my DVD with dd?

I tried dd, dd_rescue and ddrescue, all failed. I thought these tools bypass the filesystem and make a bitwise copy. dd is fooled, it finishes but just produces a small file and states it's finished. ...
5
votes
2answers
2k views

Does LVM increase the risk of data loss?

Let's say I have two identical disks, and I set one LVM logical volume on them (no mirroring). Question: What will happen when one of the disks fails? I will lose all the data from all the disks I ...
3
votes
1answer
2k views

What is the fastest way to write all sectors on a drive?

The goal in my case is not to securely erase data, but simply to force sector reallocation by the drives firmware. I have a drive that has had a few file corruptions. It seems to be due to getting ...
1
vote
0answers
1k views

WD MyBook 3TB - Gparted failed & HDD partitions recovery?

I have this new WD MyBook external HDD (USB 3.0/2.0); I created 3 partitions all of them ext3 type (~1 TB | ~1 TB | ~750 GB) I loaded lots of files all the partitions were like ~30% full on each, and ...
5
votes
2answers
1k views

Overwrote Windows with Linux, how can I recover data?

While installing Ubuntu 11.10 (ext4) I accidentally chose a wrong partition and it overwrote my Windows 2003 installation (ntfs). How can I recover files? So far I tried photoRec and it recovered ...
1
vote
1answer
277 views

Raid5, what could happen? Partition corruption, now what do I do?

First, I probably deserve this for not having a backup. My system was installed with Debian and Mint11. I recently installed Mint12 to play with. I expected all three to continue to work. I can no ...
1
vote
1answer
478 views

Create recovery medium from Windows 7 recovery partition

Many laptops are delivered with Windows 7 recovery partition (but without CD or DVD) which takes place on the harddrive that could contain some Linux distribution or serve for data storage. I don't ...
14
votes
2answers
1k views

.bashrc overwritten but still sourced — how can it be recovered?

Usually when I find a command I want to alias, I echo it to my .bashrc like so: [up button pressed to last command, then line edited so that it reads] $echo "command-i-just-did" >> ~/.bashrc ...
4
votes
1answer
4k views

Recovering NTFS drive with safecopy

Several days ago, I dropped my USB external hard disk. As a result, I cannot read some of the files. I would like to recover it, and now I am using safecopy. I used the following command, sudo ...
1
vote
1answer
322 views

is it possible to recover a raid 5 array by using usb enclosures?

I had a RAID 5 (Linux software RAID) server which recently decided not to boot anymore. It seems to be a motherboard problem possibly due to not being protected by a UPS during a power failure. It ...
4
votes
1answer
12k views

mount: wrong fs type, bad option, bad superblock on /dev/sdb on CentOS 6.0

Somehow my partition on /dev/sdb has gotten all buggered up. This hard drive contains a lot of data that I need to recover and haven't been able to backup yet. When I attempt to mount it: # mount -t ...
2
votes
1answer
113 views

Worrisome HD related messages after power outage

Had a power outage two weeks ago on my BSD server that my UPS decided then was a good time to fail. Just fired it up this evening only to have the following errors show during what I would assume is ...
1
vote
2answers
531 views

How to undelete/restore the deleted files in ubuntu linux [duplicate]

Possible Duplicate: Recovering deleted files on fedora undelete files from local fileserver I accidentally did rm * in a directory instead of another directory from console in a Ubuntu11 ...
1
vote
1answer
89 views

Recovering Ubuntu

My Ubuntu 11.04 guest on VBox 4.0.10 crashed when I was working. Is there a way to go back to previous working configuration? I have always used the saved state and power off option. I did not take ...
8
votes
2answers
2k views

File damaged/lost during transfer? Recovery possible?

I was at uni a few days ago when I attempted to cut and paste a 500Mb file (a 3gp video recording) into my H drive on one of the uni network's Linux (Debian KDE 3.5) computers. I did not see any ...
4
votes
4answers
2k views

How to recover a file just deleted [duplicate]

I just deleted a file in Nautilus with Shift+Delete, which warned me that "If you delete an item, it will be permanently lost." I wonder if there is no way to recover the file? My OS is Ubuntu 10.10. ...
11
votes
4answers
1k views

Accidentally executed sudo rm /* on a remote server

I accidentally executed rm /* while logged in as root in a remote Ubuntu Server and deleted pretty much all binaries and currently I can neither log in via ssh or ftp to restore the files (and hope ...
3
votes
2answers
1k views

How to recover saved (stored) emails after damage to KMail configuration?

Recently my computer had to be hard-reset, and fsck ran on /home filesystem, producing lots of errors (old HDD drive). After reset I don't see all my saved emails in KMail (KDE 3.5.3), at least those ...
3
votes
4answers
3k views

Recover files from corrupt DVD

I have a DVD+RW containing a lot of images and videos. Multiple DVD drives fail to read or mount it. I tried to follow this to try and recover the files using DVDisaster, and have created an iso file. ...
3
votes
4answers
5k views

How to recover a corrupted “tar.gz” file

I suddenly needed to recover an old tar.gz file, but as soon as I execute so: tar -zxvf filename.tar.gz I get this: gzip: stdin: invalid compressed data--format violated tar: Child returned ...
3
votes
2answers
987 views

Recover formatted ext3 partition

Suppose you have an ext3 partition which was unfortunately formated as ext4 partition (and where now are some but not a lot new files on it). Is there any way to recover (some) files from the old ext3 ...
2
votes
2answers
3k views

Use testdisk and gpart information to mount ext4 partition

I am trying to recover the ext4 partition table of a 2TB disk, where I have 900.000 files. I have cloned the original HD and now I am working on the cloned HD. And I am running Parted Magic Live CD. ...
2
votes
3answers
968 views

Shift+delete vs rm -rf

Are Shift+Delete and rm -rf different? Is it possible to recover deleted data after performing either of them?
4
votes
2answers
805 views

undelete files from local fileserver

I have a NAS (mybook world white light) in my living room where all my music and stuff is stored. I've mounted the music folder of the nas in the local music folder of my home directory on my desktop ...
4
votes
2answers
975 views

How to recover my directory structure and files from a messed-up partition

Something strange (don't ask) happened on my external hard-drive, resulting in (important) data being unreachable... I am failing to mount it. That data was sitting on a vfat filesystem. I can get ...