Software :: Recovering Data From A Hard Drive With LVM A Partition?
Jan 18, 2010
I have an external USB hard drive that I need to recover some data from, but I see from fdisk -l that the partition uses LVM:
Code:
[root@localhost ~]# fdisk -l /dev/sdd
Disk /dev/sdd: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[code]....
I've followed various lvm tutorials all of which describe setting up lvm from fresh on empty disks. Unfortunately non mention how to 'install' new a drive that was previously set up with lvm. I have had a go anyway and may have now lost my data. Here's what I've ended up with (the partition in question is sdd1):
Code:
[root@localhost ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sdd1
VG Name vg02
[code]....
I've tried mounting with other fstypes, but all give the same error.
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Jul 4, 2010
I have recently gotten hold of a device that helps me plug my old ATA/IDE hard drive to my computer and view my old files that I wish to recover. I am using Ubuntu and the harddrive that I wish to retrieve the data from also has an Ubuntu install on it. The files I wish to recover are old .doc files, which I want to keep to remember my old writings.
The problem I have encountered arises when I wish to open some of the files. The icon for some of the files, which happen to be my best writings, has an X on the top right, indicating that I cannot view the contents. When I click on the files, the following error message pops up: "Access to /media/c885571b-a6e5-4a2d-937a-78af7050910/george/Courses/hist388/Passion.doc was denied."
Now, I am guessing that I need to be able to log in as superuser or something to be able to access these files, so I logged in my terminal as super user by following the instructions outlined on this page: [url]
I still did not have the sufficient access required to be able to open the files that I would like to retrieve.
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Apr 25, 2010
I am trying to transfer files from a SATA hard drive with Windows Vista (Home Premium) installed on it. Some files I can easily copy over, others just say Access Denied.
I'm sure permissions is part of the issue, unofrtunately Windows is unable to boot at all (surpise surprise) so I can't adjust anything from within in. I know with XP drives I can easily copy and paste onto my Ubuntu machine. I'm using a SATA to USB converter that let's me plug it in and my desktop reads it like an external hard drive.
I've gone into the properties and under permissions it shows my account as having access to Create and delete files under folder access amd "---" under File access. My group and others show None and --- for Folder and File access. I can post a link to a screenshot tomorrow. I've tried to also select Read and Write for File access but it goes back to the dashes before I can apply it.
I am running 64 bit Ubuntu 9.10 and do not have the sharing aspect installed. Any questions please feel free to ask me.
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Oct 4, 2010
OK, was trying to make a live-usb boot partition on my 1.5TB HD; in doing so clicked a 'wipe disk' button.
A second later I realised what I'd done, clicked cancel (frantically), tried to unmount the drive but was told 'volume busy'. In a panic, unplugged the drive. Unsurprisingly, the drive is now a mess.
I'd had 1 30G FAT32 partition (empty) at sdd1, 1 1.5TB ext4 partition with about 500G of data at sdd2. Now according to gparted I have an unrecognised filesystem type; according to the 'Disk Utility' I have an unmountable 1.5TB FAT32 drive.
I know NOTHING about data recovery. If it's just a case of running a couple of magic 'check & fix' programs then I should be OK, but anything else and I'll have to take it to more skilled friends.
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Apr 6, 2011
I was trying to fix some hardware on my laptop and i ended up mucking the whole thing up. The HDD seems to fine though. I have it in a external HDD enclosure and it's plugged into my mothers desktop through usb.I'm trying to print some files I have, but my home directory on the external HDD is encrypted.
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Jul 16, 2010
I learned a couple of days ago why you should do regular backups. Left my laptop working for the day in hot weather. When I came back it had crashed. On reboot it no longer booted up. I could still access the BIOS and boot from alternative media but not from the hard drive. The laptop tried to access the hard disk for a couple of minutes (hard drive light was blinking) and then failed. I made an ubuntu live usb stick and am currently working from there, trying to access my hard drive so I could image my data on another disk before sending the laptop for repairs. All my data is on that disk including my passwords and the password for this site conveniently so I had to register a new account to post this thread.
The laptop is IBM Thinkpad X41. The hard drive is accessed during when boot options are presented, again when the live cd boots up and determines the hardware available and also when manually probing for hard disks using the script below. The hard disk however does not show up in dev. If I could get so far to get it there, I could use dd_rescue to image it away. My hope lies in that the drive still spins up and is accessed producing error messages, however indicating that the system still knows it exists. Excerpt from dmesg concerning the drive:
[Code].....
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Oct 8, 2010
I'd like the final layout to have a Windows partition (will start out as XP and will become Win7 when I can afford yet another copy), a partition for Ubuntu, and a shared Data partition that I can use for all my files between both OSs. I think this should be fairly straight forward with Linux on a Primary partition with / and swap. Only thing is, from what I've read (and yes I know this is a bit old school) it might be a good idea to put in a /Home partition so that I can reinstall new upgrades and maintain settings. But I don't want to max out my 4 primary partitions so I can use a 4th partition as a kind of sandbox for OS testing without using VirtualBox all the time.
This leaves me in need of some advice, I've never used Fdisk and I was planning on just using the Ubuntu installer to do all of this, but I don't know if I can create /Home as a logical partition in the main Ubuntu partition and still have the benefit of being able to reformat /root without losing /Home. I might have just confused myself, because no matter how many guides and How Tos I read I still don't really get extended partitions, I understand logical vs. primary but extended is...confusing. I need the Ubuntu partition to be bootable, so it needs to be a primary partition...I think. Unless I can have: /boot, /, swap, and /Home...
Also, if Ubuntu can read NTFS, and Win7 can read Ext3, what should a do with /Data? Or should I just go with FAT32 and be done with it. (It's a big HDD btw, 640 GB, so /Data will be fairly large)
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Jan 15, 2011
I am in the process of recovering data from some damaged hard drives.
I am copying the data to a recovery folder on the safe system disk where it is being sorted.
Some of the data/files I do not want to keep.
I want to delete them.
However the permissions are such that it will not let me.
I need to be root.
I don't really want to flaff about in the 1980's geek terminal environment ... just want to right click and select delete.
Is there any way within the GUI to be as one with Root, all powerful, all seeing ......
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May 16, 2010
I was trying to delete a logical drive in windows xp and the damn disk management tool in windows not only deleted my other windows partition but also my linux /data ext3 partition. Now I have a unallocated space in place of these partitions. The data is still there but the entries in the partition table have been removed. So how do I recover my partition. I was trying to use the following tutorial. [URK]
I used the sudo parted /dev/sda -- and then rescue START END command and could get back the /data partition. But it gives me the following error while mounting the partition. mount: wrong fs type, bad option, bad superblock on /dev/sda7, missing codepage or helper program or other error. In some cases useful info is found in syslog - try dmesg | tail or so.
What does this mean. How to I fix this? Also when I try to recover my windows partition using parted it scans for a while and then does nothing. It doesnot ask for writing the lost partition in the partition table. What do I do?
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Dec 19, 2010
I just installed kubuntu 10.10, replacing an older installation. I have three hard drives one of which had all of the data I wanted to save, about 500gb. I repartitioned and formatted the other two drives and made sure that the data drive would be mounted but not formatted. When I booted into my new installation, the data drive was blank. I'm not sure if it's relevant, but I had just upgraded the file system from ext2 to ext4 before starting the installation.
I've been trying to recover my lost partition with testdisk. The website has instructions for recovering a formatted partition. It looks like it's working until the instructions tell me to choose Boot and RebuildBS, which I don't see as options. Can anyone give me any advice on how to recover? How did this even happen? Has anyone had a similar issue with installation?
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Jul 20, 2011
I recently suffered a hard disk failure, meaning I had to replace the faulty device. After attempting to mount the old faulty hard drive using and external caddy, I got the following message... Unable to mount 144 GB Filesystem Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sdb5, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so
I'd like to attempt to recover what I can from my /home directory but unfortunately I use encryption (although I do actually know my pass phrase). What procedures and software can I use to try and recover data from this drive?
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Dec 3, 2009
The following quote is the sad, sad story of a thumb drive with the partition table nuked, as told by a friend of mine:
Quote:
Data was recovered from an XP system by booting with a BartPC CD and copying onto a USB thumb drive. Nothing unusual.
System was rebooted into the XP install CD.
The first drive that was found was the 16gb thumb drive (AKA flash drive) and the person (re) installing XP didn't catch the fact that XP presented the 16gb thumb drive instead of the 160gb hard drive.
The drive partition function in XP deleted the partition table - on the thumb drive.
A freeware utility in Windows shows the data but can't recover the file names, so that everything is gobbledygook. Does anybody know of a utility or program under Linux that can help? I have a laptop running F 12 and can do the work if needed, but don't know what program to use.
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Jan 8, 2011
I've accidently begun installing Ubuntu Studio onto my OpenSUSE drive I stupidly forgot to to swap my hard drive cables around.
Luckily, the Ubuntu Studio install failed before I noticed the problem, but I need to access the SUSE drive to pull some date off of it. Whats the best way of doing this?
I used a program in windows XP to try and pull the data (mainly holiday snaps) off the drive, but it only works on NTFS file systems, so didn't get me what I need.
How can I access the data on the linux partitions? I'm fairly certain I was using 11.2, which after a bit of googling seems touse the EXT3 file format. Correct?
I'm in over my head here really, as you can probably tell, but what my limited knowledge leads me to believe is that the Ubuntu installer overwrote my partition table (is that right?) but left all the data there still.
Ideally I need a program very similar to the one that I used, but which works for the SUSE filesystem, and runs under XP (my only working OS at the moment)
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May 27, 2010
A friend of mine somehow managed to accidentally format her USB key the other day. It had all the photos of her daughter on it and she's more than a little upset about it.
I've told her not to fret too much just yet and that I'll have a look to see if there's any way to recover any of the data (specifically the photo's, she's not overly fussed about the rest)
I've had a look through the web, and foremost looks like it's the most promising option but I don't want to start messing around with it until I've asked my fellow ubuntu users for advice and thoughts.
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Mar 24, 2011
let me know is there any package available in ubuntu for recovering data from the usb drive
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Feb 25, 2010
I have recently recovered from an HDD failure on my Drobo. One of the disks died and corrupted the entire array (which is not supposed to happen). I have since managed to copy the data off onto smaller disks and after replacing the failed drive, have copied everything back.
Now that im up and running again, i was wondering how this situation would play out on encrypted disks, or in the case of a drobo a large encrypted partition (as you cannot encrypt the entire array).
Would i still be able to recover the data if i were to encrypt it? It is a 4.2TB array, and i assume that I would need to copy the data in its entirety to recover it, so using multiple smaller disks would be out of the question right?
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Feb 21, 2011
following problem. A friend phoned me in despair. Her Ubuntu didn't start any more - ASUS-Laptop switched on stops at a ramfs-prompt.
I started Puppy-Linux from DVD-Drive. Worked fine. But puppy can't mount her /dev/sda1 partition either. At least you can see that the partition is still there. Fsck stops with an error. May be the initial problem is a sort of bad hardware by which bad bytes were written to the hard drive. Hard drive and/or memory could be replaced but not the data.
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Mar 4, 2010
I have a Hard Drive that has a corrupted file system and i have tried the usual MS Windows fixes, chkdsk and a number of recovery tools inc Dos recovery tools and failed.
The Drive is an MS Windows drive with an NTFS file system.
chkdsk scans and after several hours fixing numerous problems eventually gives up and fails to complete.
The directory "My Documents" contains several GB of data and displays that this is true. When trying to access the directory, access is denied because its corrupt. Using Windows and Dos recovery tools i can view the contents of the directory sometimes! but cannot copy out any of the data, the applications return messages saying no can do basically.
I would like to try to use Linux to recover the data.
Problem number one is i have never tried to add a hard drive to an existing Linux system before, how do i go about adding a new drive?
The 2nd problem is, is there a Linux application that i can use to attempt to repair and recover the corrupt data on this drive or more specifically in the "My Documents" directory.
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Jan 23, 2011
I wanted to format my Flash USB drive !! and by mistake i choose my external Hard Drive (NTFS) and formated the drive gain to NTFS later when i released that this is not the USB flash drive it was too late to abort or do anything
is there any way to recover my lost data ?! i mean i know about the tools like Recuva ! But the problems that it recover data mixed up in each other
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Feb 20, 2011
I'm trying to fix my girlfriend's computer which is running OS X, which will boot but doesn't work beyond the login screen. I've removed the hard drive and can access most of the files, but she encrypted her home directory with "Filevault" and I think her home directory automatically mounts from some image somewhere. She does remember her password, but I'm not really sure where the encrypted files are on the hard drive and I'm not sure how to unencrypt them.I was thinking of trying to boot the external hard drive in some kind of virtual machine, but I don't know how to do that either.
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Jan 16, 2010
I'm on the latest Ubuntu OS on my netbook trying to make a USB Startup Disk. I have a 1GB USB and a 500GB hard drive plugged in to then netbook. I run the USB Startup Disk program, and it tells me I need to format the USB drive. Okay, so I press format, only to realize that I'm formatting the 500GB hard drive.However, when I pressed format it give me an error saying the disk could not be mounted. I did something on Disk Utility and now I have a FAT32 system on the hard drive with nothing in it. Now my ultimate question is, am I able to recover the data that was on the hard drive?The hard drive was formatted in HFS+, it was a Mac-formatted hard drive. Will I need to use a Mac in order to try to restore my files?
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Jan 10, 2010
I have an external 3.5" USB 250Gb HDD which is showing symptoms of hardware problems (repeated /var/log/messages errors of "reset high speed USB device using ehci_hcd"). This was originally plugged in to my NSLU2 running Debian Etch. I have just installed Ubuntu Desktop 9.10 to a spare Pentium-3M laptop and was hoping to copy the contents of this HDD to a fresh drive. However, I cannot mount it even read-only; mount -o ro /dev/sde3 /mnt/disk fails, and the /var/log/messages error is "recovery required on readonly filesystem", "write access unavailable, cannot proceed". I cannot understand why mounting a disk read-only should require write access. Following advice I googled elsewhere, I tried running mke2fs -n /dev/sde3 to try to list the alternative superblocks - but once again I got the error that the device was read-only. How can I go about accessing the data on this disk?
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Mar 16, 2010
My parents bought a new hard drive for a laptop that I've owned for several years. It's much larger than the current one, so I plan on splitting it up to dual boot it with Ubuntu.I have no problem with partitioning a drive (I always keep a LiveCD handy), but my question is this: how can I go about moving the existing partition to the new drive? This is a laptop, so I can't simply plug the new drive into another slot.
Also, even if I manage to move it, will Windows still work on the new drive in a larger partition? I've had this laptop for quite a while, and I've lost the recovery discs that came with it a long time ago. I also have a lot of software without CDs to reinstall them with. This makes not reinstalling Windows a high priority.
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Mar 23, 2010
I am trying to move a whole bunch of files from one partition on one hard drive to the same partition on another hard drive. Can I mount the same partition (same name, different drives, i.e. /data on /dev/hda1 and /data on /dev/hdb1)and copy those files? Shutdown the server, take out /dev/hda1 and boot up with the new drive and it's /data contents.
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Jul 8, 2010
My pen drive and hard drive are corrupted. When I use them on windows, I get an message saying "the disk needs to be formatted:". I have tried every way of recovering data on windows but have been unsuccessful.
If anyone knows of a powerful software or procedure for recovering data from a corrupted drive.
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Jun 3, 2010
Ubuntu 9.10 64bit. Acer Laptop
Using ubuntu 9.10 cd to access laptops hard drive.
foun readme file in /media/disk/mark
opened with openoffice. THIS DIRECTORY HAS BEEN UNMOUNTED TO PROTECT YOUR DATA.
From the graphical desktop, click on: "Access Your Private Data"
or
From the command line, run: $ ecryptfs-mount-private
So I tried a couple of ways...
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Jun 22, 2011
I installed Redhat Enterprise 3 on one of my servers. In my haste I didn't properly partition both Hard Drives and only properly partitioned one of them. Thus now I have
/dev/sdb1 478711768 137858256 316536328 31% /
/dev/sda1 101089 15346 80524 17% /boot
Where /dev/sda1 is actually a 80 GB hard drive. Is there anyway I can safely and easily repartition the unpartitioned space without causing a huge mess? I have a very important Oracle database on /dev/sdb1 and thus I want to be able to back it up on the second disk. I can create a partition on that drive?
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Sep 27, 2010
I have the strangest issue where my HDD reports full, but I can only account for about a tenth of the data.
Specs:
Ubuntu 10.4
laptop Toshiba Tecra A11
HDD 250GB
4Gb RAM
/home 20.3GB
/usr 2.4GB
/var 742MB
/lib 132.9MB
/opt 71.3 MB
/boot 15.4MB
/etc 14.2MB
sbin 7.4MB
bin 6.4MB
The rest are below a MB. This system is not a dual boot so 241Gb is ext4 and 8.9Gb is Extended and 8.9GB is Swap. This system has been loaded for about a month, when I initially loaded it there was 230GB free.
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Jul 28, 2011
So, I recently acquired a second hard drive (1.5 TB) and I wish to partition Ubuntu 11.04 with Windows 7. I've set everything up properly and using the Disk Utility in my System Settings I've created a 1 TB partition which I want to use for Linux. I think it has the proper partition type but how do I exactly go about transferring all my files from the hard drive I'm using now to the partition I would like to have?
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Oct 3, 2009
Im using rhl 5 on my new hard drive,i want to transfer data from my older hardrive (which has windows xp installed,one partition has fat32 and another has ntfs filesystem) to the new hardrive...
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