General :: Recovery Algorithms For GPFS(IBM) ?
Mar 21, 2010some good websites or sources from where I can get recovery algorithms for GPFS(General Paralle File Sytem)..an IBM product?
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Red Hat :: Configure GPFS Nsd Using LVM?
Mar 27, 2010I am currently working on configuring GPFS files system under RHEL4 U8. In my setup I am using the following,
1. RHEL4 U8 ES 32-bit.
2. GPFS 3.2.1.
3. Configured GPFS cluster.
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Programming :: Create Unique Multithread Algorithms For Every Particular Program?
Aug 6, 2010Since 2005 when DualCore CPUs came out, you need to create unique multithread algorithms for every particular program? Or you have patterns?
View 4 Replies View RelatedProgramming :: Use Big O - Big Omega - And Big Theta To Find Running Time Of Algorithms ?
Mar 16, 2011How to use Big O, Big Omega, and Big Theta to find running time of algorithms because it looks confusing which one of them to use..
View 3 Replies View RelatedUbuntu :: Recovery Menu (in Recovery Mode) Does Not Work?
Aug 18, 2010I've got a, as it seems to me, strange problem.I've inadvertently deleted my user from the group admin so I'm in the same situation of a lot of other users (read a lot of messages about it).My problem is that when restarted in recovery mode there is no way I can choose the 'drop to the root shell' or similar in the menu.The menu appears for a second and then I've got an empty screen. If I press a key I've been requested for a username and password that of course is not what I need.
View 2 Replies View RelatedGeneral :: Recovery Of Overwritten File?
Nov 16, 2010Is there any way to recover an overwritten linux file? I uncompresed a tar file which overwrote some of my files. I read somewhere you can umount your home directory.
View 2 Replies View RelatedGeneral :: Asking For Password In Recovery Mode
Sep 15, 2010I logged in recovery mode via grub, it shows several options: like, resume normal boot
When I enter the resume normal boot it shows something like this:
xxx login:
password:
And I entered my root password which I need for the command "sudo -i". But it shows incorrect password, why is it so?
Same thing happens with dpkg option also? Why is it so, I dont have any other passwords for my machine?
General :: Data Recovery From Formatted HDD
Feb 10, 2010While install Ubuntu on an existing xp pro I accidentally formatted my hard disk. Is there any way to get back my files it contains e books pdfs photos music files and movies. Data recovery. My Hard Disk 80GB SCSI NTFS.
View 2 Replies View RelatedGeneral :: Freeze-up During Recovery Mode?
Sep 2, 2010I am trying to run boot up in recovery mode in Lucid Lynx 10.04 on a Dell XPS M170. When it gets to [1107.134155][drm] nouveau 0000:01:00.0: GPU lockup-switching to software fbcom, it stops and freezes up and will go no further.
What does this mean and is there a fix?
General :: HDD Recovery - Cannot Access Any Data
Apr 24, 2010My laptop died. I was running FC11. I have taken my harddrive out and connected it to an usb-adaptor and mounted it on my FC11 desktop. However, when I open it all I see is grub. Palimpsest sees both the 250MB of grub and efi etc., and it also sees 120GB of LVM2. I cannot however access any of my data.
View 2 Replies View RelatedGeneral :: Disk Recovery Using Testdisk
Jun 28, 2010I was installing ubuntu and somehow formatted the D partition on my hdd. I have installed testdisk and have been running quick search and deep search. Testdisk found my partition as a NTFS (I used windows vista). When I press P to list files, testdisk gives me the following message: Cant open filesystem. Filesystem seems damaged.Is it possible to recover any data from the partition or is it lost?
View 2 Replies View RelatedGeneral :: Fedora Raid Recovery On /dev/md1?
Feb 22, 2010This is my first post on LinuxQuestions.org, so I hope I am posting this this in the right forum, and English is not my mother language, so I hope I made myself understandable. I have this small Poweredge 350 server with two 80GB IDE hard drives running Red Hat Fedora 5, with software Raid 1. Some months ago hda started to have unrecoverable I/O read errors for some blocks. I leaved it that way for some time then hdb also started having same kind of issues. I got new hard drives and replaced hdb first, but the problem is mdadm hasn't been able to recover the raid. I have three LINUX RAID partitions conforming the raid 1 between hda and hdb
/dev/md0
/dev/md1
/dev/md2
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So how can I force the raid to be recovered ignoring the hda errors, is there a way to recover this?
General :: Server Not Booting After Recovery?
Oct 30, 2010I got an online centos server and it suddenly stopped rebooting. I taught there is some issue with filesystems and I went into centos recovery mode and did filesystem cleanup so I did fsck and e2fsck .
How do I re-mount the disk in centos recovery mode so it boots up normally? I am unable to mount them normally as its giving me some diskless error or am I doing something wrong?
General :: Asus Eeepc - Password Recovery
Jul 28, 2010I take it home turns out its a eee pc asus with linux. there isnt even a cd drive on this computer, i am currently using my wife's computer trying to learn about linux, never used this OS before, I know nothing past the general windows xp user. well i start it up and there is a username and password, how do i reset this password? i read all about this GRUB and command prompts but i dunno even know how to get to command promts, and i dont know anyone smart. and i cant use a password recovery disc cause there is no cd rom.
View 9 Replies View RelatedGeneral :: Which Distro To Use For Data Recovery Workstation
Sep 22, 2010I'm building another PC that will be used as a workstation specifically for recovering data from hard drives and backing up the info and I want to install linux as the OS. Which Distro would you reccomend I use?
View 5 Replies View RelatedGeneral :: Data Recovery For Overwritten Partition
Jun 27, 2010While attempting to install FC12, Anaconda took it upon itself to overwrite the partition on my backup disk. Now I need to figure out if there's a way to get at least some of my data back. If there's a better place for this question, please let me know and I will happily move it. Using Linux since 1993, other Unixoid systems since 1986. I bought this machine back in 2004 or so. It was a pretty decent machine back then, but it's showing its age now: 370Mb of RAM, 2 hard disks with 80Gb and 120Gb (I don't think the other specs are relevant, but just let me know if I'm wrong). In a fit of insanity, I decided to install Gentoo on it. Don't get me wrong: I love certain things about Gentoo. But the constant fiddling that's required, while it can be fun at first, gets old kinda quick.
So various and sundry things have been going wrong with it here and there (CD-ROM, sound card, etc ad infinitum), and, finally, it wouldn't even load X any more (almost certainly some final Gentoo update which broke something) and I said "screw it, I'll just put Fedora on it." This is what I use at work, and plus I have a good friend who has far more patience with admin stuff than I do and Fedora is what he knows. So, last night, I pick up an FC12 CD that I have lying around and decide to finally just reinstall the whole thing. I went so far as to buy myself a Passport USB drive, 319Gb, and have been backing up up all my stuff very regularly to that drive. I go through one final cycle of backing up and verifying before I start the reinstall.
So my drive is solid, and contains everything I could possibly need (and probably quite a bit of stuff I don't). After booting into FC12, I used Palimpsest to explore the partitions on the existing hard disks. Not sure which was which, I mounted the Passport, where I have cleverly saved a copy of my fstab. Using this, I can see which of my partitions were /boot, /, /home, etc. Most of my personal data has been put into separate partitions so that I could reinstall without blowing away the data. I hope that I can do that there, but, if I can't, no matter: I have a backup. I find some bits of empty space and delete a few of the partitions and recreate them, consolidating the empty space. Still confident in my backup, of course.
So I run Anaconda. Nothing happens. Eventually, I figure out that it won't run the graphical interface because I don't have enough memory. I can use the text version, no biggie. It gets to the part about the disks. I tell it which hard disk to install itself onto. For some reason I think it's going to pop up and ask me about the existing partitions and whether I want to keep them or rewrite them (maybe that's a previous version of Anaconda? or a different installer altogether, who can remember). It does not. It babbles something at me about LVM (which I've personally never really used before), and then promptly locks up. Obviously standard Fedora on a low-RAM machine like this is doomed to failure.
I poke around on the Internet, and I eventually stumble on the Fedora "spins" and select FC13/LXDE. Hopefully this will have better luck. Reboot with the new CD, take a look at my hard disks. It has completely overwritten the old partitions, replacing them with LVM partitions. But not a big deal: I have a backup. Take a look at the Passport. Its ext2 filesys has also been replaced with an LVM partition. Proceed to beat head against wall. So, obviously what happened is, since I (foolishly) had the backup drive mounted at the time I ran Anaconda, it assumed I wanted it to take over that drive as well, and just formatted everything it could lay hands on as LVM. It certainly never asked me my opinion on the matter.
But, fine, I shouldn't have had it mounted. The question is, what do I do now? My first, panicked instinct, was to just set the partition type back to 83 (I believe LVM is 8E), which I did (using cfdisk). That might have made it worse; I dunno. But I'm pretty sure I haven't written anything else to the disk since then. I've tried testdisk (nothing useful; although it can seemingly find the underlying deleted partition, it won't actually do anything with it), and a bevvy of Windows Linux recovery programs (Stellar Phoenix, DiskInternals, Raise, and R-Linux), all of which were completely useless except for R-Linux, which scanned the disk for eight hours and was still going when I had to interrupt it (I may come back to that one, but so far it doesn't look too promising).
My primary problem is that I can't make an image of the disk because this little Passport is the biggest hard drive in the house. I would certainly feel better if I could image everything off it and then play with the image. But, of course, it doesn't matter that very little of that 319Gb was actually being used: I still need 319Gb worth of space to make an image. I ordered another (larger) Passport, which should be here Wed. Once I have that I believe I can do something like so:
Code:
dd ifs=/dev/sdX ofs=/mnt/bigpassport/smallpassport.img bs=512
Right? Then I can muck about with that image in some amount of safety.
Of course, I also have the original hard drives, which are not so large. testdisk can identify the original partitions on those too, but, again, won't actually do anything with them. If I could find something that would image just the partitions I care about, I could probably save those as well, but I don't have any other external hard drives with 120Gb of space free. Can I somehow take the info that testdisk is giving me about those original partitions and use dd to get only that part of the image? Are there other recovery tools I haven't considered? I have a Windows (Win7) laptop, a Linux laptop (FC10, I think), although its power cord is flaky so it's not too reliable, a smaller Mac, a really old Windows box (XP on it, I think), and this formerly-Linux box, which I can only boot off CD's at this point. There's nothing on this disk worth the 500 bux that professional data recovery would charge me, but it's worth a day or two of my life to try to get at least some of it back.
General :: Data Recovery From Nas Acer NS04
Apr 12, 2011I have an Nas Acer Altos EasyStore NS04 with raid level 5 (4 devices sata: Barracuda 7200 500gb)
Nas info:
Code:
And then ipstor (Falcon Software) mount several dev/VBDX for each shared folder created by web admin
After a reboot NAS was unreachable (eth0 didn't start and this is the only way to control NAS)
without disks NAS work on with default params
Suggest me to connect disks in a server and start and try to mount MD device to recover data so i download SystemRescueCd-0.4.2 and connect disks to a HP Proliant ML350 G6
System starts and systemrescuecd find ad array MD127
Code:
I tryed also to recreate array in a new device (for ex. MD128) but error messages was the same
I dont' understand if problem is in md file system or superblock or something else.
General :: Data Recovery - No Valid Directory
Nov 15, 2010I was trying to set up a partition on my netbook's hard drive, and foolishly forgot to backup my home folder. Now, Ubuntu (10.04, btw) won't boot. It allows me to get into the manual recovery shell, though. Now, I'm perfectly willing to reformat, but first I'm hoping I can recover the files from my home folder without having to take my netbook to the ridiculously overpriced computer repair centers in my area.
I have an external hard drive, but when it's plugged in during the recovery shell, it won't register as being a valid directory. I know the commands to copy or move a directory, but without my external reading as a valid directory to move my home folder to, I'm kinda stuck. Is there any other way to recover the contents of my home folder without having to go to a computer repair place? Neither of the ones in my area know much about linux at all, and I really don't want to have to pay $80+ to have someone else recover my home folder.
General :: Deleted File / Folder Recovery
Feb 19, 2011I have just accidentally deleted some files and a folder.Is there anyway I can recover them.
View 1 Replies View RelatedGeneral :: Files Recovery Swap Partition?
May 18, 2011I installed Ubuntu 10.10 on my PC. During the installation process i selected a partion on my hdd for swap , there i had some important files can i rocover it some how
View 1 Replies View RelatedGeneral :: Way To Remove 'recovery' At All And Revert Back To XP?
Mar 8, 2010I had a desktop pc running XP home, my daughter has an Acer Aspire 100 running a Linux OS which developed a problem so I attempted to create a recovery disk from the supplied DVD onto a memory stick via my desktop PC. It transpires that the recovery wasmade to my desktop pc in error and now my desktop does not boot up at all. Is there a way to remove this 'recovery' at all and revert back to XP??
View 14 Replies View RelatedGeneral :: Need To Repair Grub After Password Recovery?
Jul 20, 2011I have forget the root password of Red Hat Enterprise Linux 5. Please tell me how to recover it from the other linux account of the same version. I also want to know that after setting the new password did I have to repair the grub or grub will be as usual.
View 1 Replies View RelatedGeneral :: Recovery ( Or Reinstallation ) Of Operating System?
Apr 12, 2011The original operating system system for this laptop, an Acer Aspire One, Model No. ZG5, is not working. How do I get a copy of its original operating system to reinstall
View 1 Replies View RelatedGeneral :: Root Password Recovery - Suse 10.2.1
Sep 1, 2010Short version:
Ex employee logged into to box and changed the root password, trued to start in single user mode, but not coming right
Long version:
Tried changing the directories to /usr/bin and /sbin but didn't work either.
General :: Setting Up Backup And Recovery On RHEL5?
Feb 16, 2010I am finishing up setting up my LINUX workstation and have configured an external hard drive to use for full and incremental backups.Can someone point me in the right direction on how and what to use to do the backup that would allow me a warm to hot recovery.
View 5 Replies View RelatedGeneral :: Viewing Terminal From Recovery Menu
Mar 20, 2011I dont know if terminal is what im after, but here is my situation: This is a follow up to this thread on not some graphics issues with my linux install: [URL] I have finally managed to get a full install complete, but im still getting this screen on boot (prior to this screen i DO get the kubuntu loading screen) [URL]
So in the GRUB at start i have choosen Linux - recovery mode, to see what options that gave me, and i tried FailSafe mode, but i get an error and it just goes back to the recovery menu. My question is how do i get to the terminal style screen as its too quick for me to see the error, and i cant photograph it as its too fast. i cant see it being an issue with the graphics because of the properly displayed kubuntu loading screen beforehand
General :: Finding A Free Data Recovery Tool
Jan 25, 2010I deleted files on my linux drive that I shouldn't have. What is a good tool to use to recover these files that will:
Recover the various file types (txt, php etc)
Recover it as the original files names
TestDisk and PhotoRec almost do the trick, but the original filenames are not restored.
General :: Recovery - Reinstalling GRUB On Linux Netbook?
Apr 4, 2011I have a distribution called Easy Peasy on my netbook, it's Ubuntu-based.Today when I started it up it told me 'grub corrupt'. On subsequent start-ups it displays 'unknown filesystem.' I'm given a prompt labelled 'grub-rescue>' but I can't get any commands to work I've tried booting off a Live CD of Easy Peasy. That works fine, but I can't get to my files. I've tried using a program called photorec and it can recover files from the drive but it dumps out gigs upon gigs of unlabelled files, many of which are things like system files or web browser cache -- I only have a few dozen text files I actually need, so this is pretty unworkable.
I'm trying to reinstall grub, which I understand to be part of the booting process, but I've had no luck; any set of instructions I've followed has inevitably run into some error or a step I don't understand.How can I get at my files in an easy to recognise way (such that I can navigate the original directories and get what I want)? OR
How can I easily reinstall grub such that I can just use the system like before without having to reinstall everything and lose my files?I think my drive is sda or sda0. In grub's device.map it's called hd0.
General :: Knoppix Data Recovery Ownership Permissions?
Jun 4, 2011I use Linux but have a computer with windows I use for gaming. It died and put the hard drive into another computer and used knoppix to recover my files. I looked at the ownership of the windows files and the owner is knoppix. Now I am concerned that ownership will not work on my new Windows computer (when I finish building it, that is). Since I don't get into Windows much I have no idea what those permissions should be.
If I copy them with owner knoppix can I even access them in Windows to change the ownership to whatever Windows will accept? If I change the ownership before putting them on a CD with knoppix, can I write the CD? I will have to use the hard drive on the new windows box so will not have access to the files later (unless I also copy them to my Linux computer for safekeeping). At least I know the ownership changes to make with Linux.
General :: Recovery Deleted Folders And Files When Using Rm -rf Command?
Apr 2, 2010I need to recover some folders and some files from my CentOS 5.3 X86_64 linux machine ext3 partition after I have deteled them with rm -rf command. After I have deleted the files (*.exp extension) and folders with rm -rf command, I have written a big archive 70GB on the same partitions but in a different path. I know that in windows if I do that, there's no way I can bring back the deleted files, 'cause the OS writes the information in the same cluster and therefor I can't bring back the files. I hope you guys understand what am I saying.
what program (that knows all extensions, or dosen't read a specific extension/extensions) can I use in order to get the date back ? I have used foremost and it worked, but this programs knows only specific extensions, like exe, jpg, avi, mpeg, etc and not my *.exp extension. The foremost program worked perfectly, but it dosen't know the *.exp extension that I need, in order to get the data back that has that extension.