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• Recover data from an ''unpartitioned'' hard drive

  - by Rafael S. Calsaverini

  I'm trying to recover data from a hdd for a friend from work. He was using it on an old win98 PC (so I guess it was a FAT 16 filesystem). When he installed the drive on a new PC his Windows XP can't recognize the filesystem and give an error message saying that the drive is unformatted. I tried to mount the hdd under linux but no partitions appear to be associated with the drive (I have only /dev/sdb associated with that drive and no /dev/sdb1 or sdb2 etc). I've found many articles on the web on how to recover partitions (with scripts like dd and ddrescue) but how do I make it when I have no partitions and the system say my drive is unpartioned? Is it possible to create a new partition without loosing the data?

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• How to diagnose very slow pagefile

  - by svick

  Quite often, one of the applications I use freezes (“does not respond”) for a while, in extreme cases for few minutes. This happens especially when when switching apps. During this time, the HDD light flashes constantly and perfmon show that HDD is used 100% of the time (OTOH, CPU isn't) and that pagefile is being read (which is to be expected when switching apps), but at a very slow rate. When I sort the disk table in perfmon by read or write, the file read and wrote the most is the pagefile, but it's still quite low rate (I don't remember the numbers). How can I diagnose what's causing this? I use Windows Vista, and the computer is quite ordinary two years old laptop.

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• Why Buy Hardrives with storage server from a vendor?

  - by Mark

  Hi all, Im just browsing around at storage server's like the Dell MD100/ MD3000 and the Sun J4200 and although the storage server seems reasonable (approx $3000-$4000 AUD) the hard-drives that you buy to go along with them seems exorbitantly expensive. And I'm not sure why. Surely at most they are using good quality RAID level 7200rpm SATA hdd, but even then they are still charging almost 4 times the price. What is the advantage to buying these from them. I can see if one fails then the vendor replacing it is convenient. But at that price you could buy double the amount of hdd and just claim on warranty directly with the manufacturer. It would be much cheaper and you wouldn't be relying on someone else to fix your problems. Is this the case of "you don't get fired if you buy IBM?" mentality or is there some reason I'm not grasping here? Cheers Mark

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• MS-DOSdivide overflow

  - by repozitor

  when i want to install my dear application on MS-DOS os, i see error "Divide Overflow" what is the meaning of this error and how to fix it? the procedure of installing is: 1-partitioing my HDD disk 2-format C drive 3-installing MS-DOS 4-add the flowing lines to config.sys "DEVICE=C:\DOS\HIMEM.SYS DEVICE=C:\DOS\EMM386.EXE RAM DEVICE=C:\DOS\RAMDRIVE.SYS 6000 512 64 /e" 5-insert my floppy application and then restart 6-when boot process completed, all of the thing appear correctly and i now how to do the next steps note:for installing my application i need to boot from floppy app when i have ms-dos on my hdd disk i do it successfully on the Virtual machine, Q emulator but i can't do it on the real machine, Vectra HP PC, because of divide overflow

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• Programs minimized for long time takes long time to "wake up"

  - by bart

  I'm working in Photoshop CS6 and multiple browsers a lot. I'm not using them all at once, so sometimes some applications are minimized to taskbar for hours or days. The problem is, when I try to maximize them from the taskbar - it sometimes takes longer than starting them! Especially Photoshop feels really weird for many seconds after finally showing up, it's slow, unresponsive and even sometimes totally freezes for minute or two. It's not a hardware problem as it's been like that since always on all on my PCs. Would I also notice it after upgrading my HDD to SDD and adding RAM (my main PC holds 4 GB currently)? Could guys with powerful pcs / macs tell me - does it also happen to you? I guess OSes somehow "focus" on active software and move all the resources away from the ones that run, but are not used. Is it possible to somehow set RAM / CPU / HDD priorities or something, for let's say, Photoshop, so it won't slow down after long period of inactivity?

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• Re-Initialize RAID-0 in software after card failure

  - by Ben

  I'm working on a Friend's WD MyBook "1TB" HDD that is not mounting. When I got in to it, I discovered that it is really 2 500GB HDD's set up as RAID-0. It appears that the drives themselves are fine, but that the logic board has failed. My questions is this: can I re-initialize the RAID-0 using software RAID so that I can recover the data to another drive? If so, how and which software RAID would be best (Preferably open source. any platform OK).

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• Permanently mount multiple directories from different disks under /

  - by piotrek

  I have SSD and HDD. Some directories like /var, /srv and /tmp should be on HDD, while /boot, /usr and /lib on SSD. But do I have to create separate partition for every single directory? I want to have 2 or so partitions. One for each disk and distribute directories as needed. Is it possible and how? I've heard about symlinks, mount --bind, mhddfs but: symlinks are treated differently by tools like cp, so I'm not sure if it's safe to have main system directories symlinked I have no idea how can I use mount --bind or mhddfs in fstab

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• Losing windows XP files. How to retrieve them?

  - by ravi

  I have a portable 500 GB HDD.Since last few days, all files of some folder are getting kinda corrupted.I can't access/delete them. Here is the example. If I try to access these files/folders, I get following error. This thing is kinda spreading in my HDD.Till now it has affected two folders worth 70 GB.In which one folder is backup folder where all my important data resides.So I am really in loss if I loose this data. How can I retrieve this data? Please help.

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• Will this increase my VPS failing rate ?

  - by Spencer Lim

  Will this increase my Virtual private Server failing rate if i :- install Microsoft Window Server 2008 Enterprise install SQL server enterprise 2008 install IIS 7.5 install ASP.Net Mvc 2 install Microsoft Exchange install Team foundation server on one mini VPS with specification of DELL Poweredge R710 shared plan DDR3 ECC RAMs 16GB and -- 1GB for this VPS using DELL PERC 6i raid controller (this thing alone about 1.5k-2k) and the SAS HDD (15K RPM) (146GB) -- 33GB to this VPS each hdd is freaking fast over 300MB read / write possible with proper tuning the motherboard is a DELL and it has twin redundant PSU (870watt 85%eff) its running on Intel Xeon 5502 (Quad Core) x2 so about 8 physical proc (fairly share) is there any ruler for this about one VPS can only install what what what service ? Thx for reply

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• Can't install Windows 7 on Acer Aspire M1100

  - by r0ca

  When I install Windows 7, everything goes smooth but as soon as it's done and Windows needs to reboot for the last time before getting the desktop, the computer stucks to Verify DMI Pool Data............. and then, nothing. I change the CMOS battery, I tried so many setup in BIOS, even load default settings... Nothing worked. The HDD light is not flickering anymore, no HDD activity. CTRL-ALT-DEL doesn't work. It's just impossible to load Windows 7. I tried Windows XP and this works fine. I also tried the Acer (Futureshop) recovery CD and I get an Hexademical error message stating the install cannot continue. Is there a BIOS flash apps somewhere or a fix I can apply to have Windows 7 Ultimate installed on my computer. Any takers?

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• Apple RAID configuration vs Hardware RAID

  - by James Hill

  I am researching external HDD's capable or RAID 1 to store a large amount of video content during overseas filming. After filming, the content will be brought back to the office and offloaded onto our storage server. After doing some research, I've found that I can buy an external drive with a built in RAID controller, or I can buy an external drive, with 2 HDD's, that I can configure in a RAID 1 array using the OS. RAID 1 is what we're looking for. I've done some reading on software RAID vs. hardware RAID, but the resources I've found don't discuss performance as it relates to video content or what happens to a software RAID when the computer dies. Question 1: Will the hardware RAID be more performant when dealing with large video files? Question 2: If the mac dies, does my RAID die with it (will my data be accessible on another mac)?

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• BSOD on windows 7 with SSD during boot after improper shutdown

  - by Bob

  I have a BSOD on windows 7 with SSD during boot after improper shutdown (while windows animation logo is moving). The computer restart imediatly after BSOD, and windows proposes to launch startup repair (if i do it, it takes +-5min and fixes the problem : computer starts normally). However, after any new improper shutdown, i got the same problem. Remarks: If i unplug, re-plug the SSD whyle system is shutdown, i have the same problem. If i reproduce the situation with old HDD, i havn't the problem Previously, i had a different problem: BSOD when waking up after sleep, which was fixed by installing drivers (ethernet, usb, graphic card) I have made ram chech and ssd check and found no problems Starting with safe mode after improper shutdown causes a BSOD at loading of classpnp.sys Configuration: System: HP compaq 8510p SSD: OCZ vertex-2 2.5 Boot options: SATA native mode - Enable, HDD transalation mode - LBA-assisted

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• Active Directory Problem

  - by Ankur Dholakiya

  Hello All, I have one server 2008 installed with AD, SQL and IIS. Now I am trying to attach different HDD on this server only. I am able to install windows server 2008 r2 64bit on the server, but when I try to install the ActiveDirectory on the server the setup doesn't get completed and keep processing at following level. "Configuring Active directory and local host domains ......." If I attach same HDD on any other PC Active directory setups completes successfully. My server is Xeon quad core with 8GB of RAM. Can any one help the appropriate solution for this?

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• Dell poweredge 1850's - wont install os

  - by user1326789

  I have 3 of these dell 1850 rack servers. 1 has 3GB RAM and 2 73GB HDD's. 2 have 6GB RAM and each of them has 2 73GB HDD's. I am currently trying to install an os on them but when i boot with windows xp setup, it gives me an error saying no partition found. Now i have set these drives up in RAID on the server and i put them "online" so it should be working fine but they're not. Please assist me in installing an operating system on these, i have no clue as to if it's the BIOS or the RAID controller within it. Thanks in advance, -Matt.

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• Suggestion for boot manager in external hard disk

  - by Korrupzion

  Hi, I just bought an 1TB External Hard drive with eSATA, USB, FW400/800 (LaCie if you are interested). I already put the windows 7 installation in a FAT32 active partition so i can plug the HDD via USB, since my notebook or other computers doesn't support boot via eSATA commonly, and it works. Now i want to do more partitions so i'm looking for a way to have a boot manager as active partitions that allows me to boot from different partitions in my HDD (win7, ubuntu installations for example) I want to know if you know any software to do this or you already have this system. Thanks and sorry i have too many grammar errors because english is not my native language :)

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• Blue Screen at booting Windows 2000 virtual

  - by darkdog

  well i hope this stackexchange site is the right for my issue. I've an Oracle VirtualBox running on some acer pc Settings for the Acer PC: Windows 7 SP1 64bit Intel G630 @ 2.7Ghz 2GB RAM i used a .vhd image which contains a windows 2000 system with some preconfigured stuff and software for a customer. At the Windows boot time immediately after the "Loading Windows 2000..." - Screen i get the following Error: Sorry for the German Text but it say's something like "Check the Size of your HDD. If the error contains a driver, deactivate it and try again. Or change the graficcard" The HDD Size shouldn't be a problem in my honest opinion. Can anyone give me an adivce what i can try to do? I just tested the same combination of the .vhd image and oracle virtualbox on another computer. Same issue. Greetings

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• which drive do I mount

  - by Crash893

  I have a system hdd then two raid1 hard drives I see that sda1 is the system drive but when i do a fdisk -l I get the following results so which of the following do i need to mount to get the "raid" drive and not the individual hdd? root@Mxxxx-PDC:/etc/samba# fdisk -l Disk /dev/sda: 251.0 GB, 251000193024 bytes 255 heads, 63 sectors/track, 30515 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x000762dc Device Boot Start End Blocks Id System /dev/sda1 * 1 30328 243609628+ 83 Linux /dev/sda2 30329 30515 1502077+ 5 Extended /dev/sda5 30329 30515 1502046 82 Linux swap / Solaris Disk /dev/sdb: 400.0 GB, 400088457216 bytes 255 heads, 63 sectors/track, 48641 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 48641 390708801 83 Linux Disk /dev/sdc: 250.0 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x0009f4b2 Device Boot Start End Blocks Id System /dev/sdc1 * 1 255 2048256 fd Linux raid autodetect /dev/sdc2 256 30401 242147745 fd Linux raid autodetect Disk /dev/sdd: 250.0 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x000b7f4c Device Boot Start End Blocks Id System /dev/sdd1 * 1 255 2048256 fd Linux raid autodetect /dev/sdd2 256 30401 242147745 fd Linux raid autodetect

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• Finding optimal ddrescue command line options where Accuracy > Speed

  - by gav

  I'm read up a bit about this tool and obviously looked at the man pages. The trouble is that ddrescue takes so long I need to get the command right first time. I wasn't sure how to improve on the vanilla; $ sudo ./ddrescue -v /dev/disk0s5 MyVolImage.dmg MyVolRescue.log $ sudo ./ddrescue -v MyVolImage.dmg /dev/disk1s3 MyVolRestore.log From HSF+ to HSF+ drives Source (Broken) HDD is connected via USB 2.0 Dest HDD is inside MacBook I would choose accuracy over speed There seem to be a lot of options but I'm not sure how they impact quality and speed of recovery. Thanks, Gav

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• Is it better to always purchase as much as higher in Watts SMPS, for PC?

  - by metal gear solid

  Is it better to always purchase as much as higher in Watts SMPS, for PC? Does higer watts SMPS also consume more power (electricity bill)? How to know how much watts of SMPS we should purchase? What are factor who decide how much watt of power will need? I'm going to purchase a new Motherboard + CPU + HDD + RAM + DVD Wrtiter + SATA 500 GB HDD ? I'm not purchasing any external Graphic Card. How to decide which watt of SMPS ,I should purchase?

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• Upgrading Fedora 16 to 17 with crypted LVM

  - by nijansen

  As the title suggests, I want to upgrade Fedora 16 to the Fedora 17 Alpha build, but I am struggling to do so because of my crypted HDD. To avoid the hustle of CD-ROM or USB install, I thought the preupgrade would be a good idea. It downloads the stuff, stores an image somewhere and creates an entry in my boot manager. When I choose to upgrade from the boot manager it crashes halfway through because it can not access any of the prepared files (because it's crypted) and hands me a debug console. Unfortunately, this case apparently is not covered by the Fedora troubleshooting advice, at least I was not able to find anything there. I would guess I have to mount my HDD manually, but 1) how? and 2) how do I resume the upgrade afterwards? I would really appreciate a push in the right direction.

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• scp vs netatalk, samba, and/or vsftpd with External USB drive

  - by KitsuneYMG

  I set up a ubuntu server machine to share an ext2 formatted external usb drive. When attempting to copy a single 275MB files from said device through netatalk, I get estimated download rates at around 45 min. With samba and ftp (using vsftpd) I get 1+ hours! Using scp to copy the file results in complete download within 5 minutes. Another option, ssh+cp from external device to ~ and then using netatalk to grab it from there results in a total time of arounf 7 minutes. Does anyone have a clue what is misconfigured? Assuming that nothing is, is there any fs/pseudo-fs that would use the internal hdd as an intermediate location/onion-layer for the external hdd (for reads only)? Details: AppleVolumes.default: /mnt/ext USB allow:username cnidscheme:cdb options:usedots,upriv

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• PC doesn't power up anymore

  - by Andrew

  I will tell you the story behind the problem. The computer needed to be reinstalled, it has 2 HDDs so I had to un-plug one to see which is which, to save as much data as possible. After unplugging the first one, it booted with the reinstallation CD, it wasn't the HDD I was looking for so I turned it off and unplugged the other one. After unplugging and turning on, right after booting test, the HDD was turned off, only the CPU fan was working. Turned it off with the power supply's button help, holding the power button didn't do it. And now it doesn't want to turn on anymore. I tried with another test power supply but the result is the same, doesn't want to turn on. Any idea?

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• Files turned into folders on external hard drive

  - by Kashif

  I have a networked hard drive where I like to store audio/video/software and all sorts of other files for my house. While the software files are all intact and working, many of my video and audio files have been turned into folders! Can anyone explain why this is happening, how I can prevent it, and if it is possible to revert these "folders" back into files. Thanks much! An example of what the folders are named: "Highschool Graduation.avi", "Birthday party.avi", "Somesong.mp3" The HDD is connected to a Linksys E4200 router (Firmware Version: 2.0.37). This is how the HDD is networked.

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• BSOD constantly with same ntoskrnl.exe error and disk indicator is frozen

  - by Sheep

  BSOD constantly and the disk indicator is frozen. Error do not happen immediately, usually an hour after boot up. Here is the Minidump: Bug Check Code = 0x00000124 Caused By Driver = ntoskrnl.exe Caused By Address = ntoskrnl.exe+4b094c Crash Address = ntoskrnl.exe+4b094c Seems to be hardware problem, but I checked RAM, no error. I have two HDs installed, system is on SSD, data is on HDD. Checked SSD with the properties-tools-error-checking , no error. Re-installed several times, still happens even after removed HDD. Configuration: SSD: Crucial M4-CT064M4SSD2 with Firmware 0009 Intel HM65 CPU: i7-2630QM The SSD is set correctly, SATA III 6Gb/s enabled, and everything worked perfectly for nearly a year.

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• Laptop Locking Up

  - by David

  I am having a very weird issue on a Lenovo W510 laptop. It will lock up randomly. I have had it lock up during post, during the boot-up of Linux, during login, and after the login. The following are tests that I have performed on the laptop. I ran memtest I took out the extra memory module. I swapped the HDD with another HDD that had Windows 7 on it. (It BSOD'd, and before anyone could possibly read the error line, it restarts.) I tried taking the battery out and booting with only the Power cord. The only other options I can think of the problem being are the motherboard or the PSU. If anyone has any advice, I appreciate it. If not, the HP guy will be here in a few days to fix it. I would just love to call them up and tell them that the service is no longer needed.

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