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• Dropped hard drive won't mount

  - by Dave DeLong

  I have a 2 TB HFS+-formatted external hard drive that got dropped a couple of days ago while transferring files onto a Macbook Pro. Now the drive's partitions won't mount. Disk Utility can see the drive, but doesn't recognize that it has any partitions. I've tried using Data Rescue 2 to recover files off of it, but it couldn't find anything. In addition, our local computer repair shop said they couldn't find anything on there either. I know that I could ship the drive off to someone like DriveSavers, but I was hoping for a cheaper option (since they start at about $500 for the attempt). Is there something else I could try on my own? Would TestDisk be able to help with something like this?

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• Windows7 hardlink over two different drives

  - by Sandro

  I am trying to create a hardlink on my C drive that points to a file on my D drive. I open up a terminal with Administrator privileges and try the following: C:\Users\sandro>mklink /H _vimrc D:\sandro-desktop\.vimrc The error that I get is: The system cannot move the file to a different disk drive. When I try a softlink I get the issue that for some reason changes to the link contents aren't reflected on the targeted file. Thank you!

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• How to mount a drive in Ubuntu from terminal

  - by Mirage

  hi, I want to mount a drive from terminal at start up. At start if i use ls /media then its empty but if i go to computer and then click VM drive there and after that i use ls /media then it shows VM drive . How can i mount that drive at from terminal something like mount VM or how can find the path of VM like /dev/sda or something

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• Windows 7 on laptop hard drive does not boot after installing Windows to Go on external hard drive

  - by user1687031

  Just successfully installed and ran Windows 8's Windows to Go on a USB external hard drive. However, after shutting down and removing the USB hard disk, whey I to start my laptop (with only Windows 7 installed), but it doesn't boot and trying to repair it doesn't work. It seems that Windows 8 had corrupted the partition table on the laptop's hard drive, causing Windows 7 to fail to boot. How do I fix that and avoid future problems of the same type?

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• Partitioning External Hard Drive

  - by Srin

  Is there a way to partition a External Hard drive ? I have a WD 500GB external hard drive with USB interface

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• Install Jas Mac OS X [closed]

  - by Sauron

  I am trying to install OS X on my PC (Hackintosh), using JAS Mac OS X for Intel. I have read lot of tutorials explaining how to install it on a PC with IDE hard disk, but my PC has a SATA HDD. How can I install Jas Mac OS X on a PC with a SATA hard drive? With JAS, it does not show any of my hard drives drives during the OS X install.

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• Strange behaviour of Apache with network drive

  - by AMIT

  Hii all, Am runnnig Apache web server in front of mongrel server and mapped a network drive on my system.In my application miongrel is doing file upload to network drive and apche is serving file from network . But i disconnected the network drive and what strange behaviour am getting still am able to uplaod as well as download files to and from network drive .could anyone tell me why is it so. Am on windows NT machine

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• Installing Windows XP sp3 into USB 2.0 WD 320Gb Hard Drive

  - by NetKabuki

  I have a HP laptop with support for 3 USB 2.0 ports. I also have a clean 320Gb WD USB 2.0 drive. The HP can boot from USB (Bios options). I used the install disk (XP SP3 bootable) and after a few stutters, was actually able to load up a partition on the 320Gb drive with Windows. I cannot consistently get the system to boot up off the USB drive. I am able to drop Ubuntu on that same WD drive and boot up. I can even get Grub2 on Ubuntu to recognize the Win OS. But booting the Win OS is an impossible task. What can I do differently - if anything?

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• 7-zip archive with hard links?

  - by Steven Penny

  I see that tar respects hard links $ ln clonezilla.iso test.iso $ tar cfvvJ archive.tar.xz *.iso -rw-r--r-- Steven 111149056 2012-03-25 07:34 clonezilla.iso hrw-r--r-- Steven 0 2012-03-25 07:34 test.iso link to clonezilla.iso 7-Zip does not do this $ 7z a -mx=9 archive.7z *.iso $ ls -l -rw-r--r-- 1 Steven 212827496 Apr 17 07:40 archive.7z -rw-r--r-- 1 Steven 105073772 Apr 17 07:38 archive.tar.xz Is there a way to make 7-Zip respect hard links? gnu.org/software/tar/manual/html_node/hard-links

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• RAID1 Hard drives with Intel Controller

  - by Dave_H

  I have an older server with 2 35GB hard drives arranged as a RAID-1 drive. I have 3 open bays, I'd like to add 2 more hard drives to the open bays and have all 4 drives configured as a RAID-1 drive that Windows sees as 1 larger drive. Is this possible? If not, the new drives are 2x as big as the old drives, is it possible to replace 1 of the old drives and rebuild then replace the second drive and rebuild and somehow expand the array to use all of the available space? The server is using an Intel hardware raid controller, the software interface is Intel Storage Console v2.12.

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• external hard drive is no longer recognized, gives buffer I/O errors

  - by BioGeek

  Hi all, The external hard drive which contains all my photos and where I backed-up all my important documents is no longer recognized. It is a three month old 500GB Iomage Prestige Desktop Hard Drive. When I plug it in, it is recognised as a USB device, because it shows up when I type lsusb, but dmesg gives this error message. [19712.013250] usb 2-2: new high speed USB device using ehci_hcd and address 21 [19712.145347] usb 2-2: configuration #1 chosen from 1 choice [19712.147214] scsi25 : SCSI emulation for USB Mass Storage devices [19712.147514] usb-storage: device found at 21 [19712.147519] usb-storage: waiting for device to settle before scanning [19717.148978] usb-storage: device scan complete [19717.149527] scsi 25:0:0:0: Direct-Access ST350082 0AS PQ: 0 ANSI: 2 CCS [19717.151020] sd 25:0:0:0: Attached scsi generic sg2 type 0 [19717.151685] sd 25:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB) [19717.160402] sd 25:0:0:0: [sdb] Write Protect is off [19717.160412] sd 25:0:0:0: [sdb] Mode Sense: 34 00 00 00 [19717.160418] sd 25:0:0:0: [sdb] Assuming drive cache: write through [19717.165685] sd 25:0:0:0: [sdb] Assuming drive cache: write through [19717.165691] sdb: sdb1 [19719.171808] sd 25:0:0:0: [sdb] Assuming drive cache: write through [19719.171818] sd 25:0:0:0: [sdb] Attached SCSI disk [19737.430998] sd 25:0:0:0: [sdb] Unhandled sense code [19737.431007] sd 25:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [19737.431016] sd 25:0:0:0: [sdb] Sense Key : Medium Error [current] [19737.431027] sd 25:0:0:0: [sdb] Add. Sense: Unrecovered read error [19737.431038] end_request: I/O error, dev sdb, sector 6160463 [19737.431050] Buffer I/O error on device sdb1, logical block 6160400 [19737.431060] Buffer I/O error on device sdb1, logical block 6160401 [19737.431067] Buffer I/O error on device sdb1, logical block 6160402 [19737.431075] Buffer I/O error on device sdb1, logical block 6160403 [19737.431082] Buffer I/O error on device sdb1, logical block 6160404 [19737.431088] Buffer I/O error on device sdb1, logical block 6160405 [19737.431096] Buffer I/O error on device sdb1, logical block 6160406 [19737.431102] Buffer I/O error on device sdb1, logical block 6160407 [19737.431114] Buffer I/O error on device sdb1, logical block 6160408 [19737.431121] Buffer I/O error on device sdb1, logical block 6160409 [19737.712183] sd 6:0:0:0: [sdb] Unhandled sense code [19737.712191] sd 6:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_SENSE [19737.712200] sd 6:0:0:0: [sdb] Sense Key : Hardware Error [current] [19737.712210] sd 6:0:0:0: [sdb] Add. Sense: No additional sense information [19737.712222] end_request: I/O error, dev sdb, sector 0 [19737.712232] Buffer I/O error on device sdb, logical block 0 Neither does the external drive show when I use fdisk: jeroen@phalacrocorax:~$ sudo fdisk -l [sudo] password for jeroen: Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x000341ad Device Boot Start End Blocks Id System /dev/sda1 * 1 18714 150320173+ 83 Linux /dev/sda2 18715 19457 5968147+ 5 Extended /dev/sda5 18715 19457 5968116 82 Linux swap / Solaris` I popped the disk out of the casing put it on a SATA connect internally and then tried the file recovery programs testdisk/photorec and SpinRite, but both failed because they couldn't recognize the external harddisk. Do I have any other options?

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• HDD cannot be booted from

  - by K.Wong

  I have an ASUS A52F, no mods, with Win7 preinstalled. There is one hard drive, two partitions, one for the OS (C:) and one for data (D:) After laptop trauma, i.e. I dropped it, it still worked fine. However, when chkdisk was run on the C: drive chkdisk crashed, and Windows is unbootable. Windows Startup Manager utility was run, but error code 0xc00000e9 was given. Windows help db shows that this is a BIOS problem, however in BIOS setup the drive can be accessed, and folders can be shown. I also burned a Ubuntu 12.04 distro, and booted off it, but my internal HDD is missing and cannot be accessed. When installation program is run the HDD shows up as a location to install to yet the drive is shown as blank. tl;dr: HDD damaged, chkdisk crashed. Windows 7 is unbootable. Given error code, according to Microsoft db, is a BIOS problem, yet in BIOS the drive is accessible. different OS (Ubuntu 12.04), booted off a distro, yet HDD is inaccessible. Quick help appreciated.

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• Cannot find my hard disk while installing linux-“No root file system defined” error

  - by Syam Kumar S

  I am trying install Linux on my computer (tried Ubuntu 10.4 and Linux Mint 9). I started the installation wizard and on the hard disk selection page the hard disk is not displayed. I have a 500GB disk with 5 partitions and windows 7 ultimate in one partition. If I click the forward button, it shows an error- "No root file system defined". I have tried to install by booting from CD and pendrive but both shows the same error. When I load Linux as live CD it doesn't show the hard disk. My hard disk works fine in windows 7. System config: intel i3 2100, 500GB hdd, 2GB ram

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• rsync not copying hard links

  - by A.Ellett

  I have two computers (both MacBook Airs) for which I sync one directory tree in both, but not the entire hard drive or any other directories. Let's say on computer A the directory is /Users/aellett/projects Let's say on computer B the directory is /Users/bellett/projects Generally, I'll log into computer B and then remotely connect to computer A as user 'aellett'. As super user I sync the two project directories as follows: rsync -av /Volumes/aellett/projects/ /Users/bellett/projects/ and this works as expected. On both computers I have another file letter.txt in a different directory which is not getting synced. Let's say on computer A the file is found in /Users/aellett/letters On computer B the file is found in /Users/bellett/correspondence Generally, I don't want to share what's not included in /Users/<username>/projects. But I do want to share this particular file. So on both computer I made a correspondence directory in projects. And then I made hard links as follows On computer A: ln /Users/aellett/letters/letter.txt /Users/aellett/projects/correspondence/letter.txt On computer B: ln /Users/bellett/correspondence/letter.txt /Users/aellett/projects/correspondence/letter.txt The next time I synced the two computers I did the following rsync -av -H /Volumes/aellett/projects/ /Users/bellett/projects/ When I checked on computer B, /Users/bellett/projects/correspondence/letter.txt was correctly synced. But, the hardlink to /Users/bellett/correspondence/letter.txt was no longer there. In other words, /Users/bellett/projects/correspondence/letter.txt was identical to /Users/aellett/projects/correspondence/letter.txt but it differed from /Users/bellett/correspondence/letter.txt. Since these two files were hard linked on both computers, I expected them to still have the hard link. Why are my hard links not being preserved?

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• du excluding hard links possible?

  - by balor123

  I'm trying to determine how big a cloned Git repository is from a local file system. It creates hard links for some but not all files. How can I determine the disk usage of it? The best I can come up with is "du -a" right now with the original and again with the clone to determine the difference, since each hard linked file will be counted only once. Ideally, I would just run du on the clone and count each hard linked file zero times.

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• Win7 - DVD drive spins up but fails to read, fails write

  - by MA

  Running Windows 7 x64. DVD drive is a BenQ DC DQ60 ATA dvd-dl rw. Everything functions correctly in linux, and I can boot to cd/dvds, so the drive itself does work. Symptom: when I insert any CD or DVD (burned or retail), the drive spins up the disk, and (usually) displays the disk title in My Computer, but just continues to spin indefinitely. I cannot browse the disk in the drive, install from it, or read anything.

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• What is the easiest/simplest way to change the HD on a Linux server?

  - by ArmlessJohn

  Hello. I have a machine running Ubuntu Server that has been presenting some HD-related problems. Instead of reinstalling and reconfiguring everything (and to save time) we'd like to copy everything from the current hard drive to a new one and start using it. We only have a single hard drive with a main partition and a swap partition. What tools or methods would you recommend for replacing a hard drive with minimum difficulty and chance of problems? Thank you.

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• Slow solid state drive on laptop running Linux

  - by wcyang

  I installed a solid state drive on my laptop, but I don't get the blazing speeds which people write about. My system: Laptop: Acer Aspire 7552G-6061 Solid state drive: Crucial 256GB M4 CT256M4SSD2 Operating system: Linux (Trisquel 5.5, a derivative of Ubuntu) I am using AHCI. I installed the operating system onto the solid state drive (as opposed to copying it). How can I make the solid state drive faster? Could the problem be with the block or sector alignment?

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• HP Colour LaserJet Printer Hard Drive

  - by Jon Rhoades

  We are struggling to print Student's Theses on our HP CLJ CP4025 Printers (It will only let us print 1 at a time & typically they need multiple copies). Supposedly the solution is to install the optional Hard Drive. My question is: a) Does a hard drive on the printer make a significant difference? b) Can we use any old hard drive or do we have to use the rather pricey HP High performance EIO units?

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• Linux: Best-practices for Hard Linking?

  - by Dan

  I've used hard links in the past, but they seem to make a bit of a mess of things... When is the proper time to use Hard links? What are the best practices for when and where to use hard linking? Thanks, Dan

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• SATA Backward compatibility? [closed]

  - by Fladur

  Possible Duplicate: Can I connect a SATA-II hard drive to a SATA-I connection? Hello everyone One of my system is really old, but I still use it, right now, the HDD is and old IDE drive that is starting to fail (I got to many damaged sectors) and I'm planing to replace it. The motherboard supports Serial ATA 1 and I have a real nice offer on a SATA 2 drive, can I use that drive on a SATA 1 interface (obviously with reduced speed) just like a USB 2.0 device on a 1.0 port? Thanks in advance.

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• Powershell mapped network drive doesn't persist

  - by Davidw

  I'm trying to create a script that maps a network drive whenever I connect to a VPN, then disconnects the drive when I disconnect from the VPN, using Task Scheduler to launch the script when the event is created. It launches the script, which creates the drive, but when Powershell closes, it disconnects the drive, so it only stays open for a few seconds, then closes it again. I have the persist parameter specified, but it doesn't persist. New-PSDrive -Name "N" -PSProvider FileSystem -Root \(Serverpath)\ndrive -Persist

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• Windows OS's cannot boot on new internal harddrive

  - by Kothari

  I have installed a new internal 500GB hard drive into a Dell Inspiron N4030 and it appears that the installation was entirely successful. The BIOS recognizes the drive and shows the serial number of the hard drive. The problem is that I cannot boot any Windows OS. I have tried XP, Vista, Windows 7 and Windows 8. It displays only a black screen with a blinking cursor. Fedora boots successfully. My old hard drive crashed, but would atleast boot up these OS's before it died. Any help?

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• Add Mirror for volumes other than the last one in Windows 7 (disk "not up-to-date")

  - by rakslice

  I'm using Windows 7 x64 Ultimate. I have an existing 4TB disk with 3 NTFS volumes, a new 3TB blank disk, and I'm trying to mirror the volumes onto the new disk. My Windows install is on an SSD which is Disk 0. The 4TB disk with volumes is Disk 1, and the new blank disk is Disk 2. I can add a mirror successfully for the last volume, but when I try to add a mirror for the first volume I immediately get errors (see below). Is there something I special I need to do to add a mirror for a volume other than the last one? More info: I opened Disk Management, right-clicked on the first volume on the existing disk, went to Add Mirror, and selected the new disk. The first time I did this I was prompted to convert the new disk to a Dynamic Disk, which I approved. Subsequently I got a message: The operation failed to complete because the Disk Management console view is not up-to-date. Refresh the view by using the refresh task. If the problem persists close the Disk Management console, then restart Disk Management or restart the computer. I've refreshed disk management, restarted the computer, and converted the new disk to basic and back to dynamic, but I still get that error message. Looking around for suggestions of a workaround, I saw a suggestion to use the diskpart command line tool. Running diskpart from the Start Menu as Administrator, I did select volume 2 (the first volume I want to mirror) and then add disk 2 (the new disk), and received a somewhat similar error: Virtual Disk Service error: The disk's extent information is corrupted. DiskPart has referenced an object which is not up-to-date. Refresh the object by using the RESCAN command. If the problem persists exit DiskPart, then restart DiskPart or restart the computer. A rescan appears to be successful: DISKPART> select disk 2 Disk 2 is now the selected disk. DISKPART> rescan Please wait while DiskPart scans your configuration... DiskPart has finished scanning your configuration. but attempting to add the mirror again resulted in the same error. The only similar report I found online was this: http://www.sevenforums.com/hardware-devices/335780-unable-mirror-all-but-last-partition-drive.html Based on that I attempted to mirror the last volume on the disk to the new disk using diskpart, and that started successfully -- it is currently resynchronizing. More Background: In the course of dealing with a failing 3TB hard drive, I bought a replacement 4TB drive and installed it, then copied the partitions from the failing drive to it using Minitool Partition Wizard Home, and then removed the failing drive and was up and running again normally. Now I've received a warranty replacement for the failing drive, and installed it, and now I'm attempting to mirror my partitions to it.

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• 10,000 RPM HDD (WD VelociRaptor) vs SSD for OS?

  - by GiH

  I currently have a 10,00RPM 150GB Raptor that I use for Vista. I'm about to upgrade to Windows 7, and while doing that I thought I'd buy another drive and install Ubuntu 9.10 on it. I don't want to partition the current drive I have, but I don't need 150GB for another OS. So, I'm having trouble deciding whether its worth it to buy a 64 GB SSD at the same price point as the 150GB WD VelociRaptor? Or should I just get a 7,200 RPM drive for really cheap (around $50)? Would it be better to use an SSD for the OS than a mechanical drive? I could always get a 32GB SSD too... Oh, and I don't want to virtualize Ubuntu because I'm going to be testing to see the differences in networking and overall performance.

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