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• DRBD on a disk with existing file system that takes all the place

  - by Karolis T.

  I'm currently trying to simulate the environment via XEN. I have installed two debian systems with such FS layout: cltest1:/etc# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda2 6.0G 417M 5.2G 8% / tmpfs 257M 0 257M 0% /lib/init/rw udev 10M 16K 10M 1% /dev tmpfs 257M 4.0K 257M 1% /dev/shm Host cltest2 is identical. Here's my drbd.conf global { minor-count 1; } resource mysql { protocol C; syncer { rate 10M; # 10 Megabytes } on cltest1 { device /dev/drbd0; disk /dev/xvda2; address 192.168.1.186:7789; meta-disk internal; } on cltest2 { device /dev/drbd0; disk /dev/xvda2; address 192.168.1.187:7789; meta-disk internal; } } I have not created filesystem on drbd0 Starting DRBD via init.d script errors out with: Starting DRBD resources: [ d(mysql) /dev/drbd0: Failure: (114) Lower device is already claimed. This usually means it is mounted. [mysql] cmd /sbin/drbdsetup /dev/drbd0 disk /dev/xvda2 /dev/xvda2 internal --set-defaults --create-device failed - continuing! Running: drbdadm create-md mysql gives: cltest1:/etc# drbdadm create-md mysql md_offset 6442446848 al_offset 6442414080 bm_offset 6442217472 Found ext3 filesystem which uses 6291456 kB current configuration leaves usable 6291228 kB Device size would be truncated, which would corrupt data and result in 'access beyond end of device' errors. You need to either * use external meta data (recommended) * shrink that filesystem first * zero out the device (destroy the filesystem) Operation refused. Command 'drbdmeta /dev/drbd0 v08 /dev/xvda2 internal create-md' terminated with exit code 40 drbdadm aborting As I understand, all of my problems are because I don't have unallocated disk space on xvda2. What are my options besides shrinking FS and connecting a separate physical disk? Can't the meta-data be stored on a file in the local filesystem?

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• Data recovery on a corrupted 3TB disk

  - by Mark K Cowan

  Short version I probably need software to run a deep-scan recovery (ideally on Linux) to find files on NTFS filesystem. The file data is intact, but the references are no longer present. Analogous to recovering data from a "quick-formatted" partition. Hopefully there is a smarter way available than deep-scan, one which would recover filenames and possibly paths. Long version I have a 3TB disk containing a load of backups. Windows 7 SP1 refused to detect the disk when plugged in directly via SATA, so I put it on a USB/SATA adaptor which seemed to work at first. The SATA/USB adaptor probably does not support disks over 2.2TB though. Windows first asked me if I wanted to 'format' the disk, then later showed me most of the contents but some folder were inaccessible. I stupidly decided to run a CHKDSK on my backup disk, which made the folders accessible but also left them empty. I connected this disk via SATA to my main PC (Arch Linux). I tried: testdisk ntfsundelete ntfsfix --no-action (to look for diagnostically relevant faults, disk was "OK" though) to no avail as the files references in the tables had presumably been zeroed out by CHKDSK, rather than using a typical journal'd deletion). If it is useful at all, a majority of the files that I want to recover are JPEG, Photoshop PSD, and MPEG-3/MPEG-4/AVI/MKV files. If worst comes to worst, I'll just design my own sector scanner and use some simple heuristic-driven analysis to recover raw binary blocks of data from the disk which appears to match the structures of the above file types. I am unfamiliar with the exact workings of NTFS but used to be proficient at recovering FAT32 systems with just a hex-editor, so I can provide any useful diagnostic information if you let me know how to find it! My priorities in ascending order of importance for choosing the accepted answer: Restores directory structure Recovers many filenames in addition to the file data Is free / very cheap Runs on Linux Recovers a majority of file data The last point is the most important, but the more of the higher points you match the more rep you'll probably get :)

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• VMware Fusion won't boot my Boot Camp partition

  - by Sean

  I have a Boot Camp partition on my MacBook that I would ultimately like to convert to a VMware virtual machine image. I've installed VMware Fusion and tried to start up my Boot Camp install using the Boot Camp button on the initial welcome screen. It brings up the "VMware Fusion is preparing your Boot Camp partition to run as a virtual machine" dialog, but afterward it shows an error dialog with the following message: Boot Camp partition preprocessing failed. You may not be able to boot your Boot Camp partition as a virtual machine. It then tries to boot the new VM, but it blue screens during the boot process. The info on the blue screen doesn't provide much in the way of help though. Running chkdsk has no effect. After searching around, some people recommended using VMware's stand-alone converter utility from within Windows to create an image, but the utility said it couldn't create an image because my disk uses a GUID Partition Table (GPT). I'm wondering if this is why it can't boot my BC partition from Fusion. Has anyone else run into this and found a fix?

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• What to look for in a reliable backup hard disk?

  - by Senthil

  I want to buy an internal hard disk and use a docking station along with it for backing up important data. The size will be around 500GB to 1TB. I have a budget and several models fit into it. So far, they only seem to vary in size, speed and brand. These are the only things I can compare from the specs. I guess asking for which brand is best is completely subjective so I won't do that. I want my disk to have long life and be reliable. Doesn't matter if it is somewhat slow. Size: Should I go for the one with highest size within my budget? Will higher density cause problems? Or should I go for a moderately sized one? Does the number of platters have an impact? Speed: I do not want high performance. I want it to be reliable and last long. I am definitely not going to choose the expensive 10,000 rpm ones. Should I go for 5400 or 7200? Do these numbers affect longevity and reliability? Are there any other technical and objective factors that I should look for?

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• How to change my W2k8 System Partition?

  - by Chris May

  On my Windows 2008 server, my C: is 1.5 TB, and the partition is marked as: Healthy (Boot, Page File, Active, Crash Dump, Primary Partition) and somehow I ended up with a 2GB D: that is marked as Healthy (System). On this D: drive are only a few MB worth of files (bootmgr, boot folder, bootsect.bak), but all Windows files are on the c:. I've done everything I can to remove the (System) mark. I tried using bcdedit, I tried marking the C:partition as "Active", I tried using bootsect.exe to assign the C: drive as the boot partition. Maybe I didn't do one of those steps correct, but I've tried everything I can. When I got my new Dell Poweredge T710, I didn't bother removing their 2 small drives before I put in my 2 new large drives. So I think when I installed W2k8 Server, maybe dell left some bootable partition on their drives to help me install the OS, but I never used it and just booted right from the install CD. Can anyone help me remove the (System) mark from the D: so I can remove the D: partition and still boot to the C:? I know I could remove the D: drives and reinstall windows, but I'm trying to avoid a total reinstall.

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• testdisk - recover partition table

  - by Evaggelos Balaskas

  I destroyed my partition table of my laptop. Testdisk reports the below Disk laptop.img - 250 GB / 232 GiB - CHS 30402 255 63 (RO) Partition Start End Size in sectors >P MS Data 435868 456606 20739 [NO NAME] P MS Data 19232600 19235479 2880 [NO NAME] D MS Data 41945087 83890143 41945057 D MS Data 57151486 168579069 111427584 D MS Data 67637246 141037565 73400320 D MS Data 151523326 193466365 41943040 D MS Data 170617328 170618223 896 D MS Data 170631168 170634047 2880 D MS Data 171338232 171344405 6174 [Boot] D MS Data 172008235 172231918 223684 [NO NAME] P MS Data 193466368 214437887 20971520 D MS Data 217321375 225321678 8000304 [root] D MS Data 224923646 308809725 83886080 [media] D MS Data 308809728 420237311 111427584 D MS Data 418910206 481824765 62914560 [vmimages] my partition table had 3 Primary Partitions. 1. WinXP Home 2. /boot 3. LVM inside LVM i had 9 or 10 LVM partitions One of them was my home (encrypted with luks) testdisk cant recover my partition table or any other partition. Partitions with [P] doesnt have any useful data. I want to use dd to extract the partitions and try to recover as many files i can. Any ideas of how i can extract eg. the [root] lvm partition from the above testdisk report ? I am afraid that my disk was also corrupted.

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• Backing up default windows installation with dd from linux running on another partition - is this fe

  - by Marek

  I am preparing to reinstall my system. I am thinking about creating a multi boot with a linux distro+Windows 7 to choose from when starting up. I would love to be able to skip all the hassle of reinstalling Windows and all programs when it starts becoming too slow in the future, thus I would like to mirror my fresh Windows system partition with some programs preinstalled. I am thinking about installing Ubuntu, making a partition for windows, installing windows with the basic environment (Visual Studio, Office, etc.) then booting into Linux and making an image of the windows partition with dd. I am not familiar with linux at all so I am a little afraid something may go wrong along the way. Is it possible to do it this way? Will I be able to partition my existing disk for multi boot easily after I install Ubuntu? Will I be able to recover the Windows partition easily using dd when I will need to re-create a fresh windows partition in the future? What other (better) approach can you recommend to achieve the goal of easy disk mirroring (for free)?

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• Allignment of ext3 partition on LVM RAID volume group

  - by John P

  I'm trying to add a partition on a LVM that resides on a RAID6 volume group and fdisk is complaining about the partition not residing on a physical sector boundry. My question is, how do you calculate the correct starting sector for a partition on a LVM? This partition will be formated ext3. Would it be better to just format the LVM directly instead of creating a new partition? Disk /dev/dedvol/backup: 2199.0 GB, 2199023255552 bytes 255 heads, 63 sectors/track, 267349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 1048576 bytes / 8388608 bytes Disk identifier: 0x4e428f49 Device Boot Start End Blocks Id System /dev/dedvol/backup1 63 267349 2146982827+ 83 Linux Partition 1 does not start on physical sector boundary. lvdisplay /dev/dedvol/backup --- Logical volume --- LV Name /dev/dedvol/backup VG Name dedvol LV UUID OV2n5j-7LHb-exJL-t8dI-dU8A-2vxf-uIicCt LV Write Access read/write LV Status available # open 0 LV Size 2.00 TiB Current LE 524288 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 32768 Block device 253:1 vgdisplay dedvol --- Volume group --- VG Name dedvol System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 1 Max PV 0 Cur PV 1 Act PV 1 VG Size 14.55 TiB PE Size 4.00 MiB Total PE 3815448 Alloc PE / Size 3670016 / 14.00 TiB Free PE / Size 145432 / 568.09 GiB VG UUID 8fBcOk-aXGx-P3Qy-VVpJ-0zK1-fQgy-Cb691J

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• Dell XPS 15 L502X hard drive Partition

  - by Mohan Gajula

  I have a situation here. I got my new Dell XPS 15 Laptop. The configuration of hard drive is as below : Volume 1: (OEM Partition): 133MB Volume 2: OS (C:): 685.25 GB Volume 3: Recovery : 13.25 GB Now, I am trying to re-partition my C Drive to have a C: drive with 100 GB and a new drive with 585 GB. Earlier, I tried using the Windows 7 Disk Management to shrink and extend the volume. That lead to the OS and hard drive not working. Dell Tech support tried to fix the issue, but they were not able to fix the issue online. Later a Dell Technician arrived my place, and replaced the hard drive with a new hard drive. Please help me re-partition the C: Drive with 100 GB, and new D drive with 585 GB. I don't want to lose my Recovery Partition. SOLUTION As Suggested by KCotreau below , I have done exactly. I have resized the C drive to 100 GB. And then applied the changes. Windows got restarted. On the boot screen, the partition was taking place. It took around 30 mins ( approx. ). Once after restart, I can see my C drive is 100 GB. Now opened the Easeus again. And created a new partition for the free space ( 585 GB ) this took 10 seconds to create. Here goes the screenshot after partitioning. Thanks to KCotreau. You are amazing.

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• Data recovery from corrupt Ubuntu partition/directory (question about a previous answer)

  - by JoshMaurice

  I have an Ubuntu installation that won't boot anymore. I asked my previous question about it here: http://superuser.com/questions/15916/ubuntu-chkdsk-equivalent Bolotov replied: As I see from your previous question you can boot Windows so you could use dskprobe from Windows XP Service Pack 2 Support Tools to make sure that fs type is correct ... but it's already correct fs type 7 is NTFS. Message "The type of the filesystem is RAW. CHKDSK is not available for RAW drives." means that windows can't determine fs type for some reason. As we see fs type is correct. To run Chkdsk on your Windows partition you can install Windows Recovery Console, boot in recovery console and check your disk. After checking the disk you will gain access to you c:\ubuntu\disks. I think you can mount your linux partition (which is in file) as usual loop-back device: mount -o loop [path to your linux-loopback-partition] But you should mount windows patrition first. So now I'd like to know: Within the recovery console I will be issuing the commands "chkdsk -r" and then "mount -o loop [path to windows partition]" and then "mount -o loop c:\ubuntu\disks", correct? I do have a ("corrupt and unreadable") c:\ubuntu\disks directory so that appears to be the correct path to the linux partition; do you know the path to the windows partition? would that be just "c:\"?

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• Move EFI System Partition to another drive

  - by Pincopallino

  I had a Windows 8 installation on an HDD, using UEFI as boot. The HDD has the following GPT table: DISKPART> list partition Partizione ### Tipo Dim. Offset --------------- ---------------- ------- ------- Partizione 1 Ripristino 300 Mb 1024 Kb Partizione 2 Sistema 100 Mb 301 Mb Partizione 3 Riservato 128 Mb 401 Mb Partizione 4 Primario 390 Gb 529 Mb Partizione 5 Primario 540 Gb 390 Gb (I apologize it's in Italian, but the translation is quite straightforward). I recently bought an SSD drive, connected it and installed a fresh Windows 8. Now I have a working dual boot, but the UEFI partition is on the HDD instead of the SSD. Here's the SDD partition list: Partizione ### Tipo Dim. Offset --------------- ---------------- ------- ------- Partizione 1 Riservato 128 Mb 1024 Kb Partizione 2 Primario 221 Gb 129 Mb I think that the best solution would be to have it on the SSD for two reasons: the first is performance (I guess it would be a little be faster on the SSD due to the spin up time for an HDD, but I may be wrong about that) second reason is consistency. As I plan to use only the Windows 8 installation that is located on the SSD and I'm probably going to erase the system partition on the HDD to use it as a data storage device, I think that the boot partition should be on the same drive as the OS. So the question is how do I move the EFI System Partition to the SSD?

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• Backing up a Windos 7 partition from Macbook with no OS X

  - by mattcodes

  I have a 3 year macbook with Windows 7 installed as 40gb and OS X as 40gb (80gb HD). I want to remove OS X as Im at the limit of 40gb on Windows and I have not logged on to Mac OS X since installed Win7 (dont flame me). So I want to delete OS X partition and expand my win partition to 80gb BUT I still would like to be able to regularly (once a week/month) backup my Windows 7 partition - its took a while to setup everything up right - not just docs and programs - so when the hard drive dies I want to be able to restore the partition and boot away, (the daily volatile bits I can pull down from dropbox and project from soure control). With Mac OS X I could use Winclone - and this worked flawless last time the HD failed with XP but with the absence of OS X I will need something else. Im thinking can I use a Linux Live boot CD along with an external USB hard drive. Boot from CD and then dd? the partition to the USB? What linux distro live CD should I use? I say dd as if I know what am taking about (I dont) is this the best way to backup a partition (when it will be restored to same hardware as bootable) ? What command?

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• Booting Windows from different partition than system

  - by szamil

  I have bought an SSD disk, but my laptop (Dell Precision M6300) refuse to use it as a target disk for windows (AHCPI on/off, BIOS up-to-date). I can't exchange the disk unfortunately... But fortunately, I've managed to install windows using USB disk case. The problem is, that when I put that disk as my internal drive it can't boot. (Disk read error, Three Finger Salute ... ) So I tried with Linux (openSUSE), I manage to install it as well, but when I tried to boot GRUB from internal drive I get errors again. (Should I try GRUB2?) I figured out that I can boot into that internal hard drive's openSUSE system using small USB drive with GRUB, kernel and image on it. So, I just run GRUB from USB drive, it loads necessary stuff from the USB drive and then continues from the internal drive. I want to do the same with Windows. But GRUB (rootnoverify and chainloader +1) does not boot my windows on internal drive. The question: is there any chance to copy the critical windows' boot files into the USB drive, to make it possible to boot from that USB drive, but continue booting from internal (different in general) drive? The USB drive would became a system hardware key! ;-) Disk: Plextor M5S 128GB Sata III, laptop has Sata II, but it's compatible anyway, right?

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• How to correctly partion WD "Advanced Format" drive (4k sector size) with Disk Druid?

  - by FractalizeR

  Hello. Unaligned Advanced Format drives with sector size of 4k will have degraded performance. How do I make Disk Druid to partition drives correctly?

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• Ask How-To Geek: Clone a Disk, Resize Static Windows, and Create System Function Shortcuts

  - by Jason Fitzpatrick

  This week we take a look at how to clone a hard disk for easy backup or duplication, resize stubbornly static windows, and create shortcuts for dozens of Windows functions. Once a week we dip into our reader mailbag and help readers solve their problems, sharing the useful solutions with you in the process. Read on to see our fixes for this week’s reader dilemmas. Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 ShapeShifter: What Are Dreams? [Video] This Computer Runs on Geek Power Wallpaper Bones, Clocks, and Counters; A Look at the First 35,000 Years of Computing Arctic Theme for Windows 7 Gives Your Desktop an Icy Touch Install LibreOffice via PPA and Receive Auto-Updates in Ubuntu Creative Portraits Peek Inside the Guts of Modern Electronics

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• Ubuntu 12.04 64 bit doesn't work on a win7 with check point full disk encryption

  - by Victor Rodriguez

  I installed Ubuntu 12.04 64 bit with the Wubi installer on a Windows 7 with Check Point Full Disk Encryption. The Wubi Installer runs without any trouble selecting the compatibility mode with WinXP and as Administrator. The problem is that after the installation is complete and the reboot done, when you restart the system, there's no option to start Ubuntu instead of Windows. I recently installed Ubuntu on other Win7 machines without any problem. But those laptops don't have the Check Point Full Disk Encryption. And when you restart the system you have the option to start in Ubuntu. If somebody has resolved this issue please share...!!! Regards! Víctor

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• How can one unlock a fully encrypted Ubuntu 11.10 system over SSH at boot?

  - by Jeff

  In previous versions of Ubuntu, and current versions of Debian, you can unlock a fully encrypted system (using dmcrypt and LUKS) at boot time over SSH. It was as easy as: Installing the encrypted system using the Ubuntu alternate installer disk or normal Debian installer disk and choosing to encrypt the system. After the system is installed, adding the dropbear and busybox packages. Updating the initram-fs to authorize your ssh key. At boot time, you'd just ssh to the machine, and do: echo -ne "keyphrase" > /lib/cryptsetup/passfifo The machine would then unlock and boot the encrypted system. Using the exact same steps on Ubuntu 11.10, I can ssh to the machine, but /lib/cryptsetup/passfifo doesn't exist. There appears to be no way to unlock the system over ssh. I'm not sure where to look to see if this functionality changed or if it was removed.

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• fd partitions gone from 2 discs, md happy with it and resyncs. How to recover ?

  - by d0nd

  Hey gurus, need some help badly with this one. I run a server with a 6Tb md raid5 volume built over 7*1Tb disks. I've had to shut down the server lately and when it went back up, 2 out of the 7 disks used for the raid volume had lost its conf : dmesg : [ 10.184167] sda: sda1 sda2 sda3 // System disk [ 10.202072] sdb: sdb1 [ 10.210073] sdc: sdc1 [ 10.222073] sdd: sdd1 [ 10.229330] sde: sde1 [ 10.239449] sdf: sdf1 [ 11.099896] sdg: unknown partition table [ 11.255641] sdh: unknown partition table All 7 disks have same geometry and were configured alike : dmesg : Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x1e7481a5 Device Boot Start End Blocks Id System /dev/sdb1 1 121601 976760001 fd Linux raid autodetect All 7 disks (sdb1, sdc1, sdd1, sde1, sdf1, sdg1, sdh1) were used in a md raid5 xfs volume. When booting, md, which was (obviously) out of sync kicked in and automatically started rebuilding over the 7 disks, including the two "faulty" ones; xfs tried to do some shenanigans as well: dmesg : [ 19.566941] md: md0 stopped. [ 19.817038] md: bind<sdc1> [ 19.817339] md: bind<sdd1> [ 19.817465] md: bind<sde1> [ 19.817739] md: bind<sdf1> [ 19.817917] md: bind<sdh> [ 19.818079] md: bind<sdg> [ 19.818198] md: bind<sdb1> [ 19.818248] md: md0: raid array is not clean -- starting background reconstruction [ 19.825259] raid5: device sdb1 operational as raid disk 0 [ 19.825261] raid5: device sdg operational as raid disk 6 [ 19.825262] raid5: device sdh operational as raid disk 5 [ 19.825264] raid5: device sdf1 operational as raid disk 4 [ 19.825265] raid5: device sde1 operational as raid disk 3 [ 19.825267] raid5: device sdd1 operational as raid disk 2 [ 19.825268] raid5: device sdc1 operational as raid disk 1 [ 19.825665] raid5: allocated 7334kB for md0 [ 19.825667] raid5: raid level 5 set md0 active with 7 out of 7 devices, algorithm 2 [ 19.825669] RAID5 conf printout: [ 19.825670] --- rd:7 wd:7 [ 19.825671] disk 0, o:1, dev:sdb1 [ 19.825672] disk 1, o:1, dev:sdc1 [ 19.825673] disk 2, o:1, dev:sdd1 [ 19.825675] disk 3, o:1, dev:sde1 [ 19.825676] disk 4, o:1, dev:sdf1 [ 19.825677] disk 5, o:1, dev:sdh [ 19.825679] disk 6, o:1, dev:sdg [ 19.899787] PM: Starting manual resume from disk [ 28.663228] Filesystem "md0": Disabling barriers, not supported by the underlying device [ 28.663228] XFS mounting filesystem md0 [ 28.884433] md: resync of RAID array md0 [ 28.884433] md: minimum _guaranteed_ speed: 1000 KB/sec/disk. [ 28.884433] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for resync. [ 28.884433] md: using 128k window, over a total of 976759936 blocks. [ 29.025980] Starting XFS recovery on filesystem: md0 (logdev: internal) [ 32.680486] XFS: xlog_recover_process_data: bad clientid [ 32.680495] XFS: log mount/recovery failed: error 5 [ 32.682773] XFS: log mount failed I ran fdisk and flagged sdg1 and sdh1 as fd. I tried to reassemble the array but it didnt work: no matter what was in mdadm.conf, it still uses sdg and sdh instead of sdg1 and sdh1. I checked in /dev and I see no sdg1 and and sdh1, shich explains why it wont use it. I just don't know why those partitions are gone from /dev and how to readd those... blkid : /dev/sda1: LABEL="boot" UUID="519790ae-32fe-4c15-a7f6-f1bea8139409" TYPE="ext2" /dev/sda2: TYPE="swap" /dev/sda3: LABEL="root" UUID="91390d23-ed31-4af0-917e-e599457f6155" TYPE="ext3" /dev/sdb1: UUID="2802e68a-dd11-c519-e8af-0d8f4ed72889" TYPE="mdraid" /dev/sdc1: UUID="2802e68a-dd11-c519-e8af-0d8f4ed72889" TYPE="mdraid" /dev/sdd1: UUID="2802e68a-dd11-c519-e8af-0d8f4ed72889" TYPE="mdraid" /dev/sde1: UUID="2802e68a-dd11-c519-e8af-0d8f4ed72889" TYPE="mdraid" /dev/sdf1: UUID="2802e68a-dd11-c519-e8af-0d8f4ed72889" TYPE="mdraid" /dev/sdg: UUID="2802e68a-dd11-c519-e8af-0d8f4ed72889" TYPE="mdraid" /dev/sdh: UUID="2802e68a-dd11-c519-e8af-0d8f4ed72889" TYPE="mdraid" fdisk -l : Disk /dev/sda: 40.0 GB, 40020664320 bytes 255 heads, 63 sectors/track, 4865 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x8c878c87 Device Boot Start End Blocks Id System /dev/sda1 * 1 12 96358+ 83 Linux /dev/sda2 13 134 979965 82 Linux swap / Solaris /dev/sda3 135 4865 38001757+ 83 Linux Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x1e7481a5 Device Boot Start End Blocks Id System /dev/sdb1 1 121601 976760001 fd Linux raid autodetect Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0xc9bdc1e9 Device Boot Start End Blocks Id System /dev/sdc1 1 121601 976760001 fd Linux raid autodetect Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0xcc356c30 Device Boot Start End Blocks Id System /dev/sdd1 1 121601 976760001 fd Linux raid autodetect Disk /dev/sde: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0xe87f7a3d Device Boot Start End Blocks Id System /dev/sde1 1 121601 976760001 fd Linux raid autodetect Disk /dev/sdf: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0xb17a2d22 Device Boot Start End Blocks Id System /dev/sdf1 1 121601 976760001 fd Linux raid autodetect Disk /dev/sdg: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x8f3bce61 Device Boot Start End Blocks Id System /dev/sdg1 1 121601 976760001 fd Linux raid autodetect Disk /dev/sdh: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0xa98062ce Device Boot Start End Blocks Id System /dev/sdh1 1 121601 976760001 fd Linux raid autodetect I really dont know what happened nor how to recover from this mess. Needless to say the 5TB or so worth of data sitting on those disks are very valuable to me... Any idea any one? Did anybody ever experienced a similar situation or know how to recover from it ? Can someone help me? I'm really desperate... :x

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• Change permission to mount disk at rdesktop

  - by Tal

  I have ubuntu 10.04 and have installed rdesktop 1.7. I have run these commands: sudo umount /media/Tal sudo mount -t ntfs-3g -o uid=1000,gid=1000,umask=0000 /dev/sdb1 /media/Tal rdesktop -0 -r sound:local -f -u administrator -r clipboard:PRIMARYCLIPBOARD -r disk:tal=/media/Tal myip Tal is external hard drive connecting at USB in ntfs file system. I connect to windows 7 I see the hard drive in computer and I can access to files and create new files and folders, But when I try to copy a new file to a folder he show me an error message: You need permission perform this action Your require permission from computer's administrator to make changes to this folder Tal on my computername Disk from Remote Desktop Connection. I try chmod and chown too but I read I linux forum when it ntfs is no use. Some one can help me with my problem?

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• details on USB stick boot disk creation

  - by Deborah Shadovitz

  I am looking at this: http://www.ubuntu.com/download/help/create-a-usb-stick-on-ubuntu I need to create a boot disk to test Ubuntu to make sure it will run on a PC (Compaq Mini CQ10-120LA) I was given. I can create the boot disk off of a Mac (in English) or Windows (but Windows is in Spanish and foreign to me). Questions: 1) What format do I choose for the USB stick? (I wish the instructions stated this.) 2) What is Dash? (Will I know when I run the installer?) 3) Can I do this from a Mac or Windows computer? Or only from Ubuntu?

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• Unable to mount hard disk

  - by user101522

  I am unable to mount hard disk and got this message: Unable to mount 158 GB Filesystem Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sda1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so From the terminal, I tried syslog - try: No command 'syslog' found, did you mean: Command 'dsyslog' from package 'dsyslog' (universe) Command 'syslogd' from package 'sysklogd' (universe) Command 'syslogd' from package 'inetutils-syslogd' (universe) Command 'syslogd' from package 'busybox-syslogd' (universe) syslog: command not found Also tried dmesg | tail: [ 971.390588] sd 0:0:0:0: [sda] CDB: Read(10): 28 00 12 62 30 80 00 00 40 00 [ 971.390600] end_request: I/O error, dev sda, sector 308424832 [ 971.390605] Read-error on swap-device (8:0:308424840) [ 971.390608] Read-error on swap-device (8:0:308424848) [ 971.390617] Read-error on swap-device (8:0:308424856) [ 971.390620] Read-error on swap-device (8:0:308424864) [ 971.390623] Read-error on swap-device (8:0:308424872) [ 971.390626] Read-error on swap-device (8:0:308424880) [ 971.390629] Read-error on swap-device (8:0:308424888) [ 971.390632] Read-error on swap-device (8:0:308424896) It was fine before I tried to re-install 12.04 from the live CD (which failed due to the disk problem).

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• Access secondary hard disk from Virtual Machine

  - by Frank V

  I have a fairly specific question. I had Ubuntu on my Laptop (for years). For a variety of reasons, I've had to switch to Windows but the computer has two hard drives. The main drive was reformatted and I've installed windows. The second hard drive still has the Linux system disk format (not sure on type). Obviously, windows can't access it but can I access it from a Virtual machine (VirtualBox) or will I need to load up a Live-Session to access / move the contents? Edit: If this is possible, how would one proceed to mount the disk?

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• Is there a better way to run ubuntu from usb disk

  - by Adam Butler

  I have an old laptop with a broken hard drive controller and am running the previous ubuntu from a usb. I installed this as per standard instructions by running some program that copied the live cd to the usb. This has had a few problems, it seems like it was just made for trying and not for everyday use. Ideally I would like to do a proper install to the usb disk instead of just running off the installer disk. Is there a way to do this? The main problems I have are: When adding mounts to fstab it gets overwritten on each reboot When installing updates the kernel cannot be updated

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• What is the right way to Windows 7/Ubuntu 10.10 Dual-Triple Boot Partitioning for Laptop OEM?

  - by Denja

  Hi Linux Community, I find my self struggling with the ever slow and buggy windoze OS once again. It's Time to change with the Ubuntu 10.10 64bit as a really faster Operating System. My Hard Disk laptop as a RECOVERY and HP_TOOLS partition they are both Primary. I Have the System Recovery DVD for Windows 64bit should anything happen. Here's the layout I used with windows before: * (C:) Windows 7 system partition NTFS - 284,89GB (Primary,Boot,Pagefile,Dump) * HP_TOOLS system partition FAT32 - 99MB (Primary) * (D:) RECOVERY partition NTFS - 12,90GB (Primary) * SYSTEM partition NTFS 199MB (Primary) Here's the layout I want to make based on your answers * (C:) Windows 7 system partition NTFS - 60GB (Primary) (sda1) * (D:) Windows DATA partition (user files) NTFS - 120GB(Primary)(sda2);wanna share with Linux * Linux root Ext4 - 100GB (Primary)(sda3) (Ubuntu 10.10 64bit) * Linux swap swap- RAM size, 3GB (sda4) * Linux root Ext3- 15,9GB (Extended)(sda5) (OpenSuse or Puppy) Here is my New Ubuntu 10.10 64bit layout in use now: * SYSTEM partition NTFS 199MB (Primary) (sda1) **Partition 1 does not end on cylinder boundary.(?)** * (C:) Windows 7 system partition NTFS - 90GB (Primary) (sda2) * (D:) Windows 7 RECOVERY partition NTFS - 12,90GB (Primary) (sda3) * Linux system partition EXTENDED - 195GB (Logical) * Linux root Ext4- 10GB (Extended) (sda5) * Linux home Ext3- 185GB (Extended) (sda6) I didn't know if I could wipe all previous partitions when i installed Ubuntu because of the RECOVERY partition so I just made the space for my extended partition by deleting the HP_TOOLS (Fat32). By doing this I managed to make and successfully install Ubuntu 64 but I couldn't actually make the partition for the swap or a third Linux OS. Question 1: What is the right way to Windows 7/Ubuntu 10.10 Dual-Triple Boot Partitioning for Laptop OEM?? Thank you in advance for your advises and suggestions and Happy New Year to All!!

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• Expand size of Edubuntu partition on dual boot PC

  - by trptplyr

  I wasn't allowed to update to the next release of Edubuntu recently. It gave me an error stating that I did not have enough space to run the update. How can I expand the size of the Edubuntu partition to allow me to update? I am new to Linux so I hope that I am giving you enough and correct information on my system. I am using an older Dell Inspiron 9400 laptop. My root.disk file is 16.3Gb and the system.disk file is 256Mb. I would appreciate someone to point me to documentation or give me instructions on how to do this. Thank you.

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