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  • Hard Disk:S.M.A.R.T. Stas BAD, Back up and replace

    - by Nick
    I have an laptop top hard drive I was trying to use to my new media computer. The case is small and can accommodate for 2 2.5" drives, no 3.5" drives. I had been using the hard drive as storage hard drive until now. When I go to install Windows on the hard drive first I'm prompted at the bios of: Hard Disk:S.M.A.R.T. Stas BAD, Back up and replace. And then again in the Windows Setup, informing me that the hard drive is bad. So I did a full format of the drive and tried again. Same error. So I took it out and hooked it back up to my other computer via an Sata usb adapter kit (maybe the cause?). The hard drive is recognized fine and when I scanned it for errors by going: right click -> properties -> tools -> error checking It returns that the hard drive is fine. I have tried 3 different SATA cables and multiple jumpers. When I plugged in my 1.5 tb 3.5" drive the computer that gives me the S.M.A.R.T. error on the 2.5" drive, recognizes it with no problems. Any ideas on why this is happening and how I can fix it?

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  • Why my hard disk can't boot from the BIOS?

    - by Mario
    I installed a new sata DVD burner. When I turned on the machine (windows 7) it didn't boot. It can boot from a lubuntu CD. There is an option on lubuntu to boot form the first hard disk. If I select it, the machine boots normally to windows 7. So from the CD I can boot but not from the BIOS. I checked all the options more than once: boot from HD, not boot from removable, boot from USB, boot from optical. The order of the boot sequence is HD then DVD. I tried booting only with the HD; I disconnected both DVDs. I even tried recovery of the MBR: bootsect, bootrec, fixmbr, buildbcd, nt60, etc. So, the question is, does this have a reason, what's the difference between booting from the BIOS (as I think) to from the DVD?. The BIOS is intel, it has BIOS codes on the right bottom corner, it stays at 5A for a while. 5A is "Resetting PATA/SATA bus and all devices".

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  • copying an lvm partition to a smaller disk, and renaming volume groups.

    - by dlamblin
    I was trying to shrink a vmdk (VMWare disk image) file to be as small as possible, and found two recommendations. The first is to cat /dev/zero into the fs then delete it, and run VMWare tools' shrink. This works okay. The second is to copy everything into a new vmdk. I went the second route. I did not use dd because I actaully want to use as few blocks as possible, instead of having a block-by-clok copy. Any unlinked files will still have blocks that aren't zeroed out. Secondly the centos image was mostly lvm, except for the boot partition, and my target was going to be 4gb instead of 8gb. I did use dd for the first 40mb to get the boot blocks and partition copied. I then used parted to create an identical primary boot, and smaller primary lvm. Then I used pvcreate on that device sdb2, vgcreate, and lvcreate to create a root and swap. I used mkfs.ext3fs on the root partition and then rsync -av / /2root excluding /proc /sys /2root /dev. So far everything went fine. My problem is that: The result is 2.7 GB while the source was 2.1 GB. This is weird to me. The second vgroup is called VolGroup01, while the original was called VolGroup00. How can I rename the VolGroup01 to VolGroup00 and swap it out after all this?

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  • Why do my backup fail when I target a network share hosted by a Synology DS211 disk station?

    - by Larry
    My backups are failing when I try to use a network share hosted by a Synology DS211 disk station. They work fine if I target a different network share (i.e. \server1\data\larry). When I run the following command: Wbadmin start backup -backupTarget:\\diskstation\backup-larry -include:C: This is what I get: wbadmin 1.0 - Backup command-line tool (C) Copyright 2004 Microsoft Corp. Note: The backed up data cannot be securely protected at this destination. Backups stored on a remote shared folder might be accessible by other people on the network. You should only save your backups to a location where you trust the other users who have access to the location or on a network that has additional security precautions in place. Retrieving volume information... This will back up volume WIN7(C:) to \\diskstation\backup-larry. Do you want to start the backup operation? [Y] Yes [N] No y Note: The list of volumes included for backup does not include all the volumes that contain operating system components. This backup cannot be used to perform a system recovery. However, you can recover other items if the destination media type supports it. The backup operation to \\diskstation\backup-larry is starting. Creating a shadow copy of the volumes specified for backup... Creating a shadow copy of the volumes specified for backup... The backup operation stopped before completing. Summary of the backup operation: ------------------ The backup operation stopped before completing. Detailed error: Access is denied. Windows Backup failed to write the file: '<backup location>\WindowsImageBackup\<Computer Name>\MediaId'. Access is denied. The backup creates the following path \\diskstation\backup-larry\WindowsImageBackup\LARRY-MYDOMAIN\ but its empty. I definitely have read/write access on the target directory (\diskstation\backup-larry). I have verified this by looking at the permission and by actually copying files to this location. Any suggestions?

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  • How would I force Debian to use the physical sector size on a hard disk?

    - by Confused User
    I just purchased a few new 3TB WD drives. These have physical 4k sectors, but there is some sort of layer which is providing 512B logical sectors (see the partition table below). In order to attempt to get some more speed out of my hard drives, I would like to get rid of this logical layer and actually use the physical 4k sectors. However, I can't figure out how to do this (or even if it's possible) from the man pages of fdisk and parted, or from searching Google. Does anybody know how this could be done? As to why this is relevant, this page demonstrates that meerly aligning the sectors properly can already make up to a 25% speed difference for reads, and more than 2500% for writes in some cases! Getting rid of the logical sectors in favor of the physicals ones should improve speeds even more. Thanks! $ parted /dev/sdc GNU Parted 2.3 Using /dev/sdc Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) print Model: ATA WDC WD30EZRX-00M (scsi) Disk /dev/sdc: 3001GB Sector size (logical/physical): 512B/4096B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 3001GB 3001GB zfs 9 3001GB 3001GB 8389kB P.S. I don't care about the data on the drives, I was just playing with different file systems. Also, this is my first time posting here, so please let me know if my posts should be formatted differently, etc.

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  • All of the NTFS hard links disappear, where are hardlinks stored on disk and how to recover them?

    - by Osiris
    This is Windows 7 x64 sp1 on a NTFS file system. All hardlinks within C:\Windows\System32 folder disappear, and the Windows can't boot, because even the osloader, C:\Windows\System32\boot\Winload.exe also disappeared. Nevertheless, the original files are still located in the corresponding C:\Windows\winsxs folders. After booting into the Recovery Environment, and copied one Winload.exe (x64) from other folder, Windows gave an error pointing out that "ntoskrnl.exe is corrupted or missing...its file digital signature cannot be verified" In trying to boot in Safe Mode, the message above was shown after a screen prompting "Loaded \Windows\system32\config\system" Because at this early booting stage, smss.exe was still not loaded, so there is not any dumping and logs. Based on my study, ntoskrnl.exe depends on the following files: C:\\windows\\system32\\PSHED.DLL C:\\Windows\\System32\\hal.dll C:\\Windows\\System32\\kdcom.dll C:\\Windows\\System32\\clfs.sys C:\\Windows\\System32\\ci.dll All those files above are copied from their corresponding folders and verified their md5 with a well-operating Windows 7 x64 SP1. But the booting error is still the same: "ntoskrnl.exe is corrupted or missing..." **Background:** Before the reboot, there was an windows update going on. Then something unknown happen, almost all processes were broken to run, including the windows task manager, taskmgr.exe. After mount the hard disk to other computer, it seems that all hardlinks within C:\Windows\System32 folder were gone. I tried several data recovery software, but they are not be able to find those disappeared NTFS hard links. So the question is: Where are information about those hard links stored? And how to recover them? Are they depend on some windows service or stored in the registry?

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  • How can I access user files on a disk moved from a Windows 7 machine to an XP machine?

    - by Fantius
    I moved the hard drive from one machine (Win 7) to another (XP) and now certain folders tell me "Access denied". I am logged in as an administrator. I had a different account on the other machine. Neither account authenticated to anything besides the local machine. The old machine is apparently dead, so I can't do anything in there like change permissions, etc. How can I access these files? Edit: After changing the ownerships of all the files and folders on the drive, I am getting a different error. And it is troubling me deeply. "xxx refers to a location that is unavailable. It could be on a hard drive on this computer, or on a network. Check to make sure that the disk is properly inserted, or that you are connected to the Internet or your network, and then try again. If it still cannot be located, the information might have been moved to a different location." No change after rebooting. Any ideas? Surely the files are still there, right?

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  • Why does lighttpd keep static files in cache, even when modified on disk ?

    - by Pixelastic
    I am using lighttpd to serve static files. I have a bunch of images in a dir that I regularly update. This will change the file content (and filesize) as well as the modification date, but not their filename. When I access the files through http, the updates are not taken into account and lighty serves the old file. I can manually rename the file to something different, then lighttpd will return a 404 error, and if I rename my file back, I will get the correct updated version. Seems like lightty is using some kind of cache mechanism of its own (which is fine) to return static files. Unfortunatly, it seems that this mechanism doesn't update itself when files are modified. I checked through Wireshark, and my browser is really doing a request to the file, this is not a browser caching issue. It returns a 200 OK when requesting it from an empty cache, and a 304 Not Modified otherwise, as expected. But the file is returned with a wrong Last-Modified header that do not reflect the real last modification date. Maybe there is some config directive that I am not aware of ? I would like the files returned by lighty to reflect the changes made on disk directly, or at least being able to invalidate its cache.

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  • How do I prevent lighttpd from caching static files, even when modified on disk?

    - by Pixelastic
    I am using lighttpd to serve static files. I have a bunch of images in a dir that I regularly update. This will change the file content (and filesize) as well as the modification date, but not their filename. When I access the files through http, the updates are not taken into account and lighty serves the old file. I can manually rename the file to something different, then lighttpd will return a 404 error, and if I rename my file back, I will get the correct updated version. Seems like lightty is using some kind of cache mechanism of its own (which is fine) to return static files. Unfortunatly, it seems that this mechanism doesn't update itself when files are modified. I checked through Wireshark, and my browser is really doing a request to the file, this is not a browser caching issue. It returns a 200 OK when requesting it from an empty cache, and a 304 Not Modified otherwise, as expected. But the file is returned with a wrong Last-Modified header that do not reflect the real last modification date. Maybe there is some config directive that I am not aware of ? I would like the files returned by lighty to reflect the changes made on disk directly, or at least being able to invalidate its cache.

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  • How is dynamic memory allocation handled when extreme reliability is required?

    - by sharptooth
    Looks like dynamic memory allocation without garbage collection is a way to disaster. Dangling pointers there, memory leaks here. Very easy to plant an error that is sometimes hard to find and that has severe consequences. How are these problems addressed when mission-critical programs are written? I mean if I write a program that controls a spaceship like Voyager 1 that has to run for years and leave a smallest leak that leak can accumulate and halt the program sooner or later and when that happens it translates into epic fail. How is dynamic memory allocation handled when a program needs to be extremely reliable?

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  • Can a PL/pgSQL function contain a dynamic subquery?

    - by morpheous
    I am writing a PL/pgSQL function. The function has input parameters which specify (indirectly), which tables to read filtering information from. The function embeds business logic which allows it to select data from different tables based on the input arguments. The function dynamically builds a subquery which returns filtering data which is then used to run the main query. My questions are: Is it 'legal' to use a dynamic subquery in a PL/pgSQL function. I cant see why not - but this question is related to the next one. AFAIK, PL/pgSQL are cached or precompiled by the query engine. How does having a function that generates dynamic subqueries impact the work of the query engine?

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  • Adding a dynamic-height UITableView into a scrolling view?

    - by Greg
    Hello all – I'm getting into iPhone development and have hit my first confusing UI point. Here's the situation: My app is tab-based, and the view that I'm confused about has a static featured content image at the top, then a dynamic list below into which X headlines are loaded. My goal is to have the height of the headline table grow as elements are added to it, and then to have the whole view scroll (both featured image on top and headline list below). So, I guess my question comes in two parts: 1) First, how do you set up a dynamic-height table view that will grow as cells are added to it. So far I've only been able to have my tables handle their own scrolling. 2) Then, what is the root NIB view that the featured image and the table should live in to enabled scrolling? I've dropped oversized content into a UIScrollView now, although did seem to have any success with having it automatically scroll. Thanks in advance for any help on this subject!

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  • How to implement dynamic changing password for this scenario?

    - by Mike108
    What is the Best practice of dynamic changing password for this scenario? The scenario is: There are three web apps using ASP.NET. App1 checks the passwords of app2/app3 to authenticate the identity, and if app2/app3 is authenticated then app1 is allowed to receive information from App2 and App3. And app1 has to change the passwords of app2/app3 every two hour for security reason. Is it possible that there is a way to implement this scenario without app1 saving the passwords of app2/app3 for security reason? Or is there any best practice for dynamic changing password scenario?

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  • How to Add a Dynamic Layer to an Esri Map Control Programatically in WPF?

    - by Scott
    Just as the question asks. I have an Esri map control and want to add a Rastor image to the control in WPF and don't know how to do it. I see that I can add layers to the Map control, but is there a way to add a Raster image to a map control? I did find this code to turn the raster image into a Dynamic layer, but Im still lost on how to add a dynamic layer to the control it self. http://resources.esri.com/arcgisserver/apis/silverlight/index.cfm?fa=codeGalleryDetails&scriptID=16723 Thank you!

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  • What are the other new features of C# 4.0, after dynamic and optional parameters?

    - by Abel
    So, C# 4.0 came out yesterday. It introduced the much-debated dynamic keyword, named and optional parameters. Smaller improvements were the implicit ref and recognizing of indexed and default properties on COM methods, contra- and co-variance (really a .NET CLR feature, not C# only) and... Is that really it? Are dynamic and optional/named params the only real improvements to C#? Or did I miss something? Not that I'm complaining, but it seems a bit meager after C# 2.0 (generics) and C# 3.0 (lambda, LINQ). Maybe the language just reached actual maturity?

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  • [dynamic] Different behaviours between .NET 4.0 beta 2 and last release of .NET 4.0 !

    - by yogi4ever
    Hi. I've identified a difference of DLR between .NET 4.0 Beta 2 and the last release of .NET 4.0. In .NET 4.0 Beta 2, this code perfectly works at runtime : var dateTimeList = new List(); dynamic myDynamicObject = dateTimeList; object value = DateTime.Now; myDynamicObject.Add(value); Now, with last release of .NET 4.0, I have an exception at run time (to solve myDynamicObject.Add(value);) :-( In my real code, 'myDynamicObject' is a dynamic (but I know that it is always an ObservableCollection where T can be anything). 'value' is an instance which was got by some reflexions. As 'value' can have any type, the type of 'value' is Object. Do you see how can I solve this new limitation of .NET 4.0 ? Thanks

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  • Updating resources in SharpDX - why can I not map a dynamic texture?

    - by sebf
    I am trying to map a Texture2D resource in DirectX11 via SharpDX. The resource is declared as a ShaderResource, with Default usage and the 'Write' CPU flag specified. My call however fails with a generic exception from SharpDX: _Parent.Context.MapSubresource(_Resource, 0, SharpDX.Direct3D11.MapMode.Write, SharpDX.Direct3D11.MapFlags.None, out stream); I see from this question that it is supported. The MSDN docs and this other question hint that instead of using Context.MapSubresource() I should be using Texture2D.Map(), however, the DirectX11 Texture2D class does not define Map() (though it does for the DX10 equivalent). If I call the above with MapMode.WriteDiscard, the call succeeds but in this case the previous content of the texture is lost, which is no good when I only want to update a section of it. Has the Map() method been removed in DirectX11 or am I looking in the wrong place? Is the MapSubresource() method unsuitable or am I using it wrong?

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  • VMWare-Mount not recognizing virtual disks

    - by user36175
    I have two disks as .vmdk files, and four as .vdi files. I can boot virtual machines on them with Sun xMV VirtualBox, and they work just fine. However, I want to mount them on my local computer so I can read some files off of them without starting a virtual machine. I downloaded the vmware-mount utility, but I get this error, even when mounting .vmdk files, which should be VMWare images... Unable to mount the virtual disk. The disk may be in use by a virtual machine, may not have enough volumes or mounted under another drive letter. If not, verify that the file is a valid virtual disk file. Thinking it's a problem with the utility, I downloaded the SDK and made my own simple program in C to try to mount a disk. It just initializes the API, connects to it, then attempts to open the disk. I get this error, once again claiming it is not a virtual disk: **LOG: DISKLIB-DSCPTR: descriptor above max size: I64u **LOG: DISKLIB-LINK : "f:\programming\VMs\windowstrash.vdi" : failed to open (The file specified is not a virtual disk). **LOG: DISKLIB-CHAIN : "f:\programming\VMs\windowstrash.vdi" : failed to open (The file specified is not a virtual disk). **LOG: DISKLIB-LIB : Failed to open 'f:\programming\VMs\windowstrash.vdi' with flags 0x1e (The file specified is not a virtual disk). ** FAILURE ** : The file specified is not a virtual disk The files are clearly virtual disks, though, since I can actually mount and use them with a virtual machine. I tried detaching them from any VMs and trying again, but I got the same results. Any ideas? Maybe the "descriptor above max size" is a hint? Some more info: the .vmdk disks were created on other computers. I just copied them to mine and created new VMs around them, but they work fine. All the .vdi files were created on my machine. Not sure if that affects anything. Update: WinMount can mount the file.. so the problem seems to be with vmware-mount.

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  • How to repair an external harddrive?

    - by dodohjk
    I would like to reformat my hard disk, and if possible recover the (somewhat unimportant) contents if possible. I have a Western Digital 1TB hard drive which had a NTFS partition. I unplugged the drive without safely removing it first. At first a pop up was asking me to use a Windows OS to run the chkdsk /f command, however, in the effort to keep using a Linux OS I used the ntfsfix command on the ubuntu terminal Now, when I try to access the hard drive, it doesn't show up anymore in Nautilus. I tried reformatting it using Disk Utility, but it gives me an error message, and Gparted would hang on the "Scanning devices" step infinitely. Please comment any output that you would like to see and I will add it to my question. EDIT disk utility tells me is on /dev/sdb the command sudo fdisk -l gives dodohjk@DodosPC:~$ sudo fdisk -l [sudo] password for dodohjk: Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0006fa8c Device Boot Start End Blocks Id System /dev/sda1 * 4094 482344959 241170433 5 Extended /dev/sda2 482344960 488396799 3025920 82 Linux swap / Solaris /dev/sda5 4096 31461127 15728516 83 Linux /dev/sda6 31463424 52434943 10485760 83 Linux /dev/sda7 52436992 62923320 5243164+ 83 Linux /dev/sda8 62924800 482344959 209710080 83 Linux Disk /dev/sdb: 1000.2 GB, 1000202043392 bytes 255 heads, 63 sectors/track, 121600 cylinders, total 1953519616 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x6e697373 This doesn't look like a partition table Probably you selected the wrong device. Device Boot Start End Blocks Id System /dev/sdb1 ? 1936269394 3772285809 918008208 4f QNX4.x 3rd part /dev/sdb2 ? 1917848077 2462285169 272218546+ 73 Unknown /dev/sdb3 ? 1818575915 2362751050 272087568 2b Unknown /dev/sdb4 ? 2844524554 2844579527 27487 61 SpeedStor Partition table entries are not in disk order I wrote something wrong here, however here the output of fsck /dev/sbd is dodohjk@DodosPC:~$ sudo fsck /dev/sdb fsck from util-linux 2.20.1 e2fsck 1.42.5 (29-Jul-2012) ext2fs_open2: Bad magic number in super-block fsck.ext2: Superblock invalid, trying backup blocks... fsck.ext2: Bad magic number in super-block while trying to open /dev/sdb The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device&gt;

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  • SAS Expanders vs Direct Attached (SAS)?

    - by jemmille
    I have a storage unit with 2 backplanes. One backplane holds 24 disks, one backplane holds 12 disks. Each backplane is independently connected to a SFF-8087 port (4 channel/12Gbit) to the raid card. Here is where my question really comes in. Can or how easily can a backplane be overloaded? All the disks in the machine are WD RE4 WD1003FBYX (black) drives that have average writes at 115MB/sec and average read of 125 MB/sec I know things would vary based on the raid or filesystem we put on top of that but it seems to be that a 24 disk backplane with only one SFF-8087 connector should be able to overload the bus to a point that might actually slow it down? Based on my math, if I had a RAID0 across all 24 disks and asked for a large file, I should, in theory should get 24*115 MB/sec wich translates to 22.08 GBit/sec of total throughput. Either I'm confused or this backplane is horribly designed, at least in a perfomance environment. I'm looking at switching to a model where each drive has it's own channel from the backplane (and new HBA's or raid card). EDIT: more details We have used both pure linux (centos), open solaris, software raid, hardware raid, EXT3/4, ZFS. Here are some examples using bonnie++ 4 Disk RAID-0, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 194MB/s 19% 92MB/s 11% 200MB/s 8% 310/sec 194MB/s 19% 93MB/s 11% 201MB/s 8% 312/sec --------- ---- --------- ---- --------- ---- --------- 389MB/s 19% 186MB/s 11% 402MB/s 8% 311/sec 8 Disk RAID-0, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 324MB/s 32% 164MB/s 19% 346MB/s 13% 466/sec 324MB/s 32% 164MB/s 19% 348MB/s 14% 465/sec --------- ---- --------- ---- --------- ---- --------- 648MB/s 32% 328MB/s 19% 694MB/s 13% 465/sec 12 Disk RAID-0, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 377MB/s 38% 191MB/s 22% 429MB/s 17% 537/sec 376MB/s 38% 191MB/s 22% 427MB/s 17% 546/sec --------- ---- --------- ---- --------- ---- --------- 753MB/s 38% 382MB/s 22% 857MB/s 17% 541/sec Now 16 Disk RAID-0, it's gets interesting WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 359MB/s 34% 186MB/s 22% 407MB/s 18% 1397/sec 358MB/s 33% 186MB/s 22% 407MB/s 18% 1340/sec --------- ---- --------- ---- --------- ---- --------- 717MB/s 33% 373MB/s 22% 814MB/s 18% 1368/sec 20 Disk RAID-0, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 371MB/s 37% 188MB/s 22% 450MB/s 19% 775/sec 370MB/s 37% 188MB/s 22% 447MB/s 19% 797/sec --------- ---- --------- ---- --------- ---- --------- 741MB/s 37% 376MB/s 22% 898MB/s 19% 786/sec 24 Disk RAID-1, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 347MB/s 34% 193MB/s 22% 447MB/s 19% 907/sec 347MB/s 34% 192MB/s 23% 446MB/s 19% 933/sec --------- ---- --------- ---- --------- ---- --------- 694MB/s 34% 386MB/s 22% 894MB/s 19% 920/sec 28 Disk RAID-0, ZFS 32 Disk RAID-0, ZFS 36 Disk RAID-0, ZFS More details: Here is the exact unit: http://www.supermicro.com/products/chassis/4U/847/SC847E1-R1400U.cfm

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  • howto plan RAID for ESX

    - by maruti
    eight 300GB SAS drives are available. Can ESX be put on one disk as RAID-0 and others as RAID-5 ? so that in the event of disk failure data (VMs) are safe. if os disk RAID-0 fails could that be installed on replacement disk and still be able to keep VMs running? if not RAID-1 for OS is only option for OS disk? please suggest any other RAID options.

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  • Impossible to create/format install window 7 on unpartioned HD

    - by fra pet
    Hi guys i am getting nut reinstalling windows 7 on one of those Acer aspire all-in-one... The original OS(windows professional x64) was not starting, after the initial screen the bios was prompted. So step 1: i tried to access the system partition and reinstall everything but could not get at the point step 2: i set the bios to native ide and i tried to insert my original copy of windows professional and do a clean installation, but it does not allow me to format/create other partion form the installation mask step 3: my BAD, i tried to install ubuntu and i clean the whole hard drive, i was getting an error at some point during installation so i decided to get back to windows step 4: Windows 7 again, at the disk screen of the windows installation i entered into the prompt and played around with DISKPART... -i listed the disk and the HD was disk 0. -i selected disk 0. -i CLEAN disk 0 successfully. -i tried to create a CREATE PARTITION PRIMARY but gave an error cache corrupt and disk not up-to-date (after i try to create a partiton in disk 0 it disappear when i try LIST DISK and i have to restart before he can list DISK 0 again, RESCAN did not worked). -tried CLEAN ALL(2 hours) and succeeded. -try again to create primary partition and failed, same errors -try to install my old copy of windows xP pro and it seems to work, it create a partition, format(only quick worked, slow mode was at 0% after 1 hour so i stop), it start installing and around 90% installation said it could not copy a file and he stop -back on windows 7 again, it says that the hard drive has 490+gb unpartitioned but won't create a partition and format. -i tried again DISKPART as i though i messed up with the MBR when i installed ubuntu, so i did all of the instruction below http://www.sevenforums.com/tutorials/20864-mbr-restore-windows-7-master-boot-record.html http://support.microsoft.com/kb/927392 the errors were: on bootsect: the systne partiton was not found, Data error cyclic redundancy check on bootrec /FixMbr: A device attached to the system is not functioning but did not worked, and still can not partiton/format/install on a blank HD i tried some bootable clean disk tool and start infinite loop on the same errors the bios setting are: sata: native ide. if i put AHCL(or something like that does not load the HD and the DVD). quick start/quite start: disabled. Are there any other option or tools i can try before i try change the HD(That is my last option)? Thanks to everyone.

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