Question about NexxTech Computers & Internet

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Using nexxtech 2.5

I had a motherboard crash in my notebook. I bought a new notebook computer, loaded Fedora 9 linux (as my previous notebook had), then bought a NexxTech 2.5" PATA hard drive enclosure to connect my old hd to my new computer. I cannot get linux to recognize the drive, however. I cannot figure out what I may have done wrong, oir what software I may be missing. Can anyone give me some guidance?

Old System: Dell Inspiron 5150, with Seagate 2.5" internal hd (one month old)

New system: HP Pavilion dv9910us, with NexxTech2 portable drive enclosure

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  • jfalter0 Aug 27, 2008

    Some further info: After plugging in the drive to the USB port, I ran

    cat /var/log/messages | grep sdb

    I had this result:

    Aug 27 08:19:14 localhost kernel: sd 7:0:0:0: [sdb] 312581808 512-byte hardware sectors (160042 MB)
    Aug 27 08:19:14 localhost kernel: sd 7:0:0:0: [sdb] Write Protect is off
    Aug 27 08:19:14 localhost kernel: sd 7:0:0:0: [sdb] Assuming drive cache: write through
    Aug 27 08:19:14 localhost kernel: sd 7:0:0:0: [sdb] 312581808 512-byte hardware sectors (160042 MB)
    Aug 27 08:19:14 localhost kernel: sd 7:0:0:0: [sdb] Write Protect is off
    Aug 27 08:19:14 localhost kernel: sd 7:0:0:0: [sdb] Assuming drive cache: write through


    Next I looked at what devices I have attached:

    ls -l /dev/sd*

    brw-rw---- 1 root disk 8, 0 2008-08-26 21:58 /dev/sda
    brw-rw---- 1 root disk 8, 1 2008-08-26 21:58 /dev/sda1
    brw-rw---- 1 root disk 8, 2 2008-08-26 21:58 /dev/sda2
    brw-rw---- 1 root disk 8, 3 2008-08-26 21:58 /dev/sda3
    brw-rw---- 1 root disk 8, 4 2008-08-26 21:58 /dev/sda4
    brw-rw---- 1 root disk 8, 5 2008-08-26 21:58 /dev/sda5
    brw-rw---- 1 root disk 8, 16 2008-08-27 08:22 /dev/sdb

    However, nothing mounts in Nautilus, nor are the individual partitions (I think there are five) of /dev/sdb recognized.

    I would love some help figuring this out. I have backups of my data from about a month ago, but all my recent work is on that hard drive. (I know: backup, backup, backup.)

    Peace!
    Jeff


  • jfalter0 Aug 27, 2008

    It doesn't work with Windows either. I get notification that a USB Mass Storage Device has been found, eventually that a disk drive has been added, but that's it. It doesn't show up in My Computer or anything.



    I realized after my original posting that my old system was password-protected. When I started my system, I had to enter a pasword before I could acces the hard drive or anything else. Could that have prevented me from reading my hard drive on another system?



  • jfalter0 Aug 27, 2008

    I tried reinstalling the OS, but no change. The first time the drive was not connected, the second time it was. I cannot tell any difference.

    I installed the disk in another computer. It wants a password. I tried using the password I used to start the system, but it doesn't work.

  • jfalter0 Aug 27, 2008

    I have connected it as a USB drive, now as an internal hd in a friend's laptop. Connected as an internal hd, the system wants a hdd password.

  • jfalter0 Aug 27, 2008

    The drive has five partitions, I think:

    1: NTFS (Windows XP)
    2: boot partition (/boot)
    3: swap drive
    4: extended partition
    5: ext3 file system (/)

  • jfalter0 Aug 27, 2008

    The drive says I can put a jumper on it as a slave or no jumper as a master. The NexxTech instructions say to set is as a master for the enclosure. I have it set that way in my friend's laptop as well. Should I set it as a slave?

  • jfalter0 Aug 27, 2008

    This doesn't quite describe my situation.

    I know the password I had for the system. I did not have a separate one for the hard drive. However, the system one seemed to lock the hard drive. And I cannot use the system one to unlock it.

  • jfalter0 Aug 27, 2008

    Some clarifications:

    Originally, Fedora was installed an internal Seagate hd. When the computer crashed, I removed that internal 2.5" Seagate hd and installed it in a NexxTech 2.5" hard disk enclosure. Then I connected this combo to a new laptop running Fedora via a USB cable (first connected to two USB ports, then to one). The computer didn't recognize the drive. So I removed it from the enclosure, borrowed a friend's laptop, and installed the Seagate internally in place of my friend's hd. Now the friend's laptop is asking me for a HDD password. The password I used to access the original system, until the time of the crash, is not working to mount this drive.

  • jfalter0 Aug 27, 2008

    Okay, I followed the link to read about the lack of a partition table. Following its suggestion, I entered

    [root]# /sbin/fdisk -l

    Disk /dev/sda: 250.0 GB, 250059350016 bytes
    255 heads, 63 sectors/track, 30401 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x13f913f8

    Device Boot Start End Blocks Id System
    /dev/sda1 * 1 6375 51200000 7 HPFS/NTFS
    /dev/sda2 28860 30401 12386115 7 HPFS/NTFS
    /dev/sda3 6376 6400 200812+ 83 Linux
    /dev/sda4 6401 28859 180401917+ 5 Extended
    /dev/sda5 6401 28859 180401886 8e Linux LVM

    Partition table entries are not in disk order

    Disk /dev/dm-0: 182.6 GB, 182603218944 bytes
    255 heads, 63 sectors/track, 22200 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x00000000

    Disk /dev/dm-0 doesn't contain a valid partition table

    Disk /dev/dm-1: 2080 MB, 2080374784 bytes
    255 heads, 63 sectors/track, 252 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x30307800

    Disk /dev/dm-1 doesn't contain a valid partition table

    Disk /dev/sdb: 120.0 GB, 120034123776 bytes
    255 heads, 63 sectors/track, 14593 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x13cdbb3e

    Device Boot Start End Blocks Id System
    /dev/sdb1 * 1 3824 30716248+ 83 Linux
    /dev/sdb2 3825 14593 86501992+ 83 Linux



    I am not sure what /dev/dm-1 is, but /dev/dm-0 seems to be the drive in question. I then ran fdisk on this drive:


    [root]# /sbin/fdisk /dev/dm-0
    Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
    Building a new DOS disklabel with disk identifier 0xe73cf5fb.
    Changes will remain in memory only, until you decide to write them.
    After that, of course, the previous content won't be recoverable.


    The number of cylinders for this disk is set to 22200.
    There is nothing wrong with that, but this is larger than 1024,
    and could in certain setups cause problems with:
    1) software that runs at boot time (e.g., old versions of LILO)
    2) booting and partitioning software from other OSs
    (e.g., DOS FDISK, OS/2 FDISK)
    Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

    Command (m for help): q



    So, it does indeed seem that a partition table is lacking, though I don't think this should be the case, unless it was somehow corrupted when the motherboard crashed. If the partition table was corrupted/destroyed, is there a good way to recover it without losing the data?

  • jfalter0 Aug 27, 2008

    Thanks for the reference on the device names. I knew most of that information, but it was helpful to learn about the /proc/partitions file.

  • jfalter0 Aug 27, 2008

    I tried it in two different systems--internally on one (WinXP), as an external USB on both (WinXP, Fedora). On neither does it work.

  • jfalter0 Aug 27, 2008

    The drive that is now USB (/dev/dm-0) had five partitions before the system crash:

    1: NTFS (Windows XP)
    2: boot partition (/boot)
    3: swap drive
    4: extended partition
    5: ext3 file system (/)

    From the fdisk info (I just recently posted it), it seems that the partition table has either been corrupted or destroyed. I am hoping that if so, there is some good way to rebuild the partition table without losing the data.

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Every thing is proper in your software .and what you connected is also the proper way as to be done.but still i will suggest calling the technician at your place is much better.as this will save your time.and he will be having all the missing software cd which your pc demands.and if something goes wrong the the whole mother board will be corrupted.and will be counted as scrap.because all the minute connections in it are very sensitive.and connecting all your sofware will not be too costly will be just is service charge.and that is exceptable.because he is giving that service.

pls do rate the solution

thanks.
regards.
fixya expert team

Posted on Aug 27, 2008

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That hard drive may not be compatible with the new computer..the parameters may be wrong and wont allow it to use or trasnfer data from it onto the new computer.trying to interchange drives depends on compatibility issues and it sounds as though the one you are trying to use is simply not compatible to the new system

Posted on Aug 27, 2008

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Linux device naming.
This topic provides information to help you understand naming patterns for devices on Linux.

Posted on Aug 27, 2008

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Disk /dev/md0 doesn't contain a valid partition table
See link may helps

Posted on Aug 27, 2008

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Dear Sir/madam,

Some laptops provide autility to lock a hard disk with a password. These passwords are notthe same as BIOS passwords. Moving a locked hard disk to anothermachine will not unlock it, since the hard disk password is stored inthe hard disk firmware and moves with the hard disk. Also, adding a new(unlocked) hard disk to a locked machine may cause the new hard disk tobecome locked. Also, note that hard disk lock passwords cannot beremoved by reformatting the disk, fdisk or any other software procedure(since the disk will not allow and reads or writes to the disk, itcannot be reformatted.) Usually, the BIOS password and hard disk lockpasswords are set the same by a user and we can recover the BIOSpassword directly from the laptop security chip (after it is removedfrom the system board.) However, it is possible that the BIOS passwordand hard disk lock passwords may be set different. In this case theBIOS password will not unlock the hard disk. You can test to determineif your hard disk is locked by attempting to access it in another laptop.

For more information click this link

http://www.pwcrack.com/harddisk.shtml

thanks
good luck

Posted on Aug 27, 2008

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Please set the hard disk jumper to save mode and then connect it the Usb case , then check the status light blinking or constant on the hard disk case...

Posted on Aug 27, 2008

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The drive needs to be partitioned and if it already has been, windows doesn't support linux partitions so its not visible in windows until repartitioned

Posted on Aug 27, 2008

  • Ekse Aug 27, 2008

    Im talking about the usb drive of yours?

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If it's a usb? you may try with other ports. or may follow other's comments also

Posted on Aug 27, 2008

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Reinstall ur linux os again...i think it may cause due to mistake caused during installation...linux should be always taken care to install in the syste,m...else it wont run pro...else install tat in different drive and see///

Posted on Aug 27, 2008

  • mohammed marika thambi
    mohammed marika thambi Aug 27, 2008



    I've gotten it to work with FC1 using a similar process to that
    outlined. The important thing is to work out what modules your usb
    drivers need. With FC1 I added



    usbcore

    usb-storage

    usb-hci

    ehci-hcd



    in that order to the front of the linuxrc script in the initrd image.
    Order is important! Doesn't work for instance if you load usbcore up
    last as the others depend on it.



    However with just the usb modules it still failed as it wasn't getting
    enough time to actually find the usb hard drive. So I added the sleep
    function as well and it all worked fine. The fdisk wasn't necessary.

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Try checking this link for some solution that you can try about this USB detection probem http://forums.fedoraforum.org/showthread.php?t=19896

Hope that helps........

Posted on Aug 27, 2008

  • Mark Gil
    Mark Gil Aug 27, 2008

    Yes that will prevent you from reading the external drive because , what will happen there your system wont recognize the external hard drive connected to it, try disabling the password then reboot then check if its working now...

  • Mark Gil
    Mark Gil Aug 27, 2008

    You're saying that the hard drive was recognize on another computer when connected via USB or its not also recognize??because if its not recognize with the other computer there's a problem with the usb cable, enclosure or the hard drive itself...........

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Check on bios that pata port is enabled.
See here :
PATA Troubleshooter - Computer Hardware ...

Posted on Aug 27, 2008

  • Ginko
    Ginko Aug 27, 2008

    If the had drive is an external one, plugged to USB , then this has got nothing to do with the BIOS settings.
    If Fedora is installed on internal Hard Disk, it is supposed to recognise automatically an USB hard drive, and it generally supports all external usb har drives.
    If it does not recognise the hard drive, then downloading TWEAKUI from here.

    Run it and select hard drive, your external hard driveshould be on the list.

    It is a different matter if you are trying to install Fedora on external hard drive and it does not start, there is a different solution for that, see:

    Fedora Core Installation to an External USB Disk Drive


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Its just maybe that the device is not compatible with linux. try that to windows xp and see what happen.


CHARCOIS

Posted on Aug 27, 2008

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