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Hi I am using fedora 4 on a hp laptop. My motherboard burned out.. I wanted to get bak my data's puting my hard disk in an USB box and ...
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  1. #1
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    hard disk recovery using USB drive box


    Hi

    I am using fedora 4 on a hp laptop.
    My motherboard burned out..

    I wanted to get bak my data's puting my hard disk in an USB box and connecting it to another machine.

    When I had installed fedora on this machine I took the automatic partition option. I kept windows in a smaller partition and fedora used the rest.

    I get 3 devices /dev/sda1 /dev/sda2 /dev/sda3
    I can acce boot partition from the hard disk but not windows and not main fedora patition. (VolGroup00-LogVol00)

    I crated 3 directory : sda1 sda2 sda3
    {venus:{root} mount -t auto /dev/sda1 sda1
    mount: unknown filesystem type 'ntfs'
    {venus:root} mount -t auto /dev/sda2 sda2
    {venus:root} mount -t auto /dev/sda3 sda3
    mount: you must specify the filesystem type

    I get boot partion in sda2
    From suse I can access windows partition in sda1 : ntfs filesystem type seems to be reconised
    I cannot access main partition (which is in sda3) using suse or fedora.

    I need to access main partition.

    Any help welcome.

    Andre

  2. #2
    Linux Enthusiast aysiu's Avatar
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    Have you tried using Knoppix?

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    hard disk recovery using USB drive box

    Hi

    I got the idea, but I don't know how to proceed...

    From fedora using fdisk Iget this info :

    {venus:root} fdisk -l

    Disk /dev/hda: 60.0 GB, 60011642880 bytes
    255 heads, 63 sectors/track, 7296 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot Start End Blocks Id System
    /dev/hda1 1 3206 25744131+ 7 HPFS/NTFS
    /dev/hda2 * 3207 3218 96390 83 Linux
    /dev/hda3 3219 7296 32756535 8e Linux LVM

    Disk /dev/sda: 40.0 GB, 40007761920 bytes
    255 heads, 63 sectors/track, 4864 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot Start End Blocks Id System
    /dev/sda1 * 1 2313 18579141 7 HPFS/NTFS
    Partition 1 does not end on cylinder boundary.
    /dev/sda2 2314 2326 104422+ 83 Linux
    /dev/sda3 2327 4864 20386485 8e Linux LVM

    So the problem is to know how to mount the LVM. As it is a fedora4 LVM it why I was looking to use fedora.

    If you have any idea how to try using knoppix. I can try koppix accept to boot on my laptop.

    Cheers

    Andre

  4. #4
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    Have you tried repairing the file system? Find out the file system type and then do check the appropriate man pages to check how to repair. Then try to mount it again. If it doesn't work I'm afraid you'll need a recovery tool.
    ** Registered Linux User # 393717 and proud of it ** Check out www.zenwalk.org
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    hard disk recovery using USB drive box

    Hi

    Thank's for your help

    How can I proceed to repair ?

    Any name of recovery tools ?

    Andre

  6. #6
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    What is the type of file system you use on both partitions?
    ** Registered Linux User # 393717 and proud of it ** Check out www.zenwalk.org
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  7. #7
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    hard disk recovery using USB drive box

    Hi

    I used defaut partitionning so I have a LVM in sda3

    using fdisk I get these info for my disk :
    Disk /dev/sda: 40.0 GB, 40007761920 bytes
    255 heads, 63 sectors/track, 4864 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot Start End Blocks Id System
    /dev/sda1 * 1 2313 18579141 7 HPFS/NTFS
    Partition 1 does not end on cylinder boundary.
    /dev/sda2 2314 2326 104422+ 83 Linux
    /dev/sda3 2327 4864 20386485 8e Linux LVM

    So it is a Linux LVM created by fedora 4

    Cheers

    Andre

  8. #8
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    Linux has tons of possible file systems...
    - Ext2
    - Ext3
    - Reiser3
    - Reiser4
    - XFS
    - JFS
    - ...

    So please find out how you formatted the partitions. Probably it's ReiserFS (= Reiser3) or Ext3.

    For ext3: e2fsck -cvp /dev/sda3

    For ReiserFS: reiser.fsck --check --fix-fixable /dev/sda3
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  9. #9
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    hard disk recovery using USB drive box

    Hi

    It is Logical Volume I think that Logical Volume manager use xt3 below.
    It is a competitor of reiserfs and Jfs (Aix Logical volum manager).
    I think that it is redhat specific and that it use at lower level ext3.
    Below the HOWTO answer to the question :
    What is Logical Volume management.

    Logical volume management provides a higher-level view of the disk storage on a computer system than the traditional view of disks and partitions. This gives the system administrator much more flexibility in allocating storage to applications and users.

    Storage volumes created under the control of the logical volume manager can be resized and moved around almost at will, although this may need some upgrading of file system tools.

    The logical volume manager also allows management of storage volumes in user-defined groups, allowing the system administrator to deal with sensibly named volume groups such as "development" and "sales" rather than physical disk names such as "sda" and "sdb".

    ************

    Boot partition which is ext3 is readable etc.
    When I start Logical Management tool in fedora it sees sda2 (the ext3 partition) but not sda3 (the LVM partition)
    Only fdisk succeed to see and identify sda3.

    Hope it help to understand.
    Any help welcome.

    Andre

  10. #10
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    Ext3 is not redhat specific. It would be a shame for a Linux distro to use a proprietary file system. All above file systems are available for every linux distribution (although you need the right kernel to support them). Try the commands I gave you above.

    Unfortunately I don't know how to use LVM, never dealt with it.
    ** Registered Linux User # 393717 and proud of it ** Check out www.zenwalk.org
    ** Zenwalk 2.8 - Xfce 4.4 beta 2- 2.6.17.6 kernel = Slack on steroids! **

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