[Ubuntu-PH] Hard Disk Partition Issue

[cj pangilinan]

Hi,
See my comments below.

On Mon, Sep 15, 2008 at 10:33 PM, ar ber <ar_ber2003 at yahoo.com> wrote:

> Hi Rick and to anyone who can help:
>
> I got some problems with my disk partition here and couldn't find a way to
> resolve it. Here's a little history to consider:
>
> 1) I was running a dual boot computer - Windows XP (Italian) and the latest
> Ubuntu (english). I wanted to format an empty 80 GB *external* disk to
> FAT32 using UBUNTU. With that disk mounted, fdisk command gave this
> information then:
>
> /dev/sda0
> /dev/sda1
> /dev/sda2
> /dev/sda3
> /dev/sda4
> /dev/sda5
>

Is there really /dev/sda0? I think /dev/sda5 is not your external disk. I
think it's sda1, sda2, sda3, sda4 <sda5>. sda5 is the logical partition
inside the extended partition sda4.



> where: sda0 to sda4 were partitions of the internal disk and the /dev/sda5
> was the external disk.
>
> 2) I tried doing several suggestions I found in the Ubuntu knowledge
> database about formatting hard disks but wasn't succeeding. Playing with
> some commands at the terminal  (I don't exactly remember now each one -- but
> that was like "cxformat" or something like that) I did succeed to change the
> format. This resulted in me being unable to start my pc from windows. Worst,
> I could not anymore access my data partition d:
>
> 3) I tried correcting the problem with a GRUB Floppy disk but it was not
> working. So I finally decided to reinstall windows in the same partition.
> After the reinstallation, windows can detect now 4 partitions but can open
> only one where the windows OS is installed. The system information I find is
> something like this:
>
>      9,32
>     18,02
> C:) 19,53
> D:) 29,45
>
> where: C:) is the Windows OS system partition; *D:) is the original Data
> partition which I cannot access* and the first two, I suppose are the
> partition dedicated to UBUNTU.
>
> Furthermore, I couldn't ran my UBUNTU OS anymore!
>
> 4) I tried running the Ubuntu liveCD. Fdisk in UBUNTU now detects the
> following disk information:
>
> /dev/hda1                   HDFS/NTFS
> /dev/hda2     2551       LINUX
> /dev/hda3     3767       Extended
> /dev/hda4     6120       HPFS/NTFS
> /dev/hda5     3767       LINUX/SWAP
>

sda becomes hda? From this layout,  hda1, hda2, hda3 <hda5>, hda4.

hard disk can only contain 4 primary partitions. so you have to create one
extended partition to contain logical partitions if you want to have
multiple partitions. You should plan the layout of your hard disk before
going to install two OS in one hard disk.
What you can do now is to use the live cd to recover your data. first, you
must determine which is the drive c and drive d. hda1 is the drive c and
hda4 is the drive d. you must mount it using the correct filesystem type,
ntfs. you can use ntfs-3g or other ntfs tools. once it is mounted, you can
copy your precious data from there to any device that you can attach and
mount in your PC. then after that, reinstall windows if necessary, then
ubuntu.

hope that gives you an idea.

>
>
> I suppose  HPFS/NTFS is my D: data disk for windows. UBUNTU can access the
> data of all partitions *except that of /dev/hda4*. It says it is not
> mounted. I tried to do force mounting but it still fails to mount.
>
> Anyone who can help please so I can recover my precious data?
>
> Thanks,
>
>
> Arnel
>
>
> --
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> ubuntu-ph at lists.ubuntu.com
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>
>


-- 
Carlos Jhunie L. Pangilinan, Jr.
Consultant
www.soluziona.com
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