I installed Ubuntu 12.04 at new HDD.

And now want to move my work files from old hard drive to new.

I caught some trouble with this, I can't access this disk now.

But all was correct during installation (connection was established and worked perfect).

Here is my lsblk:

nazar_art@nazar-art-System-Product-Name ~ $ lsblk
sda      8:0    1   3,8G  0 disk 
└─sda1   8:1    1   3,8G  0 part /media/nazar_art/8BAA-7FA6     // usb driver
sdb      8:16   0 465,8G  0 disk                                // new HDD
├─sdb1   8:17   0   6,5G  0 part /
├─sdb2   8:18   0     1K  0 part 
└─sdb5   8:21   0 459,2G  0 part /home
sdc      8:32   0 149,1G  0 disk                                // old HDD

It can see my usb driver from which was installed Mint. But now it doesn't see old HDD.
Any suggestion?


I can only create new partition.

It shows unallocated disk.

enter image description here

I not sure that this new partition doesn't damage information... ?

Any suggestion?

A little bit more information:

nazar_art@nazar-desktop:~$ lsblk
sda      8:0    0 149.1G  0 disk 
sdb      8:16   1   3.8G  0 disk 
└─sdb1   8:17   1   3.8G  0 part /media/8BAA-7FA6
sdc      8:32   0 465.8G  0 disk 
├─sdc1   8:33   0 464.8G  0 part /
├─sdc2   8:34   0     1K  0 part 
└─sdc5   8:37   0  1022M  0 part [SWAP]

nazar_art@nazar-desktop:~$ sudo fdisk -l /dev/sda
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 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: 0x00060485

   Device Boot      Start         End      Blocks   Id  System

nazar_art@nazar-desktop:~$ sudo file -s /dev/sda
/dev/sda: x86 boot sector, code offset 0xb8
  • How to solve this trouble?
  • Did you install Ubuntu with this old disk plugged in, and select the option to "Erase everything and install Ubuntu"? – Richard Oct 3 '13 at 21:17
  • @searchfgold6789 Of course, that not. I chosen install Ubuntu but for another disk. This was plugged but I didn't touch during installation. – nazar_art Oct 4 '13 at 10:16

If I understood correctly:

  • 160GB(149GB) HDD contains important data.

It appears that this disk does not contain a valid MS-DOS partition.

How that happened is for now beyond me, but first and foremost DO NOT proceed with any operation that will write anything to disk.

And before this question progress to "How to recover files from disk without valid partition?" I have to ask: Do you have a backup of your important files?

| improve this answer | |
  • If you need to recover the files, you can do so with Testdisk if you haven't written to the disk yet. – Richard Oct 4 '13 at 11:56

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