mount ntfs and W95 Ext'd (LBA) partitions

rey · 02-04-2015, 09:06 PM

hello
I have this laptop hard drive, I removed it from a broken laptop, it shows 4 partitions on debian kde bar,

so far I can mount three out of four partitions, that's the recovery partition, the boot partition and the recycler partition, however I can't mount the last partition where all the data seems to be (user data), mount command shows some errors and info but I don't know what else I can do

the partition table shows:

Code:

Disk /dev/sdc: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xab4c3c01

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1   *           1          13      102400    7  HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sdc2              13       30169   242221056    7  HPFS/NTFS
/dev/sdc3           30169       75215   361836544    f  W95 Ext'd (LBA)
/dev/sdc4           75215       77826    20968448   27  Unknown
/dev/sdc5           30169       75215   361835520    7  HPFS/NTFS

after trying to mount each partition I got:

Code:

/dev/sdc

NTFS signature ism issing.                 
Failed to mount '/dev/sdc': Invalid argument  
The device '/dev/sdc' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?

Code:

/dev/sdc1  mounts ok!, it shows boot directories

Code:

/dev/sdc2

ntfs_attr_pread_i: ntfs_pread failed: Input/output error
Failed to read NTFS $Bitmap: Input/output error
NTFS is either inconsistent, or there is a hardware fault, or it's a 
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
then reboot into Windows twice. The usage of the /f parameter is very  
important! If the device is a SoftRAID/FakeRAID then first activate 
it and mount a different device under the /dev/mapper/ directory, (e.g. 
/dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation 
for more details.

Code:

/dev/sdc3

NTFS signature is missing.                    
Failed to mount '/dev/sdc3': Invalid argument    
The device '/dev/sdc3' doesn't seem to have a valid NTFS. 
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?

Code:

/dev/sdc4  mount's ok! shows the recovery data

Code:

/dev/sdc5 mount's ok! shows the recycler bin data

thanks for your help, I really need this!!

yancek · 02-04-2015, 09:14 PM

Quote:

NTFS is either inconsistent,

That usually means problems with the filesystem and chkdsk needs to be run on the partition for whatever reason which I believe you need windows to accomplish.

syg00 · 02-04-2015, 09:32 PM

In a normal (i.e. default) Win install, /dev/sda2 will be your system partition - the guts of the system.
And yes, you need to do as the message says. Twice.

If there was a separate user data partition, that would be /dev/sda5. Better start looking in that recycle bin ...

allend · 02-04-2015, 11:29 PM

To me, it looks like a borked Windows 7 install.
/dev/sdc1 is a small partition for the Windows 7 boot loader.
/dev/sdc2 is the Windows 7 C: drive.
An extended partition has been created (/dev/sdc3) and an additional Windows drive (perhaps D:) has been created (/dev/sdc5) in the extended partition.
/dev/sdc4 appears to be unallocated disk space, but probably contains the Windows recovery image.

As has been said before, repairing NTFS file systems needs to be done using the Windows chkdsk tool.

rey · 02-05-2015, 12:57 AM

everything works now!!!, I hooked the disk to an old winxp laptop and did the chkdsk /f command and rebooted a few times, thanks for your help!!!