mismatching heads/cylinders?

Using TestDisk to repair the filesystem
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MNick88
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Joined: 14 Dec 2016, 18:40

mismatching heads/cylinders?

#1 Post by MNick88 » 14 Dec 2016, 19:14

I have a Lenovo Yoga 2 11 model , Intel processor and graphics card, Windows 8.1 Pre-installed, upgraded to Windows 10 a year ago. 2 months ago, without any warnings the system would load. I tried using Auto-repair, system recovery, sytem image recovery, safe mode would work, only the command prompt. I tried running chkdsk /f /r, I've tried cleaning the entire drive, fresh installs of Windows 8, 8.1, 10, Linux and Ubuntu but could never complete because of an error. I do not remember the error codes but I know they would be different most of the time. I'm told the hard drive is failing however diskpart shows healthy. I don't get it.... I ran TestDisk and got these results. Can someone please let me know what TestDisk is trying to tell me? I appreciate any help and thank you for your time.


Disk /dev/sda - 500 GB / 465 GiB - CHS 60801 255 63
Analyse cylinder 150/60800: 00%
Read error at 149/239/59 (lba=2408800)

MS Data 2048 616447 614400

MS Data 616448 821247 204800 [NO NAME]

MS Data 2048 923647 921600

MS Data 923647 1845246 921600

Warning: number of heads/cylinder mismatches 2 (FAT) != 255 (HD)
Warning: number of sectors per track mismatches 18 (FAT) != 63 (HD)
MS Data 2184776 2187655 2880
[EFISECTOR]

Warning: number of heads/cylinder mismatches 2 (FAT) != 255 (HD)
Warning: number of sectors per track mismatches 18 (FAT) != 63 (HD)
MS Data 2187656 2190535 2880 [EFISECTOR]

Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (HD)
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (HD)
MS Data 2293011 2299184 6174

Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (HD)
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (HD)
MS Data 2299184 2305357 6174 [Boot]

Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (HD)
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (HD)
MS Data 2299203 2305376 6174

Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (HD)
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (HD)
MS Data 2305376 2311549 6174 [Boot]

Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (HD)
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (HD)
MS Data 2305395 2311568 6174

Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (HD)
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (HD)
MS Data 2311568 2317741 6174 [Boot]

Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (HD)
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (HD)
MS Data 2311587 2317760 6174

Warning: number of heads/cylinder mismatches 16 (NTFS) != 255 (HD)
Warning: number of sectors per track mismatches 2 (NTFS) != 63 (HD)
MS Data 2317760 2323933 6174 [Boot]

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cgrenier
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Re: mismatching heads/cylinders?

#2 Post by cgrenier » 15 Dec 2016, 07:27

The disk geometry is not important in your case.
The message "Read error at 149/239/59 (lba=2408800)" means there are bad sectors on the disk. The disk is not healthy contrary to what diskpart told you.

You should clone the disk to a new empty one using gnu ddrescue.
See "DDRescue: data recovery from damaged disk" and "Creating a live USB" from https://www.cgsecurity.org/testdisk.pdf
Once it's done, remove the original disk and try to access your data on the clone.

MNick88
Posts: 2
Joined: 14 Dec 2016, 18:40

Re: mismatching heads/cylinders?

#3 Post by MNick88 » 15 Dec 2016, 16:34

I appreciate you taking the time to respond to my situation cgrenier. When you say "clone the disk to an empty new one" you mean a new hard drive right? So clone my hard drive to a new one then remove the bad hard drive and replace it with a new hard drive that has the cloned data on it right
?

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cgrenier
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Re: mismatching heads/cylinders?

#4 Post by cgrenier » 23 Dec 2016, 14:51

Exactly

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