FAQ SearchLogin
Tuxera Home
View unanswered posts | View active topics It is currently Sat Jan 16, 2021 03:52



Post new topic Reply to topic  [ 4 posts ] 
Can't mount ntfs. Failed to read NTFS $Bitmap 
Author Message

Joined: Fri Jan 23, 2009 11:06
Posts: 2
Post Can't mount ntfs. Failed to read NTFS $Bitmap
I have 661 GB ntfs partition and Vista installed on another partition. And Xubuntu 8.10 installed on another one.

Recently I found out that my 661 GB partition can't be mounted under Xubuntu:

sudo mount /dev/sda4 /D-disk
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.

I' ve checked this partition under Vista chkdsk D: /F /R. And only ONE bad cluster was found. My C: disk has 11 bad clusters and is mounted with no problem under Xubuntu so I think it isn't cluster problem.

How to solve the problem without reformatting 661 GB disk?


Fri Jan 23, 2009 11:24
Profile

Joined: Fri Jan 23, 2009 11:06
Posts: 2
Post P. S.
661 GB partition is absolutely workable under Vista. Under Xubuntu I use the latest version of ntfs-3g.


Fri Jan 23, 2009 11:46
Profile

Joined: Thu Jan 11, 2007 21:34
Posts: 77
Post Re: Can't mount ntfs. Failed to read NTFS $Bitmap
What do dmesg and the syslog say? Perhaps NTFS-3g ready the Bitmap in an other way than Vista and stumbles over another bad block.


Mon Mar 02, 2009 00:57
Profile
Tuxera CTO

Joined: Tue Nov 21, 2006 23:15
Posts: 1648
Post Re: Can't mount ntfs. Failed to read NTFS $Bitmap
Ilya wrote:
I' ve checked this partition under Vista chkdsk D: /F /R. And only ONE bad cluster was found. My C: disk has 11 bad clusters and is mounted with no problem under Xubuntu so I think it isn't cluster problem.

Disks reserve 1-2% of the disk space as hidden to remap bad sectors to the good ones in the reserved area. This means if your disk has 83886080 sectors and chkdsk reports 1 bad sector then you have at least hidden(83886300/100) + visible(1) = 838864 bad sectors already. If the disk didn't die yet permanently then it's really time to replace it with a good, reliable one.


Mon Mar 02, 2009 01:22
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Original forum style by Vjacheslav Trushkin.