NTFS drive does not mount under Lion.

Thanks a lot! Worked for me!!! I'd also deleted ufsd_NTFS.fs from library.

thanks boddie8, that worked!!! (I didn't know what the difference between 4 and 5 was, so I just did 5). but it worked!

none of this is working for me i'm afraid. tried all the steps given by boddie8 a couple of times, nothing has changed - computer still not reading/mounting the drive.

i would love to delete that file from System/Library folder that has been mentioned but ever since I upgraded to Lion there is no longer the Library folder on my computer, simply can not find it. so annoyed and disappointed!

Hey, pal. I understand how you feel, I had the same problem. Don't worry, I'm sure you'll solve your issue, don't give up.

Umm, may I suggest to give a read to Marco.Cantu.Gea's comments in the first page of this thread. It might give you a temporary solution to the mounting problem. Go on, give it a try.

thanks MrJeypi tried the Marco.Cantu.Gea's proposition a few times until it finally worked! i wonder if i will have to type that into Terminal every time I need to read something off my hard drive now? :/

and now that this issue is temporarily solved have to deal with another problem that occurred since upgrading to Lion. sigh..

Unfortunately, yes... You will have to make the same procedure every time you want to mount your HD...

Keep in mind that this is will give you a "read only" access; for the meantime you won't be able to write onto your HD.

Anyways, I think that's better than nothing.

If it helps, this is how I solved my very own issue:

1. I uninstalled every NTFS driver that I had on my Mac.

2. I restarted.

3. I deleted the file on this route: /System/Library/filesystems/ufsd.fs

(I did a backup of the file, just in case)

4. I reinstalled a NTFS driver, (I used Paragon NTFS for Mac v.9.0)

5. Restart again.

6. You're done. You should be able to mount your external NTFS drive.

I've heard there are a lot of bugs with Lion... Ultimately, I think we'll have to wait for an Apple update... Yes, I know, it's disappointing :S

Good luck, dude!

Open Terminal at your home directory and type

chflags nohidden ~/Library/

This will show up Library folder in the finder window.

Alternatively, Hold Option key and click Go to show up Library folder to go to.

Deleting ufsd.fs and ntfs files, then reinstalling ntfs-3g will solve your problem as mentioned in one of the above post.

thanks for the tip, did manage to reveal the Library folder finally, however no such thing as filesystems in there nor any ufsd.fs file. or perhaps it's not coming up in search.

i feel like i'm getting closer to permanently solving the issue - slowly and step by step though...

same with morbid. the ufsd.fs is under system/library folder. the one hidden is user/library folder. please confirm on how to get to the system/library folder. i've tried using terminal but ufsd.fs is a folder. i'm not that familiar with unix so not sure how to delete properly and/or backup the folder. please help. thanks.

tried rmdir ufsd.fs but permission denied. :S

i'm the administrator on my laptop but no luck. please help.

To reveal Library folder, there are various methods, simpleones are

Open Terminal at your home directory and type

chflags nohidden ~/Library/

This will show up Library folder in the finder window.

Alternatively, Hold Option key and click Go in Finder to show up Library folder to go to.

You are getting permissions denied in Terminal because you have not set user password to login. Though you are an administrator, you need to set login password to have full funtionality of Terminal. Try it.

didn't work. i'm able to delete by login as a root user using sudo.

-MacBook-Pro:~ username$ sudo -s

password: <typeyourpasswordhere>

bash-3.2# whoami

root

then you can go to the folder/file to delete

use rm -r ufsd.fs

then try to search/ls again the folder is already removed.

Have tried the both fixes listed above and got No such file or directory in Terminal. I have a WD 1 TB My Book Media drive. Not able to erase/re-format or partition - keep getting error - could not process last block of device. Can see it in disk utility and in system report but that's it. Disk utility says is in not formatted, however i have been using the external drive for months with no problem. Is there anything else that can be done so that i don't lose access to all of my back up information ?

this method works for me.

I just deleted this file from my library:

/System/Library/filesystems/ufsd.fs

I DID NOT install macfuse or other 3rd party ntfs reader, and it works just fine.

Cheers!

irwansg thanks for the tip but what do i do if there is no such folder as /filesystems/ in my Library? doing a search for it or for the ufsd.fs file gives no results, not in spotlight nor in Terminal: 'no such file or directory'

how do i find the file to delete???