No version of OS X can write to an NTFS disk - they can read NTFS disks, but not write. So you must have had a utility that would do that for you. This could have been Paragon NTFS for Mac, or the open source (free) MacFuse. If it was Paragon NTFS, check their website for a Lion version; if it was MacFuse you can't use it in Lion because the original MacFuse software is 32-bit only and Lion runs in 64-bit mode. Did you or someone else install either of these programs under Snow Leopard?
Read the points in my earlier post. Activating the native NTFS write capability in Mac OS X is unstable. Many have reported problems with it. 3rd party solutions have proven to be more reliable.Being compiled in the Kernel is the very definition of "native", the default mount setting being write only is pretty insignificant, and if you are going to trust you data to the kernel thats reading and writing the HFS+ you may as well trust it to write the NTFS.
I've been using MacFuse since SL and it works great under Lion as well. All my file servers sit on a VMWare ESX server in my basement. They use NTFS with Windows XP and Win 7. I can mount any of those volumes and read/write to them with ease.
http://code.google.com/p/macfuse/
I've used both Tuxera and ParagonNTFS with OS/X 10.6 without any problems. I have ParagonNTFS (9.x) installed on my MBP, which I upgraded to 10.7 last week; NTFS driver is still working without problems.
Tuxera: http://www.tuxera.com/
ParagonNTFS: http://www.paragon-software.com/home/ntfs-mac/
Only drawback with MacFuse is confusion about 64-bit driver compatibility.
There are ample reviews elsewhere. There is no need to add another one here. That said--given this choice, I would go with Paragon. You may give me this choice, but that does not mean that I will accept it. Tuxera's NTFS-3G is free. It is what I use.Which one better? Tuxera or Paragon? please share you review...
Read the previous posts in this thread like the mine immediately before yours. MacOS X can read, write, and format NTFS volumes if you have an NTFS driver installed. As I stated in my last post, I use the freeware NTFS-3G driver. With the ability to read and write NTFS, it is stupid to format a DOS drive as FAT32....
Although it seems like some of the above-mentioned software will do the job, am I correct in thinking that a long term solution would be to: get all the data off the drives onto my old PC; reformat them both as FAT32; put everything back on - and then I will be able to read / write to them via my Mac without the need for third party software?
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Read the previous posts in this thread like the mine immediately before yours. MacOS X can read, write, and format NTFS volumes if you have an NTFS driver installed. As I stated in my last post, I use the freeware NTFS-3G driver. With the ability to read and write NTFS, it is stupid to format a DOS drive as FAT32.
BTW, if you have trouble reading NTFS, then your drive may have issues.