Currently Being ModeratedJan 31, 2013 6:58 PM (in response to WaiGuo Guizi)
Two days, 38 views, but no replies. Perhaps there are no replies because I put the post in the wrong support community? I now believe I should have put it in the support community Mac OS X Technologies. But I don't like to cross-post a question in two communities, and there doesn't seem to be any way to delete the post from this community. What to do? What to do?
Currently Being ModeratedJan 31, 2013 10:37 PM (in response to WaiGuo Guizi)
If it is truly a duplicate and all the originals of the files are elsewhere, then you should be able to; however, messing around in the Library folder is not to be taken lightly. So, you could move the folder to the trash, but do not emptyyet. Or, copy it to an external for safekeeping and then move it to trash and empty. Now restart your computer and see if everything works. Observe behavior for several days, make sure all apps work, etc. If everything seems to be working as expected, go ahead and empty trash (if that is where you parked it), or simply delete it from the external drive and empty trash. Be prepared to possibly have to reinstall the OS - just in case - so be sure to make a complete backup before embarking on this.
Currently Being ModeratedFeb 3, 2013 1:05 PM (in response to babowa)
Thanks for your advice. The plan of action you suggest is along the lines I was planning myself. However, before I do it, I would like to find out where the folder ~/Library/Application Support/Macintosh HD/ came from and what its purpose is or was.
So I am going to post the original question on at least one non-Apple forum to see if anyone knows anything about this folder before I trash it.
I've googled ~/Library/Application Support/Macintosh HD/, but haven't seen any Webpages that shed light on what it is. Most of the Webpages that Google turned up contain references to a completely different folder, namely, /Volumes/Macintosh HD/Library/Application Support/, rather than the folder I am interested in. Just to be clear, the folder I am considering trashing normally has the full pathname /Volumes/Macintosh HD/Users/<your user name>/Library/Application Support/Macintosh HD/ .
The lack of references on the Web leads me to suspect more strongly that this folder is spurious and can be trashed.
One guess I have is that this folder may have been created when the Shanghai Apple Store migrated my OS X installation and data files from one physical hard drive (HD) to another in April, 2012. Tea had been spilled on my MBP, which damaged the system board, so I bought a replacement MBP. However, the old HD was undamaged, so the Shanghai Apple Store migrated my system installation and data from it to the HD in the new MBP. This involved upgrading to a new level of OS X -- from Snow Leopard to Lion, if I remember correctly. Could it be that this migration process involved creating the folder ~/Library/Application Support/Macintosh HD/?
The other fact that may somehow have a bearing on the mystery of this folder is that I renamed my new system disk from Macintosh HD to HTS750Gb almost immediately after the migration in Shanghai. (That's why I used the word normally in the last sentence of the third paragraph above.)
So that means the full pathname of the suspicious folder is /Volumes/HTS750Gb/Users/<my user name>/Library/Application Support/Macintosh HD/.
HTS750Gb is an abbreviation for Hitachi TravelStar 750-gigabyte, which describes the new physical HD. The reason I rename all my system disks is that I have a lot of HDs -- external ones and internal system disks -- connected to my current MBP either through its hardware interfaces or through my home LAN. At one point I had three MBP system disks on the LAN. Sometimes, in order to figure out where a given file is located, it helps me if the pathname starts with a volume name that describes the physical HD.MacBook Pro, Mac OS X (10.7.5), 17" late 2011, 2.5 GHz i7, 8 GB RAM
Currently Being ModeratedFeb 3, 2013 1:59 PM (in response to WaiGuo Guizi)
Well, I'm stumped as to how/why that folder is where it is; apparently not too many others have encountered that either since there haven't been any other replies. The only thing I can think of is that you inadvertantly drag 'n dropped it from elsewhere and/or it has something to do with where your Hitachi drive parks itself (it that's the case, it should not do that). Does that drive show up where it should in Disk Utility and on the desktop for you to access? If so, then one could safely assume that it is just a duplicate.