Upgrading to ML on third party SSDs...any issues?

Discussion in 'OS X Mountain Lion (10.8)' started by 50548, Jul 10, 2012.

  1. 50548 Guest

    Joined:
    Apr 17, 2005
    Location:
    Currently in Switzerland
    #1
    I remember that it took me quite a bit of planning and reading to install Lion on my iMac with a third-party SSD, considering that it is only big enough for the OS and the Applications folder.

    All other personal content, including the Home folders and User Libraries, had to be installed on the internal HD with the help of symlinks and the like in order to avoid permissions problems. Moreover, TM backups do NOT allow you to restore parts of these backups to non-boot volumes.

    So my question is: is a ML upgrade going to mess up with this careful setup that I have in place right now?
     
  2. irnchriz macrumors 65816

    irnchriz

    Joined:
    May 2, 2005
    Location:
    Scotland
    #2
    I have a Crucial M4 128GB SSD and the normal HDD in an optibay on my Macbook Pro.

    I installed Lion on the SSD and then created a user folder on the 500GB HDD.

    I then went into system preferences > users and groups > option right clicked my username and selected advanced settings. In there I pointed my user folder to the folder I created on the 500GB HDD then rebooted.

    After rebooting I removed the user folder from the SSD as my home folder is now on the HDD.

    I upgraded to ML today and everything still works. The only thing I had to do was to run the Trim enabler.
     
  3. chevalier433 macrumors 6502a

    chevalier433

    Joined:
    Mar 30, 2011
    #3
    You loose some of SSD benefits if you move your home folder to HDD.
     
  4. irnchriz macrumors 65816

    irnchriz

    Joined:
    May 2, 2005
    Location:
    Scotland
    #4
    The files that are loaded from the HDD make little noticeable difference in use as they are documents etc which are small and load quickly. Likewise with user library's.

    I keep all of the applications on the SSD and everything flys.
     
  5. 50548 thread starter Guest

    Joined:
    Apr 17, 2005
    Location:
    Currently in Switzerland
    #5
    So just to be clear: you upgraded to ML and NOTHING has changed in terms of permissions, symlinks, home folder or time machine backups as previously configured under Lion?

    Thanks for your confirmation!

    P.s.: TRIM Enabler may actually lead to decreased performance in modern drives as exhaustively explained elsewhere...besides, my SSD is Sandforce-enabled, which means TRIM is not necessary in my case...
     
  6. negativzero macrumors 6502

    Joined:
    Jul 19, 2011
    #6
    Did the same upgrade and nothing's changed. No issues with symlinks and I do a permissions check after to repair the permissions so everything runs properly.
     
  7. chevalier433 macrumors 6502a

    chevalier433

    Joined:
    Mar 30, 2011
    #7
    The Library folder which caches exist you dont want it in the HDD.
     

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