Grey screen after tiger to snow leopard upgrade

I've just upgraded my macbook from tiger to snowleopard via leopard. All seemed to work OK until the snow leopard login screen. It just hung there with the beach ball. I shut down and restarted and since then all I get is the grey screen.
I've tried:
a safe boot ----- result grey screen
boot from disk --- grey screen
resetting PRAM and eventually after leaving it for 20 min it booted from the disk. I then went to disk utilities and tried repairing. It failed and I got a message telling me to backup and format the disk.
So then I tried backing up via firewire target disk, but the host computer can't see the harddrive of the macbook (it does see the snow leapard installation dvd thats still in the macbook).
Any ideas on how to retrieve the data on the macbook? or is it a lost cause?
thanks

[See this read.|http://support.apple.com/kb/TS2990] The message is try to do a repair install of Sno by installing Sno over whatever part of Sno is on your internal drive.

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    I have a mid 2011 that came with Snow Leopard and disks.  I upgraded from there to Lion - then whatever came next and to Mavericks and finally Yosemite, which was a nightmare for me. I did not use disks of any of the rest.  So I just decided to take my disks and go back to Snow Leopard.  I did this and it asked to go to disk utility and repair both the HD and Permissions.  It came out ok, but there was an instance where looking at the list in HD repair, I saw Suid File System Library Core was moved and cannot be repaired. I went ahead and erased the Hard Drive. Then closed out and installed Snow Leopard. I'm not sure I did it right because I had to rename the new start up disk and typed in unnamed 1.
    after that I was able to start up to Snow Leopard. It worked fine until I tried to download all the updates. Then it didn't seem to restart, but just went to the sign in screen.  So I had to keep shutting down and turning it back on. No updates. One of times I started up, I got the blue screen after the apple and gray screen.
    Also on start up the apple comes up without the chime. Last night I got some instructions from a similar situation and tried to use my disk to a clean reinstall all over.  It didn't work, still the blue screen. (it does fine in safemode.)
    I need help to get this mac running.  If someone can help me......

    Clean Install of Snow Leopard
    Be sure to make a backup first because the following procedure will erase
    the drive and everything on it.
         1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
             with your computer.  Insert the disc into the optical drive and restart the computer.
             After the chime press and hold down the  "C" key.  Release the key when you see
             a small spinning gear appear below the dark gray Apple logo.
         2. After the installer loads select your language and click on the Continue
             button. When the menu bar appears select Disk Utility from the Utilities menu.
             After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
             size.)  Click on the Partition tab in the DU main window.  Set the number of
             partitions to one (1) from the Partitions drop down menu, click on Options button
             and select GUID, click on OK, then set the format type to MacOS Extended
             (Journaled, if supported), then click on the Apply button.
         3. When the formatting has completed quit DU and return to the installer.  Proceed
             with the OS X installation and follow the directions included with the installer.
         4. When the installation has completed your computer will Restart into the Setup
             Assistant. After you finish Setup Assistant will complete the installation after which
             you will be running a fresh install of OS X.  You can now begin the update process
             by opening Software Update and installing all recommended updates to bring your
             installation current.
    Download and install Mac OS X 10.6.8 Update Combo v1.1.

  • Tiger to Snow Leopard upgrade for iCloud?

    Be gentle with me I am a user but a technophobe!
    In the first instance...I have received a free upgrade CD for Snow Leopard and been told to pay for an upgrade to Lion first then instal Snow Leopard. Not really sure which one and where to go. I want to be able to see my mobileme emails on my Power Mac G5
      Machine Name:          Power Mac G5
      Machine Model:          PowerMac7,2
      CPU Type:          PowerPC 970  (2.2)
      Number Of CPUs:          2
      CPU Speed:          1.8 GHz
      L2 Cache (per CPU):          512 KB
      Memory:          4.5 GB
      Bus Speed:          900 MH
    I have noticed some comments that make me think my machine will not support these upgrades?
    What should I do?
    Will I still be able to remotely access my .me account emails after the change ie; online?
    Why the **** isn't it easier for existing customers who are paying for this service to change over!!!?
    ...one very confused person here!

    You cannot install Snow Leopard or Lion on your Mac: an Intel processor is required.
    You can set Mail up manually in Tiger to access your iCloud emails once migrated from MobileMe:
    Entering iCloud email settings manually in Tiger
    The migration is done at http://me.com/move though I'm not sure wether Safari on Tiger can access this: you may have to find another more recent machine to do it on.
    You will not be able to sync your calendars or contacts, nor access any of iCloud's other facilities.

  • Tiger to Snow Leopard upgrade not working out

    I bought the Mac Box set over the weekend and tried to install it yesterday. We were running - I think - 10.4.7, and wanted to upgrade to 10.6 in order to run some game apps our kids got recently. Right from the get go, things did not go well. On installing the OS, I repeatedly got an "Installer quit unexpectedly" message. We tried rebooting but it just kept doing the same thing - Installer quit unexpectedly. After a few minutes, we realized that the OS did in fact install OK, but all the other Optional Install materials were not installing. So, it seems, the QuickTime update and anything else included was not installing. They still won't. The iLife and iWork packages won't install. And aside from Firefox, all our apps are not working now. I don't mind reinstalling the apps - but nothing will install!!! Should I uninstall 10.6 and try again? Not sure what to do at this point.
    John

    For an install of Snow Leopard (as opposed to updating it), I would not worry about updating the previous OS version nor about repairing that version's permissions. The Snow Leopard installer is much different from previous ones & does little more than test the target drive & write some pre-install files to it before rebooting from the DVD's copy of Snow Leopard, which it does as root user. And if it can't do those pre-install steps, it quits with an error before rebooting from the DVD.
    So, if it successfully reboots from the DVD, permissions on the target HD are irrelevant (because root user has essentially unlimited access to the HD's files, even to the few that can be changed only when starting up as root user) & the old OS version even more so because it is completely replaced by the new one.
    Also, it is not necessary to run fsck or Disk Utility's 'repair disk' step if the installer successfully reboots from the DVD because one of the pre-install steps does exactly the same thing as Disk Utility's 'verify disk' step, so if it gets this far, you know the corresponding repair would find nothing to do.
    If it gets this far & you get an "Installer quit unexpectedly" message before the final reboot into the login screen, you probably have one of the following problems:
    • A hardware issue of some kind, including a defect in the optical drive that prevents it from reading all the files on the DVD accurately, one or more substandard or out-of-spec memory modules (especially if any are 'generic' aftermarket ones), or in some subsystem of the Mac (graphics processor, power supply, whatever). Running the Apple Hardware Test from your original gray installer disc will often (but not always) detect this kind of problem.
    • A defective, scratched, or dirty Snow Leopard installer disc. This is particularly a likely cause if the installer quits at about the same point in the process each time. Visually check it carefully for any signs of damage or contamination & if possible test it with another Mac.
    • An attached peripheral that is interfering with the install process. Disconnect all but the essential ones (keyboard & mouse for an iMac) & connect them in the recommended way: keyboard to a USB port on the Mac & mouse into a keyboard port if they are wired. Then try running the installer again. Note: this does not apply to a network connection to the Internet, which is used in the pre-install phase to try to contact Apple's list of incompatible software & update what is on the DVD's list.
    • A nearly full HD. The pre-install tests do include a check for enough space for the installation but since this is not completely predictable there is small chance the installation process will run out of scratch space to assemble files if you are very near the calculated limit. The installer typically needs about 6 GB of free HD space for this, so try to free up an additional several GB if you are close to this limit before doing the install. However, note that the final OS installed will need at least this much scratch space once it is running, so plan accordingly. 10 to 15% of the total drive capacity is a rule of thumb many recommend.
    There are other issues to consider if the process completes & reboots into the login screen but that doesn't sound like what's happening here.

  • 1st Gen Intel IMac - Will Tiger to Snow Leopard upgrade work?

    My IMac dates from late 2006 & was purchased when Apple first started selling the Intel Dual Core machines. Here's my specs:
    Model Identifier:    iMac4,1
      Processor Name:    Intel Core Duo
      Processor Speed:    2 GHz
      Number Of Processors:    1
      Total Number Of Cores:    2
      L2 Cache (per processor):    2 MB
      Memory:    2 GB
      Bus Speed:    667 MHz
      Graphics card is an ATI Radeon X1600
      Current Tiger version is 10.4.11
      Disk space not an issue, have > 177 GB available
    Snow Leopard supposedly requires only 1 MB of RAM, but I've seen other discussions with commenters recommending 2 MB minimum (kinda took me back to my PC days..."look at the specs on the Microsoft package and double them"). I haven't opened the Snow Leopard package yet, so I can still return it if necessary. So what do the community's experts think...will I be able to do the upgrade without any problems, or am I setting myself up for a world of pain? Thanks in advance to all!

    Yes you can, as the great Kappy guy sez, but the Core Duo only supports 32 bit mode, not 64 bit mode. & 10.6.x is as far as you'll ever be able to upgrade it.
    Do max the RAM out if it isn't already...
    http://eshop.macsales.com/shop/apple/memory/

  • Authorizing my iTunes after new HD/Snow Leopard upgrade

    Nothing is working. I tried all the apple suggestions. It still just says:
    "This computer is already authorized.
    Including this one, you have authorized one computer out of your available 5."
    But doesn't actually authorize it, even after I have made sure I'm using the right ID and password.
    please help!!

    The Snow Leopard disks will install Snow Leopard, but not the bundles software which will be on the original disks which came with your computer. If you have other means of restoring them then you can just use the Snow Leopard disks, but you might be better off installing Leopard first then upgrading (it doesn't take long). Then you will want to update to the latest either using Software Update or the combo updater.

  • ATI TvPortal Green Screen After Update to Snow Leopard

    Hi,
    Is there any solution to this problem. I left messages at Diamond Multimedia and ATI and both
    blame Apple for this problem.
    Since the OS update my TV card is a plastic brick.
    I would appreciate if you give me an answer to this problem.

    Same thing here. I already had OS X 10.6.2 and when I installed the original drivers for the TV tuner fm the CD that was included, I had good audio and marginal video. I ran the auto-update on the software and downloaded/installed the latest version of the ATI drivers. That resulted in the same problem everyone else has listed: green screen and audio on all channels. I too tried to back out the update and reinstall the original drivers and now have crappy video and no audio. Tried calling ATI and their help line refers you to a former component supplier who informed me they have no visibility on the Mac drivers for the new ATI tv tuners, and suggested I contact Apple.
    It would be ideal if someone could come up with the fix on this issue.

  • After I upgrade from tiger to snow leopard, my macbook pro more often freezes. Any solution? Do I need to increase memory? If so, how?

    After I upgrade from tiger to snow leopard, my macbook pro more often freezes. Any solution? Do I need to increase memory? If so, how?

    After I upgrade from tiger to snow leopard, my macbook pro more often freezes. Any solution? Do I need to increase memory? If so, how?

  • Problems with Aperture after upgrading from Tiger to Snow Leopard

    Help!  I recently upgraded my IMac operating system from Tiger to Snow Leopard.  Now, I am finding my aperture is not responding the way it used to.  I cannot change the border dimensions; I can't print.  Any suggestions would be appreciated.  I was told by Apple Technical Support that they will not provide support for Aperture 2 and that I would have to upgrade to Aperture 3.  Is this correct? 

    This is called a Kernel panic.
    See here for possible solutions:
    http://support.apple.com/kb/TS3742
    Did you do anything else apart from ungrading OS?
    Did you add memory?
    Bad or not well seated memory modules are often a cause of kernel panic

  • Logic Express 9 Crashes after Snow Leopard Upgrade from Tiger

    I just upgraded from Tiger to Snow Leopard. I have yet to install iLife, though I have it. I have installed Logic Express. Everytime I attempt to pull it up, it crashes with some sort of kern protection failue. Can anyone advise me?

    Hi Cris,
    These might be Obvious and things you have already done... But...
    Since doing the Upgrade... Have you Run Software Update... Repaired Permissions and Restarted...?
    Also how did you Put Logic on... From the Original Install Discs...?
    And, I'm not sure... But Logic Express maybe expecting to see iLife Installed...
    Cheers,

  • Can't Print After Snow Leopard Upgrade

    I have a home network centered around an Apple Airport Extreme Base Station. The base station is wired to a Linksys network switch which, in turn, is wired to two computers - an Apple Dual G5 running OS X 10.4.11 and a and Mac MIni which, until yesterday was running Leopard. I have an HP Laserjet P1006 connected to the USB port of the AEBS and, until yesterday, everything worked fine. Yesterday, I ran the Snow Leopard Upgrade on my Mini and now the Mini won't print to the HP over the network. If I connect the printer directly to the MIni, it works fine; as soon as I reconnect the printer to the AEBS, the Mini will no longer print. The lights on the printer will flash but nothing comes out. I have downloaded the HP Printer driver update from Apple but this didn't help. I have reset the AEBS, to no avail. The G5 running Tiger has no problems with printing. And, my daughter just got a brand-new MacBook Pro loaded with Snow Leopard from the factory and she can print to the HP over the network without any problems.
    Any ideas?

    When I upgraded iMac from Leopard to Snow Leopard 10.6 it also stopped printing wirelessly to Brother MFC6490CW.
    I thought I had this same issue with my Epson printer when wireless printing. Actually, in SL, wireless printing is very slow at least with an Epson. Takes about 5 minutes or so for wireless print to even start. When checking the printing status app, it will start out saying "printer ready." Then after a few minutes it will say "looking for printer." A few minutes later it will say "printing."
    When I go into the next room where the printer is, the green light is "flashing" letting me know that "printing" has started.
    So I guess what I am trying to say is to check the printing status app after you click "print." It's possible "Brother" is just as slow as "Epson."
    Message was edited by: CMCSK

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