After installing Mountain Lion, is anyone get an interruption of the boot up process?

During the boot up process of my iMac, the system goes to a script screen with a lot of information ending with it saying "exit the script if I want to boot up". I just type in exit and the Mac sign on screen finaly comes up.
This has happend 3 times in my last 5 startups since installing Mountain Lion.
I've installed Mountain Lion on my Macbook Pro and my Macbook without any issues, this only happens on my iMac.

Not quite the same as this thread, but similar perhaps: https://discussions.apple.com/thread/4155959?tstart=0
Tyr the PRAM reset as suggested by BDAqua - might work.

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After installing Mountain Lion, my iMac gets VERY hot!

I installed Mountain Lion yesterday onto my mid-2010 21.5" iMac. Today, while running it normally, it got so very hot that I couldn't even touch the aluminum back. The heat could be felt through the glass on the screen.
The fans could be heard, but didn't seem to be going overtly fast. CPU, memory, and disk usage all appeared normal.
I had Firefox, mail, Excel, and 1Password open at the time; certainly the apps weren't taxing the system.
Anyone else have this problem? Any suggestions?
Thanks!

Although the specs for Mountain Lion say it will run on 2 GB of ram, you really need 4 GB to run well. You can look at Launchpad > Utilities > Activity Monitor to see the memory usage with software open. If there are a lot of page swaps, in and out, you need more memory.
Good sources are OWC and Crucial for guaranteed compatible memory.

MacBook pro 2009 is slow and freezing after installing mountain lion. Cannot get iPhoto to open fully, other apps are freezing.

Help! I thought I was doing the right thing by installing Mountain Lion on my 2009 MacBook Pro. It took forever to download correctly and now it is performing so poorly (freezing during applications, have to use force quit, have to use power button to shut it down, etc.) that I wish I never installed it! I want my old operating system back!

Boot in safe mode.* This will cause certain caches maintained by the system to be rebuilt. The instructions provided by Apple are as follows:
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
*Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, you can’t boot in safe mode.
Safe mode is much slower to boot than normal.
When the login screen appears, reboot as usual (not in safe mode) and test. There's no need to log in while in safe mode.

Calendar alerts on every device after installing Mountain Lion. How do I stop this? Tech support acted like I was the first person this happened to. Anyone have the solution?

I have Calendar alerts on every device [Mac/iPad/iPhone] after installing Mountain Lion. How do I stop this? Tech support acted like I was the first person this happened to. Anyone have the solution?

Well, whichever device you uncheck = exclude from calendars (and reminders) via iCloud will be excluded as both, receiver and sender. It's an "all or nothing", I guess. Otherwise it'd get more complicated, and the support calls could easily fill an extra forum...
@lmp68: don't think iTunes is it, in the days of iCloud that would sure take quite an extra effort, if possible at all.

After installing Mountain Lion, iMessages and Facetime does not work. When I try to sign-in I get a message that says: The server encountered an error processing registration. Please try again later. Apple care does not know what is the cause. Please help

After installing Mountain Lion, iMessages and Facetime does not work. When I try to sign-in I get a message that says: The server encountered an error processing registration. Please try again later. After 4 calls to apple and 8 and a half hours on the phone. The apple people does not how to solve the problem. The last thing they told me is that they will send the problem to their engineers and I will hear from them. unfortunately they have not contact me.
During the phone calls I tried putting the date and time in automatic, changing the username and password, I even tried using somebody elses username and password. Please help, facetime is my tool to telecomute, and it is hurting my job.

I had the same problem and found the solution here:
https://discussions.apple.com/thread/3189272

Can No Longer Get Camera Photos After Installing Mountain Lion

After installing Mountain Lion, I am no longer am able to see pictures from my digital camera thru the USB port. This camera has worked for years with my iMac, but not anymore. Anybody else having this issue after installing the newest system?
Dick

Paul_31:
I have not tried to import the photos directly into iPhoto. However, I did remove the SD card from the camera and plug it into a USB card reader, and my iMac would NOT read the photos that way either. I took the camera and plugged it into my Win. 7 laptop and the pictures showed up nicely, so I know the camera and the card are Ok. My iMac has been working strangely since I installed Mountain Lion. I'm getting lockups using iMovie too.
Dick

Does anyone have an email client that is working with Mountain Lion? I'm giving up on Mail after installing Mountain Lion

Hi
I give up. I just cannot see my exchange inbox in Mail after installing Mountain Lion. My mail is not being deleted. Its still in my inbox I just can't see it. I've tried everything suggested on the forums and nothing is working for me.
My productivity has completely stalled and I really need to move to an email client that is going to work seamlessly with Mountain Lion.
Any recommendations?

endobrendo wrote:
I have the same problem. Upgraded to ML, and my Mac Mail suddenly can't communicate with Gmail's SMTP server.
I have been having the SAME problem with ALL my Gmail accounts with Mail.app - It is very annoying, especially when you have clients and other important email to respond to. So you're definitely NOT alone in this department.
Might have to go back to Thunderbird or something until this gets fixed, which is going to really suck because I have 5000+ emails along with all my Email Folders in Mail not too mention the Rules I have had setup for years!
AND with the RSS Feeds NOT working in BOTH Mail and Safari! That was a HUGE MISTAKE and defintely a STEP BACKWARDS on whoever's idea that was for sure!

Many of my System Preferences will no longer work after installing Mountain Lion. Software update, startup disk, iCloud, etc. no longer will launch. I keep getting a drop down window saying I must restart system preferences in order to use. No go!

Many of my System Preferences will no longer work after installing Mountain Lion. Software Update, Startup Disk, iCloud, Time Machine, Notifications, etc. no longer will launch even though they do show their icons in the system preferences window. I keep getting a drop down window saying I must restart system preferences in order to use with a "Cancel" or "OK" choice. After I click on "OK" the window just keeps reappearing with the same choices and the pane I wish to use still remains inoperative. Third party preference panes DO work.
Reinstalling OSX Mountain Lion did not help. Neither did throwing away preferences.plist.

Hi Jeff,
Tried to reply with my iPhone but not easy! Anyway, back on the laptop now. Yes the crash was bad but Tek support at Prism Sound was really good. In the end I rebuilt the whole system on a new disk which took a couple of days with all the plugins, softsynths etc.... but there seemed to be no alternative in my case, and this was agreed with Prism sound as being the only alternative left to me. I still don't really know what caused the crash but ML and Orpheus are both working fine now. Let's face it, you'll have to update at sometime..maybe best to pick some time between projects On balance, I suspect that my problems were unique to my system and that your installation will go ok.
Hope it goes well,
Rick

Any idea how to get Yahoo to load after installing Mountain Lion??? Some sites load, but Yahoo wont at all...

Any idea how to get Yahoo to load after installing Mountain Lion??

http://www.koingosw.com/support/wiki/index.php/General_FAQ#Uninstalling_and_Pref erence_File_Locations

After installing Mountain Lion two drives on my network cannot be accessed. I am using Parallels to utilize QuickBooks ERP. The programs and data are on the drives that I can no longer access. Suggestions?

After installing Mountain Lion on my Mac Book Pro, I can no longer access two shared drives. Diagostics cannot solve the problem. I am using Parallels to run Qucikbooks ERP on these shared drives. How do I get my Mac to see these drives and access them?

Don't know what to tell you, but I also have an AEBS-Gen5 with a MBP Retina and Mac Mini using WiFi. Both are running Mountain Lion and I don't have any WiFi connection issues. Two iPhones in the household use WiFi with no issues along with a printer and 2 Windows 7 laptops.
First thing I would try is to shutdown all computers connected to the AEBS. Then power off the AEBS and finally the cable/DSL modem. Then reverse the order and power on the cable modem, wait for all the lights to be solid, power on the AEBS, wait for the light to show solid green; then power up a computer that uses WiFi.
If the above doesn't work, you might try repairing permissions via Disk Utility. If that doesn't help maybe a PRAM reset would work.

No video after installing Mountain Lion

I have downloaded and installed Mountain Lion on my Mac Pro. After the install and restart, my Mac Pro restarts however, I do not get a signal sent to my monitor. I have attached different monitors and connected to both DVI ports with no luck.

I just wanted to add to the conversation that this was EXACTLY what happened to me after installing Mountain Lion. All my contacts were gone. It showed the Groups on the side of the address book after one day but the contacts never showed up. I tried unchecking the box for the contacts in system preferences for the iCloud and then rechecking it again. That didn't help either. Came across this remedy up above about taking the Address Book from the Application Support Folder and putting it in the trash. Viola! It worked. However, I would add that I had to go into the iCloud pane and check the address book box since it then became unchecked. Once I did that, they ALL loaded back up and now they are finally there.

Ethernet connection issues after installing Mountain Lion

After installing Mountain Lion I can't get my iMac to connect by ethernet. It says that no cable is connected. The cable/connection is fine. When I plug in my MacBook Pro running Lion, the ethernet connects just fine.

same exact problem. in fact, my iMac24 (2009) worked flawlessly until I installed the latest update to Mountain Lion. I then checked my MBAir (2011) and it too has a problem when using the USB/Ethernet adapter. Neither can get an ethernet connection. I deleted my network preferences and rebooted my machine, played around with my Ethernet switch and even reboot my gateway/router. I've never had to do any of this to my network until Mountain Lion. Wireless is the only thing that continues to work on both machines.

My macbook pro is very slow after installing mountain lion

my macbook pro is very slow after installing mountain lion? Is anyone else having this issue?

If you don't use an SSD and bump your RAM up to 8 Gb's you may experience slow speeds, but I noticed slow speeds with your general configuration in SL.
one thing you should consider right now is, Spotlight is Reindexing your hard drive, that takes time and resources, (resources which you don't necessarily have to spare).
If you continue feeling like your performance is slow, you have a few options with this computer (I have the same one).
the express card slot can house a wintec SSD drive. That little door on the side of your machine is pure gold for a really quick solution for speeding up your machine. I have one in mine right now i'm using as a scratch disk for CS6 but I used to boot from it, and the speed boost was out of this world.
You could take out the internal HDD and put in a new SSD (I have a Vertex 4 from OCZ) it is completely over kill but my experience is pretty fast and I keep up with the later MBP models colleagues have.
There are some other options for you like taking out the optical drive (however I don't know if I'm supposed to talk about that here). Google Data Doubler.
You need to also set it to always use the 9600 chipset, this will increase performance a lot too. to do this go to system preferences>energy saver>Better Performance. This switches the video card to the better one and makes a world of difference.
Lastly, your RAM. after an EFI Firmware update, our computer support up to 8GBs of RAM. Do it!
Late 08 MBP 2.53 GHZ 9600 chipset 8gb ram, Vertex 4 SSD

After installing Mountain Lion doesn't external hard drives mount or stay mounted. Anybody else with this major problem?

After installing Mountain Lion doesn't external hard drives mount or stay mounted.
I have tried resetting my Mac's PRAM but the problem still remains.
Even USB memory sticks are unmounted efter a few seconds.
Anybody else with this major problem?

I have the same problem, although mine has not been solved by ESET update, finder settings, PRAM & SMC resets or anything else.
Don't get it, my external hard drive still works on both my housemates computers - one macbook pro (with snow leopard) and one dell, just not on mine with mountain lion.
Any ideas for me guys?

Mac Pro intermediate black screen at boot after installing mountain lion

I have a 2008 Mac Pro tower, but since installing Mountain Lion I now get a random black screen at boot. Unplugging the apple cinema 20' power supply for 15 minutes seems to clear the fault. Have had no such problems with other OS until Mountain Lion, seems OK when booting to Snow Lepoard on my other drive?
Anyone have the same fault?

Thanks for trying the help! I tried every version of start up, but with no screen it was no good..
Finally solved the problem, it was the ATI HD 2600 XT graphics card that was dying a very slow death.
Replaced it this morning with a GT120 Nvidia.
Anyone with this card should Google it, as apple did a big recall on these..
http://www.itproportal.com/2011/02/21/apple-extends-warranty-mac-pro-video-cards /

After installing Mountain Lion, is anyone get an interruption of the boot up process?

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