Apple servers are very busy today, as the company is distributing new Mac versions of iPhoto, iMovie, Safari and iWork in addition to the OS. Our readers have reported a range of download times from one to three hours.
The Mountain Lion installer is 4. All this means you should set some time aside and get comfortable. Tell us how it goes. Once I am done with this install, before setting anything else up, I plan to command-r start up and copy the disk image to a 32Gbyte SD card or usb drive.
And then when I am running again, I can do download tests various ways and see what I get. Posted on Aug 11, PM. Page content loaded. Update: It has been more than 5 hours now, and the mac book air is saying about 24 hours and 45 minutes more I have found a post saying it took 2 hours and 20 minutes to download a.
Aug 11, PM. Update2: There is something very wrong with wireless on mountain lion recovery. I don't know what the problem is, but this link may explain:. Wireless recovery would start out with over 25 hours estimated and kept on failing. It turns out to be a two step process of downloading a few Mbytes then a 4Gbyte. I bought the thunderbolt to gigabit ethernet adapter, plugged it in, restarted recovery and download of a little more than 4Gbytes took less than an hour.
My limiting factor was probably comcast home internet rate of 12Mbps. The wi-fi wireless connection should be able to do over Mbps, so wireless shouldn't be much slower than wired, except wi-fi wireless is broken.
Now that ML is installed and updated, wi-fi seems fine now, as I am using it right now, but I haven't tried downloading a big file yet. Aug 13, PM. That's it. Apple servers are very busy today, as the company is distributing new Mac versions of iPhoto, iMovie, Safari and iWork in addition to the OS.
Our readers have reported a range of download times from one to three hours. The Mountain Lion installer is 4. Click Purchased. Click Install. So in general the answer is: do not close the lid of the laptop when it is updating. Reinstall your computer's original version of macOS from the internet: Press and hold Shift-Option-Command-R until a spinning globe appears, then release the keys.
You might need to remove some startup programs, run updates on your system, or clean out your storage drive to fix this issue. But if none of these fixes have an effect, reinstalling macOS can likely help speed up your system. This is especially the case if your Mac is approaching a decade of life. It also depends on how securely you erase your hard drive because some programs erase your disc times to make sure none of the data is recoverable.
I'd estimate anywhere from 1 to 5 hours would be the norm but it's possible for it to take up to 12 hours.
The macOS Catalina installation should take about 20 to 50 minutes if everything works right. This includes a speedy download and a simple install with no issues or errors. As long as you bought a Mac from June 11th onwards, you're eligible for a free upgrade to Mountain Lion! Just make sure you request your upgrade within 30 days of Mountain Lions ' release and the free upgrade is yours! Each update is provided with its own installer as a stand-alone version in case users experience problems with the Software Update tool.
Download and apply the update , then restart the computer, if prompted. Reinstalling Mountain Lion Restart your computer, and immediately hold down command-r until the gray Apple logo appears.
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