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Can't Verify OSX Mavericks Download

Installation of Mavericks fails and states that download is corrupt and to redownload from the App Store. This is my 4th time deleting and restarting the download. File is the correct size, intact, and in the applications folder. Any help is much appreciated. Even though I have Comcast Extreme 105, I hate burning the cycles on this.


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Posted on Oct 22, 2013 2:57 PM

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103 replies

Oct 22, 2013 3:40 PM in response to meadowsoft

I had the same problem and this worked for for me:

After downloading and deleting manually (drag and drop from the app folder to the trash bin) twice, I tried to do differently. I didn't delete the installation file and simply launched the App Store, went to Mavericks page and pushed the button "Download" at the upper left corner (where the price of the app is usually shown), even though the copy of the installation file was already on my computer (this time I didn't delete it before dowloading again). The download started and at the end this annoying pop-up window telling about the copy verification problem didn't show up. Now installing Mavericks. Maybe this is just a coincidence, but I suggest trying since noone here seems to propose another solution.

Tell me if it works! And good luck!

Oct 22, 2013 7:04 PM in response to meadowsoft

I get the same error when trying to install Mavericks and have tried about everything. I have downloaded this 5 gig installer about 5 times today already.


I went so far as to reformat my drive, reinstall mountain lion, and try the Mavericks update on a brand new install. After that failed, I decided to get tricky and make a bootable Mavericks install USB flash drive. It fails with the same verification error.


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Oct 22, 2013 8:49 PM in response to meadowsoft

I am having same problem. For those who can successfully run the install, can you get the SHA1 checksum for your installation?


Open the terminal, and run this:


/usr/bin/openssl sha1 /Applications/Install\ OS\ X\ Mavericks.app/Contents/SharedSupport/InstallESD.dmg


I'm getting this:


SHA1(/Applications/Install OS X Mavericks.app/Contents/SharedSupport/InstallESD.dmg)= 6e3b5d13ee73186945197b040ad44378b0a7af58

Oct 22, 2013 9:25 PM in response to meadowsoft

In my case i was having a problen with one Ram dimm, i have 8GB of Ram, i used a tho programs to check my Ram (Rember & memtest) and imediatly y found the bad dimm, i uninstalled and i was able to install Maveriks with no problem at all, in my case the bad Ram was the problem.


Rember link

http://www.kelleycomputing.net/Rember/


Memtest link:

http://osxdaily.com/2011/05/03/memtest-mac-ram-test/


Hope this help.

JC

Oct 23, 2013 1:43 AM in response to meadowsoft

Okay - this will probably sound stupid, but I cannot find an "App Folder" on my iMac.


I have tried to download Mavericks... it started and then nothing happened. Maybe it's there, but I can't find it. I tried again - went to the App Store, clicked on Upgrade and then Install App... and nothing happens.


Maybe it did download but is sitting in the App Folder waiting to be installed?


HELP!

Can't Verify OSX Mavericks Download

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