meadowsoft
Level 1 (0 points)

Q: 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.

 

Screen Shot 2013-10-22 at 5.48.43 PM.png

Posted on Oct 22, 2013 2:57 PM

by meadowsoft,Solvedanswer
meadowsoft meadowsoft
Level 1 (0 points)
A:

Just an update from my end (original poster).  Tried again last night, disabled sleep mode during the download. Download still only took a few minutes since I have Comcast Extreme 105.  But for some reason, this time, the installation was successful.  Writing this on my new 10.9 installation.

 

I also ran Memtest as another poster suggested.  My onboard RAM is full of errors.  I am actually bringing it into the Apple store to be sent out for repairs at the end of the week.  I am positive that this has something to do with the download.  Something with whatever verification or ram-caching routine they use as part of that step in the installation fails due to bad memory.  So if you suspect you have bad memory, then just run Memest, get a report, and if you have failures, address those issues before you reinstall. 

 

I wish everyone good luck with their installs, and I really hope that Apple Support is paying attention to this thread.  This is a serious, unaddressed issue by their KB articles and support forums.  And anyone with a Mac under warranty, particularly those with Retina Pros like mine with onboard memory, are going to need a service call to fix the memory prior to installing OSX 10.9.

Posted on Oct 27, 2013 3:09 PM

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meadowsoft

Q: Can't Verify OSX Mavericks Download

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  • by MacJapan,

    MacJapan MacJapan Dec 3, 2013 11:30 PM in response to Saganic0
    Level 1 (0 points)
    Dec 3, 2013 11:30 PM in response to Saganic0

    Saganic0's soluton worked for me after the RAM and date solutons failed to make a difference. Thanks for sharing, I appreciate it.

  • by Juankrdnas,

    Juankrdnas Juankrdnas Dec 7, 2013 11:48 AM in response to meadowsoft
    Level 1 (0 points)
    Dec 7, 2013 11:48 AM in response to meadowsoft

    Well Ok, here is some advice to the ppl, i have a computer store and i been trying a lot at the same time with differents apple laptops, and I have a answer, the installer have some serius issues with that error, because I downloaded a couple times the installer, deleted and downloaded again, so i was unable to install on one 13'' laptop, getting the FERIFIED error, what I did was install 10.6, upgrade to 10.6.8 then install the copy of 10.9 that I made on the USB by Diskmaker X, and worked nice, I tried the same USB with another laptop, 15'' and no problem, worked fine, in another 15'' Didn't work, so I tried with the 10.6 and didnt work because that laptop doesnt accept that OSX, so I downloaded 10.8.5, make a usb, I tried to install and I get an error, then tried with the 10.9 usb and worked fine!

  • by petermac87,

    petermac87 petermac87 Dec 7, 2013 11:54 AM in response to Juankrdnas
    Level 5 (7,402 points)
    Dec 7, 2013 11:54 AM in response to Juankrdnas

    I downloaded the installer once and have installed it on my five acs without any issues, so it is not a universal issue. I downloaded it over a high speed connection on WiFi. I then transfered it to a USB Flash Drive to tranfere it to the other computers.

     

    Cheers

     

    Pete

  • by tokketto,

    tokketto tokketto Feb 9, 2014 9:52 PM in response to MacJapan
    Level 1 (0 points)
    Feb 9, 2014 9:52 PM in response to MacJapan

    I found a much easier one: http://aaronkondziela.com/2013/11/this-copy-of-the-install-os-x-mavericks-applic ation-cant-be-verified-it-may-have-been-corrupted-or-tampered-with-during-downlo ading/comment-page-1/#comment-552

     

    In my case I was running a clean install so I didn't know how to set the date just like Apple support suggests.

    After knowing the command syntax date “+%m%d%H%M%Y.%S” it was a blast.

     

    Really...a 20 second fix after 2 hours of search

     

    Hope it helps.

    Ciao

  • by Aris333,

    Aris333 Aris333 Mar 12, 2014 2:58 AM in response to meadowsoft
    Level 1 (0 points)
    Mar 12, 2014 2:58 AM in response to meadowsoft

    Changing the date does the trick just fine! Thanks!!!

  • by Tork Lugnutz,

    Tork Lugnutz Tork Lugnutz Sep 29, 2014 12:06 PM in response to meadowsoft
    Level 1 (0 points)
    Sep 29, 2014 12:06 PM in response to meadowsoft

    I solved the problem in this manner:

    I left iTunes Radio playing while the download was in process, and it finally produced a usable file.

    I have downloaded the file 10+ times without success previously.

     

    I am using an iMac over WiFi, and I tried the download over two different ISPs.

  • by Emorr,

    Emorr Emorr Oct 3, 2014 1:50 AM in response to meadowsoft
    Level 1 (0 points)
    Oct 3, 2014 1:50 AM in response to meadowsoft

    Same problem here !! So many issues just to install the OS

    I should just go back to using Windows.....

  • by Csound1,

    Csound1 Csound1 Oct 3, 2014 3:13 AM in response to Emorr
    Level 9 (50,302 points)
    Desktops
    Oct 3, 2014 3:13 AM in response to Emorr

    Good luck with that.

  • by petermac87,

    petermac87 petermac87 Oct 3, 2014 3:43 AM in response to Emorr
    Level 5 (7,402 points)
    Oct 3, 2014 3:43 AM in response to Emorr

    Emorr wrote:

     

    Same problem here !! So many issues just to install the OS

    I should just go back to using Windows.....

    Probably for the best.

     

    Good Luck

     

    Pete

  • by batcavecoders,

    batcavecoders batcavecoders Oct 11, 2014 11:02 AM in response to petermac87
    Level 1 (0 points)
    Oct 11, 2014 11:02 AM in response to petermac87

    The problem is the date/time, if it is incorrect you will have this problem every time

    to fix:

    date ddmmhhmmyyyy

     

    Source:http://blog.mconserv.net/2013/10/install-os-x-mavericks-application-cant.html

  • by Tork Lugnutz,

    Tork Lugnutz Tork Lugnutz Oct 19, 2014 11:24 AM in response to batcavecoders
    Level 1 (0 points)
    Oct 19, 2014 11:24 AM in response to batcavecoders

    The date/time is only one possible cause. In my case, the date command was producing the correct time, date and time zone. While I was finally able to get Mavericks installed last month, I ran into exactly the same download problems with Yosemite.

    On my other computer, I used the OS X installer download to create a bootable USB installer drive. This installer also failed to work on the problem machine. It did however load the 10.10 Utility partition, so I was able to repartition the drive, reformat it and download a copy of Yosemite from this clean environment. Again, the installer failed to download multiple times, regardless of ethernet vs wi-fi, no screensaver or sleep active or user input. I even tried installing to an external drive to rule out the hard drive in the machine. Still no success.

    The installer Log gave an error about unable to verify InstallESD.dmg and there was an error about verification failure from hdiutil.

    This morning, I pulled the 8gb Crucial branded RAM upgrade replaced with the old RAM shipped by Apple. Presto. Installer works fine, and I'm posting from the machine. I suspect the installer that would not verify on the USB drive will also now work to install.

    In the end, my failure was based upon faulty RAM.

    Note: I could not access the Apple diagnostic to test the RAM.

  • by zerofury,

    zerofury zerofury Apr 16, 2016 10:43 AM in response to batcavecoders
    Level 1 (8 points)
    Mac OS X
    Apr 16, 2016 10:43 AM in response to batcavecoders

    Did the date trick, didn't work, really angry its work for some of you and not others. *** is wrong, i cannot download 6gb each time it takes hours on my rubbish conection

     

    why is this happening?

  • by Eric Root,

    Eric Root Eric Root Apr 17, 2016 8:52 AM in response to zerofury
    Level 9 (70,250 points)
    iTunes
    Apr 17, 2016 8:52 AM in response to zerofury

    You might want to consider starting a new discussion. Since this one is marked solved, less people are likely to look at it. You can link to this one.

  • by Ryann McRain,

    Ryann McRain Ryann McRain May 13, 2016 3:33 PM in response to meadowsoft
    Level 1 (4 points)
    May 13, 2016 3:33 PM in response to meadowsoft

    Screen Shot 2016-05-14 at 0.30.33.png

    Just change your time preferences like I do it in this screenshot and then restart mavericks installer!

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