36 Replies Latest reply on Apr 21, 2017 2:41 PM by jeromiec83223024

    Downloaded installer corruptedI

    JiJoBoJaJa

      OSX version: 10.10.5  Mac Pro

      Safari version: 10.0.3

      Currently installed Flash player: 24.0.0.194

       

      I've attempted to download and install the latest update multiple times.  Every single time it says the file is corrupted and should be ejected and does so without installing. 

       

      What should I do?  Is it possible the file on the server is corrupted?  Is my setup somehow interfering?   There is no stored website data in safari or Flash in all the possible locations I could find to check and delete.

        • 1. Re: Downloaded installer corruptedI
          Colin Holgate MVP & Adobe Community Professional

          I tried the current one, and the DMG mounted ok. It's the one here:

           

          Adobe Flash Player Install for all versions

          • 2. Re: Downloaded installer corruptedI
            JiJoBoJaJa Level 1

            Thanks for the reply.  Tried that link and same result.  Attached screenshot of error.Screen Shot 2017-02-21 at 12.39.57 PM.png

             

            Any ideas on what's causing this?

            • 3. Re: Downloaded installer corruptedI
              Colin Holgate MVP & Adobe Community Professional

              Yes. I think that under Yosemite there was an oddness where if you had not given permission to download apps from places other than the App Store, a DMG might seem to be damaged.

               

              Go into System Preferences, Security & Privacy, General, and allow it to download from anywhere.

               

              Here's a picture: osx-yosemite-security-prefs.png

              • 4. Re: Downloaded installer corruptedI
                m_vargas Adobe Employee

                Hi,

                 

                We've not heard any widespread reports on this, so it's possible it's something with/on your system.

                 

                • What are your settings in System Preferences > Security & Privacy > General > Allow apps to download from?
                • From where are you downloading the installer file? Adobe site, or elsewhere?
                • Verify the file is signed by Adobe:
                  • Mount the DMG image
                  • Launch Terminal
                  • in terminal type: codesign -vvd <Path to Adobe Flash Player.app>
                    • e.g. codesign -vvd codesign -vvd /Volumes/Adobe\ Flash\ Player\ Installer/Install\ Adobe\ Flash\ Player.app
                    • copy and paste the results
                • Verify the sha256 hash value of the file:
                    • In Terminal: shasum -a 256 <path to>/AdobeFlashPlayer_24_ast_install.dmg
                    • copy and paste the results

                 

                --

                Maria

                • 5. Re: Downloaded installer corruptedI
                  JiJoBoJaJa Level 1

                  Thanks to both of you.

                   

                  Will this change not make my computer more vulnerable?

                  • 6. Re: Downloaded installer corruptedI
                    JiJoBoJaJa Level 1

                    Tried what you suggested and no change.  Still get the same error message.

                    • 7. Re: Downloaded installer corruptedI
                      JiJoBoJaJa Level 1

                      correction:  Went back to make sure the Security & Privacy change had taken effect and it was still set to Mac App Store and identified developers.  Not sure why it didnt' take.  Got a bunch of warnings that my computer would initiate a nuclear explosion if I changed that setting.

                      • 8. Re: Downloaded installer corruptedI
                        JiJoBoJaJa Level 1

                        It's resetting itself after I attempt to open the flash DMG.  Very strange.  So it would appear that is the issue.

                         

                        How to fix if my computer won't allow me to turn off that setting?  It allows it but it just doesn't stick.

                        • 9. Re: Downloaded installer corruptedI
                          m_vargas Adobe Employee

                          Hi JiJoBoJaJa ,

                           

                          Please provide the information I previously requested (on Feb 21).

                           

                          Thank you.

                           

                          --

                          Maria

                          • 10. Re: Downloaded installer corruptedI
                            JiJoBoJaJa Level 1

                            Hello Maria,

                             

                            Thanks for your response.  Sorry I missed that.  The forums must've been collapsed.

                             

                             

                            • What are your settings in System Preferences > Security & Privacy > General > Allow apps to download from?

                            "Mac App Store and identified developers."  I tried changing this to "Anywhere" but it keeps automatically reverting back to "Mac App Store and identified developers" without me changing it back.

                             

                             

                            • From where are you downloading the installer file? Adobe site, or elsewhere?

                            get3.adobe.com/flashplayer/update/osx/ with https:// at the beginning.  Can't type that here without it turning to a link.

                             

                             

                            • Verify the file is signed by Adobe:
                              • Mount the DMG image
                              • Launch Terminal
                              • in terminal type: codesign -vvd <Path to Adobe Flash Player.app>
                                • e.g. codesign -vvd codesign -vvd /Volumes/Adobe\ Flash\ Player\ Installer/Install\ Adobe\ Flash\ Player.app
                                • copy and paste the results

                            codesign -vvd /Users/<user_name>/Downloads/AdobeFlashPlayer_25au_ast_install.dmg

                            /Users/<user_name>/Downloads/AdobeFlashPlayer_25au_ast_install.dmg: code object is not signed at all

                             

                            Where <user_name> is my user name on my computer

                             

                             

                             

                            • Verify the sha256 hash value of the file:
                              • In Terminal: shasum -a 256 <path to>/AdobeFlashPlayer_24_ast_install.dmg
                              • copy and paste the results

                             

                            shasum -a 256 /Users/<user_name>/Downloads/AdobeFlashPlayer_25au_ast_install.dmg

                            2637a88481aea5f9709d8f7a7b0227421f5688ba92258f4b049d5f5e665c8900  /Users/<user_name>/Downloads/AdobeFlashPlayer_25au_ast_install.dmg

                            • 11. Re: Downloaded installer corruptedI
                              m_vargas Adobe Employee

                              The signature information is in the .app file, not the DMG.  Please read through my instructions again, mount the DMG, and then obtain the signature information on the .app file.

                              • 12. Re: Downloaded installer corruptedI
                                Colin Holgate MVP & Adobe Community Professional

                                There is a recent issue that shouldn't be showing on your system, but maybe the same solution will work:

                                 

                                Open the DMG.

                                Right-Click on Install Adobe Flash Player and choose Show Contents.

                                Open the folder Contents, then MacOS.

                                Double-click on the file Adobe Flash Player Install Manager.

                                 

                                In later systems those steps are a way around the apparent installer corruption. It may not be what will fix it for you, but may as well try.

                                • 13. Re: Downloaded installer corruptedI
                                  JiJoBoJaJa Level 1

                                  Sorry m_vargas I guess I don't know what it means to mount the DMG.  I assumed it meant double click the dmg which is what I did then got info on the app and copy pasted the location.  I can't double click "Install Adobe Flash Player.app" because it gives me the attached error.  Was the source of the original problem.  So I can only assume I'm not understanding the steps because I don't know what I'm doing.  Will stab around and re-read your directions another half dozen times in the hopes I can intuit what you mean.  I do appreciate the help I just have absolutely no clue what I'm doing here.  Problems are so rare on my Mac that I've got very little knowledge of how things work.

                                   

                                  Screen Shot 2017-03-29 at 12.34.26 AM.png

                                   

                                   

                                  Colin Holgate thanks for your reply.  I gave your suggestion a try.  I receive the same error as above.

                                  • 14. Re: Downloaded installer corruptedI
                                    JiJoBoJaJa Level 1

                                    OOOOHHHHH, wait a minute, do you mean the already installed Flash Player app?  Not the one I'm having trouble installing?    Just occurred to me that might be what you're talking about.  You didn't specifically say that and since context was about the installer I thought it was the app in that installer.

                                    • 15. Re: Downloaded installer corruptedI
                                      JiJoBoJaJa Level 1

                                      Hello m_vargas

                                       

                                      So this time I just copied and pasted the path directly from your instructions and this is what came back:

                                       

                                      ... codesign -vvd /Volumes/Adobe\ Flash\ Player\ Installer/Install\ Adobe\ Flash\ Player.app

                                      Executable=/Volumes/Adobe Flash Player Installer/Install Adobe Flash Player.app/Contents/MacOS/Install Adobe Flash Player

                                      Identifier=com.adobe.InstallAdobeFlashPlayer

                                      Format=bundle with Mach-O thin (i386)

                                      CodeDirectory v=20200 size=4737 flags=0x0(none) hashes=229+3 location=embedded

                                      Signature size=8524

                                      Authority=Developer ID Application: Adobe Systems, Inc.

                                      Authority=Developer ID Certification Authority

                                      Authority=Apple Root CA

                                      Timestamp=Dec 2, 2016, 3:40:13 AM

                                      Info.plist entries=22

                                      TeamIdentifier=JQ525L2MZD

                                      Sealed Resources version=2 rules=12 files=80

                                      Internal requirements count=1 size=196

                                      • 16. Re: Downloaded installer corruptedI
                                        JiJoBoJaJa Level 1

                                        Still having the issue.

                                        • 17. Re: Downloaded installer corruptedI
                                          m_vargas Adobe Employee

                                          Hi JiJoBoJaJa

                                           

                                          Sorry, I missed your post.

                                           

                                          The codesign command indicates the file is correctly signed.  We don't have any widespread complaints on this (yours is the only one), so I suspect this is an issue with your system.  It's also odd that the Gatekeeper setting is not sticking when you set it to Anywhere.  While Apple will display all sorts of warnings when you select this, you should be able to select it and have it stick.  When you select 'Anywhere' does a confirmation window display where you confirm 'Allow From Anywhere'?

                                           

                                           

                                          Alternatively, can you try the offline installer posted at the bottom of the Installation problems | Flash Player | Mac page, in the 'Still having problems' section?

                                           

                                          --

                                          Maria

                                          • 18. Re: Downloaded installer corruptedI
                                            JiJoBoJaJa Level 1

                                            Thank you for the prompt response.  I'm sure my lag in response has contributed to you missing it in the first place.  I'm so busy it takes me a while to circle back to such stuff.

                                             

                                            Tried your suggestion of downloading from the "Still having problems" section and same result.  See attached error message I received.

                                             

                                            Screen Shot 2017-04-06 at 2.38.37 PM.png

                                             

                                            Will try resetting the Gatekeeper setting again and report back.

                                             

                                            Previously I was able to download the installer using my iPad and parking it to DropBox then installing from my Dropbox folder on my Mac Pro but now the mobile site kicks in before I can bypass it and tells me my web browser cannot utilize flash.  So the mobile site functionality is waylaying me and I saw no obvious way to view classic site on the iPad.

                                            • 19. Re: Downloaded installer corruptedI
                                              JiJoBoJaJa Level 1

                                              Still unable to get "Anywhere" to stick.  It seems to be a problem with the way the file is downloaded.  My current version of Safari is  10.1.  As previously mentioned I'm running Yosemite 10.10.5.  I've not been having any issues with any other downloaded files lately.

                                              • 20. Re: Downloaded installer corruptedI
                                                m_vargas Adobe Employee

                                                Have you tried downloading the file using a different browser?  I'm not sure that's going to work, but it's worth a try.  The fact that no one else is reporting this and selecting 'Anywhere' is not sticking does point to an issue with your system.  I would recommend contacting Apple support for further assistance.

                                                • 21. Re: Downloaded installer corruptedI
                                                  JiJoBoJaJa Level 1

                                                  I will try that.  Thanks for the suggestion.

                                                   

                                                  Hmmm okay.  Thanks for your help.

                                                  • 22. Re: Downloaded installer corruptedI
                                                    JiJoBoJaJa Level 1

                                                    So I tried downloading with Opera (only other browser I have on my computer) and same result.  I believe this narrows it to an issue with either the way the installer is downloading, or the way my computer is reading the installer.  I was able to install previously by downloading the DMG file to Dropbox first then open Dropbox folder and install from the DMG downloaded to Dropbox.  So I wonder if it's somehow a network issue.

                                                     

                                                    Is there any way I can download the DMG from an Adobe page that doesn't require flash to view? 

                                                    • 23. Re: Downloaded installer corruptedI
                                                      m_vargas Adobe Employee

                                                      The Adobe Flash Player download page doesn't require Flash to view the download page.  If there was an issue with the installer itself we'd be receiving numerous complaints and we're not, so this indicates an issue with your system, not the installer itself, however, I can forward this to the team that handles the download page.

                                                      • 24. Re: Downloaded installer corruptedI
                                                        jeromiec83223024 Adobe Employee

                                                        The error message above isn't actually the one you would get from the MacOS "where do you want to install files from" security setting, but it looks a lot like it, so I get the confusion.  That isn't the issue, and it makes sense that those steps didn't help.

                                                         

                                                        What the error message is saying is that the file that's getting stored on your machine is corrupt.  We serve about ~2.5 billion installs/month off a world-class, globally distributed content distribution network.

                                                         

                                                        I'm pretty confident that when the bits leave the source and hit the wire that they're right, because complaints from even 1% of that number would hopelessly overwhelm our ability to respond, and this is the only active complaint I'm aware of.

                                                         

                                                        We send the bits to you over a connection with TLS (transport layer security) enabled, which guarantees with a high degree of certainty that those bits are authentic and unmodified at arrival.  Unless a nation-state has decided to mess with you specifically, you're in pretty good shape on that front.

                                                         

                                                        If we rule out the source and transmission with a reasonable degree of confidence, then we have to look at what happens to those bits once they arrive at the destination (i.e. your machine).

                                                         

                                                        The bits get stored to the local disk, but in this instance, the operating system attempts to open them (a .dmg file is basically a fancy compressed package, like a .zip file), but calculates a hash of the bits in the file, and compares it with the hash that was stored in the header of the file when it was created, and it sees that they don't match.  It then throws the message that you're seeing, which is effectively, "the bits in the file you have don't match the bits that should be there".

                                                         

                                                        Following that logic, here are the things that come to mind:

                                                        1. Your disk is full, and the file gets truncated at the point at which you completely run out of space.  Since only part of the file gets stored, it's never going to match the original. 

                                                          To confirm, look in Finder > Go > Computer > Macintosh HD (or whatever you named it)
                                                          Choose File > Get Info, and then look at Free Space.  If you don't have > 100MB of disk space free, you're running pretty low, and might have better success if you freed some space up.

                                                        2. The filesystem is corrupted.  The filesystem is basically a little database on the physical disk that keeps track of where individual files start and end.  It does get messed up from time to time, and this could cause things to be written or read inconsistently.  Keep reading.
                                                        3. The disk has a physical problem.  There are one or more areas on the disk that are physically damaged, and this file is getting repeatedly written/read from the affected location, or the actual read/write heads are damaged (they come unglued sometimes, etc).

                                                        If you've confirmed that you have free space, then you probably want to rule out problems 2 and 3 next.  The problem is, they're hard to differentiate, and if you have a physical problem that's blossoming from "being a little flaky" into "catastrophic failure", you probably want to grab any important data off the disk before you give it a good workout.  If you don't already have those irreplaceable pictures and secret documents backed up, definitely do that now.  Disk recovery services are crazy expensive.

                                                         

                                                        Once your backups are in order, MacOS provides a nice utility for making sure the disk is in a consistent state.

                                                         

                                                        See the "Try Disk Utility" section:

                                                        https://support.apple.com/en-us/HT203176

                                                         

                                                        While you're there, choose Repair Filesystem Permissions (Verify will frequently return clean, but then Repair will still fix a bunch of problems).

                                                         

                                                        Once you've identified and corrected any problems, drag all of the copies of the Flash Player installer (the DMG files) into the trash, empty it, and reboot the machine for good measure.

                                                         

                                                        At that point, download a new copy of the installer from here:

                                                        https://get.adobe.com/flashplayer/

                                                         

                                                        If the install still throws a corrupted file error, please let us know, but I think that will get you unstuck.

                                                        • 25. Re: Downloaded installer corruptedI
                                                          JiJoBoJaJa Level 1

                                                          Sorry mvargas but on both my iPad and phone I'm unable to download the installer because it says "this page requires flash to view."  I'm paraphrasing as I don't recall the exact message but that's the gist.  I can send you a screenshot from both.  If I wasn't receiving that message I'd be able to continue installing by downloading using my phone, park the download on DropBox then install the Flash update installer DMG from my Dropbox folder.  That process has worked in the past for me.  It doesn't any more because the update download page says it requires flash to view.

                                                           

                                                          IMG_0487.PNG

                                                          • 26. Re: Downloaded installer corruptedI
                                                            JiJoBoJaJa Level 1

                                                            Thank you jeromiec83223024.  Sorry to you and Mvargas for the delayed reply.  Was out of town on business. 

                                                             

                                                            I will give your suggestions a try.  Sounds very extensive and intensive.  Since I was able to install previously by downloading the update installer to Dropbox from my phone that makes me think there's some issue with my network.  Not sure how but I guess would be easily remedied by plugging the cable running to the modem directly into my computer and skipping the LAN hub.  Not sure why this would matter though.

                                                            • 27. Re: Downloaded installer corruptedI
                                                              JiJoBoJaJa Level 1

                                                              To get more specific jeromiec83223024:

                                                               

                                                              re: available disc space - I'm using 226.25GB out of 999.35GB.  Not an issue there.

                                                               

                                                              re: #2 and #3 - I recently (within a couple months) moved my OS and storage to new drives.  I had the problem with the flash installer prior to this so it's not related to that.  I mention the new drives because there is no physical problem with the discs.  In the process of installing software and moving files to the new drive there was cause for making sure the volumes were ok prior to use.

                                                               

                                                              Nevertheless I ran through your suggestions.  I was unable to start in recovery mode.  I hold down CMD+R but it keeps restarting due to a problem.  So I skipped that but was able to make use of fsck after starting in single user mode.  It went through the checks and everything came back A-OK.  So that appears to rule out #2 and #3 but the inability to start in recovery mode is a bit concerning.  I was able to start in safe mode without an issue.

                                                               

                                                              checking to see if I can install now that I've run fsck.  Will report back.

                                                              • 28. Re: Downloaded installer corruptedI
                                                                JiJoBoJaJa Level 1

                                                                That did not change the result.  I'm able to double click the DMG.  The folder opens I double click to install and still get the same error message with the only option to eject.

                                                                • 29. Re: Downloaded installer corruptedI
                                                                  JiJoBoJaJa Level 1

                                                                  FYI - I tried bypassing the LAN hub so I was connected to the internet directly.  No change.

                                                                  • 30. Re: Downloaded installer corruptedI
                                                                    m_vargas Adobe Employee

                                                                    HI JiJoBoJaJa

                                                                     

                                                                    The screenshot you posted ins't from https://get.adobe.com/flashplayer, which is the Flash Player download page.  The Flash Player download page doesn't contain Adobe Spark advertisement. Furthermore, if the download page required Flash content it would result in users who do not have Flash installed to not be able to download Flash Player installer.


                                                                    What's happening on your mobile device is that the page is being redirected to a different page.  For example, on my Android device, using Google Chrome, attempting to access https://get.adobe.com/flashplayer is being redirected to www.adobe.com/m/flashplayer/android.html.  I'm not familiar with this page, but the messaging makes sense as Flash Player is not supported on any mobile device (Android, Blackberry, iOS, Windows Phone, etc).

                                                                     

                                                                    If you want to use your mobile device to download Flash Player installer for a supported platform please go to https://get.adobe.com/flashplayer/otherversions.  You'll be prompted to select the OS and the Flash Player type (ActiveX, NPAPI, or PPAPI) installer to download.

                                                                     

                                                                    --

                                                                    Maria

                                                                    • 31. Re: Downloaded installer corruptedI
                                                                      JiJoBoJaJa Level 1

                                                                      Thank you m_vargas.  I was able to download, via mobile device via the link you sent, to Dropbox.  Subsequently I was able to install that Flash update from Dropbox on my Mac Pro.  So this method continues to work.  It's obvious the issue is somewhere in the download process on my Mac Pro.  Until I fix that issue I hope that "other versions" link will be available so I can continue to update via that method until I get it fixed.

                                                                       

                                                                      Thanks for your help.  Probably safe to call this resolved.

                                                                      • 32. Re: Downloaded installer corruptedI
                                                                        jeromiec83223024 Adobe Employee

                                                                        Out of curiosity, does this problem also happen if you download the files from the other versions link using Chrome?  My sense based on what you're seeing is that it's going to end up being Safari specific.

                                                                        • 33. Re: Downloaded installer corruptedI
                                                                          JiJoBoJaJa Level 1

                                                                          I don't have chrome but I suspect you're right.  I did notice when running disc repair (not in recovery mode) that many safari errors exist and some say they cannot be fixed.

                                                                           

                                                                          I realize we're well outside the purview of Adobe specific help here but is there a location to download an installation of just safari?  All links i can find recommend reinstalling your OS which I think is just insane when all I want to do is fix issues within safari.  Not sure why I'd have to reinstall my entire OS if all I want to do is reinstall safari.  I realize it may be THAT integrated into the OS but it seems there still should be an option to just update broken portions, somehow.

                                                                           

                                                                          EDIT: I do have Opera and that ends in the same result.  Had tried that pretty early on.

                                                                          • 34. Re: Downloaded installer corruptedI
                                                                            jeromiec83223024 Adobe Employee

                                                                            Chrome is more interesting, because it's very encapsulated and they roll most of the logic themselves.  It may or may not work, but would give a good sense of differentiation.  I've seen other problems with Chrome where third party software leave it in a bad state (users of Matlab and Safari will sometimes run into issues where Safari starts downloading everything with a Matlab extension, etc.).  I don't know enough about the internal implementation of Safari to know why that happens, but Chrome and Safari are the two extremes of really tied to the operating system and isolated to the extent possible.  It's an interesting comparison.

                                                                             

                                                                            Safari and the OS are pretty tightly coupled.  I think that's why they update synchronously these days.  I don't think you get Safari without the OS.  You could try a factory reset on Safari, but I think you're really looking at a wipe and reinstall of the OS.  if you've got enough removable disk space, you could do a time machine backup, and then just make a separate copy of your user and applications folders, wipe and reinstall the OS, then dump your user and applications folders back over the top.  I've had good success with that, but worst case, you roll back to your time machine backup if it all goes wrong (or bite the bullet and just reinstall your apps manually).

                                                                             

                                                                            Someone at Apple might have a more surgical solution, but I'm not aware of one.  There are a number of "reset Safari" tutorials online, but I can't vouch for them (and am a little suspicious of the efficacy of a couple that I looked at.

                                                                            • 35. Re: Downloaded installer corruptedI
                                                                              JiJoBoJaJa Level 1

                                                                              Thanks again. 

                                                                               

                                                                              When I updated my drives I started noticing some issues elsewhere which is kind of making want to just do a clean OS install and reset everything.  I think it might clear up a lot of these issues.  But I really don't want to do that and avoiding that at all costs because of all the inane questions you have to answer when setting things back up, endless entering passwords for apple ID, sitting waiting staring at the screen while software installs, and the countless restarts.  So painful in a "watch pain dry" kind of way.  And the settings are never the same as they were so you're basically starting from scratch again.  And inevitably you find some software no longer works despite it having functioned before because it was grandfathered in via numerous OS updates.  I'm still using my copy of Photoshop CS4 because I don't want to be on a subscription plan for example.  I prefer to have the software on my computer and pay one price up front.  I suspect that'll stop working if I have to reinstall it.

                                                                               

                                                                              Super close to having no choice though.   LOL

                                                                              • 36. Re: Downloaded installer corruptedI
                                                                                jeromiec83223024 Adobe Employee

                                                                                Yeah, I hear you.  My sense is that your symptoms are weird enough that it's something really low level.  I've never run across this, and I break machines for a living.

                                                                                 

                                                                                If it were me, I'd bite the bullet and do a clean wipe and reinstall.  It's a waste of an evening, but by far the clearest path to success.

                                                                                 

                                                                                I'm still a little mystified as to how you ended up in that state in the first place without an underlying storage problem or something.  We have a large enough user base, and I've been doing this stuff for long enough that I'm always pretty surprised when a really oddball set of symptoms comes along.

                                                                                 

                                                                                There *is* malware that targets Mac, and while there's no smoking gun, I always start to get a little suspicious when I see unexplainable, hinky behavior.   It if was my machine, I'd personally get some peace of mind knowing that unless it was something really sophisticated that persists across installs, I've wiped it completely and minimized any risk that I might still be sharing my personal data with a bad actor.

                                                                                 

                                                                                Password resets across your important accounts (banking, healthcare, email, etc.) once you're back to a clean state might also be a good precaution.  It's a good excuse to make the jump to using a password manager and unique passwords for your important accounts, if you're not already.. and/or finding a backup service that you like.  There are a lot of reasonably priced hybrid online/offline backup services, in addition to time machine and iCloud, etc.  I just try to make the most of those events and use them to get things cleaned up.