I downloaded the latest flash player from the abode website (for mac, safari, english). Download is fine. Installation proceeds to about 50% completion and then terminates with a "General Installation Error". Here's the configuration:
Mac intel core 2 duo 2.26 GHz
I downloaded the flash player uninstaller, and it reported a successful uninstall. Also checked for directories in /Library/Internet Plugins and the (Disabled) folder. No flash player components left.
Checked pop-up blocker (it's not set), system preferences (download apps from any source is checked). Also disabled norton auto-protect. Install still fails.
I'm out of ideas. Any suggestions would be greatly appreciated.
How i solved:
When I tried the excellent suggested solution, I received the error message:
2013-02-11 16:09:05.968 Adobe Flash Player Install Manager[1169:707] Unable to write data to file '/var/root/Library/Preferences/Macromedia/Flash Player/install_vector.txt'.
Once I had created the missing directory by typing the two commands:
"sudo mkdir /var/root/Library/Preferences/Macromedia" and
"sudo mkdir /var/root/Library/Preferences/Macromedia/Flash Player"
then running the installer from the command line using sudo, as suggested, did work.
Variant that worked for me:
$ cd ~/Downloads/
$ hdiutil mount AdobeFlashPlayerInstaller_11_aih.dmg
$ ls /Volumes/Adobe\ Flash\ Player\ Installer/Install\ Adobe\ Flash\ Player.app/Contents/MacOS/Install\ Adobe\ Flash\ Player
<the above step was to verify the location of the installer, to use in the next step>
$ sudo /Volumes/Adobe\ Flash\ Player\ Installer/Install\ Adobe\ Flash\ Player.app/Contents/MacOS/Install\ Adobe\ Flash\ Player
$ hdiutil unmount /Volumes/Adobe\ Flash\ Player\ Installer/
Thanks all for getting me going in the right direction.
This is what I get. It still won't install.
Last login: Sat Oct 12 11:29:26 on ttys000
Curts-iMac:~ Coz$ cd desktop
Curts-iMac:desktop Coz$ sudo ./Install\ Adobe\ Flash\ Player.app/Contents/MacOS/Install\ Adobe\ Flash\ Player
2013-10-12 11:30:36.957 Adobe Flash Player Install Manager[6300:707] Unexpected umask value for process: 0
2013-10-12 11:30:37.783 Adobe Flash Player Install Manager[6300:707] Install failed with error code: 1.
I get this same error...
Please let me know if you get a answer.
2013-10-15 23:32:33.863 Adobe Flash Player Install Manager[990:707] Unexpected umask value for process: 0
2013-10-15 23:32:34.717 Adobe Flash Player Install Manager[990:707] Install failed with error code: 1.
MacPro 2 x 3 GHz Quad-Core Intel Xeon
2 GB 800 MHz DDR2 FB-DIMM ECC
me getting same error
2013-10-16 15:10:26.241 Adobe Flash Player Install Manager[641:707] Unexpected umask value for process: 0
2013-10-16 15:10:27.119 Adobe Flash Player Install Manager[641:707] Install failed with error code: 1.
I did all this (full Flash uninstall, re-install 10.8.5 plus Supplemental, verify hidden mach_kernal at root level, Terminal Reinstall attempt, etc.) with the same result of hanging at 50% on install w/General Install Error.
Then, from a post under General Error Message when Installing Flash Player on Mac:
Having this problem on a fresh install of 10.8.2.
Thanks to @mrdredre, the solution for me was to go to System Preferences, Security & Privacy, General tab, Allow applications downloaded from - make it "Anywhere".
After doing that, I re-ran the installer and it worked just fine.
Crazy that Adobe would release this new installer w/o having it signed so it works without changing this setting.
Switched to Anywhere and everythig installed perfectly.
Afterwards, be sure to switch back to Allow Mac App Store & ID'ed developers.
MBP 2.2GHz i7
OSX 10.8.5 w/supplement