Missing Installer.app


hey everyone,

friend of mine trying install .pkg file , somehow unarchiver became default app use. told him uninstall unarchiver , tried locate installer.app set default, unable locate in mac hd/system/library/core services. running yosemite running mountain lion , assume that's should located. so, test, copied installer.app , told him place in folder. .pkg file recognized installer, not opened (see pic below)

[​img]

i'm assuming crashed because yosemite version won't run on mountain lion (maybe can confirm this). if that's case:

1) can tell me version runs on ml (maybe can check version have)?

2) since i'm not running ml, installer.app lion work (i have friend running lion on mac)?

3) noticed "system" has permissions use installer. have set same permission? if so, how do (can't add system via gui)?

side note, told him long ago needs hd use time machine backup hasn't gotten around it. think situation motivate him so.

many in advance help/info can provide.
 

nothing? no 1 can tell me version looking @ installer?
 


Forums Macs macOS Older OS X Versions OS X Mountain Lion (10.8)


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