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Cannot install iWork and dyld_shared_cache issue

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I installed 10.8.2 on the system in signature. Everything works fine, the OS feels even smoother than Lion.

I have this problem though when I install some Apple software, like Aperture or iLife or iWork. At the end of the installation procedure, many things happen at once, like, for instance

- any application won't open

- mission control, launchpad nor notification center won't work

- desktop background becomes solid gray

- dock disappears


Moreover, when I reboot the (now unusable) system, the boot hangs before the start of the graphics module and there's only one way I found to fix this (after several attempts):

- boot in safe mode, then delete caches and rebuild kernelcache

- reboot ignoring caches, than rebuild prelinked cache

- reboot without flags


After restoring the boot, the system works perfectly again, but not iWork. If I open any iWork application, a message appears: "Files that iWork needs are missing. To restore the missing files, use the iWork installer to reinstall iWork."

Of course if I try to reinstall the suite, the system would break again in the same way as before.


So I have two questions:

- Did some of you have this issue before, or is the first time you all heard about this?

- Do you have any idea to solve this?


Some technical notes that might help you:

From system.log, I understand applications won't open because of launchd error "catch_mach_exception_raise_state_identity()" and then Segmentation fault: 11 . This happens for any new PID the OS tries to start.

From install.log there are some dyld_shared_cache errors. Apparently, iWork installer tried to update dyld_shared update_dyld_shared_cache -overlay /var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/Cleanup At Startup/PKInstallSandboxManager/1.sandbox/Root" but, for some unknown reason, it fails. So, when it tries to move the update cache, it reports this on the log "Failed to move active dyld cache file /var/db/dyld/dyld_shared_cache_x86_64 to /var/run: No such file or directory". Any idea why the installer couldn't update the dyld_shared_cache?

Now the dyld_shared is in the correct path and works like charm, but of course is the previous version, before the install of iWork. That is certainly causing the "iWork: missing files" error from before.


Thanks in advance for your help,


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