That won't brick your OS X installation. Just boot from external drive and fix t... | Hacker News

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super_mario on Sept 10, 2015 | parent | context | favorite | on: OS X El Capitan GM Candidate available

That won't brick your OS X installation. Just boot from external drive and fix the permissions. It's not really that hard, and there is even a recovery partition exactly for problems like that.

jakobegger on Sept 10, 2015 [–]

Yep, the recovery partition is also a pretty great feature. But it's even better if you never need it!

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