Q: Internal HD has become read-only (error code -50)
Specs: Macbook Pro 13 Inch, late 2011, 4GB RAM, 2.4GHZ Intel Core i5 running El Capitan 10.11.1.
Today out of the blue my HD has become read-only (I think). I can access my files but cannot download anything, create new folders, or empty the trash - I get an error message referencing error code -50. I replaced the original HD just under a year ago with this: https://www.amazon.co.uk/gp/product/B00BHRWHNI/ref=oh_aui_detailpage_o05_s00?ie= UTF8&psc=1 and have had no problems with it up until now.
I have tried restarting and repairing the disk through terminal, neither of which worked. When I try to repair the disk through terminal I get the following error messages:
User differs on "private/etc/hosts", should be 0, user is 501.
Group differs on "private/etc/hosts", should be 0, group is 20.
Unable to set owner & group on "private/etc/hosts". Error 22: Invalid argument
Unable to set permissions on "private/etc/hosts". Error 22: Invalid argument
User differs on "private/var/db/displaypolicyd", should be 0, user is 244.
Group differs on "private/var/db/displaypolicyd", should be 0, group is 244.
Unable to set owner & group on "private/var/db/displaypolicyd". Error 22: Invalid argument
Unable to set permissions on "private/var/db/displaypolicyd". Error 22: Invalid argument
I'm not especially tech-savvy and have no idea what this means. Also I don't know if this is relevant but after checking activity monitor over the last few days there has been a process taking up massive amounts of CPU called ReportCrash.
Could anyone help me?
MacBook Pro, OS X El Capitan (10.11.1), Late 2011 model
Posted on Sep 27, 2016 3:22 PM