You should then get a new line ending in a dollar sign. If you get the percent sign, enter “sh” and press return. When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign ($) or a percent sign (%). If you can't satisfy yourself that these instructions are safe, don't follow them. If you question the safety of the procedure suggested here - which you should - search this site for other discussions in which it’s been followed without any report of damage. However, you need to be cautious about running any program at the behest of a stranger on a public message board. It does nothing but produce human-readable output. If it only boots in safe mode, proceed anyway.īelow are instructions to run a UNIX shell script. If the system is now running in safe mode and is bootable in normal mode, reboot as usual. Preferably, these steps should be taken while booted in “normal” mode. You may have started the computer in "safe" mode. The sequence is: copy, paste, paste again. Then paste some other text, which will have been copied automatically, back into a reply on this page. Here's a brief summary: Copy a line of text from this web page into a window in another application. The procedure will help to identify which such modifications you've installed, as well as some other aspects of the state of the system that may be pertinent. By a “system modification,” I mean software that affects the operation of other software - potentially for the worse. Third-party system modifications are a common cause of usability problems. There are ways to back up a computer that isn't fully functional. The backup is necessary on principle, not because of anything suggested in this comment. It changes nothing, for better or worse, and therefore will not, in itself, solve your problem. If you don't already have a current backup, back up all data before doing anything else.
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