El Capitan. iMac MK472LL / A. There are two users in the system (administrator) and guest entry.
So I tried. Does not work
sudo nvram SystemAudioVolume=%00 And add to the startup script, too
#!/bin/bash [ "z$1" == "zstop" ] && nvram SystemStartupSound=" " I check the values, they are assigned
iMac-ninazu:~ ninazu$ sudo nvram SystemAudioVolume SystemAudioVolume 0 iMac-ninazu:~ ninazu$ sudo nvram SystemStartupSound SystemStartupSound Hooks don't work either
Hook rights
iMac-ninazu:~ ninazu$ ls -la /Library/Scripts | grep mute -rwxr--r-- 1 root wheel 62 Aug 23 22:01 mute-off.sh -rwxr--r-- 1 root wheel 59 Aug 23 22:01 mute-on.sh When manually running the scripts. Screams like that
0: 1: syntax error: You can’t fix it here. (-2740)
Why in Ukrainian language. Xs, the rest of the axis in English.
Nothing helps. When rebooting, it still issues it.
Maybe something through the Recovery Mode, or what other options are there?
