Troubleshooting Mac Can’t Use home directory resource busy input/output error.
Solution:
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Edit /etc/auto_master
sudo pico /etc/auto_master
Comment Out the line containing /home so it look something like:
#/home auto_home -nobrowse
To Save & Exit from pico:Ctrl+x
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Unmount the Virtual /home
umount /home
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Make your New /home Directory
mkdir /home