Booting into single user modeEdit

To boot into single user mode on Mac OS X hold down the Command+S keys while rebooting. This is not equivalent to dropping back to the console.

I use a Spanish keyboard but in single user mode a US keymap applies. This means that to type a hyphen I must use the ?/' key and to type a forward-slash I must use the -/_ key.

To check the disk:

fsck -y

To remount the disk in read/write mode:

mount -uw /