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21.9.2. Booting to Emergency Mode

Emergency mode provides the most minimal environment possible and allows you to repair your system even in situations when the system is unable to enter rescue mode. In emergency mode, the system mounts the root file system only for reading, does not attempt to mount any other local file systems, does not activate network interfaces, and only starts few essential services. In Fedora, emergency mode requires the root password.
  1. To enter emergency mode, on the GRUB 2 boot screen, press the e key for edit.
  2. Add the following parameter at the end of the linux line on 64-Bit IBM Power Series, the linux16 line on x86-64 BIOS-based systems, or the linuxefi line on UEFI systems:
    systemd.unit=emergency.target
    Press Ctrl+a and Ctrl+e to jump to the start and end of the line, respectively. On some systems, Home and End might also work.
    Note that equivalent parameters, emergency and -b, can be passed to the kernel as well.
  3. Press Ctrl+x to boot the system with the parameter.