* Boot problems, such as: GRUB config/install errors, kernel parameters, init startup errors, blocking processes
* Many network scenarios, such as: PXE issues, multipath, load-balacing, anything requiring configuring network interface settings, firewall configuration.
* Resetting an unknown root password
* Booting directly to bash
* Filesystem mounts through fstab or systemd mounts
There's probably more I could think of, but I think that's a good list.
* Boot problems, such as: GRUB config/install errors, kernel parameters, init startup errors, blocking processes
* Many network scenarios, such as: PXE issues, multipath, load-balacing, anything requiring configuring network interface settings, firewall configuration.
* Resetting an unknown root password
* Booting directly to bash
* Filesystem mounts through fstab or systemd mounts
There's probably more I could think of, but I think that's a good list.