On a UEFI system, firmware initialization is complete.
Continue a normal Linux boot according to the boot entry.
What does UEFI execute next?
UEFI follows boot entries in NVRAM and executes a bootloader or other EFI application from the EFI System Partition.
Detailed explanation
Correct. UEFI loads an EFI application such as a bootloader from the ESP.
Correct. UEFI loads an EFI application such as a bootloader from the ESP.
Incorrect. /sbin/init runs later in user space.
Incorrect. /sbin/init runs later in user space.
Incorrect. /etc/fstab is read during filesystem setup, not by firmware as the next executable.
Incorrect. /etc/fstab is read during filesystem setup, not by firmware as the next executable.
Incorrect. default.target is a systemd concept after the kernel and init system start.
Incorrect. default.target is a systemd concept after the kernel and init system start.
Try it yourself
An example you can run in a temporary verification environment.
test -d /sys/firmware/efi && echo UEFI || echo 'UEFI sysfs not present'Expected result
UEFI起動ならUEFI。BIOS起動や一部仮想環境ではUEFI sysfs not presentKey points
- The ESP is a FAT-style partition
- UEFI loads an EFI executable
- init runs after the kernel starts
Notes
- Environment: Linux / UEFI概念・sysfs
- Command output formatting can vary slightly by distribution or tool version.
- Run the example in a temporary directory or process when possible.
Foundation review
Read the scope first
Check whether the command acts on the current shell, a new process, an existing process, or a file.
Verify the observable result
Use the supplied command and compare the output with the expected result.