boot
Boot the system
TLDR
Start a REPL session either with the project or standalone
Build a single uberjar
Generate scaffolding for a new project based on a template
Build for development (if using the boot/new template)
Build for production (if using the boot/new template)
Display help for a specific task
SYNOPSIS
boot
DESCRIPTION
The boot command is fundamental to the GRUB bootloader in Linux systems. It finalizes the boot configuration by loading the specified kernel and initramfs into memory, then relinquishing control to the kernel to start the operating system. Typically used after commands like linux to load the kernel image (e.g., vmlinuz) with root device and parameters, and initrd for the initial ramdisk. When executed at the GRUB prompt ("grub>") or via menu selection, GRUB passes the command line arguments to the kernel, which mounts filesystems and invokes the init process (e.g., systemd). This enables booting into multi-user mode or rescue environments. In interactive mode, users can troubleshoot boot issues by manually configuring and running boot. Unlike shell commands, it operates in real mode or protected mode pre-OS. Documentation is in info grub or GRUB manual. Not executable from Linux shell; requires bootloader context. Supports chainloading other bootloaders too.
CAVEATS
Only works in GRUB bootloader shell, not Linux user shell ("command not found" error). Requires prior linux/initrd setup; fails otherwise.
BASIC EXAMPLE
grub> linux /boot/vmlinuz-6.1.0 root=/dev/sda1
grub> initrd /boot/initrd.img-6.1.0
grub> boot
RESCUE USAGE
If kernel panic drops to GRUB: set root=(hd0,1); linux /vmlinuz root=/dev/sda1 single; boot
HISTORY
Originated in GRUB 0.5 (1996) by Erich Boleyn; evolved in GRUB Legacy (0.90-0.97, 2001-2005); ported to GRUB 2 (2009+) with modular design for UEFI/BIOS support.
SEE ALSO
grub-mkconfig(8), grub-install(8), efibootmgr(8), reboot(8)
