uinit

command
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Published: Jan 27, 2019 License: BSD-3-Clause Imports: 4 Imported by: 0

README

Example User uinit

u-root's built-in init command will call uinit if it exits.

The uinit.go in this dir runs a number of commands, including getting an IPv4 address using DHCP, then runs the elvish shell. When the user exists the shell, shutdown halt is automatically run.

To build the example:

    # make some changes to uinit.go in examples/uinit/uinit.go
    u-root -format=cpio -build=bb -o initramfs.cpio \
        ./cmds/* \
        github.com/u-root/u-root/examples/uinit

And then to run it in qemu, with a network:

    qemu-system-x86_64 \
        -m 4096M \
        -nographic -serial mon:stdio -display none -curses \
        -append "console=ttyS0 " \
        -net nic,vlan=0,model=virtio \
        -net user,vlan=0,hostfwd=tcp::2222-:2222,hostname=u-boot \
        -kernel kernel/vmlinuz-$(KERNEL) \
        -initrd initramfs.cpio

Documentation

Overview

This is a basic init script.

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