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// -*- mode:doc; -*-
// vim: set syntax=asciidoc:
== Beyond Buildroot
=== Boot the generated images
==== NFS boot
To achieve NFS-boot, enable _tar root filesystem_ in the _Filesystem
images_ menu.
After a complete build, just run the following commands to setup the
NFS-root directory:
-------------------
sudo tar -xavf /path/to/output_dir/rootfs.tar -C /path/to/nfs_root_dir
-------------------
Remember to add this path to +/etc/exports+.
Then, you can execute a NFS-boot from your target.
==== Live CD
To build a live CD image, enable the _iso image_ option in the
_Filesystem images_ menu. Note that this option is only available on
the x86 and x86-64 architectures, and if you are building your kernel
with Buildroot.
You can build a live CD image with either IsoLinux, Grub or Grub 2 as
a bootloader, but only Isolinux supports making this image usable both
as a live CD and live USB (through the _Build hybrid image_ option).
You can test your live CD image using QEMU:
-------------------
qemu-system-i386 -cdrom output/images/rootfs.iso9660
-------------------
Or use it as a hard-drive image if it is a hybrid ISO:
-------------------
qemu-system-i386 -hda output/images/rootfs.iso9660
-------------------
It can be easily flashed to a USB drive with +dd+:
-------------------
dd if=output/images/rootfs.iso9660 of=/dev/sdb
-------------------
=== Chroot
If you want to chroot in a generated image, then there are few thing
you should be aware of:
* you should setup the new root from the _tar root filesystem_ image;
* either the selected target architecture is compatible with your host
machine, or you should use some +qemu-*+ binary and correctly set it
within the +binfmt+ properties to be able to run the binaries built
for the target on your host machine;
* Buildroot does not currently provide +host-qemu+ and +binfmt+
correctly built and set for that kind of use.
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