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