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