You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
1.9 KiB
67 lines
1.9 KiB
2 years ago
|
// -*- 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.
|