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Darren Hart
c13afae688
Fixes [YOCTO 2257]
GPT partitions are common for EFI systems. Add support for them by
including the part_gpt partition module in the grub-efi image. In
order to allow for loading a Linux kernel from an EXT* filesystem,
include the ext2 module as well.
With this fix applied, I was able to boot from a USB key using a
GPT partition table with the following layout:
$ sudo gdisk -l /dev/sdc
GPT fdisk (gdisk) version 0.8.2
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sdc: 7669824 sectors, 3.7 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 68FA7CD4-E0C3-4A8E-82B5-1331C9B17A3C
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 7669790
Partitions will be aligned on 2-sector boundaries
Total free space is 7428816 sectors (3.5 GiB)
Number Start (sector) End (sector) Size Code Name
1 34 32801 16.0 MiB 0700 # FAT16
2 32802 240974 101.6 MiB 0700 # EXT3
From within GRUB, booted as bootia32.efi from the BOOT partition, I
booted the OS with the following commands:
grub> linux (hd0,gpt2)/vmlinuz rootwait root=/dev/sda2 console=ttyS0,115200
grub> boot
This change will enable BSP developers to use the grub-efi image in
their own images as well as enable upcoming changes to the installer
to support EFI.
(From OE-Core rev: a2c6687410f00623efe8dfcb22385cbbc7f2e1a9)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
CC: Kishore Bodke <kishore.k.bodke@intel.com>
CC: Rahul Saxena <rahul.saxena@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
====
Poky is an integration of various components to form a complete prepackaged
build system and development environment. It features support for building
customised embedded device style images. There are reference demo images
featuring a X11/Matchbox/GTK themed UI called Sato. The system supports
cross-architecture application development using QEMU emulation and a
standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports
is available in README.hardware. Further hardware support can easily be added
in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as
BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information
e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a
reference manual which can be found at:
http://yoctoproject.org/community/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions
of OpenEmbedded. It is distro-less (can build a functional image with
DISTRO = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website:
http://www.openembedded.org/