Following commit fee29b05bb
("configs/pc_x86_64_efi: use a GPT partition table"),
board/pc/grub-efi.cfg is no longer used anywhere: the
post-image-efi-gpt.sh script generates the grub configuration.
Also, since post-image-efi-gpt.sh generates a grub configuration file
that uses the root filesystem partition UUID as the root= kernel
argument, the instructions in the readme.txt file to tweak root= from
/dev/sda2 to /dev/vda2 is no longer relevant. This was noted in the
commit log of fee29b05bb:
The root filesystem location is passed to the kernel by a partition
UUID, so it is possible to boot on QEMU, directly from the disk image,
or dump the image to a physical device.
Fixes: #11841
Cc: Pete Morici <pmorici@dev295.com>
Cc: Carlos A. M. dos Santos <unixmania@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Since all EFI-based systems support GPT, this commit changes
pc_x86_64_efi to use a GPT partition table. It shows an example of how
to craft a disk image with GPT partitioning instead of MBR. This is
achieved by means of a post-image script which uses
mkdosfs+mcopy+sfdisk, since genimage is unable to deal with GPT. Long
term, it would be ideal if genimage had GPT support, but until then,
this script shows how to achieve creating a GPT-based disk image.
The script was kept as simple as possible to make it easy to understand
and adapt for other purposes.
The root filesystem location is passed to the kernel by a partition
UUID, so it is possible to boot on QEMU, directly from the disk image,
or dump the image to a physical device.
Signed-off-by: Carlos Santos <casantos@datacom.com.br>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Add some documentation about running the pc defconfigs in qemu.
In particular, document the use of the -bios parameter to use the OVMF
firmware to test the UEFI image.
Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The instructions listed sdcard.img as output image name but
board/pc/genimage-*.cfg generate it named as disk.img instead.
Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Add two new sample defconfigs oriented towards real PC targets.
It adds two variants for BIOS and EFI boot strategy.
On the build side we enable eudev to autoload relevant kernel
modules/support when necessary.
It adds a bunch of drivers and extra filesystem support which is by no
means extensive/complete, mostly geared towards the hardware i've got at
hand to test with.
This is accomplished by adding on top of the Qemu x86_64 kernel sample
config.
Build connman since by using eudev network interfaces get renamed on
boot thus complicating any form of automatic and friendly bringup.
It also makes Wi-Fi configuration/support easier.
In principle these base defconfigs should work just fine for other
storage media != pendrive like sata or ssd disk, however driver support
isn't there quite yet, and pendrive is mostly supported by usb storage
plus the usual usb host controller drivers.
Tested on old Lenovo laptop (BIOS) and Asus Zenbook (EFI).
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
