An issue was found where when yocto is installed to a hard disk
from a live USB key, no matter what boot order was selected in
the BIOS menu, the grub menu of the USB key would always show
up. The issue was narrowed down to the way grub configuration
file gets embedded into the standalone bootx64.efi image.
The commit prepends ($cmdpath) to the search path for grub.cfg,
thus making sure the UEFI environment itself sets this to the
correct device path. This in-turn lets the grub.cfg of the boot
device to be loaded.
(From OE-Core rev: 5ce73b6055ac5a47906e2e661bc5163604f5cec9)
Signed-off-by: Arindam Nath <arindam.nath@amd.com>
Reviewed-by: Drew Moseley <drew_moseley@mentor.com>
Tested-by: Ravikiran Polepalli <Ravikiran_Polepalli@mentor.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The iso9660 file system support needs to be added to grub in order to
be able to correctly find the grub.cfg. The grub commands to locate
the grub.cfg also needs to be encoded into grub's default
configuration.
This change allows the resulting grub binary to work both in the hard
drive / USB boot case or the optical media boot case.
[YOCTO #4100]
(From OE-Core rev: 0bc0762a479b5182a07fccb2b1e9cd5fc15ca485)
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Arindam Nath
Jason Wessel