In ISO live, if the size of efi.img > 32MB, and copy EFI application
(bootx64.efi) to efi.img behind of kernel and initrd, UEFI system
could not find EFI application bootx64.efi
Using QEMU+OVMF to boot ISO live image, press ESC to enter UEFI shell:
...
Shell> ls FS0:\
Directory of: FS0:\
04/05/2011 23:00 12,985,344 bzImage
04/05/2011 23:00 <DIR> 2,048 EFI
04/05/2011 23:00 20,494,696 initrd
04/05/2011 23:00 26 startup.nsh
3 File(s) 33,480,066 bytes
1 Dir(s)
Shell> ls FS0:\EFI
Directory of: FS0:\EFI
0 File(s) 0 bytes
0 Dir(s)
...
In following case, add 64MB extra space to bootable image efi.img,
and the partition table of EFI is truncated to 26.3M
$ echo 'IMAGE_FSTYPES:pn-core-image-minimal = " live"' >> conf/local.conf
$ echo 'MACHINE_FEATURES:append = " efi pcbios"' >> conf/local.conf
$ echo '# 64MB extra space to bootable image efi.img' >> conf/local.conf
$ echo 'BOOTIMG_EXTRA_SPACE = "65535"' >> conf/local.conf
$ bitbake core-image-minimal
$ fdisk -l tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64.rootfs.iso
...
Device Boot Start End Sectors Size Id Type
tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64.rootfs.iso1 * 0 376831 376832 184M 0 Empty
tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64.rootfs.iso2 120 54079 53960 26.3M ef EFI (FAT-12/16/32)
According to page 11: `Figure 5 - Section Entry' in El Torito Bootable
CD-ROM Format Specification [1]. The sector count takes 2 byte which
means max sector count is 0xffff (65535), for 512-byte sector, the
size of bootable image is no more than 32MB (65536 * 512 / 1024 / 1024)
This commit truncate to 32MB if image size larger than 32MB, and
report a warning, then save the extra image sector count to
vendor unique selection criteria
After apply this commit, the partition table of EFI is truncated to 32M
$ fdisk -l tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64.rootfs.iso
...
Device Boot Start End Sectors Size Id Type
tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64.rootfs.iso1 * 0 376831 376832 184M 0 Empty
tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64.rootfs.iso2 120 65654 65535 32M ef EFI (FAT-12/16/32)
[1]https://pdos.csail.mit.edu/6.828/2017/readings/boot-cdrom.pdf
(From OE-Core rev: 259bb8907d8bfe1217e88a3b6935c160e5a92f8d)
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Add a patch to fix do_configure with GCC 14.
Disable building cdda2wav because it doesn't build with GCC 14.
(From OE-Core rev: 0fbe1766abb00edeb8ec9a0c8bdb4e723be4f352)
Signed-off-by: Zoltán Böszörményi <zboszor@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This is a native recipe so won't be installed as root.
If the string 'root' is part of the username then the install script
can get tricked into thinking we are root (regardless of the actual
uid or permissions) resulting in attempts to run chown/chgrp
inappropriately.
(From OE-Core rev: 5db7b80140410cd3c164e4522dc87df92fac93b0)
Signed-off-by: Paul Barker <paul@betafive.co.uk>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
