with change to linux-lts as current default kernel dir for dtbs
is changed to /boot/dtbs-$_f and this commit change it to new one
DEVICETREEDIR in extlinux.conf for u-boot is changed to FDTDIR to
follow documentation in u-boot (upstream)
If Xen is present and Grub is used, like on UEFI systems, use multiboot2
to load Xen and the dom0 linux kernel.
Enable grub modules:
* part_gpt: to read files from GPT partitions
* multiboot2: to load multiboot2 kernels, like Xen
* gzio: to load Xen which is gzip compressed
standard iso is now vanilla kernel so it does not make any sense to have
a separata vanilla iso.
Also update xen to use vanilla kernel instead of hardened
Strictly the 'efi' folder is not needed since it's in the efi.img.
However, converting .iso to USB stick is a lot simpler when the
EFI folder is in the .iso too. This allows just copying .iso contents
to the USB stick and EFI boot will work. While Rufus supports
extracting the boot files from efi.img, it was considered more
portable to add the copy. This also simplifies updating setup-bootable
to prepare EFI bootable disks.
set console=hvc0 via boot option. This configuration make init to add
hvc0 to /etc/inittab and /etc/securetty. This is needed to allow login
with 'root' user.
To boot ppc64le we need to use grub with ieee1275 platform. Said that,
a new section to support grub ieee1275 was created.
Also needed to change xorrisofs command by grub-mkrescue, that is the one
used to create a bootable image for power and it is also a wrapper to xorriso.
not enabled yet, but uncommenting the grub_mod should enable
building of isolinux+grubefi hybrid images. once uefi boot works
and is verified on aarch64, we can enable the vanilla iso image
(grsec does not support aarch64).
the boot repositry needs to be signed with a key. We explicitly copy
this to initramfs so users don't need use --hostkeys which requires
access to /etc/apk/keys/
without the key in intramfs the boot repository will be useless
