The OEM partition is on a btrfs file system and grub has to be able to
read grub.cfg from there so it makes sense to include btrfs in core
modules. This avoids all other fs modules from being autoloaded during
boot.
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
In the context of load.cfg in the memdisk, root is set to memdisk, so
passing it as a hint to search is not helpful. While we don't know for
sure whether hd0 is the boot disk, it's a safe hint for most situations.
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
In case of sysext of zfs-kmod, pkg_setup() calls linux-info_get_any_version()
of eclass/linux-info.eclass with MERGE_TYPE=binary and
LINUX_INFO_BINARY_RESET=0. That results in KV_FULL and KV_OUT_DIR being
unset, which is not what we want. So set LINUX_INFO_BINARY_RESET=1 to
avoid such side effect.
Without setting them, build_sysext complains like below, i.e. it tries to find
System.map of a wrong Kernel version 6.6.21, when it should find a newer
version like 6.6.23. That results in subsequent zfs CI tests failing due to
missing files like System.map and module deps.
```
System.map for kernel 6.6.21-flatcar was not found, may be due to the
built kernel sources no longer being available and lacking the fallback:
```
Suggested-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
After making flatcar_production_pxe.vmlinuz a symlink to
flatcar_production_image.vmlinuz the signature creation didn't work
because the target could not be found.
As we do with the generic image, download the kernel from bincache, too,
before starting the VM image build.
The move to symlinking to the qemu-uefi image also resulted in the
qemu-uefi image being referenced in the qemu-bios and qemu-uefi-secure
scripts instead of referencing the image symlinks. Same for the VM name
shown in the qemu window title.
When generating the qemu scripts, use the original qemu image name and
VM name.
When mksquashfs encounters btrfs attributes which indicate that the file
is transparently compressed, it can't embed this info in the squashfs
and prints a warning about that.
Silence the warnings by excluding btrfs attributes as done already in
the rest of the code base. This aligns the mksquashfs invocation in this
regard.
