Variable efi_system_partition holds the efi_system_partition. Currently it is initialized as:

{ .uclass_id = 0 = UCLASS_ROOT, .denum = 0, .part = 0, }

This indicates that host 0:0 is the efi_system_partition and we see output like:

=> bootefi hello ** Bad device specification host 0 ** Couldn't find partition host 0:0

To identify that no EFI system partition has been set use UCLASS_INVALID.

Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- lib/efi_loader/efi_disk.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c index cef4e45124..48fdd33a63 100644 --- a/lib/efi_loader/efi_disk.c +++ b/lib/efi_loader/efi_disk.c @@ -19,7 +19,9 @@ #include <part.h> #include <malloc.h>

-struct efi_system_partition efi_system_partition; +struct efi_system_partition efi_system_partition = { + .uclass_id = UCLASS_INVALID, +};

const efi_guid_t efi_block_io_guid = EFI_BLOCK_IO_PROTOCOL_GUID; const efi_guid_t efi_system_partition_guid = PARTITION_SYSTEM_GUID;