NewEnv creates a new lkenv object referencing the primary bootloader environment file at path with the specified version.

Default boot image file name to be used from kernel snap */.

the boot image partition label itself.

the value of the boot image partition label mapping (i.e.

SNAP_BOOTIMG_PART_NUM is the number of available boot image partitions.

const SNAP_BOOTSELECT_RECOVERY_SIGNATURE ('S' | ('R' << 8) | ('s' << 16) | ('e' << 24)) value comes from S(Snap)R(Recovery)se(select).

const SNAP_BOOTSELECT_SIGNATURE ('S' | ('B' << 8) | ('s' << 16) | ('e' << 24)) value comes from S(Snap)B(Boot)se(select).

SNAP_FILE_NAME_MAX_LEN is the maximum size of a C string representing a snap name, such as for a kernel snap revision.

* maximum number of available bootimg partitions for recovery systems, min 5 * NOTE: the number of actual bootimg partitions usable is determined by the * gadget, this just sets the upper bound of maximum number of recovery systems * a gadget could define without needing changes here */.

SNAP_RUN_BOOTIMG_PART_NUM is the number of available boot image partitions for uc20 for kernel/try-kernel in run mode.

Env contains the data of the little kernel environment.

Following structure has to be kept in sync with c structure defined by include/lk/snappy-boot_v1.h c headerfile is used by bootloader, this ensures sync of the environment between snapd and bootloader when this structure needs to be updated, new version should be introduced instead together with c header file, which is to be adopted by bootloader !!! Support for old version has to be maintained, as it is not guaranteed all existing bootloader would adopt new version!.