diff options
Diffstat (limited to 'include/sys/vdev_impl.h')
| -rw-r--r-- | include/sys/vdev_impl.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/sys/vdev_impl.h b/include/sys/vdev_impl.h index 90d607746013..3c4c3fb5a279 100644 --- a/include/sys/vdev_impl.h +++ b/include/sys/vdev_impl.h @@ -476,7 +476,16 @@ typedef struct vdev_phys { } vdev_phys_t; typedef enum vbe_vers { - /* The bootenv file is stored as ascii text in the envblock */ + /* + * The bootenv file is stored as ascii text in the envblock. + * It is used by the GRUB bootloader used on Linux to store the + * contents of the grubenv file. The file is stored as raw ASCII, + * and is protected by an embedded checksum. By default, GRUB will + * check if the boot filesystem supports storing the environment data + * in a special location, and if so, will invoke filesystem specific + * logic to retrieve it. This can be overriden by a variable, should + * the user so desire. + */ VB_RAW = 0, /* |