X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=doc%2FREADME.gpt;h=59fdeebfe89ccedbf6dc41e7d70c6449bb505c23;hb=a9657c2b14b0414a9878575ab38e1a46b3d2cb16;hp=f822894709ee800288142d8bcd2cdafd5c9a7659;hpb=39206382dea929b6a834c212b431821e06e68f39;p=karo-tx-uboot.git

diff --git a/doc/README.gpt b/doc/README.gpt
index f822894709..59fdeebfe8 100644
--- a/doc/README.gpt
+++ b/doc/README.gpt
@@ -66,14 +66,14 @@ GPT brief explanation:
 		       |Partition n                      |
 		       |                                 |
 	----------------------------------------------------------
-	LBA -34        |Entry 1|Entry 2| Entry 3| Entry 4| Secondary
-	-------------------------------------------------- (bkp)
-	LBA -33        |Entries 5 - 128                  | GPT
+	LBA -34        |Entry 1|Entry 2| Entry 3| Entry 4| Backup
+	-------------------------------------------------- GPT
+	LBA -33        |Entries 5 - 128                  |
 		       |                                 |
 		       |                                 |
 	LBA -2         |                                 |
 	--------------------------------------------------
-	LBA -1         |Secondary GPT Header             |
+	LBA -1         |Backup GPT Header                |
 	----------------------------------------------------------
 
 For a legacy reasons, GPT's LBA 0 sector has a MBR structure. It is called
@@ -86,7 +86,7 @@ It is possible to define 128 linearly placed partition entries.
 "LBA -1" means the last addressable block (in the mmc subsystem:
 "dev_desc->lba - 1")
 
-Primary/Secondary GPT header:
+Primary/Backup GPT header:
 ----------------------------
 Offset  Size    Description
 
@@ -115,7 +115,7 @@ IMPORTANT:
 
 GPT headers and partition entries are protected by CRC32 (the POSIX CRC32).
 
-Primary GPT header and Secondary GPT header have swapped values of "Current LBA"
+Primary GPT header and Backup GPT header have swapped values of "Current LBA"
 and "Backup LBA" and therefore different CRC32 check-sum.
 
 CRC32 for GPT headers (field "CRC of header") are calculated up till
@@ -125,7 +125,7 @@ CRC32 for partition entries (field "CRC32 of partition array") is calculated for
 the whole array entry ( Number_of_partition_entries *
 sizeof(partition_entry_size (usually 128)))
 
-Observe, how Secondary GPT is placed in the memory. It is NOT a mirror reflect
+Observe, how Backup GPT is placed in the memory. It is NOT a mirror reflect
 of the Primary.
 
 	   Partition Entry Format:
@@ -157,11 +157,13 @@ To restore GUID partition table one needs to:
      "partitions=uuid_disk=${uuid_gpt_disk};name=${uboot_name},
 	size=${uboot_size},uuid=${uboot_uuid};"
 
-   Fields 'name', 'size' and 'uuid' are mandatory for every partition.
+   The fields 'name' and 'size' are mandatory for every partition.
    The field 'start' is optional.
 
-   option: CONFIG_RANDOM_UUID
-   If any partition "UUID" no exists then it is randomly generated.
+   The fields 'uuid' and 'uuid_disk' are optional if CONFIG_RANDOM_UUID is
+   enabled. A random uuid will be used if omitted or they point to an empty/
+   non-existent environment variable. The environment variable will be set to
+   the generated UUID.
 
 2. Define 'CONFIG_EFI_PARTITION' and 'CONFIG_CMD_GPT'