update.txt - FW update
What is it used for?
-
Checking the content of update.txt, helps to identify why a Audi TT FW update failed on the mid way from a very old FW to the latest.
-
You can manually generate or modify an
update.txtto trigger:- A custom FW update on demand and with specific tasks.
- A FW update on bench, without a screen connected to system.
Editing/generation of a custom update.txt
As an EXAMPLE, let us use this update.txt:
CRC = 4ff4205f
MetafileCRC = 9e12c2936b019a6d165cd3586105b85bc85bff2d
initiator = HMI
train = MHI2_ER_AU43x_S1074_1
variant = FM2-H-N-EU-AU-MQT
MUversion = 0884
RCCversion = U8228
AssemblyID = 0
ReleaseName = MHI2_ER_AU43x_P5098
startTime = 2021-10-07 14:09
LogSubDir = /HBpersistence/SWDL/Log/service/2
TransactionImageAddress = 0x540000
TransactionImageSize = 0x15a0530
Source = SD1
Path = /
ReleasePath =
Phase3Device = IOC
Phase3Device = MuINIC
[AMP16_APN\0\AMP16_APPL\6\default\bootloader]=NO;240;default;240
[AMP16_APN\0\AMP16_APPL\6\default\application]=NO;240;default;240
[FPK\0\gss-qb-recovery\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-qb-recovery\35\default\application]=NO;126;default;126
[FPK\0\gss-stage1-recovery\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-stage1-recovery\35\default\application]=NO;406;default;406
[FPK\0\gss-qb-primary\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-qb-primary\35\default\application]=NO;126;default;126
[FPK\0\gss-stage2\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-stage2\35\default\application]=NO;406;default;406
[FPK\0\gss-stage2-nand\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-stage2-nand\35\default\application]=NO;406;default;406
[FPK\0\gss-stage3\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-stage3\35\default\application]=NO;406;default;406
[FPK\0\gss-applications\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-applications\35\default\application]=NO;406;default;406
[FPK\0\gss-stage1\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-stage1\35\default\application]=NO;406;default;406
[FPK\0\gss-versioninfo\35\default\bootloader]=NO;0;default;0
[FPK\0\gss-versioninfo\35\default\application]=NO;601;default;601
[FPK\0\kss-flashdriver\35\default\bootloader]=NO;0;default;0
[FPK\0\kss-flashdriver\35\default\application]=NO;600;default;600
[FPK\0\kss-application\35\default\bootloader]=NO;0;default;0
[FPK\0\kss-application\35\default\application]=NO;600;default;600
[FPK\0\gss-inic\2\default\bootloader]=NO;0;default;0
[FPK\0\gss-inic\2\default\application]=NO;65536;default;65536
[RCC\0\ifs-emg\32\default\bootloader]=NO;0;default;0
[RCC\0\ifs-emg\32\default\application]=DONE;941;default;953
[RCC\0\ifs-root\32\default\bootloader]=NO;0;default;0
[RCC\0\ifs-root\32\default\application]=TODO;8734;default;9558
[RCC\0\efs-system\32\default\bootloader]=NO;0;default;0
[RCC\0\efs-system\32\default\application]=TODO;7566;default;8388
[RCC\0\dsp\32\default\bootloader]=NO;0;default;0
[RCC\0\dsp\32\default\application]=TODO;571811866;default;672601178
[Tuner\0\E2P\32\default\bootloader]=NO;0;default;0
[Tuner\0\E2P\32\default\application]=DONE;19005440;default;25755648
[IOC\0\Main\32\default\bootloader]=TODO;205;default;211
[IOC\0\Main\32\default\application]=TODO;5304;default;9264
[MuINIC\0\Main\32\default\bootloader]=NO;0;default;0
[MuINIC\0\Main\32\default\application]=NO;16909592;default;16909592
[FC1H33xE\0\FCB\22\default\bootloader]=NO;0;default;0
[FC1H33xE\0\FCB\22\default\application]=DONE;73;default;85
[FC1H33xE\0\FCP\22\default\bootloader]=NO;0;default;0
[FC1H33xE\0\FCP\22\default\application]=DONE;121;default;176
[FC1H33xE\0\FCR\22\default\bootloader]=NO;0;default;0
[FC1H33xE\0\FCR\22\default\application]=DONE;9;default;10
[FC1H33xE\0\HREU\22\default\bootloader]=NO;0;default;0
[FC1H33xE\0\HREU\22\default\application]=NO;12;default;12
[GPS\0\Main\32\default\bootloader]=NO;0;default;0
[GPS\0\Main\32\default\application]=NO;603;default;603
[MMX2\0\qb-recovery\73\default\bootloader]=NO;0;default;0
[MMX2\0\qb-recovery\73\default\application]=DONE;111;default;202
[MMX2\0\qb-primary\73\default\bootloader]=NO;0;default;0
[MMX2\0\qb-primary\73\default\application]=DONE;111;default;202
[MMX2\0\eifs\73\default\bootloader]=NO;0;default;0
[MMX2\0\eifs\73\default\application]=DONE;1380;default;2690
[MMX2\0\mifs-stage2\73\default\bootloader]=NO;0;default;0
[MMX2\0\mifs-stage2\73\default\application]=DONE;1380;default;2690
[MMX2\0\efs-sys\73\default\bootloader]=NO;0;default;0
[MMX2\0\efs-sys\73\default\application]=DONE;1380;default;2690
[MMX2\0\app\73\default\bootloader]=NO;0;default;0
[MMX2\0\app\73\default\application]=DONE;1380;default;2690
[MMX2\0\mifs-stage1\73\default\bootloader]=NO;0;default;0
[MMX2\0\mifs-stage1\73\default\application]=DONE;1380;default;2690
[MMX2\0\efs-pers\73\default\bootloader]=NO;0;default;0
[MMX2\0\efs-pers\73\default\application]=NO;2;default;2
[DVD\0\Main\48\default\bootloader]=NO;0;default;0
[DVD\0\Main\48\default\application]=NO;32;default;32
[SpeechAppRes\0\speech-common-data\0\default\Dir]=TODO;5349;default;5706;MMX
[SpeechAppRes\0\speech-tts-app-data-vg\0\default\Dir]=TODO;5349;default;5706;MMX
[SpeechAppRes\0\speech-sr-data\0\default\Dir]=TODO;5349;default;5706;MMX
[SpeechRes\0\speech-tts-data_EU\0\default\Dir]=TODO;6090;default;7776;MMX
[SpeechRes\0\speech-tts-data_ROW\0\default\Dir]=TODO;6090;default;7776;MMX
[SpeechRes\0\speech-tts-voices\0\default\Dir]=TODO;6090;default;7776;MMX
[MuTnrRef\0\data\0\default\File]=DONE;494;default;190
[MUConsistency\0\Data\0\default\File]=DONE;884;default;1339
{RCC\Post}=TODO;
{RCC\Pre}=DONE;
{Final}=TODO;
CRC = is the CRC32 of all update.txt lines WITHOUT the CRC line (including \n) - in this example: CRC = 4ff4205f
If you calculate CRC32 of theupdate.txtwith the CRC line, SWDL will consider the file as damaged: 
MetafileCRC = contains SHA1 value of MetafileChecksum from metainfo2.txt.
SWDL will check if this value matches MetafileChecksum value in metainfo2.txt.
Example from FW MHI2_ER_AU43x_P5098
MetafileCRC = skip
Update packages
To quickly see how much packages are remaining to be installed, check with:
Lines may look like:
[RCC\0\ifs-root\32\default\application]=TODO;8734;default;9558
Let's break down the line contend:
[RCC\0\ifs-root\32\default\application - similar to the line in metainfo2.txt with adding a device number]===Status (see below)==;version of the module in unit;default(unknown)target version on SD/USB card update
Status: NO/TODO/DONE
| Status | Meaning |
|---|---|
| NO | nothing to be done to this package |
| TODO | still open and has to be finished by FW update process |
| DONE | finished by FW update process |
Based on the example above, these other lines also play a role in update.txt
Not all are required for a custom build update.txt
Not all are used by the different types of FW updates, like map updates, POI, …
| Line | Description | mandatory |
|---|---|---|
| initiator = HMI | which module created the file | ? |
| train = MHI2_ER_AU43x_S1074_1 | train of FW at start of update | ? |
| variant = FM2-H-N-EU-AU-MQT | ? | |
| MUversion = 0884 | MU version of original FW at start of update | ? |
| RCCversion = U8228 | ? | |
| AssemblyID = 0 | ? | |
| ReleaseName = MHI2_ER_AU43x_P5098 | Pulled from metainfo2.txt \n  | ? |
| startTime = 2021-10-07 14:09 | ? | |
| LogSubDir = /HBpersistence/SWDL/Log/service/2 | storage location on unit on RCC for Log of this update | ? |
| TransactionImageAddress = 0x540000 | RCC hex start address of ifs-root image | ? |
| TransactionImageSize = 0x15a0530 | ? | |
| Source = SD1 | ? | |
| Path = / | ? | |
| ReleasePath = | ? | |
| Phase3Device = IOC | ? | |
| Phase3Device = MuINIC | ? | |
| {RCC\Post}=TODO; | ? | |
| {RCC\Pre}=DONE; | ? | |
| {Final}=TODO; | Status of FinalScript in metainfo2.txt \n  | ? |
| Feel free to add more here! |
Community content mirrored from mibwiki.one. Always make a backup before flashing or coding a unit.