PT: Partition DTB NOT found!

No boot after transferring system from internal to external storage - Jetson Nano (Model P-3448-0002)

I am encountering an issue with my Jetson Nano (model P-3448-0002) after attempting to transfer the system from internal storage to external storage. Following the transfer, the device no longer boots, and there is no display output.

To diagnose the problem, I connected the Jetson Nano to a Ubuntu system using a micro USB cable and attempted to download the necessary files using FTDI. However, upon launching the JetPack SDK Manager, I am unable to see any available SDKs.

The FTDI output I received is as follows:

Welcome to minicom 2.7.1

Compiled on Aug 13 2017, 15:25:34.
Port /dev/ttyUSB0, 19:31:19

Press CTRL-A Z for help on special keys

[0000.221] [L4T TegraBoot] (version 00.00.2018.01-l4t-b1625959)
[0000.226] Processing in cold boot mode Bootloader 2
[0000.231] A02 Bootrom Patch rev = 1023
[0000.234] Power-up reason: pmc por
[0000.238] No Battery Present
[0000.240] pmic max77620 reset reason
[0000.244] pmic max77620 NVERC : 0x40
[0000.247] RamCode = 0
[0000.249] Platform has DDR4 type RAM
[0000.253] max77620 disabling SD1 Remote Sense
[0000.257] Setting DDR voltage to 1125mv
[0000.261] Serial Number of Pmic Max77663: 0x83969
[0000.268] Entering ramdump check
[0000.271] Get RamDumpCarveOut = 0x0
[0000.275] RamDumpCarveOut=0x0,  RamDumperFlag=0xe59ff3f8                       
[0000.280] Last reboot was clean, booting normally!                             
[0000.284] Sdram initialization is successful                                   
[0000.288] SecureOs Carveout Base=0x00000000ff800000 Size=0x00800000            
[0000.295] Lp0 Carveout Base=0x00000000ff780000 Size=0x00001000                 
[0000.300] BpmpFw Carveout Base=0x00000000ff700000 Size=0x00080000              
[0000.306] GSC1 Carveout Base=0x00000000ff600000 Size=0x00100000                
[0000.312] GSC2 Carveout Base=0x00000000ff500000 Size=0x00100000                
[0000.318] GSC4 Carveout Base=0x00000000ff400000 Size=0x00100000                
[0000.324] GSC5 Carveout Base=0x00000000ff300000 Size=0x00100000                
[0000.330] GSC3 Carveout Base=0x000000017f300000 Size=0x00d00000                
[0000.346] RamDump Carveout Base=0x00000000ff280000 Size=0x00080000             
[0000.352] Platform-DebugCarveout: 0                                            
[0000.355] Nck Carveout Base=0x00000000ff080000 Size=0x00200000                 
[0000.361] Non secure mode, and RB not enabled.                                 
[0000.365] *** Booting BFS0.                                                    
[0000.368] Initialize FailControl                                               
[0000.371] Read PT from (0:3)                                                   
[0000.386] Csd NumOfBlocks=0                                                    
[0000.425] PT crc32 and magic check passed.                                     
[0000.429] Using BFS PT to query partitions                                     
[0000.433] PT: Partition LNX NOT found !                                        
[0000.437] *** Booting KFS0.                                                    
[0000.439] NvTbootFailControlDoFailover: No failover; Continuing ...            
[0000.445] BoardID = 3448, SKU = 0x2                                            
[0000.448] Not Nano-SD or !QSPI-ONLY, check GPT table first ...                 
[0000.454] Read GPT from (0:3)                                                  
[0000.462] Using GPT Primary to query partitions                                
[0000.467] NvTbootFailControlDoFailover: No failover; Continuing ...            
[0000.473] Loading Tboot-CPU binary                                             
[0000.479] Verifying TBC in OdmNonSecureSBK mode                                
[0000.490] Bootloader load address is 0xa0000000, entry address is 0xa0000258   
[0000.497] Bootloader downloaded successfully.                                  
[0000.501] Downloaded Tboot-CPU binary to 0xa0000258                            
[0000.506] MAX77620_GPIO5 configured                                            
[0000.509] CPU power rail is up                                                 
[0000.512] CPU clock enabled                                                    
[0000.516] Performing RAM repair                                                
[0000.519] Updating A64 Warmreset Address to 0xa00002e9                         
[0000.524] BoardID = 3448, SKU = 0x2                                            
[0000.527] Not Nano-SD or !QSPI-ONLY, check GPT table first ...                 
[0000.533] NvTbootFailControlDoFailover: No failover; Continuing ...            
[0000.539] Loading NvTbootBootloaderDTB                                         
[0000.556] Verifying NvTbootBootloaderDTB in OdmNonSecureSBK mode               
[0000.628] Bootloader DTB Load Address: 0x83000000                              
[0000.633] BoardID = 3448, SKU = 0x2                                            
[0000.636] Not Nano-SD or !QSPI-ONLY, check GPT table first ...                 
[0000.642] NvTbootFailControlDoFailover: No failover; Continuing ...            
[0000.648] PT: Partition DTB NOT found !                                        
[0000.652] Warning: Find Partition via PT Failed                                
[0000.656] Error is 1                                                           

No electrical/physical damages I’m sure.

Where should I dig in this case?

At least tell me how you did this…

We installed a new system using the SDK Manager, and the eMMC memory was full, so the necessary libraries were not installed yet. I searched for how to transfer the system from eMMC to a Micro SD card and succeeded in doing so. Afterward, I opened the disk drive to check the space and found that there was still a copy of the system in the eMMC memory, so I started deleting these drives. After deleting these drives, I restarted the Jetson Nano, but there was no response.

I installed a new system on the Micro SD card, but the problem was not resolved. When I connect the Jetson Nano to the SDK Manager, it recognizes it, but I cannot proceed to the next step to install a new system.

You didn’t answer how you did it at all…
Like what tools you used. Or you don’t know what does how mean?

Anyway, if the SD card slot is on the carrier board, that means it’s a custom board, and of course SDK Manager cannot recognize it.

Also, most of the time the system still boots from eMMC, but just that rootfs is mounted over SD card, and no one told you to delete contents on eMMC…

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