Problem:Flashing yocto image on Jetson Nano emmc, can not boot correctly

Hi,

  1. according to this instruction I generate a custom image for jetson nano with emmc.

  2. according to this instruction the image files are flashed in emmc on jetson nano.
    doflash.sh i get it from here.

  3. the output of flashing process seems successfully:
    sudo ./deploy.sh core-image-sato-dev jetson-nano-devkit-emmc
    Using temp directory /tmp/tmp.dqrpz9m9ZD
    /tmp/tmp.dqrpz9m9ZD ~/yocto-tegra/tegra_flash
    ./
    cboot.bin
    odmsign.func
    jetson-nano-devkit-emmc.cfg
    make-sdcard
    nvtboot_cpu_rb.bin
    eks.img
    tegraflash_internal.py
    tegradevflash
    tegrabct
    core-image-sato-dev.ext4
    tegrasign_v3.py
    chkbdinfo
    sc7entry-firmware.bin
    tegra210-p3448-0002-p3449-0000-a02.dtb
    nvtboot.bin
    BMP_generator_L4T.py
    flash.xml.in
    tegraflash.py
    tos-mon-only.img
    mkpkc
    bmp.blob
    cboot_rb.bin
    warmboot.bin
    tegrasign_v3_util.py
    tegraopenssl
    mkbctpart
    nvflashxmlparse
    doflash.sh
    nvtboot_cpu.bin
    tegrasign
    nvtboot_recovery.bin
    l4t_bup_gen.func
    tegraparser
    tegra210-p3448-0002-p3449-0000-b00.dtb
    tegrarcm
    rp4.blob
    generate_bup_payload.sh
    tegrasign_v3_internal.py
    mkgpt
    tegrahost
    tegra210-flash-helper.sh
    boot.img
    mksparse
    mkbootimg
    nvtboot_rb.bin
    flashvars
    BUP_generator.py
    bsp_version
    Welcome to Tegra Flash
    version 1.0.0
    Type ? or help for help and q or quit to exit
    Use ! to execute system commands

[ 0.0049 ] Generating RCM messages
[ 0.0148 ] tegrarcm --listrcm rcm_list.xml --chip 0x21 0 --download rcm nvtboot_recovery.bin 0 0
[ 0.0197 ] RCM 0 is saved as rcm_0.rcm
[ 0.0216 ] RCM 1 is saved as rcm_1.rcm
[ 0.0217 ] List of rcm files are saved in rcm_list.xml
[ 0.0218 ]
[ 0.0218 ] Signing RCM messages
[ 0.0310 ] tegrasign --key None --list rcm_list.xml --pubkeyhash pub_key.key
[ 0.0389 ] Assuming zero filled SBK key
[ 0.0568 ]
[ 0.0571 ] Copying signature to RCM mesages
[ 0.0640 ] tegrarcm --chip 0x21 0 --updatesig rcm_list_signed.xml
[ 0.0796 ]
[ 0.0799 ] Boot Rom communication
[ 0.0878 ] tegrarcm --chip 0x21 0 --rcm rcm_list_signed.xml --skipuid
[ 0.0953 ] RCM version 0X210001
[ 0.2220 ] Boot Rom communication completed
[ 1.2492 ]
[ 1.2495 ] dump EEPROM info
[ 1.2612 ] tegrarcm --oem platformdetails eeprom /tmp/tmp.dqrpz9m9ZD/cvm.bin.dldke
[ 1.2694 ] Applet version 00.01.0000
[ 1.3920 ] Saved platform info in /tmp/tmp.dqrpz9m9ZD/cvm.bin.dldke
[ 1.5023 ]
[ 1.5105 ] tegrarcm --reboot recovery
[ 1.5154 ] Applet version 00.01.0000
[ 1.6525 ]
Board ID(3448) version(401) SKU(0002) revision(G.0)
Welcome to Tegra Flash
version 1.0.0
Type ? or help for help and q or quit to exit
Use ! to execute system commands

[ 0.0103 ] tegrasign --getmode mode.txt --key None
[ 0.0147 ] Assuming zero filled SBK key
[ 0.0174 ]
[ 0.0180 ] Generating RCM messages
[ 0.0260 ] tegrarcm --listrcm rcm_list.xml --chip 0x21 0 --download rcm nvtboot_recovery.bin 0 0
[ 0.0303 ] RCM 0 is saved as rcm_0.rcm
[ 0.0342 ] RCM 1 is saved as rcm_1.rcm
[ 0.0343 ] List of rcm files are saved in rcm_list.xml
[ 0.0343 ]
[ 0.0345 ] Signing RCM messages
[ 0.0420 ] tegrasign --key None --list rcm_list.xml --pubkeyhash pub_key.key
[ 0.0458 ] Assuming zero filled SBK key
[ 0.0618 ]
[ 0.0621 ] Copying signature to RCM mesages
[ 0.0718 ] tegrarcm --chip 0x21 0 --updatesig rcm_list_signed.xml
[ 0.0821 ]
[ 0.0824 ] Parsing partition layout
[ 0.0945 ] tegraparser --pt flash.xml.tmp
[ 0.1079 ]
[ 0.1086 ] Using default ramcode: 0
[ 0.1087 ] Disable BPMP dtb trim, using default dtb
[ 0.1088 ]
[ 0.1089 ] Creating list of images to be signed
[ 0.1247 ] tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
[ 0.2133 ]
[ 0.2136 ] Generating signatures
[ 0.2188 ] tegrasign --key None --list images_list.xml --pubkeyhash pub_key.key
[ 0.2231 ] Assuming zero filled SBK key
[ 0.5222 ]
[ 0.5226 ] Generating br-bct
[ 0.5334 ] tegrabct --bct jetson-nano-devkit-emmc.cfg --chip 0x21 0
[ 0.5618 ]
[ 0.5620 ] Updating boot device parameters
[ 0.5708 ] tegrabct --bct jetson-nano-devkit-emmc.bct --chip 0x21 0 --updatedevparam flash.xml.bin
[ 0.5752 ] Warning: No sdram params
[ 0.5781 ]
[ 0.5783 ] Updating bl info
[ 0.5868 ] tegrabct --bct jetson-nano-devkit-emmc.bct --chip 0x21 0 --updateblinfo flash.xml.bin --updatesig images_list_signed.xml
[ 0.5960 ]
[ 0.5962 ] Updating secondary storage information into bct
[ 0.6008 ] tegraparser --pt flash.xml.bin --chip 0x21 0 --updatecustinfo jetson-nano-devkit-emmc.bct
[ 0.6085 ]
[ 0.6089 ] Updating Odmdata
[ 0.6161 ] tegrabct --bct jetson-nano-devkit-emmc.bct --chip 0x21 0 --updatefields Odmdata =0xA4000
[ 0.6269 ] Warning: No sdram params
[ 0.6277 ]
[ 0.6279 ] Get Signed section of bct
[ 0.6326 ] tegrabct --bct jetson-nano-devkit-emmc.bct --chip 0x21 0 --listbct bct_list.xml
[ 0.6432 ]
[ 0.6435 ] Signing BCT
[ 0.6606 ] tegrasign --key None --list bct_list.xml --pubkeyhash pub_key.key
[ 0.6663 ] Assuming zero filled SBK key
[ 0.6682 ]
[ 0.6683 ] Updating BCT with signature
[ 0.6747 ] tegrabct --bct jetson-nano-devkit-emmc.bct --chip 0x21 0 --updatesig bct_list_signed.xml
[ 0.6820 ]
[ 0.6822 ] Copying signatures
[ 0.6886 ] tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --updatesig images_list_signed.xml
[ 0.7446 ]
[ 0.7450 ] Updating BFS information on BCT
[ 0.7541 ] tegrabct --bct jetson-nano-devkit-emmc.bct --chip 0x21 0 --updatebfsinfo flash.xml.bin
[ 0.7580 ] BFS:
[ 0.7628 ] 0: [PT ] crc-flash.xml.bin (size=131072/131072)
[ 0.7663 ] 1: [TBC] nvtboot_cpu.bin.encrypt (size=65760/196608)
[ 0.7689 ] 2: [RP1] tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt (size=238304/1048576)
[ 0.7911 ] 3: [EBT] cboot.bin.encrypt (size=484464/655360)
[ 0.7996 ] 4: [WB0] warmboot.bin.encrypt (size=3952/131072)
[ 0.8108 ] 5: [BPF] sc7entry-firmware.bin.encrypt (size=3376/262144)
[ 0.8239 ] BFS0: 131072 @ 2560 SUM 1723bf26 over 2883584 bytes
[ 0.8378 ] BFS:
[ 0.8390 ] 0: [PT-1] crc-flash.xml.bin (size=131072/131072)
[ 0.8597 ] 1: [TBC-1] nvtboot_cpu.bin.encrypt (size=65760/196608)
[ 0.8768 ] 2: [RP1-1] tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt (size=238304/1048576)
[ 0.8923 ] 3: [EBT-1] cboot.bin.encrypt (size=484464/655360)
[ 0.9081 ] 4: [WB0-1] warmboot.bin.encrypt (size=3952/131072)
[ 0.9212 ] 5: [BPF-1] sc7entry-firmware.bin.encrypt (size=3376/262144)
[ 0.9385 ] 8: [VER_b] jetson-nano-devkit-emmc_bootblob_ver.txt (size=102/32768)
[ 0.9513 ] 9: [VER] jetson-nano-devkit-emmc_bootblob_ver.txt (size=102/32768)
[ 0.9706 ] BFS1: 131072 @ 8704 SUM 1723bf26 over 2981888 bytes
[ 0.9759 ] KFS:
[ 0.9762 ] 0: [DTB] tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt (size=238304/1048576)
[ 0.9776 ] 1: [TOS] tos-mon-only.img.encrypt (size=54208/6291456)
[ 0.9796 ] 2: [EKS] eks.img (size=1028/81920)
[ 0.9809 ] 3: [LNX] boot.img.encrypt (size=659456/67092480)
[ 0.9832 ] KFS0: 1048576 @ 29376546 SUM 301298db over 8081408 bytes
[ 0.9847 ] KFS:
[ 1.0288 ] 0: [DTB-1] tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt (size=238304/1048576)
[ 1.0312 ] 1: [TOS-1] tos-mon-only.img.encrypt (size=54208/6291456)
[ 1.0323 ] 2: [EKS-1] eks.img (size=1028/81920)
[ 1.0330 ] 3: [LNX-1] boot.img.encrypt (size=659456/67092480)
[ 1.0467 ] KFS1: 1048576 @ 29522082 SUM 301298db over 8081408 bytes
[ 1.0470 ]
[ 1.0477 ] Boot Rom communication
[ 1.0561 ] tegrarcm --chip 0x21 0 --rcm rcm_list_signed.xml
[ 1.0618 ] BR_CID: 0x32101001643205c92400000012ff0280
[ 1.1069 ] RCM version 0X210001
[ 1.1471 ] Boot Rom communication completed
[ 2.1719 ]
[ 2.1724 ] Sending BCTs
[ 2.1833 ] tegrarcm --download bct jetson-nano-devkit-emmc.bct
[ 2.1964 ] Applet version 00.01.0000
[ 2.2837 ] Sending bct
[ 2.2878 ] […] 100%
[ 2.5451 ]
[ 2.5537 ] tegrahost --chip 0x21 --align cboot.bin
[ 2.5589 ]
[ 2.5629 ] tegrahost --magicid EBT --appendsigheader cboot.bin cboot.bin_blheader
[ 2.5725 ]
[ 2.5780 ] tegrasign --key None --list cboot.bin_list.xml
[ 2.5822 ] Assuming zero filled SBK key
[ 2.6270 ]
[ 2.6383 ] tegrahost --updatesigheader cboot.bin_blheader.encrypt cboot.bin_blheader.hash zerosbk
[ 2.6508 ]
[ 2.6629 ] tegrahost --chip 0x21 --align tegra210-p3448-0002-p3449-0000-b00.dtb
[ 2.6722 ]
[ 2.6826 ] tegrahost --magicid DTB --appendsigheader tegra210-p3448-0002-p3449-0000-b00.dtb tegra210-p3448-0002-p3449-0000-b00.dtb_blheader
[ 2.6909 ]
[ 2.6955 ] tegrasign --key None --list tegra210-p3448-0002-p3449-0000-b00.dtb_list.xml
[ 2.6985 ] Assuming zero filled SBK key
[ 2.7117 ]
[ 2.7199 ] tegrahost --updatesigheader tegra210-p3448-0002-p3449-0000-b00.dtb_blheader.encrypt tegra210-p3448-0002-p3449-0000-b00.dtb_blheader.hash zerosbk
[ 2.7287 ]
[ 2.7312 ] Sending bootloader and pre-requisite binaries
[ 2.7416 ] tegrarcm --download ebt cboot.bin.encrypt 0 0 --download rp1 tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt 0
[ 2.7471 ] Applet version 00.01.0000
[ 2.8598 ] Sending ebt
[ 2.8637 ] […] 100%
[ 3.0399 ] Sending rp1
[ 3.0547 ] […] 100%
[ 3.2019 ]
[ 3.2100 ] tegrarcm --boot recovery
[ 3.2154 ] Applet version 00.01.0000
[ 3.3777 ]
[ 3.3799 ] Retrieving storage infomation
[ 3.3878 ] tegrarcm --oem platformdetails storage storage_info.bin
[ 3.3946 ] Applet is not running on device. Continue with Bootloader
[ 4.0067 ]
[ 4.0183 ] tegradevflash --oem platformdetails storage storage_info.bin
[ 4.0295 ] Cboot version 00.01.0000
[ 4.1075 ] Saved platform info in storage_info.bin
[ 4.1522 ]
[ 4.1528 ] Flashing the device
[ 4.1608 ] tegradevflash --pt flash.xml.bin --storageinfo storage_info.bin --create
[ 4.1661 ] Cboot version 00.01.0000
[ 4.2620 ] Writing partition GPT with gpt.bin
[ 4.2675 ] […] 100%
[ 4.2957 ] Writing partition PT with crc-flash.xml.bin
[ 4.7468 ] […] 100%
[ 4.7885 ] Writing partition PT-1 with crc-flash.xml.bin
[ 4.8177 ] […] 100%
[ 4.8761 ] Writing partition NVC with nvtboot.bin.encrypt
[ 4.9129 ] […] 100%
[ 4.9667 ] Writing partition TBC with nvtboot_cpu.bin.encrypt
[ 5.0109 ] […] 100%
[ 5.0593 ] Writing partition RP1 with tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt
[ 5.1198 ] […] 100%
[ 5.1804 ] Writing partition EBT with cboot.bin.encrypt
[ 5.2443 ] […] 100%
[ 5.3350 ] Writing partition WB0 with warmboot.bin.encrypt
[ 5.3983 ] […] 100%
[ 5.4275 ] Writing partition BPF with sc7entry-firmware.bin.encrypt
[ 5.4894 ] […] 100%
[ 5.5289 ] Writing partition NVC-1 with nvtboot.bin.encrypt
[ 5.5884 ] […] 100%
[ 5.6429 ] Writing partition TBC-1 with nvtboot_cpu.bin.encrypt
[ 5.7160 ] […] 100%
[ 5.7625 ] Writing partition RP1-1 with tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt
[ 5.8340 ] […] 100%
[ 5.8942 ] Writing partition EBT-1 with cboot.bin.encrypt
[ 5.9682 ] […] 100%
[ 6.0583 ] Writing partition WB0-1 with warmboot.bin.encrypt
[ 6.1410 ] […] 100%
[ 6.1763 ] Writing partition BPF-1 with sc7entry-firmware.bin.encrypt
[ 6.2537 ] […] 100%
[ 6.2901 ] Writing partition VER_b with jetson-nano-devkit-emmc_bootblob_ver.txt
[ 6.3660 ] […] 100%
[ 6.4035 ] Writing partition VER with jetson-nano-devkit-emmc_bootblob_ver.txt
[ 6.4720 ] […] 100%
[ 6.5077 ] Writing partition APP with core-image-sato-dev.ext4.img
[ 6.5742 ] […] 100%
[ 82.9661 ] Writing partition DTB with tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt
[ 84.0556 ] […] 100%
[ 84.1112 ] Writing partition TOS with tos-mon-only.img.encrypt
[ 84.1580 ] […] 100%
[ 84.1916 ] Warning: EKS partition magic header mismatch!
[ 84.2439 ] Writing partition EKS with eks.img
[ 84.2473 ] […] 100%
[ 84.2691 ] Writing partition LNX with boot.img.encrypt
[ 84.3174 ] […] 100%
[ 84.4121 ] Writing partition DTB-1 with tegra210-p3448-0002-p3449-0000-b00.dtb.encrypt
[ 84.4777 ] […] 100%
[ 84.5344 ] Writing partition TOS-1 with tos-mon-only.img.encrypt
[ 84.5901 ] […] 100%
[ 84.6305 ] Writing partition EKS-1 with eks.img
[ 84.6799 ] […] 100%
[ 84.7109 ] Writing partition LNX-1 with boot.img.encrypt
[ 84.7600 ] […] 100%
[ 84.8686 ] Writing partition BMP with bmp.blob
[ 84.9282 ] […] 100%
[ 84.9722 ] Writing partition RP4 with rp4.blob
[ 85.0237 ] […] 100%
[ 85.1283 ]
[ 85.1384 ] tegradevflash --write BCT jetson-nano-devkit-emmc.bct
[ 85.1452 ] Cboot version 00.01.0000
[ 85.2241 ] Writing partition BCT with jetson-nano-devkit-emmc.bct
[ 85.2313 ] […] 100%
[ 85.6719 ]
[ 85.6723 ] Flashing completed

[ 85.6727 ] Coldbooting the device
[ 85.6824 ] tegradevflash --reboot coldboot
[ 85.6865 ] Cboot version 00.01.0000
[ 85.7710 ]
~/yocto-tegra/tegra_flash
Removing temp directory /tmp/tmp.dqrpz9m9ZD


but i can not see this:

  1. after flashing, the board can not be startet correctly. It hangs, the usb connection does not exist any more…

Can someone give me some tipps? thanks a lot in advance.

Im not very familiar with the docs you posted however, the below has always worked for me, not sure why they talk about doing it differently at the site you posted, id have to read it thoroughly tomorrow.

the below instructions work for me

after you have the image tgz, extract it to a directory

cd thatdirectory and run ./doflash.sh

Hi Scottkvps23,

thanks for your reply.
this repository looks more complete, but I get this error:


bitbake demo-image-full
Loading cache: 100% |#############################################################################| Time: 0:00:00
Loaded 4260 entries from dependency cache.
Parsing recipes: 100% |###########################################################################| Time: 0:00:00
Parsing of 2769 .bb files complete (2768 cached, 1 parsed). 4261 targets, 119 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies

Build Configuration:
BB_VERSION = “2.0.0”
BUILD_SYS = “x86_64-linux”
NATIVELSBSTRING = “universal”
TARGET_SYS = “aarch64-oe4t-linux”
MACHINE = “jetson-nano-devkit-emmc”
DISTRO = “tegrademo”
DISTRO_VERSION = “4.0+snapshot-20220421”
TUNE_FEATURES = “aarch64 armv8a crc”
TARGET_FPU = “”
meta = “HEAD:0674ae7bc46ebfa90c55bbedec6b22dc5f48dacf”
meta-tegra
contrib = “HEAD:c611c7c0b74594201c3061b69be1c7e339dd3260”
meta-oe
meta-python
meta-networking
meta-filesystems = “HEAD:2e0f15d3f48f49e3e414f4a51b957e52fe1c0d6a”
meta-virtualization = “HEAD:1f9c37e1a67a269833605a083e26538b130e4d8e”
meta-tegra-community = “HEAD:56279d88cdb87aa4b566db72658e8daed3a38930”
meta-tegra-support
meta-demo-ci
meta-tegrademo = “master:5120a08b5be48c409f51193d6ab81806af8c2e26”

Initialising tasks: 100% |########################################################################| Time: 0:00:05
Sstate summary: Wanted 3476 Local 0 Mirrors 0 Missed 3476 Current 264 (0% match, 7% complete)
NOTE: Executing Tasks
WARNING: l4t-nvidia-glheaders-32.7.1-20220219090344-r0 do_fetch: Failed to fetch URL https://repo.download.nvidia.com/jetson/t186/pool/main/n/nvidia-l4t-graphics-demos/nvidia-l4t-graphics-demos_32.7.1-20220219090344_arm64.deb;subdir=l4t-graphics-demos, attempting MIRRORS if available
ERROR: l4t-nvidia-glheaders-32.7.1-20220219090344-r0 do_fetch: Fetcher failure: Fetch command export PSEUDO_DISABLED=1; export DBUS_SESSION_BUS_ADDRESS=“unix:path=/run/user/1000/bus,guid=d64df2f3a7829fc38d2a1210625e9955”; export SSH_AGENT_PID=“1703”; export SSH_AUTH_SOCK="/run/user/1000/keyring/ssh"; export PATH="/home/nian/tegra-demo-distro/build/tmp/sysroots-uninative/x86_64-linux/usr/bin:/home/nian/tegra-demo-distro/layers/scripts:/home/nian/tegra-demo-distro/build/tmp/work/armv8a_tegra-oe4t-linux/l4t-nvidia-glheaders/32.7.1-20220219090344-r0/recipe-sysroot-native/usr/bin/aarch64-oe4t-linux:/home/nian/tegra-demo-distro/build/tmp/work/armv8a_tegra-oe4t-linux/l4t-nvidia-glheaders/32.7.1-20220219090344-r0/recipe-sysroot/usr/bin/crossscripts:/home/nian/tegra-demo-distro/build/tmp/work/armv8a_tegra-oe4t-linux/l4t-nvidia-glheaders/32.7.1-20220219090344-r0/recipe-sysroot-native/usr/sbin:/home/nian/tegra-demo-distro/build/tmp/work/armv8a_tegra-oe4t-linux/l4t-nvidia-glheaders/32.7.1-20220219090344-r0/recipe-sysroot-native/usr/bin:/home/nian/tegra-demo-distro/build/tmp/work/armv8a_tegra-oe4t-linux/l4t-nvidia-glheaders/32.7.1-20220219090344-r0/recipe-sysroot-native/sbin:/home/nian/tegra-demo-distro/build/tmp/work/armv8a_tegra-oe4t-linux/l4t-nvidia-glheaders/32.7.1-20220219090344-r0/recipe-sysroot-native/bin:/home/nian/tegra-demo-distro/repos/poky/bitbake/bin:/home/nian/tegra-demo-distro/build/tmp/hosttools"; export HOME="/home/nian"; /usr/bin/env wget -t 2 -T 30 --passive-ftp -P /home/nian/tegra-demo-distro/build/downloads ‘https://repo.download.nvidia.com/jetson/t186/pool/main/n/nvidia-l4t-graphics-demos/nvidia-l4t-graphics-demos_32.7.1-20220219090344_arm64.deb’ --progress=dot -v failed with exit code 5, no output
ERROR: l4t-nvidia-glheaders-32.7.1-20220219090344-r0 do_fetch: Bitbake Fetcher Error: FetchError(‘Unable to fetch URL from any source.’, ‘https://repo.download.nvidia.com/jetson/t186/pool/main/n/nvidia-l4t-graphics-demos/nvidia-l4t-graphics-demos_32.7.1-20220219090344_arm64.deb;subdir=l4t-graphics-demos’)
ERROR: Logfile of failure stored in: /home/nian/tegra-demo-distro/build/tmp/work/armv8a_tegra-oe4t-linux/l4t-nvidia-glheaders/32.7.1-20220219090344-r0/temp/log.do_fetch.6749
ERROR: Task (/home/nian/tegra-demo-distro/layers/meta-tegra/recipes-graphics/l4t-graphics-demos/l4t-nvidia-glheaders_32.7.1.bb:do_fetch) failed with exit code ‘1’
NOTE: Tasks Summary: Attempted 1262 tasks of which 1257 didn’t need to be rerun and 1 failed.

Summary: 1 task failed:
/home/nian/tegra-demo-distro/layers/meta-tegra/recipes-graphics/l4t-graphics-demos/l4t-nvidia-glheaders_32.7.1.bb:do_fetch
Summary: There was 1 WARNING message.
Summary: There were 2 ERROR messages, returning a non-zero exit code.

seems to be a simple timeout error rerun bitbake to build it, see if the download works, i just manually downloaded it fine.

1 Like

Thanks a lot!
Solved it manually.
Solution: How to do_fetch by hand in a Yocto Project - Stack Overflow

This reporitery also works for me. But without UART driver, how can we communication with the system?

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