PROCESSOR-SDK-AM64X: load image + device tree from U-Boot prompt

Hi Jonas,
I'm attaching a PDF on flashing/booting eMMC on AM64x GP EVM.
The section "3 Booting Linux via UART Using NFS" in the attached PDF describes loading kernel/dtb via TFTP
Hope it is helpful.
Best,
-Hong

0728.Booting_Linux_from_eMMC_AM64x_GPEVM.pdf

Thanks Hong Guan64,

I was able to shift over the Image and the device tree using NFS on my host machine.
However, the kernel does not boot successfully. Arago starts to boot, but stops in the emergency mode and asks for a password.
I clicked enter as Arago afaik doesn't have a password but it says login incorrect. Any thoughts on this issue?
Attached a screenshot as well if that helps.

Hi Jonas,
The issue seems related to rootfs.
Can we upload the full boot log as an attachment?
Best,
-Hong

Hi Hong,

You can find the full bot log here: https://pastebin.com/H757yc0R

Best,
Jonas

Hi Jonas,
Will you upload the log as an attachment in the e2e ticket instead?
The link was blocked when accessing it from TI network.
Best,
-Hong

=> setenv serverip 192.168.178.39
=> setenv ipaddr 192.168.178.50
=> setenv rootpath /tftp/nfs_share
=> setenv bootargs console=${console} ${optargs} root=/dev/nfs nfsroot=${serverip}:${rootpath},nolock,v3 rw ip=${ipaddr}:::::eth0
=> tftp ${loadaddr} Image
link up on port 1, speed 100, full duplex
Using ethernet@8000000 device
TFTP from server 192.168.178.39; our IP address is 192.168.178.50
Filename 'Image'.
Load address: 0x82000000
Loading: #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #############
         3.8 MiB/s
done
Bytes transferred = 19268096 (1260200 hex)
=> tftp ${fdtaddr} k3-am642-evm.dtb
link up on port 1, speed 100, full duplex
Using ethernet@8000000 device
TFTP from server 192.168.178.39; our IP address is 192.168.178.50
Filename 'k3-am642-evm.dtb'.
Load address: 0x88000000
Loading: ####
         2.4 MiB/s
done
Bytes transferred = 53223 (cfe7 hex)
=> booti ${loadaddr} - ${fdtaddr}
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
   Loading Device Tree to 000000008fff0000, end 000000008fffffe6 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.10.41-g4c2eade9f7 (oe-user@oe-host) (aarch64-poky-linux-gcc (GCC) 10.2.0, GNU ld (GNU Binutils) 2.36.1.20210209) #1 SMP PREEMPT Tue Jul 20 17:23:27 UTC 2021
[    0.000000] Machine model: Texas Instruments AM642 EVM
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created DMA memory pool at 0x00000000a0000000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a0000000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x00000000a0100000, size 15 MiB
[    0.000000] OF: reserved mem: initialized node r5f-memory@a0100000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x00000000a1000000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a1000000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x00000000a1100000, size 15 MiB
[    0.000000] OF: reserved mem: initialized node r5f-memory@a1100000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x00000000a2000000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a2000000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x00000000a2100000, size 15 MiB
[    0.000000] OF: reserved mem: initialized node r5f-memory@a2100000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x00000000a3000000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node r5f-dma-memory@a3000000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x00000000a3100000, size 15 MiB
[    0.000000] OF: reserved mem: initialized node r5f-memory@a3100000, compatible id shared-dma-pool
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000080000000-0x00000000ffffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080000000-0x000000009e7fffff]
[    0.000000]   node   0: [mem 0x000000009e800000-0x00000000a3ffffff]
[    0.000000]   node   0: [mem 0x00000000a4000000-0x00000000a4ffffff]
[    0.000000]   node   0: [mem 0x00000000a5000000-0x00000000a57fffff]
[    0.000000]   node   0: [mem 0x00000000a5800000-0x00000000ffffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000ffffffff]
[    0.000000] cma: Reserved 512 MiB at 0x00000000c0000000
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.1 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: Trusted OS migration not required
[    0.000000] psci: SMC Calling Convention v1.2
[    0.000000] percpu: Embedded 2 pages/cpu s49880 r8192 d73000 u131072
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] CPU features: detected: GIC system register CPU interface
[    0.000000] Built 1 zonelists, mobility grouping off.  Total pages: 32736
[    0.000000] Kernel command line: console=ttyS2,115200n8 root=/dev/nfs nfsroot=192.168.178.39:/tftp/nfs_share,nolock,v3 rw ip=192.168.178.50:::::eth0
[    0.000000] Dentry cache hash table entries: 262144 (order: 5, 2097152 bytes, linear)
[    0.000000] Inode-cache hash table entries: 131072 (order: 4, 1048576 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 1448768K/2097152K available (11008K kernel code, 1344K rwdata, 4224K rodata, 1856K init, 758K bss, 124096K reserved, 524288K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=2.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[    0.000000] GICv3: 256 SPIs implemented
[    0.000000] GICv3: 0 Extended SPIs implemented
[    0.000000] GICv3: Distributor has no Range Selector support
[    0.000000] GICv3: 16 PPIs implemented
[    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000001840000
[    0.000000] ITS [mem 0x01820000-0x0182ffff]
[    0.000000] GIC: enabling workaround for ITS: Socionext Synquacer pre-ITS
[    0.000000] ITS@0x0000000001820000: allocated 1048576 Devices @a4000000 (flat, esz 8, psz 64K, shr 0)
[    0.000000] ITS: using cache flushing for cmd queue
[    0.000000] GICv3: using LPI property table @0x00000000a58c0000
[    0.000000] GIC: using cache flushing for LPI property table
[    0.000000] GICv3: CPU0: using allocated LPI pending table @0x00000000a58d0000
[    0.000000] random: get_random_bytes called from start_kernel+0x330/0x4dc with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 200.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x2e2049d3e8, max_idle_ns: 440795210634 ns
[    0.000005] sched_clock: 56 bits at 200MHz, resolution 5ns, wraps every 4398046511102ns
[    0.000305] Console: colour dummy device 80x25
[    0.000358] Calibrating delay loop (skipped), value calculated using timer frequency.. 400.00 BogoMIPS (lpj=800000)
[    0.000373] pid_max: default: 32768 minimum: 301
[    0.000459] LSM: Security Framework initializing
[    0.000555] Mount-cache hash table entries: 8192 (order: 0, 65536 bytes, linear)
[    0.000594] Mountpoint-cache hash table entries: 8192 (order: 0, 65536 bytes, linear)
[    0.002918] rcu: Hierarchical SRCU implementation.
[    0.003212] Platform MSI: msi-controller@1820000 domain created
[    0.003486] PCI/MSI: /bus@f4000/interrupt-controller@1800000/msi-controller@1820000 domain created
[    0.003590] EFI services will not be available.
[    0.004036] smp: Bringing up secondary CPUs ...
[    0.004792] Detected VIPT I-cache on CPU1
[    0.004833] GICv3: CPU1: found redistributor 1 region 0:0x0000000001860000
[    0.004847] GICv3: CPU1: using allocated LPI pending table @0x00000000a58e0000
[    0.004917] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.005046] smp: Brought up 1 node, 2 CPUs
[    0.005068] SMP: Total of 2 processors activated.
[    0.005078] CPU features: detected: 32-bit EL0 Support
[    0.005087] CPU features: detected: CRC32 instructions
[    0.013093] CPU: All CPU(s) started at EL2
[    0.013122] alternatives: patching kernel code
[    0.014320] devtmpfs: initialized
[    0.022056] KASLR disabled due to lack of seed
[    0.022344] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.022363] futex hash table entries: 512 (order: -1, 32768 bytes, linear)
[    0.024595] pinctrl core: initialized pinctrl subsystem
[    0.025201] DMI not present or invalid.
[    0.025819] NET: Registered protocol family 16
[    0.033775] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
[    0.034242] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.034353] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.034963] thermal_sys: Registered thermal governor 'step_wise'
[    0.034969] thermal_sys: Registered thermal governor 'power_allocator'
[    0.035384] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.035486] ASID allocator initialised with 65536 entries
[    0.062144] HugeTLB registered 16.0 GiB page size, pre-allocated 0 pages
[    0.062165] HugeTLB registered 512 MiB page size, pre-allocated 0 pages
[    0.062173] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.064083] cryptd: max_cpu_qlen set to 1000
[    0.067784] k3-chipinfo 43000014.chipid: Family:AM64X rev:SR1.0 JTAGID[0x0bb3802f] Detected
[    0.068400] vsys_5v0: supplied by evm_12v0
[    0.068719] vsys_3v3: supplied by evm_12v0
[    0.069114] vddb_3v3_display: supplied by vsys_3v3
[    0.070203] iommu: Default domain type: Translated
[    0.070618] SCSI subsystem initialized
[    0.071226] mc: Linux media interface: v0.10
[    0.071259] videodev: Linux video capture interface: v2.00
[    0.071345] pps_core: LinuxPPS API ver. 1 registered
[    0.071351] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.071369] PTP clock support registered
[    0.071406] EDAC MC: Ver: 3.0.0
[    0.072203] omap-mailbox 29020000.mailbox: omap mailbox rev 0x66fc9100
[    0.072412] omap-mailbox 29040000.mailbox: omap mailbox rev 0x66fc9100
[    0.072546] omap-mailbox 29060000.mailbox: omap mailbox rev 0x66fc9100
[    0.073291] FPGA manager framework
[    0.073405] Advanced Linux Sound Architecture Driver Initialized.
[    0.074503] clocksource: Switched to clocksource arch_sys_counter
[    0.075018] VFS: Disk quotas dquot_6.6.0
[    0.075126] VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
[    0.081515] NET: Registered protocol family 2
[    0.081762] IP idents hash table entries: 32768 (order: 2, 262144 bytes, linear)
[    0.083511] tcp_listen_portaddr_hash hash table entries: 4096 (order: 0, 65536 bytes, linear)
[    0.083668] TCP established hash table entries: 16384 (order: 1, 131072 bytes, linear)
[    0.083796] TCP bind hash table entries: 16384 (order: 2, 262144 bytes, linear)
[    0.084028] TCP: Hash tables configured (established 16384 bind 16384)
[    0.084194] UDP hash table entries: 2048 (order: 0, 65536 bytes, linear)
[    0.084289] UDP-Lite hash table entries: 2048 (order: 0, 65536 bytes, linear)
[    0.084527] NET: Registered protocol family 1
[    0.085184] RPC: Registered named UNIX socket transport module.
[    0.085199] RPC: Registered udp transport module.
[    0.085206] RPC: Registered tcp transport module.
[    0.085211] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.085229] PCI: CLS 0 bytes, default 64
[    0.085919] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[    0.090750] Initialise system trusted keyrings
[    0.091019] workingset: timestamp_bits=46 max_order=15 bucket_order=0
[    0.095858] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.096559] NFS: Registering the id_resolver key type
[    0.096600] Key type id_resolver registered
[    0.096607] Key type id_legacy registered
[    0.096682] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.096690] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[    0.096909] 9p: Installing v9fs 9p2000 file system support
[    0.141004] Key type asymmetric registered
[    0.141027] Asymmetric key parser 'x509' registered
[    0.141096] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243)
[    0.141105] io scheduler mq-deadline registered
[    0.141112] io scheduler kyber registered
[    0.143713] pinctrl-single f4000.pinctrl: 180 pins, size 720
[    0.144820] pinctrl-single a40000.timesync-router: 512 pins, size 2048
[    0.154167] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
[    0.170985] brd: module loaded
[    0.178842] loop: module loaded
[    0.179641] megasas: 07.714.04.00-rc1
[    0.182457] libphy: Fixed MDIO Bus: probed
[    0.183973] tun: Universal TUN/TAP device driver, 1.6
[    0.184711] igbvf: Intel(R) Gigabit Virtual Function Network Driver
[    0.184724] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[    0.184778] sky2: driver version 1.30
[    0.185883] VFIO - User Level meta-driver version: 0.3
[    0.187031] i2c /dev entries driver
[    0.188129] sdhci: Secure Digital Host Controller Interface driver
[    0.188139] sdhci: Copyright(c) Pierre Ossman
[    0.188785] sdhci-pltfm: SDHCI platform and OF driver helper
[    0.190012] ledtrig-cpu: registered to indicate activity on CPUs
[    0.190418] SMCCC: SOC_ID: ARCH_SOC_ID not implemented, skipping ....
[    0.191825] optee: probing for conduit method.
[    0.191867] optee: revision 3.12 (3d47a131)
[    0.192486] optee: initialized driver
[    0.194986] NET: Registered protocol family 17
[    0.195154] 9pnet: Installing 9P2000 support
[    0.195222] Key type dns_resolver registered
[    0.195378] Loading compiled-in X.509 certificates
[    0.209382] ti-sci 44043000.dmsc: ABI: 3.1 (firmware rev 0x0015 '21.5.0--v2021.05 (Terrific Llam')
[    0.242044] random: fast init done
[    0.246374] omap_i2c 20000000.i2c: bus 0 rev0.12 at 100 kHz
[    0.248351] pca953x 1-0022: supply vcc not found, using dummy regulator
[    0.248493] pca953x 1-0022: using AI
[    0.299984] Console: switching to mono frame buffer device 12x2
[    0.328770] ssd1307fb 1-003c: fb0: Solomon SSD1307 framebuffer device registered, using 192 bytes of video memory
[    0.328997] omap_i2c 20010000.i2c: bus 1 rev0.12 at 400 kHz
[    0.330227] omap_i2c 20020000.i2c: bus 2 rev0.12 at 100 kHz
[    0.331383] omap_i2c 20030000.i2c: bus 3 rev0.12 at 100 kHz
[    0.331767] ti-sci-intr bus@f4000:bus@4000000:interrupt-controller1: Interrupt Router 5 domain created
[    0.331916] ti-sci-intr bus@f4000:interrupt-controller0: Interrupt Router 3 domain created
[    0.332151] ti-sci-inta 48000000.interrupt-controller: Interrupt Aggregator domain 28 created
[    0.342267] j721e-pcie f102000.pcie: host bridge /bus@f4000/pcie@f102000 ranges:
[    0.342320] j721e-pcie f102000.pcie:       IO 0x0068001000..0x0068010fff -> 0x0068001000
[    0.342344] j721e-pcie f102000.pcie:      MEM 0x0068011000..0x006fffffff -> 0x0068011000
[    0.342367] j721e-pcie f102000.pcie:   IB MEM 0x0000000000..0x0fffffffff -> 0x0000000000
[    1.354925] j721e-pcie f102000.pcie: PCI host bridge to bus 0000:00
[    1.354946] pci_bus 0000:00: root bus resource [bus 00-ff]
[    1.354959] pci_bus 0000:00: root bus resource [io  0x0000-0xffff] (bus address [0x68001000-0x68010fff])
[    1.354969] pci_bus 0000:00: root bus resource [mem 0x68011000-0x6fffffff]
[    1.355019] pci 0000:00:00.0: [104c:b010] type 01 class 0x060400
[    1.355041] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0xfffffffff 64bit pref]
[    1.355125] pci 0000:00:00.0: supports D1
[    1.355134] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
[    1.357561] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[    1.359787] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[    1.359836] pci 0000:00:00.0: BAR 0: no space for [mem size 0x1000000000 64bit pref]
[    1.359846] pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x1000000000 64bit pref]
[    1.359857] pci 0000:00:00.0: PCI bridge to [bus 01]
[    1.360395] pcieport 0000:00:00.0: PME: Signaling with IRQ 42
[    1.361163] ti-bcdma 485c0100.dma-controller: Number of rings: 68
[    1.362389] ti-bcdma 485c0100.dma-controller: Channels: 24 (bchan: 12, tchan: 6, rchan: 6)
[    1.364289] ti-pktdma 485c0000.dma-controller: Number of rings: 288
[    1.371674] ti-pktdma 485c0000.dma-controller: Channels: 44 (tchan: 29, rchan: 15)
[    1.375132] printk: console [ttyS2] disabled
[    1.375221] 2800000.serial: ttyS2 at MMIO 0x2800000 (irq = 16, base_baud = 3000000) is a 8250
[    2.741216] printk: console [ttyS2] enabled
[    2.749031] spi-nor spi0.0: s28hs512t (65536 Kbytes)
[    2.802515] davinci_mdio 8000f00.mdio: davinci mdio revision 9.7, bus freq 1000000
[    2.810109] libphy: 8000f00.mdio: probed
[    2.816272] davinci_mdio 8000f00.mdio: phy[0]: device 8000f00.mdio:00, driver TI DP83867
[    2.824508] am65-cpsw-nuss 8000000.ethernet: initializing am65 cpsw nuss version 0x6BA00903, cpsw version 0x6BA80903 Ports: 3 quirks:00000002
[    2.837732] am65-cpsw-nuss 8000000.ethernet: set new flow-id-base 16
[    2.844467] am65-cpsw-nuss 8000000.ethernet: initialized cpsw ale version 1.4
[    2.851614] am65-cpsw-nuss 8000000.ethernet: ALE Table size 512
[    2.858166] pps pps0: new PPS source ptp0
[    2.862596] am65-cpsw-nuss 8000000.ethernet: CPTS ver 0x4e8a010c, freq:500000000, add_val:1 pps:1
[    2.875081] am65-cpts 39000000.cpts: CPTS ver 0x4e8a010c, freq:500000000, add_val:1 pps:0
[    2.885842] mmc0: CQHCI version 5.10
[    2.886764] gpio-mux mux-controller: 2-way mux-controller registered
[    2.903857] vdd_mmc1: supplied by vsys_3v3
[    2.909167] libphy: mdio_mux: probed
[    2.921332] mmc1: CQHCI version 5.10
[    2.921596] debugfs: Directory 'pd:114' with parent 'pm_genpd' already present!
[    2.932364] mmc0: SDHCI controller on fa10000.mmc [fa10000.mmc] using ADMA 64-bit
[    2.967974] mmc1: SDHCI controller on fa00000.mmc [fa00000.mmc] using ADMA 64-bit
[    2.987756] TI DP83867 8000f00.mdio:00: attached PHY driver [TI DP83867] (mii_bus:phy_addr=8000f00.mdio:00, irq=POLL)
[    3.001040] am65-cpsw-nuss 8000000.ethernet eth0: Link is Down
[    3.028584] mmc1: new ultra high speed SDR104 SDHC card at address aaaa
[    3.036128] mmcblk1: mmc1:aaaa SC16G 14.8 GiB
[    3.043039] mmc0: Command Queue Engine enabled
[    3.047532] mmc0: new HS400 MMC card at address 0001
[    3.052611]  mmcblk1: p1 p2
[    3.057144] mmcblk0: mmc0:0001 S0J56X 14.8 GiB
[    3.061960] mmcblk0boot0: mmc0:0001 S0J56X partition 1 31.5 MiB
[    3.068104] mmcblk0boot1: mmc0:0001 S0J56X partition 2 31.5 MiB
[    3.074241] mmcblk0rpmb: mmc0:0001 S0J56X partition 3 4.00 MiB, chardev (237:0)
[    3.083875]  mmcblk0: p1 p2 p3 p4
[    5.060016] am65-cpsw-nuss 8000000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off
[    5.086527] IP-Config: Guessing netmask 255.255.255.0
[    5.091584] IP-Config: Complete:
[    5.094953]      device=eth0, hwaddr=f4:84:4c:f9:59:b1, ipaddr=192.168.178.50, mask=255.255.255.0, gw=255.255.255.255
[    5.105594]      host=192.168.178.50, domain=, nis-domain=(none)
[    5.111602]      bootserver=255.255.255.255, rootserver=192.168.178.39, rootpath=
[    5.116947] ALSA device list:
[    5.127394]   No soundcards found.
[    5.162992] VFS: Mounted root (nfs filesystem) on device 0:19.
[    5.169503] devtmpfs: mounted
[    5.173514] Freeing unused kernel memory: 1856K
[    5.186553] Run /sbin/init as init process
[    5.854727] systemd[1]: System time before build time, advancing clock.
[    5.961210] systemd[1]: systemd 244.5+ running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR -SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN -PCRE2 default-hierarchy=hybrid)
[    5.983436] systemd[1]: Detected architecture arm64.

Welcome to Arago 2020.09!

[    6.043121] systemd[1]: Set hostname to <am64xx-evm>.
[    6.071432] random: systemd: uninitialized urandom read (16 bytes read)
[    6.078164] systemd[1]: Initializing machine ID from random generator.
[    6.085001] systemd[1]: Installed transient /etc/machine-id file.
[    6.778990] systemd[1]: /lib/systemd/system/startwlansta.service:7: Unknown key name 'After' in section 'Service', ignoring.
[    6.795506] systemd[1]: /lib/systemd/system/startwlanap.service:7: Unknown key name 'After' in section 'Service', ignoring.
[    7.006996] systemd[1]: Binding to IPv6 address not available since kernel does not support IPv6.
[    7.015958] systemd[1]: Binding to IPv6 address not available since kernel does not support IPv6.
[    7.197283] random: systemd: uninitialized urandom read (16 bytes read)
[    7.204295] systemd[1]: system-getty.slice: unit configures an IP firewall, but the local system does not support BPF/cgroup firewalling.
[    7.216658] systemd[1]: (This warning is only shown for the first unit using IP firewalling.)
[    7.228735] systemd[1]: Created slice system-getty.slice.
[  OK  ] Created slice system-getty.slice.
[    7.254756] random: systemd: uninitialized urandom read (16 bytes read)
[    7.262988] systemd[1]: Created slice system-serial\x2dgetty.slice.
[  OK  ] Created slice system-serial\x2dgetty.slice.
[    7.286749] random: systemd: uninitialized urandom read (16 bytes read)
[    7.294936] systemd[1]: Created slice system-syslog\x2dng.slice.
[  OK  ] Created slice system-syslog\x2dng.slice.
[    7.320256] systemd[1]: Created slice User and Session Slice.
[  OK  ] Created slice User and Session Slice.
[    7.343157] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[  OK  ] Started Dispatch Password …ts to Console Directory Watch.
[    7.367067] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[  OK  ] Started Forward Password R…uests to Wall Directory Watch.
[    7.391013] systemd[1]: Reached target Paths.
[  OK  ] Reached target Paths.
[    7.410796] systemd[1]: Reached target Remote File Systems.
[  OK  ] Reached target Remote File Systems.
[    7.430777] systemd[1]: Reached target Slices.
[  OK  ] Reached target Slices.
[    7.450848] systemd[1]: Reached target Swap.
[  OK  ] Reached target Swap.
[    7.472449] systemd[1]: Listening on RPCbind Server Activation Socket.
[  OK  ] Listening on RPCbind Server Activation Socket.
[    7.494824] systemd[1]: Reached target RPC Port Mapper.
[  OK  ] Reached target RPC Port Mapper.
[    7.525264] systemd[1]: Listening on Process Core Dump Socket.
[  OK  ] Listening on Process Core Dump Socket.
[    7.547155] systemd[1]: Listening on initctl Compatibility Named Pipe.
[  OK  ] Listening on initctl Compatibility Named Pipe.
[    7.601205] systemd[1]: Condition check resulted in Journal Audit Socket being skipped.
[    7.611523] systemd[1]: Listening on Journal Socket (/dev/log).
[  OK  ] Listening on Journal Socket (/dev/log).
[    7.635540] systemd[1]: Listening on Journal Socket.
[  OK  ] Listening on Journal Socket.
[    7.652430] systemd[1]: Listening on Network Service Netlink Socket.
[  OK  ] Listening on Network Service Netlink Socket.
[    7.676714] systemd[1]: Listening on udev Control Socket.
[  OK  ] Listening on udev Control Socket.
[    7.699261] systemd[1]: Listening on udev Kernel Socket.
[  OK  ] Listening on udev Kernel Socket.
[    7.728813] systemd[1]: Mounting Huge Pages File System...
         Mounting Huge Pages File System...
[    7.752778] systemd[1]: Mounting POSIX Message Queue File System...
         Mounting POSIX Message Queue File System...
[    7.784553] systemd[1]: Mounting Kernel Debug File System...
         Mounting Kernel Debug File System...
[    7.822088] systemd[1]: Mounting Temporary Directory (/tmp)...
         Mounting Temporary Directory (/tmp)...
[    7.839136] systemd[1]: Condition check resulted in Create list of static device nodes for the current kernel being skipped.
[    7.863056] systemd[1]: Started Hardware RNG Entropy Gatherer Daemon.
[  OK  ] Started Hardware RNG Entropy Gather[    7.873812] random: crng init done
[    7.878985] random: 6 urandom warning(s) missed due to ratelimiting
er Daemon.
[    7.904577] systemd[1]: Starting RPC Bind...
         Starting RPC Bind...
[    7.925617] systemd[1]: Condition check resulted in File System Check on Root Device being skipped.
[    7.948797] systemd[1]: Starting Journal Service...
         Starting Journal Service...
[    8.047531] systemd[1]: Starting Load Kernel Modules...
         Starting Load Kernel Modules...
[    8.078050] systemd[1]: Starting Remount Root and Kernel File Systems...
         Starting Remount Root and Kernel File Systems...
[    8.123508] systemd[1]: Starting udev Coldplug all Devices...
         Starting udev Coldplug all Devices...
[    8.231576] systemd[1]: Mounted Huge Pages File System.
[  OK  ] Mounted Huge Pages File System.
[    8.279869] systemd[1]: Mounted POSIX Message Queue File System.
[  OK  ] Mounted POSIX Message Queue File System.
[    8.319897] systemd[1]: Mounted Kernel Debug File System.
[  OK  ] Mounted Kernel Debug File System.
[    8.367593] systemd[1]: Started Journal Service.
[  OK  ] Started Journal Service.
[  OK  ] Started RPC Bind.
[  OK  ] Mounted Temporary Directory (/tmp).
[FAILED] Failed to start Load Kernel Modules.
See 'systemctl status systemd-modules-load.service' for details.
[  OK  ] Started Remount Root and Kernel File Systems.
         Mounting Kernel Configuration File System...
         Starting Flush Journal to Persistent Storage...
         Starting Apply Kernel Variables...
         Starting Create System Users...
[    8.620746] systemd-journald[151]: Received client request to flush runtime journal.
[  OK  ] Mounted Kernel Configuration File System.
[  OK  ] Started Flush Journal to Persistent Storage.
[  OK  ] Started Apply Kernel Variables.
[FAILED] Failed to start Create System Users.
See 'systemctl status systemd-sysusers.service' for details.
         Starting Create Static Device Nodes in /dev...
[  OK  ] Started Create Static Device Nodes in /dev.
[  OK  ] Reached target Local File Systems (Pre).
         Mounting /media/ram...
         Mounting /var/volatile...
         Starting udev Kernel Device Manager...
[FAILED] Failed to mount /media/ram.
See 'systemctl status media-ram.mount' for details.
[DEPEND] Dependency failed for Local File Systems.
[  OK  ] Mounted /var/volatile.
[  OK  ] Stopped Dispatch Password …ts to Console Directory Watch.
[  OK  ] Stopped Forward Password R…uests to Wall Directory Watch.
[  OK  ] Reached target Timers.
[  OK  ] Reached target Network (Pre).
[  OK  ] Reached target Login Prompts.
         Starting Synchronize System and HW clocks...
         Starting Load/Save Random Seed...
[  OK  ] Reached target Sockets.
[  OK  ] Started Emergency Shell.
[  OK  ] Reached target Emergency Mode.
         Starting Rebuild Dynamic Linker Cache...
         Starting Commit a transient machine-id on disk...
         Starting Create Volatile Files and Directories...
[FAILED] Failed to start Synchronize System and HW clocks.
See 'systemctl status sync-clocks.service' for details.
[  OK  ] Started Load/Save Random Seed.
[FAILED] Failed to start Commit a transient machine-id on disk.
See 'systemctl status systemd-machine-id-commit.service' for details.
[  OK  ] Started udev Kernel Device Manager.
         Starting Network Service...
[  OK  ] Started udev Coldplug all Devices.
[  OK  ] Started Create Volatile Files and Directories.
         Starting Run pending postinsts...
         Starting Rebuild Journal Catalog...
[FAILED] Failed to start Network Time Synchronization.
See 'systemctl status systemd-timesyncd.service' for details.
[  OK  ] Reached target System Time Set.
[  OK  ] Reached target System Time Synchronized.
         Starting Update UTMP about System Boot/Shutdown...
[  OK  ] Started Network Service.
         Starting Wait for Network to be Configured...
[FAILED] Failed to start Network Name Resolution.
See 'systemctl status systemd-resolved.service' for details.
[  OK  ] Reached target Network.
[  OK  ] Reached target Host and Network Name Lookups.
[  OK  ] Started NFS status monitor for NFSv2/3 locking..
[  OK  ] Stopped Network Time Synchronization.
[FAILED] Failed to start Network Time Synchronization.
See 'systemctl status systemd-timesyncd.service' for details.
[FAILED] Failed to start Rebuild Journal Catalog.
See 'systemctl status systemd-journal-catalog-update.service' for details.
[  OK  ] Stopped Network Name Resolution.
[FAILED] Failed to start Network Name Resolution.
See 'systemctl status systemd-resolved.service' for details.
[  OK  ] Stopped Network Time Synchronization.
[FAILED] Failed to start Network Time Synchronization.
See 'systemctl status systemd-timesyncd.service' for details.
[  OK  ] Started Update UTMP about System Boot/Shutdown.
[  OK  ] Stopped Network Name Resolution.
[FAILED] Failed to start Network Name Resolution.
See 'systemctl status systemd-resolved.service' for details.
[  OK  ] Stopped Network Time Synchronization.
[FAILED] Failed to start Network Time Synchronization.
See 'systemctl status systemd-timesyncd.service' for details.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Stopped Network Name Resolution.
[FAILED] Failed to start Network Name Resolution.
See 'systemctl status systemd-resolved.service' for details.
[  OK  ] Stopped Network Time Synchronization.
[FAILED] Failed to start Network Time Synchronization.
See 'systemctl status systemd-timesyncd.service' for details.
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Stopped Network Name Resolution.
[FAILED] Failed to start Network Name Resolution.
See 'systemctl status systemd-resolved.service' for details.
[  OK  ] Stopped Network Time Synchronization.
[FAILED] Failed to start Network Time Synchronization.
See 'systemctl status systemd-timesyncd.service' for details.
[FAILED] Failed to start Run pending postinsts.
See 'systemctl status run-postinsts.service' for details.
[  OK  ] Stopped Network Name Resolution.
[FAILED] Failed to start Network Name Resolution.
See 'systemctl status systemd-resolved.service' for details.
You are in emergency mode. After logging in, type "journalctl -xb" to view
system logs, "systemctl reboot" to reboot, "systemctl default" or "exit"
to boot into default mode.
Give root password for maintenance
(or press Control-D to continue): 

Hi Jonas,
Thanks for uploading the full log file.
It seems kernel booting is ok, but something is abnormal when mounting rootfs...
I'm passing it to my colleague for guidance.
Best,
-Hong

Hi Jonas,

I use the exact tftp+NFS setup on all my EVMs for my daily work. I had the same emergency mode issue a few times in the past, but solved it very quickly so now I don't even remember what was the root cause...

Please follow the following steps to rebuild the NFS filesystem on your PC to see if this solves the issue.

cd /tftp/
sudo -s         # become root privilage for ALL the commands below
rm -rf nfs_share
mkdir nfs_share
cd nfs_share/
tar xvf <processor-sdk>/filesystem/tisdk-default-image-am64xx-evm.tar.xz

Hi everyone,

thanks for the suggestion. I followed your steps, but unfortunately the issue remained.
However, I just found the mistake myself. I was missing permissions.
Resolved it with:

sudo chown -R nobody:nogroup /tftp/nfs_share/

sudo chmod 777 /tftp/nfs_share/

Best,
Jonas

Hi Jonas,

I suspect the permission is not the root cause. My NFS rootfs permission is

dev@uda:~$ ls -ld ~/opt
drwxrwxr-x 34 root root 4096 Nov  4 17:14 /home/lb/opt

What is the setting in your /etc/exports? Mine has

/home/lb/opt 192.168.88.0/24(rw,no_root_squash,no_all_squash,sync,no_subtree_check)

I meant it is a permission issue, but using 777 probably is not the best solution.

Hi Bin,

mine is: /tftp/nfs_share 192.168.178.0/24 (rw,sync,no_subtree_check)

Jonas