How to NFS boot imx8 qm static Mode?

Hello
I have Got A Ixzora Cariier board and Apalis Imx.8qm Module.
I’m trying to boot a system using NFS/TFTP Server(Static Mode).
My OS host system is Ubuntu 20.04.
I could load kernel (zimage) and dtb using Static configuration and boot kernel but nfs root-file-system mount is failing:
There is the result of log


## Executing script at 83100000
Using ethernet@5b040000 device
TFTP from server 10.42.0.1; our IP address is 10.42.0.80
Filename 'hdmitxfw.bin'.
Load address: 0x9c000000
Loading: #####################  0 Bytes
	 3.3 MiB/s
done
Bytes transferred = 106496 (1a000 hex)
Loading hdp firmware from 0x000000009c000000 offset 0x0000000000002000
Loading hdp firmware Complete
Loading DeviceTree: imx8qm-apalis-ixora-v1.2.dtb
Using ethernet@5b040000 device
TFTP from server 10.42.0.1; our IP address is 10.42.0.80
Filename 'imx8qm-apalis-ixora-v1.2.dtb'.
Load address: 0x83000000
Loading: ##################################  0 Bytes
	 9 MiB/s
done
Bytes transferred = 170028 (2982c hex)
Using ethernet@5b040000 device
TFTP from server 10.42.0.1; our IP address is 10.42.0.80
Filename 'overlays.txt'.
Load address: 0x87000000
Loading: #  0 Bytes
	 7.8 KiB/s
done
Bytes transferred = 43 (2b hex)
Applying Overlay: apalis-imx8_hdmi_overlay.dtbo
Using ethernet@5b040000 device
TFTP from server 10.42.0.1; our IP address is 10.42.0.80
Filename 'overlays/apalis-imx8_hdmi_overlay.dtbo'.
Load address: 0x87000000
Loading: #  0 Bytes
	 1 MiB/s
done
Bytes transferred = 2177 (881 hex)
Using ethernet@5b040000 device
TFTP from server 10.42.0.1; our IP address is 10.42.0.80
Filename 'Image.gz'.
Load address: 0x87000000
Loading: #################################################################
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	 ################################################################  0 Bytes
	 13 MiB/s
done
Bytes transferred = 10642316 (a2638c hex)
Uncompressed size: 25700864 = 0x1882A00
Bootargs: pci=nomsi root=/dev/nfs nfsroot=10.42.0.1:/srv/fs
## Flattened Device Tree blob at 83000000
   Booting using the fdt blob at 0x83000000
   Loading Device Tree to 00000000fd601000, end 00000000fd64dfff ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.4.193-5.7.0-devel+git.f78299297185 (oe-user@oe-host) (gcc version 9.3.0 (GCC)) #1 SMP PREEMPT Mon Jul 11 14:42:03 UTC 2022
[    0.000000] Machine model: Toradex Apalis iMX8QM V1.1 on Apalis Ixora V1.2 Carrier Board
[    0.000000] efi: Getting EFI parameters from FDT:
.
.
.
[    4.068640] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x00ffffff]
[    4.074947] pci 0000:00:00.0: reg 0x38: [mem 0x00000000-0x00ffffff pref]
[    4.081730] pci 0000:00:00.0: supports D1 D2
[    4.086029] pci 0000:00:00.0: PME# supported from D0 D1 D2 D3hot
[    4.098747] pci 0000:01:00.0: [1b4b:2b42] type 00 class 0x020000
[    4.104866] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit pref]
[    4.112156] pci 0000:01:00.0: reg 0x18: [mem 0x00000000-0x000fffff 64bit pref]
[    4.119724] pci 0000:01:00.0: supports D1 D2
[    4.124032] pci 0000:01:00.0: PME# supported from D0 D1 D3hot D3cold
[    4.124138] hub 3-1:1.0: USB hub found
[    4.130529] pci 0000:01:00.0: 2.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s x1 link at 0000:00:00.0 (capable of 4.000 Gb/s with 5 GT/s x1 link)
[    4.148049] hub 3-1:1.0: 3 ports detected
[    4.168338] pci 0000:00:00.0: BAR 0: assigned [mem 0x70000000-0x70ffffff]
[    4.175415] pci 0000:00:00.0: BAR 6: assigned [mem 0x71000000-0x71ffffff pref]
[    4.182667] pci 0000:00:00.0: BAR 15: assigned [mem 0x72000000-0x721fffff 64bit pref]
[    4.190533] pci 0000:01:00.0: BAR 0: assigned [mem 0x72000000-0x720fffff 64bit pref]
[    4.198325] pci 0000:01:00.0: BAR 2: assigned [mem 0x72100000-0x721fffff 64bit pref]
[    4.206128] pci 0000:00:00.0: PCI bridge to [bus 01-ff]
[    4.211373] pci 0000:00:00.0:   bridge window [mem 0x72000000-0x721fffff 64bit pref]
[    4.219497] pcieport 0000:00:00.0: PME: Signaling with IRQ 567
[    4.440242] usb 3-1.3: new low-speed USB device number 3 using ci_hdrc
[    4.462298] imx6q-pcie 5f000000.pcie: Phy link never came up
[    4.468037] imx6q-pcie 5f000000.pcie: failed to initialize host
[    4.474015] imx6q-pcie 5f000000.pcie: unable to add pcie port.
[    4.560308] input: PixArt USB Optical Mouse as /devices/platform/bus@5b000000/5b0e0000.usb/ci_hdrc.1/usb3/3-1/3-1.3/3-1.3:1.0/0003:093A:2510.0001/input/input1
[    4.575030] hid-generic 0003:093A:2510.0001: input,hidraw0: USB HID v1.11 Mouse [PixArt USB Optical Mouse] on usb-ci_hdrc.1-1.3/input0
[   33.764258] VDD_EXT_RGMII (LDO1): disabling
[   33.768481] pcie_switch: disabling
[   33.771897] 3v3_vmmc: disabling
[   33.775059] can1_supply: disabling
[   33.778480] can2_supply: disabling

[  103.396617] VFS: Unable to mount root fs via NFS, trying floppy.
[  103.403076] VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
[  103.410367] Please append a correct "root=" boot option; here are the available partitions:
[  103.418999] 0100           65536 ram0 
[  103.419000]  (driver?)
[  103.425142] 0101           65536 ram1 
[  103.425142]  (driver?)
[  103.431257] 0102           65536 ram2 
[  103.431258]  (driver?)
[  103.437376] 0103           65536 ram3 
[  103.437376]  (driver?)
[  103.443497] 0104           65536 ram4 
[  103.443497]  (driver?)
[  103.449610] 0105           65536 ram5 
[  103.449611]  (driver?)
[  103.455716] 0106           65536 ram6 
[  103.455716]  (driver?)
[  103.461833] 0107           65536 ram7 
[  103.461834]  (driver?)
[  103.467950] 0108           65536 ram8 
[  103.467951]  (driver?)
[  103.474070] 0109           65536 ram9 
[  103.474071]  (driver?)
[  103.480196] 010a           65536 ram10 
[  103.480196]  (driver?)
[  103.486397] 010b           65536 ram11 
[  103.486398]  (driver?)
[  103.492604] 010c           65536 ram12 
[  103.492605]  (driver?)
[  103.498806] 010d           65536 ram13 
[  103.498807]  (driver?)
[  103.505018] 010e           65536 ram14 
[  103.505019]  (driver?)
[  103.511220] 010f           65536 ram15 
[  103.511221]  (driver?)
[  103.517439] b300        15392768 mmcblk0 
[  103.517440]  driver: mmcblk
[  103.524257]   b301           49152 mmcblk0p1 594a73e7-01
[  103.524258] 
[  103.531067]   b302        15339520 mmcblk0p2 594a73e7-02
[  103.531068] 
[  103.537876] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
[  103.546148] CPU: 5 PID: 1 Comm: swapper/0 Not tainted 5.4.193-5.7.0-devel+git.f78299297185 #1
[  103.554675] Hardware name: Toradex Apalis iMX8QM V1.1 on Apalis Ixora V1.2 Carrier Board (DT)
[  103.563206] Call trace:
[  103.565662]  dump_backtrace+0x0/0x168
[  103.569322]  show_stack+0x14/0x20
[  103.572643]  dump_stack+0xb4/0x110
[  103.576045]  panic+0x158/0x324
[  103.579105]  mount_block_root+0x1d0/0x284
[  103.583114]  mount_root+0x124/0x158
[  103.586598]  prepare_namespace+0x15c/0x1c0
[  103.590689]  kernel_init_freeable+0x21c/0x248
[  103.595043]  kernel_init+0x10/0x100
[  103.598540]  ret_from_fork+0x10/0x1c
[  103.602120] SMP: stopping secondary CPUs
[  103.606053] Kernel Offset: disabled
[  103.609546] CPU features: 0x10002,2100600c
[  103.613643] Memory Limit: none
[  103.616700] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) ]---

i wrote a script bootloader to boot kernel zImage and DTB as bellow:

setenv my_bootcmd_dhcp 'echo Boot NFS static. . .;  
	setenv devtype tftp; 
	printenv devtype;
	 if test "${devtype}" = "tftp";
	 	setenv ipaddr "10.42.0.80";
	 	setenv serverip "10.42.0.1";
	 	setenv rootpath "srv/fs";
	 	printenv rootpath;
		setenv fdt_file imx8qm-apalis-ixora-v1.2.dtb
		source ${scriptaddr};
	  then
	  	 echo "finish . . .***";
	  fi'


run my_bootcmd_dhcp

My exports file,
/srv/fs *(no_root_squash,no_subtree_check,rw)

after that
sudo /etc/init.d/nfs-kernel-server restart
sudo mount core-image-minimal-apalis-imx8.ext4 /srv/fs

 sudo exportfs -r 
 sudo exportfs -u

and ftp config

$ sudo gedit /etc/xinetd.d/tftp
service tftp
{
	protocol = udp
	port = 69
	socket_type = dgram
	wait = yes
	user = nobody
	server = /usr/sbin/in.tftpd
	server_args = /tftpboot
	disable = no
}

and run:

$ sudo mkdir /tftp
$ sudo chmod -R 777 /srv/tftp
$ sudo /etc/init.d/xinetd restart

Any idea, how we can boot NFS static the I.mx8 apalis device rootfs?
Best regards,

Try specifying NFS version
nfsroot=10.42.0.1:/srv/fs,v3

Hello again,
when i wanna test it,i cant run scrip bootloader cmdline

	setenv my_bootcmd_dhcp 'echo Boot NFS static. . .;  
	setenv devtype tftp; 
	printenv devtype;
	 if test "${devtype}" = "tftp";
	 	setenv ipaddr "10.42.0.80";
	 	setenv serverip "10.42.0.1";
	 	setenv rootpath "srv/fs,v3";
	 	printenv rootpath;
		setenv fdt_file imx8qm-apalis-ixora-v1.2.dtb
		source ${scriptaddr};
	  then
	  	 echo "finish . . .***";
	  fi'


run my_bootcmd_dhcp

i face this error

Apalis iMX8 # run my_bootcmd_dhcp
Boot NFS static. . .
devtype=tftp
rootpath=srv/fs,v3
## Executing script at 83100000
Wrong image format for "source" command
Apalis iMX8 # 

really i dont know!!
why??
you can guide me
thank you

Hi Edward
I faced this error

Wrong image format for "source" command

Can you help me??

I changed it but it couldn’t boot…
unfortunately…

done
Bytes transferred = 10642316 (a2638c hex)
Uncompressed size: 25700864 = 0x1882A00
Bootargs: pci=nomsi root=/dev/nfs nfsroot=10.42.0.1:/srv/fs,v3,tcp
## Flattened Device Tree blob at 83000000
   Booting using the fdt blob at 0x83000000
   Loading Device Tree to 00000000fd601000, end 00000000fd64dfff ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.4.193-5.7.0-devel+git.f78299297185 (oe-user@oe-host) (gcc version 9.3.0 (GCC)) #1 SMP PREEMPT Mon Jul 11 14:42:03 UTC 2022
[    0.000000] Machine model: Toradex Apalis iMX8QM/QP on Apalis Evaluation Board
[    0.000000] efi: Getting EFI parameters from FDT:
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created DMA memory pool at 0x0000000090400000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node vdevbuffer, compatible id shared-dma-pool
[    0.000000] cma: Reserved 992 MiB at 0x00000000be000000
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem 0x0000000080200000-0x00000008ffffffff]
[    0.000000] NUMA: NODE_DATA [mem 0x8ff7c2500-0x8ff7c3fff]
[    0.000000] Zone ranges:
[    0.000000]   DMA32    [mem 0x0000000080200000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x00000008ffffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080200000-0x0000000083ffffff]
[    0.000000]   node   0: [mem 0x0000000086400000-0x0000000087ffffff]
[    0.000000]   node   0: [mem 0x0000000090000000-0x00000000901fffff]
[    0.000000]   node   0: [mem 0x0000000090500000-0x0000000091ffffff]
[    0.000000]   node   0: [mem 0x0000000094c00000-0x0000000094ffffff]
[    0.000000]   node   0: [mem 0x0000000095400000-0x00000000ffffffff]
[    0.000000]   node   0: [mem 0x0000000880000000-0x00000008ffffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x00000008ffffffff]
[    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: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.1
[    0.000000] percpu: Embedded 24 pages/cpu s58904 r8192 d31208 u98304
[    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] Speculative Store Bypass Disable mitigation not required
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 977508
[    0.000000] Policy zone: Normal
[    0.000000] Kernel command line: pci=nomsi root=/dev/nfs nfsroot=10.42.0.1:/srv/fs,v3,tcp
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0xba000000-0xbe000000] (64MB)
[    0.000000] Memory: 2783368K/3972096K available (14268K kernel code, 1226K rwdata, 6604K rodata, 2944K init, 1012K bss, 172920K reserved, 1015808K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=6, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu: 	RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=6.
[    0.000000] 	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=6
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[    0.000000] GICv3: 512 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: no VLPI support, no direct LPI support
[    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000051b00000
[    0.000000] ITS: No ITS available, not enabling LPIs
[    0.000000] random: get_random_bytes called from start_kernel+0x2b8/0x43c with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 8.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 440795202120 ns
[    0.000003] sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2199023255500ns
[    0.000706] Console: colour dummy device 80x25
[    0.001205] printk: console [tty0] enabled
[    0.001281] Calibrating delay loop (skipped), value calculated using timer frequency.. 16.00 BogoMIPS (lpj=32000)
[    0.001302] pid_max: default: 32768 minimum: 301
[    0.001384] LSM: Security Framework initializing
[    0.001455] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.001484] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.002897] ASID allocator initialised with 32768 entries
[    0.002978] rcu: Hierarchical SRCU implementation.
[    0.007639] EFI services will not be available.
[    0.007928] smp: Bringing up secondary CPUs ...
[    0.008712] Detected VIPT I-cache on CPU1
[    0.008740] GICv3: CPU1: found redistributor 1 region 0:0x0000000051b20000
[    0.008780] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.009562] Detected VIPT I-cache on CPU2
[    0.009577] GICv3: CPU2: found redistributor 2 region 0:0x0000000051b40000
[    0.009593] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[    0.010338] Detected VIPT I-cache on CPU3
[    0.010352] GICv3: CPU3: found redistributor 3 region 0:0x0000000051b60000
[    0.010367] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[    0.011940] CPU features: detected: EL2 vector hardening
[    0.011953] CPU features: detected: Branch predictor hardening
[    0.011958] CPU features: detected: Spectre-BHB
[    0.011961] Detected PIPT I-cache on CPU4
[    0.011976] GICv3: CPU4: found redistributor 100 region 0:0x0000000051b80000
[    0.011993] CPU4: Booted secondary processor 0x0000000100 [0x410fd082]
[    0.012774] Detected PIPT I-cache on CPU5
[    0.012785] GICv3: CPU5: found redistributor 101 region 0:0x0000000051ba0000
[    0.012797] CPU5: Booted secondary processor 0x0000000101 [0x410fd082]
[    0.012852] smp: Brought up 1 node, 6 CPUs
[    0.013005] SMP: Total of 6 processors activated.
[    0.013015] CPU features: detected: 32-bit EL0 Support
[    0.013027] CPU features: detected: CRC32 instructions
[    0.022738] CPU: All CPU(s) started at EL2
[    0.022774] alternatives: patching kernel code
[    0.023832] devtmpfs: initialized
[    0.042272] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.042312] futex hash table entries: 2048 (order: 5, 131072 bytes, linear)
[    0.069084] pinctrl core: initialized pinctrl subsystem
[    0.069607] DMI not present or invalid.
[    0.069874] NET: Registered protocol family 16
[    0.076286] DMA: preallocated 256 KiB pool for atomic allocations
[    0.076308] audit: initializing netlink subsys (disabled)
[    0.076473] audit: type=2000 audit(0.076:1): state=initialized audit_enabled=0 res=1
[    0.077047] cpuidle: using governor menu
[    0.078372] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.080244] Serial: AMBA PL011 UART driver
[    0.080298] imx mu driver is registered.
[    0.080322] imx rpmsg driver is registered.
[    0.131283] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.131309] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[    0.131322] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.131334] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[    0.132462] cryptd: max_cpu_qlen set to 1000
[    0.136299] ACPI: Interpreter disabled.
[    0.138548] iommu: Default domain type: Translated 
[    0.138678] vgaarb: loaded
[    0.139002] SCSI subsystem initialized
[    0.139338] usbcore: registered new interface driver usbfs
[    0.139379] usbcore: registered new interface driver hub
[    0.139417] usbcore: registered new device driver usb
[    0.141469] mc: Linux media interface: v0.10
[    0.141500] videodev: Linux video capture interface: v2.00
[    0.141573] pps_core: LinuxPPS API ver. 1 registered
[    0.141585] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.141608] PTP clock support registered
[    0.141981] EDAC MC: Ver: 3.0.0
[    0.143593] No BMan portals available!
[    0.143993] QMan: Allocated lookup table at (____ptrval____), entry count 65537
[    0.144790] No QMan portals available!
[    0.146124] No USDPAA memory, no 'fsl,usdpaa-mem' in device-tree
[    0.146715] FPGA manager framework
[    0.146802] Advanced Linux Sound Architecture Driver Initialized.
[    0.148339] imx-scu scu: NXP i.MX SCU Initialized
[    0.154836] random: fast init done
[    0.191702] imx8qm-pinctrl scu:pinctrl: initialized IMX pinctrl driver
[    0.195472] clocksource: Switched to clocksource arch_sys_counter
[    0.195652] VFS: Disk quotas dquot_6.6.0
[    0.195708] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.195893] pnp: PnP ACPI: disabled
[    0.224958] thermal_sys: Registered thermal governor 'step_wise'
[    0.224962] thermal_sys: Registered thermal governor 'power_allocator'
[    0.225807] NET: Registered protocol family 2
[    0.226023] IP idents hash table entries: 65536 (order: 7, 524288 bytes, linear)
[    0.227372] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, linear)
[    0.227431] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    0.227677] TCP bind hash table entries: 32768 (order: 7, 524288 bytes, linear)
[    0.228168] TCP: Hash tables configured (established 32768 bind 32768)
[    0.228272] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear)
[    0.228357] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes, linear)
[    0.228534] NET: Registered protocol family 1
[    0.228856] RPC: Registered named UNIX socket transport module.
[    0.228869] RPC: Registered udp transport module.
[    0.228879] RPC: Registered tcp transport module.
[    0.228889] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.228907] PCI: CLS 0 bytes, default 64
[    0.229643] hw perfevents: enabled with armv8_pmuv3 PMU driver, 7 counters available
[    0.231171] kvm [1]: IPA Size Limit: 40 bits
[    0.231875] kvm [1]: vgic-v2@52020000
[    0.231904] kvm [1]: GIC system register CPU interface enabled
[    0.232009] kvm [1]: vgic interrupt IRQ1
[    0.232144] kvm [1]: Hyp mode initialized successfully
[    0.235531] Initialise system trusted keyrings
[    0.235647] workingset: timestamp_bits=44 max_order=20 bucket_order=0
[    0.241317] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.241872] NFS: Registering the id_resolver key type
[    0.241903] Key type id_resolver registered
[    0.241912] Key type id_legacy registered
[    0.241929] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.241942] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[    0.241972] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    0.255443] Key type asymmetric registered
[    0.255467] Asymmetric key parser 'x509' registered
[    0.255505] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244)
[    0.255521] io scheduler mq-deadline registered
[    0.255532] io scheduler kyber registered
[    0.269890] imx6q-pcie 5f000000.pcie: 5f000000.pcie supply epdev_on not found, using dummy regulator
[    0.271805] EINJ: ACPI disabled.
[    0.386892] mxs-dma 5b810000.dma-apbh: initialized
[    0.388591] Bus freq driver module loaded
[    0.394866] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.399277] 5a060000.serial: ttyLP0 at MMIO 0x5a060010 (irq = 47, base_baud = 5000000) is a FSL_LPUART
[    0.399671] fsl-lpuart 5a060000.serial: DMA tx channel request failed, operating without tx DMA
[    0.399691] fsl-lpuart 5a060000.serial: DMA rx channel request failed, operating without rx DMA
[    0.400066] 5a070000.serial: ttyLP1 at MMIO 0x5a070010 (irq = 48, base_baud = 5000000) is a FSL_LPUART
[    0.400089] fsl-lpuart 5a070000.serial: Serial: Console lpuart rounded baud ratefrom 35971 to 115200
[    1.480477] printk: console [ttyLP1] enabled
[    1.485580] 5a080000.serial: ttyLP2 at MMIO 0x5a080010 (irq = 49, base_baud = 5000000) is a FSL_LPUART
[    1.495216] fsl-lpuart 5a080000.serial: DMA tx channel request failed, operating without tx DMA
[    1.503943] fsl-lpuart 5a080000.serial: DMA rx channel request failed, operating without rx DMA
[    1.513133] 5a090000.serial: ttyLP3 at MMIO 0x5a090010 (irq = 50, base_baud = 5000000) is a FSL_LPUART
[    1.525527] arm-smmu 51400000.iommu: probing hardware configuration...
[    1.532085] arm-smmu 51400000.iommu: SMMUv2 with:
[    1.536807] arm-smmu 51400000.iommu: 	stage 1 translation
[    1.542219] arm-smmu 51400000.iommu: 	stage 2 translation
[    1.547631] arm-smmu 51400000.iommu: 	nested translation
[    1.552958] arm-smmu 51400000.iommu: 	stream matching with 32 register groups
[    1.560110] arm-smmu 51400000.iommu: 	32 context banks (0 stage-2 only)
[    1.566740] arm-smmu 51400000.iommu: 	Supported page sizes: 0x61311000
[    1.573285] arm-smmu 51400000.iommu: 	Stage-1: 48-bit VA -> 48-bit IPA
[    1.579828] arm-smmu 51400000.iommu: 	Stage-2: 48-bit IPA -> 48-bit PA
[    1.657693] imx-drm display-subsystem: parent device of /bus@57240000/ldb@572410e0/lvds-channel@0 is not available
[    1.690999] brd: module loaded
[    1.700269] loop: module loaded
[    1.703785] zram: Added device: zram0
[    1.719541] tun: Universal TUN/TAP device driver, 1.6
[    1.726353] fec 5b040000.ethernet: Adding to iommu group 0
[    1.732971] pps pps0: new PPS source ptp0
[    1.741081] Freescale FM module, FMD API version 21.1.0
[    1.747200] Freescale FM Ports module
[    1.752526] VFIO - User Level meta-driver version: 0.3
[    1.761591] cdns-usb3 5b110000.usb3: Adding to iommu group 1
[    1.768234] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.774795] ehci-pci: EHCI PCI platform driver
[    1.780581] usbcore: registered new interface driver usb-storage
[    1.786672] usbcore: registered new interface driver usbserial_generic
[    1.793254] usbserial: USB Serial support registered for generic
[    1.799297] usbcore: registered new interface driver cp210x
[    1.804899] usbserial: USB Serial support registered for cp210x
[    1.810860] usbcore: registered new interface driver ftdi_sio
[    1.816633] usbserial: USB Serial support registered for FTDI USB Serial Device
[    1.823975] usbcore: registered new interface driver pl2303
[    1.829596] usbserial: USB Serial support registered for pl2303
[    1.835570] usbcore: registered new interface driver usb_serial_simple
[    1.842128] usbserial: USB Serial support registered for carelink
[    1.848248] usbserial: USB Serial support registered for zio
[    1.853930] usbserial: USB Serial support registered for funsoft
[    1.859967] usbserial: USB Serial support registered for flashloader
[    1.866347] usbserial: USB Serial support registered for google
[    1.872299] usbserial: USB Serial support registered for libtransistor
[    1.878855] usbserial: USB Serial support registered for vivopay
[    1.884892] usbserial: USB Serial support registered for moto_modem
[    1.891183] usbserial: USB Serial support registered for motorola_tetra
[    1.897829] usbserial: USB Serial support registered for nokia
[    1.903692] usbserial: USB Serial support registered for novatel_gps
[    1.910070] usbserial: USB Serial support registered for hp4x
[    1.915847] usbserial: USB Serial support registered for suunto
[    1.921795] usbserial: USB Serial support registered for siemens_mpi
[    1.935095] input: sc-powerkey as /devices/platform/sc-powerkey/input/input0
[    1.944856] imx-sc-rtc scu:rtc: registered as rtc1
[    1.950340] i2c /dev entries driver
[    1.964941] sdhci: Secure Digital Host Controller Interface driver
[    1.971150] sdhci: Copyright(c) Pierre Ossman
[    1.976121] Synopsys Designware Multimedia Card Interface Driver
[    1.984024] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.991635] sdhci-esdhc-imx 5b010000.mmc: Adding to iommu group 2
[    2.029698] mmc0: SDHCI controller on 5b010000.mmc [5b010000.mmc] using ADMA
[    2.039563] sdhci-esdhc-imx 5b020000.mmc: Adding to iommu group 2
[    2.047168] sdhci-esdhc-imx 5b030000.mmc: Adding to iommu group 2
[    2.058846] ledtrig-cpu: registered to indicate activity on CPUs
[    2.067523] caam 31400000.crypto: device ID = 0x0a16040000000100 (Era 9)
[    2.074271] caam 31400000.crypto: job rings = 2, qi = 0
[    2.092591] caam algorithms registered in /proc/crypto
[    2.099277] caam 31400000.crypto: caam pkc algorithms registered in /proc/crypto
[    2.106702] caam 31400000.crypto: registering rng-caam
[    2.112160] Device caam-keygen registered
[    2.119035] hidraw: raw HID events driver (C) Jiri Kosina
[    2.124618] crng init done
[    2.124803] usbcore: registered new interface driver usbhid
[    2.133020] usbhid: USB HID core driver
[    2.141118] No fsl,qman node
[    2.144068] Freescale USDPAA process driver
[    2.148341] fsl-usdpaa: no region found
[    2.152234] Freescale USDPAA process IRQ driver
[    2.169596] [VPU Decoder] warning: init rtx channel failed, ret: -517
[    2.176246] [VPU Decoder] failed to request mailbox, ret = -517
[    2.190390] [VPU Encoder] warning:  init rtx channel failed, ret: -517
[    2.197239] [VPU Encoder] warning:  init rtx channel failed, ret: -517
[    2.197679] mmc0: new HS400 Enhanced strobe MMC card at address 0001
[    2.203786] [VPU Encoder] fail to request mailbox, ret = -517
[    2.210923] mmcblk0: mmc0:0001 HAG4a2 14.7 GiB 
[    2.220852] mmcblk0boot0: mmc0:0001 HAG4a2 partition 1 8.00 MiB
[    2.227085] mmcblk0boot1: mmc0:0001 HAG4a2 partition 2 8.00 MiB
[    2.233206] mmcblk0rpmb: mmc0:0001 HAG4a2 partition 3 4.00 MiB, chardev (237:0)
[    2.240677] dvbdev: DVB: registering new adapter (PPM DVB adapter)
[    2.242458]  mmcblk0: p1 p2
[    2.247430] dvbdev: DVB: registering new adapter (PPM DVB adapter)
[    2.335272] imx-spdif sound-spdif: snd-soc-dummy-dai <-> 59020000.spdif mapping ok
[    2.342931] imx-spdif sound-spdif: ASoC: no DMI vendor name!
[    2.349931] imx-audmix imx-audmix.0: failed to find SAI platform device
[    2.356623] imx-audmix: probe of imx-audmix.0 failed with error -22
[    2.366456] pktgen: Packet Generator for packet performance testing. Version: 2.75
[    2.374699] NET: Registered protocol family 26
[    2.379697] NET: Registered protocol family 10
[    2.384762] Segment Routing with IPv6
[    2.388486] NET: Registered protocol family 17
[    2.392986] tsn generic netlink module v1 init...
[    2.397753] Key type dns_resolver registered
[    2.402419] registered taskstats version 1
[    2.406550] Loading compiled-in X.509 certificates
[    2.438152] mxs_phy 5b100000.usbphy: 5b100000.usbphy supply phy-3p0 not found, using dummy regulator
[    2.462558] usb_phy_generic bus@5b000000:usb3-phy: bus@5b000000:usb3-phy supply vcc not found, using dummy regulator
[    2.473325] usb_phy_generic bus@5b000000:usbphynop2: bus@5b000000:usbphynop2 supply vcc not found, using dummy regulator
[    2.485307] i2c i2c-2: LPI2C adapter registered
[    2.492855] sgtl5000 3-000a: sgtl5000 revision 0x11
[    3.047695] usb3503 3-0008: switched to HUB mode
[    3.052352] usb3503 3-0008: usb3503_probe: probed in hub mode
[    3.058207] i2c i2c-3: LPI2C adapter registered
[    3.066206] rtc-ds1307 4-0068: oscillator failed, set time!
[    3.072117] rtc-ds1307 4-0068: registered as rtc0
[    3.076869] i2c i2c-4: LPI2C adapter registered
[    3.082296] i2c i2c-5: LPI2C adapter registered
[    3.092172] imx6q-pcie 5f010000.pcie: pcie_ext clock source missing or invalid
[    3.092367] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[    3.099729] imx6q-pcie 5f000000.pcie: 5f000000.pcie supply epdev_on not found, using dummy regulator
[    3.115075] dpu-core 56180000.dpu: driver probed
[    3.122122] imx6q-pcie 5f000000.pcie: No cache used with register defaults set!
[    3.123935] dpu-core 57180000.dpu: driver probed
[    3.139255] pps pps0: new PPS source ptp0
[    3.146778] fec 5b040000.ethernet eth0: registered PHC device 0
[    3.156686]  xhci-cdns3: xHCI Host Controller
[    3.161071]  xhci-cdns3: new USB bus registered, assigned bus number 1
[    3.169043]  xhci-cdns3: hcc params 0x200073c8 hci version 0x100 quirks 0x0000001000018010
[    3.177955] hub 1-0:1.0: USB hub found
[    3.181746] hub 1-0:1.0: 1 port detected
[    3.185899]  xhci-cdns3: xHCI Host Controller
[    3.190280]  xhci-cdns3: new USB bus registered, assigned bus number 2
[    3.196831]  xhci-cdns3: Host supports USB 3.0 SuperSpeed
[    3.202294] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[    3.210833] hub 2-0:1.0: USB hub found
[    3.214627] hub 2-0:1.0: 1 port detected
[    3.219943] imx_usb 5b0d0000.usb: 5b0d0000.usb supply vbus not found, using dummy regulator
[    3.245558] imx6q-pcie 5f000000.pcie: PCIe PLL locked after 0 us.
[    3.439536] usb 1-1: new high-speed USB device number 2 using cdns-usb3
[    3.467571] imx6q-pcie 5f000000.pcie: host bridge /bus@5f000000/pcie@0x5f000000 ranges:
[    3.475659] imx6q-pcie 5f000000.pcie:    IO 0x6ff80000..0x6ff8ffff -> 0x00000000
[    3.483379] imx6q-pcie 5f000000.pcie:   MEM 0x60000000..0x6fefffff -> 0x60000000
[    3.536488] ci_hdrc ci_hdrc.1: EHCI Host Controller
[    3.541424] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 3
[    3.587708] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[    3.594119] hub 3-0:1.0: USB hub found
[    3.597975] hub 3-0:1.0: 1 port detected
[    3.603080] usb-storage 1-1:1.0: USB Mass Storage device detected
[    3.603781] gpio-fan gpio-fan: GPIO fan initialized
[    3.609426] scsi host0: usb-storage 1-1:1.0
[    3.616399] sdhci-esdhc-imx 5b020000.mmc: Got CD GPIO
[    3.654962] mmc1: SDHCI controller on 5b020000.mmc [5b020000.mmc] using ADMA
[    3.665453] sdhci-esdhc-imx 5b030000.mmc: Got CD GPIO
[    3.702294] mmc2: SDHCI controller on 5b030000.mmc [5b030000.mmc] using ADMA
[    3.735843] debugfs: Directory '59050000.sai' with parent 'apalis-imx8qm-sgtl5000' already present!
[    3.745519] asoc-simple-card sound: sgtl5000 <-> 59050000.sai mapping ok
[    3.752255] asoc-simple-card sound: ASoC: no DMI vendor name!
[    3.762960] imx8qxp-lpcg-clk 5b260000.clock-controller: ignoring dependency for device, assuming no driver
[    3.763051] imx6q-pcie 5f010000.pcie: No cache used with register defaults set!
[    3.783605] imx6q-pcie 5f010000.pcie: PCIe PLL locked after 0 us.
[    3.785041] rtc-ds1307 4-0068: hctosys: unable to read the hardware clock
[    3.803672] ALSA device list:
[    3.806644]   #0: imx-spdif
[    3.809680]   #1: apalis-imx8qm-sgtl5000
^C^C^C^C^C^C^C[    4.003616] imx6q-pcie 5f010000.pcie: host bridge /bus@5f000000/pcie@0x5f010000 ranges:
^C[    4.011723] imx6q-pcie 5f010000.pcie:    IO 0x7ff80000..0x7ff8ffff -> 0x00000000
[    4.019329] usb 3-1: new high-speed USB device number 2 using ci_hdrc
[    4.025896] imx6q-pcie 5f010000.pcie:   MEM 0x70000000..0x7fefffff -> 0x70000000
^C^C^C^C[    4.133494] imx6q-pcie 5f010000.pcie: Link up
[    4.137881] imx6q-pcie 5f010000.pcie: Link: Gen2 disabled
[    4.143345] imx6q-pcie 5f010000.pcie: Link up, Gen1
[    4.148577] imx6q-pcie 5f010000.pcie: PCI host bridge to bus 0000:00
[    4.154961] pci_bus 0000:00: root bus resource [bus 00-ff]
^C[    4.160680] pci_bus 0000:00: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    4.169668] pci_bus 0000:00: root bus resource [mem 0x70000000-0x7fefffff]
[    4.176578] pci 0000:00:00.0: [1957:0000] type 01 class 0x060400
[    4.180797] hub 3-1:1.0: USB hub found
[    4.182606] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x00ffffff]
[    4.186487] hub 3-1:1.0: 3 ports detected
[    4.192641] pci 0000:00:00.0: reg 0x38: [mem 0x00000000-0x00ffffff pref]
[    4.192680] pci 0000:00:00.0: supports D1 D2
[    4.207658] pci 0000:00:00.0: PME# supported from D0 D1 D2 D3hot
^C[    4.217220] pci 0000:01:00.0: [1b4b:2b42] type 00 class 0x020000
^C[    4.223319] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit pref]
[    4.230693] pci 0000:01:00.0: reg 0x18: [mem 0x00000000-0x000fffff 64bit pref]
[    4.238183] pci 0000:01:00.0: supports D1 D2
[    4.242464] pci 0000:01:00.0: PME# supported from D0 D1 D3hot D3cold
[    4.248949] pci 0000:01:00.0: 2.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s x1 link at 0000:00:00.0 (capable of 4.000 Gb/s with 5 GT/s x1 link)
^C[    4.276497] pci 0000:00:00.0: BAR 0: assigned [mem 0x70000000-0x70ffffff]
^C[    4.283336] pci 0000:00:00.0: BAR 6: assigned [mem 0x71000000-0x71ffffff pref]
[    4.290982] pci 0000:00:00.0: BAR 15: assigned [mem 0x72000000-0x721fffff 64bit pref]
[    4.298838] pci 0000:01:00.0: BAR 0: assigned [mem 0x72000000-0x720fffff 64bit pref]
[    4.306617] pci 0000:01:00.0: BAR 2: assigned [mem 0x72100000-0x721fffff 64bit pref]
^C[    4.314408] pci 0000:00:00.0: PCI bridge to [bus 01-ff]
[    4.319812] pci 0000:00:00.0:   bridge window [mem 0x72000000-0x721fffff 64bit pref]
[    4.327878] pcieport 0000:00:00.0: PME: Signaling with IRQ 568
^C^C^C^C^C[    4.483510] usb 3-1.3: new low-speed USB device number 3 using ci_hdrc
[    4.491075] imx6q-pcie 5f000000.pcie: Phy link never came up
^C[    4.497083] imx6q-pcie 5f000000.pcie: failed to initialize host
[    4.503020] imx6q-pcie 5f000000.pcie: unable to add pcie port.
^C^C^C[    4.603077] input: PixArt USB Optical Mouse as /devices/platform/bus@5b000000/5b0e0000.usb/ci_hdrc.1/usb3/3-1/3-1.3/3-1.3:1.0/0003:093A:2510.0001/input/input1
^C[    4.617634] hid-generic 0003:093A:2510.0001: input,hidraw0: USB HID v1.11 Mouse [PixArt USB Optical Mouse] on usb-ci_hdrc.1-1.3/input0
^C^C^C^C^C^C^C^C^C[    4.897285] scsi 0:0:0:0: Direct-Access     ADATA    USB Flash Drive  1100 PQ: 0 ANSI: 4
[    4.906892] sd 0:0:0:0: [sda] 30310400 512-byte logical blocks: (15.5 GB/14.5 GiB)
[    4.915444] sd 0:0:0:0: [sda] Write Protect is off
^C[    4.921007] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    4.935934]  sda: sda1
[    4.941160] sd 0:0:0:0: [sda] Attached SCSI removable disk
^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C[   35.807527] VDD_EXT_RGMII (LDO1): disabling
[   35.811769] pcie_switch: disabling
[  103.391919] VFS: Unable to mount root fs via NFS, trying floppy.
[  103.398405] VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
[  103.405647] Please append a correct "root=" boot option; here are the available partitions:
[  103.414033] 0100           65536 ram0 
[  103.414034]  (driver?)
[  103.420161] 0101           65536 ram1 
[  103.420163]  (driver?)
[  103.426282] 0102           65536 ram2 
[  103.426283]  (driver?)
[  103.432410] 0103           65536 ram3 
[  103.432411]  (driver?)
[  103.438531] 0104           65536 ram4 
[  103.438532]  (driver?)
[  103.444676] 0105           65536 ram5 
[  103.444678]  (driver?)
[  103.450807] 0106           65536 ram6 
[  103.450808]  (driver?)
[  103.456950] 0107           65536 ram7 
[  103.456951]  (driver?)
[  103.463085] 0108           65536 ram8 
[  103.463086]  (driver?)
[  103.469226] 0109           65536 ram9 
[  103.469227]  (driver?)
[  103.475355] 010a           65536 ram10 
[  103.475357]  (driver?)
[  103.481582] 010b           65536 ram11 
[  103.481584]  (driver?)
[  103.487795] 010c           65536 ram12 
[  103.487796]  (driver?)
[  103.494016] 010d           65536 ram13 
[  103.494017]  (driver?)
[  103.500224] 010e           65536 ram14 
[  103.500225]  (driver?)
[  103.506448] 010f           65536 ram15 
[  103.506449]  (driver?)
[  103.512667] b300        15392768 mmcblk0 
[  103.512670]  driver: mmcblk
[  103.519511]   b301           49152 mmcblk0p1 7abadd56-01
[  103.519513] 
[  103.526325]   b302        15339520 mmcblk0p2 7abadd56-02
[  103.526327] 
[  103.533156] 0800        15155200 sda 
[  103.533158]  driver: sd
[  103.539278]   0801        15154176 sda1 44411698-01
[  103.539279] 
[  103.545672] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
[  103.553949] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.4.193-5.7.0-devel+git.f78299297185 #1
[  103.562483] Hardware name: Toradex Apalis iMX8QM/QP on Apalis Evaluation Board (DT)
[  103.570148] Call trace:
[  103.572606]  dump_backtrace+0x0/0x168
[  103.576277]  show_stack+0x14/0x20
[  103.579598]  dump_stack+0xb4/0x110
[  103.583002]  panic+0x158/0x324
[  103.586063]  mount_block_root+0x1d0/0x284
[  103.590078]  mount_root+0x124/0x158
[  103.593570]  prepare_namespace+0x15c/0x1c0
[  103.597673]  kernel_init_freeable+0x21c/0x248
[  103.602033]  kernel_init+0x10/0x100
[  103.605530]  ret_from_fork+0x10/0x1c
[  103.609112] SMP: stopping secondary CPUs
[  103.613046] Kernel Offset: disabled
[  103.616545] CPU features: 0x10002,2100600c
[  103.620640] Memory Limit: none
[  103.623710] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) ]---


as bellow config…

setenv my_bootcmd_dhcp 'echo Boot NFS static. . .;  
	setenv devtype tftp; 
	printenv devtype;
	echo "000000";
	 if test "${devtype}" = "tftp";
	 	echo "111111";
	 	setenv ipaddr "10.42.0.80";
	 	setenv serverip "10.42.0.1";
	 	echo "222222";
	 	setenv rootpath "srv/fs,v3,tcp";
	 	printenv rootpath;
		setenv fdt_file imx8qm-apalis-ixora-v1.2.dtb
	 	printenv fdt_file;
		source ${scriptaddr};
	  then
	  	 echo "finish . . .***";
	  fi'

Hi

Make sure your NFS root is mountable from another Linux machine. Make sure kernel has NFS enabled. That’s it.

Hi @hhami !

Were you able to solve your issue?

Let us know :slight_smile:

Best regards,