Failed to mount root file directory through NFS based on IMX6ULL

[long_ming]

I can't start the ubuntu root filesystem based on NFS, I can load my zImage imx6ullxx.dtb file via NFS which is reflected in the logs I provided, but for ubuntu root filesystem I can't get in, can you give me an explanation?

Here's what my logs show：

U-Boot 2020.04 (Nov 20 2024 - 18:57:46 +0800)

CPU: i.MX6ULL rev1.1 792 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 47C
Reset cause: POR
Model: i.MX6 ULL 14x14 EVK Board
Board: MX6ULL 14x14 EVK
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
[*]-Video Link 0 (480 x 272)
[0] lcdif@21c8000, video
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc0 is current device
flash target is MMC:0
Net: eth1: ethernet@20b4000 [PRIME]
Fastboot: Normal
Normal Boot
Hit any key to stop autoboot: 0
Using ethernet@20b4000 device
File transfer via NFS from server 10.0.0.102; our IP address is 10.0.0.245
Filename '/home/ming/nfs/zImage'.
Load address: 0x80800000
Loading: #################################################################
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done
Bytes transferred = 8777512 (85ef28 hex)
Using ethernet@20b4000 device
File transfer via NFS from server 10.0.0.102; our IP address is 10.0.0.245
Filename '/home/ming/nfs/imx6ull-test.dtb'.
Load address: 0x83000000
Loading: #######
done
Bytes transferred = 35693 (8b6d hex)
Kernel image @ 0x80800000 [ 0x000000 - 0x85ef28 ]
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 83000000, end 8300bb6c
Modify /soc/aips-bus@2200000/epdc@228c000:status disabled
ft_system_setup for mx6

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.4.3 (ming@ming) (gcc version 10.3.1 20210621 (GNU Toolchain for the A-profile Architecture 10.3-2021.07 (arm-10.29))) #1 SMP PREEMPT Fri Nov 22 17:32:35 CST 2024
[ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: Freescale i.MX6 ULL 14x14 EVK Board
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] Reserved memory: created CMA memory pool at 0x96000000, size 160 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] percpu: Embedded 15 pages/cpu s32076 r8192 d21172 u61440
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 130048
[ 0.000000] Kernel command line: ‘console=ttymxc0,115200 root=/dev/nfs nfsroot=10.0.0.102:/home/ming/nfs/ubuntu_rootfs,v3,tcp rw ip=10.0.0.245:10.0.0.102:10.0.0.1:255.255.255.0::eth1:off’
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 336824K/524288K available (11264K kernel code, 762K rwdata, 4124K rodata, 1024K init, 432K bss, 23624K reserved, 163840K cma-reserved, 0K highmem)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
[ 0.000000] Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] random: get_random_bytes called from start_kernel+0x2c8/0x46c with crng_init=0
[ 0.000000] Switching to timer-based delay loop, resolution 41ns
[ 0.000018] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000058] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.002917] Console: colour dummy device 80x30
[ 0.003943] printk: console [tty0] enabled
[ 0.004021] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[ 0.004103] pid_max: default: 32768 minimum: 301
[ 0.004402] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.004480] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.005999] CPU: Testing write buffer coherency: ok
[ 0.006701] CPU0: update cpu_capacity 1024
[ 0.006769] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.060556] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.080543] rcu: Hierarchical SRCU implementation.
[ 0.120706] smp: Bringing up secondary CPUs ...
[ 0.120778] smp: Brought up 1 node, 1 CPU
[ 0.120826] SMP: Total of 1 processors activated (48.00 BogoMIPS).
[ 0.120869] CPU: All CPU(s) started in SVC mode.
[ 0.121734] devtmpfs: initialized
[ 0.136203] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[ 0.137199] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.137314] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[ 0.149204] pinctrl core: initialized pinctrl subsystem
[ 0.151599] NET: Registered protocol family 16
[ 0.176654] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.179242] cpuidle: using governor menu
[ 0.195609] vdd3p0: supplied by regulator-dummy
[ 0.196949] cpu: supplied by regulator-dummy
[ 0.198260] vddsoc: supplied by regulator-dummy
[ 0.221202] No ATAGs?
[ 0.221337] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.221539] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.225699] imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
[ 0.226432] imx6ul-pinctrl 2290000.iomuxc-snvs: no groups defined in /soc/aips-bus@2200000/iomuxc-snvs@2290000
[ 0.226525] imx6ul-pinctrl 2290000.iomuxc-snvs: initialized IMX pinctrl driver
[ 0.229171] imx mu driver is registered.
[ 0.230255] imx rpmsg driver is registered.
[ 0.336849] vgaarb: loaded
[ 0.338710] SCSI subsystem initialized
[ 0.343215] usbcore: registered new interface driver usbfs
[ 0.343393] usbcore: registered new interface driver hub
[ 0.343644] usbcore: registered new device driver usb
[ 0.346866] i2c i2c-0: IMX I2C adapter registered
[ 0.348888] i2c i2c-1: IMX I2C adapter registered
[ 0.349833] mc: Linux media interface: v0.10
[ 0.349981] videodev: Linux video capture interface: v2.00
[ 0.350148] pps_core: LinuxPPS API ver. 1 registered
[ 0.350199] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.350301] PTP clock support registered
[ 0.353367] MIPI CSI2 driver module loaded
[ 0.353543] Advanced Linux Sound Architecture Driver Initialized.
[ 0.355343] Bluetooth: Core ver 2.22
[ 0.355511] NET: Registered protocol family 31
[ 0.355561] Bluetooth: HCI device and connection manager initialized
[ 0.355629] Bluetooth: HCI socket layer initialized
[ 0.355678] Bluetooth: L2CAP socket layer initialized
[ 0.355763] Bluetooth: SCO socket layer initialized
[ 0.356819] clocksource: Switched to clocksource mxc_timer1
[ 0.357170] VFS: Disk quotas dquot_6.6.0
[ 0.357352] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.379342] thermal_sys: Registered thermal governor 'step_wise'
[ 0.379955] NET: Registered protocol family 2
[ 0.381266] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 0.381397] TCP established hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 0.381548] TCP bind hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.381740] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.381967] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.382069] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.382469] NET: Registered protocol family 1
[ 0.414006] RPC: Registered named UNIX socket transport module.
[ 0.414079] RPC: Registered udp transport module.
[ 0.414121] RPC: Registered tcp transport module.
[ 0.414161] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.425543] PCI: CLS 0 bytes, default 64
[ 0.427039] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available
[ 0.430502] Bus freq driver module loaded
[ 0.433175] Initialise system trusted keyrings
[ 0.433763] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[ 0.458111] NFS: Registering the id_resolver key type
[ 0.458224] Key type id_resolver registered
[ 0.458268] Key type id_legacy registered
[ 0.458397] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.459539] fuse: init (API version 7.31)
[ 0.546567] Key type asymmetric registered
[ 0.546635] Asymmetric key parser 'x509' registered
[ 0.546731] io scheduler mq-deadline registered
[ 0.546905] io scheduler kyber registered
[ 0.555141] pwm-backlight backlight-display: backlight-display supply power not found, using dummy regulator
[ 0.563277] mxsfb 21c8000.lcdif: 21c8000.lcdif supply lcd not found, using dummy regulator
[ 0.673245] sii902x bound to mxs-lcdif from 21c8000.lcdif
[ 0.677402] Console: switching to colour frame buffer device 60x34
[ 0.774295] mxsfb 21c8000.lcdif: initialized
[ 0.783966] imx-sdma 20ec000.sdma: Direct firmware load for imx/sdma/sdma-imx6q.bin failed with error -2
[ 0.785804] imx-sdma 20ec000.sdma: Falling back to sysfs fallback for: imx/sdma/sdma-imx6q.bin
[ 0.793256] mxs-dma 1804000.dma-apbh: initialized
[ 0.802877] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 21, base_baud = 5000000) is a IMX
[ 0.806348] imx-uart 2020000.serial: Console IMX rounded baud rate from 114943 to 114900
[ 1.890159] printk: console [ttymxc0] enabled
[ 1.898691] 21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 67, base_baud = 5000000) is a IMX
[ 1.946366] imx_rngc 2284000.rng: Freescale RNGC registered.
[ 1.956436] imx sema4 driver is registered.
[ 1.998162] brd: module loaded
[ 2.022628] loop: module loaded
[ 2.030392] imx ahci driver is registered.
[ 2.044208] spi-nor spi4.0: unrecognized JEDEC id bytes: ff ff ff ff ff ff
[ 2.060623] libphy: Fixed MDIO Bus: probed
[ 2.067988] CAN device driver interface
[ 2.298044] pps pps0: new PPS source ptp0
[ 2.306481] libphy: fec_enet_mii_bus: probed
[ 2.314137] mdio_bus 20b4000.ethernet-1: MDIO device at address 1 is missing.
[ 2.326271] fec 20b4000.ethernet eth0: registered PHC device 0
[ 2.558049] pps pps1: new PPS source ptp1
[ 2.565851] fec 2188000.ethernet: Invalid MAC address: 00:00:00:00:00:00
[ 2.576084] fec 2188000.ethernet: Using random MAC address: 16:3f:c1:2c:97:67
[ 2.588579] fec 2188000.ethernet eth1: registered PHC device 1
[ 2.598684] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 2.608008] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 2.618679] usbcore: registered new interface driver r8152
[ 2.628048] usbcore: registered new interface driver lan78xx
[ 2.637572] usbcore: registered new interface driver asix
[ 2.644987] usbcore: registered new interface driver ax88179_178a
[ 2.654898] usbcore: registered new interface driver cdc_ether
[ 2.664673] usbcore: registered new interface driver smsc95xx
[ 2.674337] usbcore: registered new interface driver net1080
[ 2.683956] usbcore: registered new interface driver cdc_subset
[ 2.693872] usbcore: registered new interface driver zaurus
[ 2.703432] usbcore: registered new interface driver MOSCHIP usb-ethernet driver
[ 2.714879] usbcore: registered new interface driver cdc_ncm
[ 2.724534] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.734950] ehci-pci: EHCI PCI platform driver
[ 2.741505] ehci-mxc: Freescale On-Chip EHCI Host driver
[ 2.749714] usbcore: registered new interface driver usb-storage
[ 2.763777] imx_usb 2184000.usb: No over current polarity defined
[ 2.774107] imx_usb 2184000.usb: 2184000.usb supply vbus not found, using dummy regulator
[ 2.814831] imx_usb 2184200.usb: 2184200.usb supply vbus not found, using dummy regulator
[ 2.831715] ci_hdrc ci_hdrc.1: EHCI Host Controller
[ 2.838780] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
[ 2.876854] random: fast init done
[ 2.882303] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[ 2.890143] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 2.902202] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.913149] usb usb1: Product: EHCI Host Controller
[ 2.919942] usb usb1: Manufacturer: Linux 5.4.3 ehci_hcd
[ 2.927148] usb usb1: SerialNumber: ci_hdrc.1
[ 2.934773] hub 1-0:1.0: USB hub found
[ 2.940631] hub 1-0:1.0: 1 port detected
[ 2.962396] input: 20cc000.snvs:snvs-powerkey as /devices/soc0/soc/2000000.aips-bus/20cc000.snvs/20cc000.snvs:snvs-powerkey/input/input0
[ 2.983721] input: iMX6UL Touchscreen Controller as /devices/soc0/soc/2000000.aips-bus/2040000.tsc/input/input1
[ 3.000799] read sensor who am i (0x0)error !
[ 3.007183] fxls8471: probe of 0-001e failed with error -22
[ 3.021080] snvs_rtc 20cc000.snvs:snvs-rtc-lp: registered as rtc0
[ 3.031084] i2c /dev entries driver
[ 3.040133] pxp-v4l2 pxp_v4l2: initialized
[ 3.049063] mag3110 0-000e: 0-000e supply vdd not found, using dummy regulator
[ 3.060326] mag3110 0-000e: 0-000e supply vddio not found, using dummy regulator
[ 3.071429] mag3110 0-000e: check mag3110 chip ID
[ 3.078396] mag3110 0-000e: read chip ID 0xfffffffa is not equal to 0xc4!
[ 3.088921] mag3110: probe of 0-000e failed with error -22
[ 3.101075] imx2-wdt 20bc000.wdog: timeout 60 sec (nowayout=0)
[ 3.112379] Bluetooth: HCI UART driver ver 2.3
[ 3.118984] Bluetooth: HCI UART protocol H4 registered
[ 3.125983] Bluetooth: HCI UART protocol BCSP registered
[ 3.133341] Bluetooth: HCI UART protocol LL registered
[ 3.140382] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 3.150043] Bluetooth: HCI UART protocol Marvell registered
[ 3.159105] usbcore: registered new interface driver btusb
[ 3.170142] sdhci: Secure Digital Host Controller Interface driver
[ 3.179867] sdhci: Copyright(c) Pierre Ossman
[ 3.185989] sdhci-pltfm: SDHCI platform and OF driver helper
[ 3.198517] sdhci-esdhc-imx 2190000.usdhc: Got CD GPIO
[ 3.260291] mmc0: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA
[ 3.316894] usb 1-1: new high-speed USB device number 2 using ci_hdrc
[ 3.327066] mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
[ 3.342596] caam-snvs 20cc000.caam-snvs: can't get snvs clock
[ 3.352212] mmc0: host does not support reading read-only switch, assuming write-enable
[ 3.364313] caam-snvs 20cc000.caam-snvs: violation handlers armed - init state
[ 3.384960] usbcore: registered new interface driver usbhid
[ 3.394820] usbhid: USB HID core driver
[ 3.418053] wm8960 1-001a: Failed to issue reset
[ 3.432146] fsl-sai 202c000.sai: failed to get mclk0 clock: -2
[ 3.452213] imx-wm8960 sound-wm8960: failed to find codec platform device
[ 3.466376] NET: Registered protocol family 26
[ 3.474425] NET: Registered protocol family 10
[ 3.494037] Segment Routing with IPv6
[ 3.500437] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 3.517321] NET: Registered protocol family 17
[ 3.523937] can: controller area network core (rev 20170425 abi 9)
[ 3.538122] usb 1-1: New USB device found, idVendor=1a40, idProduct=0101, bcdDevice= 1.00
[ 3.550479] NET: Registered protocol family 29
[ 3.560353] can: raw protocol (rev 20170425)
[ 3.567588] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 3.579368] can: broadcast manager protocol (rev 20170425 t)
[ 3.589623] usb 1-1: Product: USB2.0 HUB
[ 3.598596] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
[ 3.608939] can: netlink gateway (rev 20190810) max_hops=1
[ 3.619536] hub 1-1:1.0: USB hub found
[ 3.626303] Bluetooth: RFCOMM TTY layer initialized
[ 3.634346] mmcblk0: mmc0:aaaa SD128 119 GiB
[ 3.641253] Bluetooth: RFCOMM socket layer initialized
[ 3.648510] hub 1-1:1.0: 4 ports detected
[ 3.658637] Bluetooth: RFCOMM ver 1.11
[ 3.664789] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.673396] Bluetooth: BNEP filters: protocol multicast
[ 3.681002] mmcblk0: p1 p2
[ 3.685807] Bluetooth: BNEP socket layer initialized
[ 3.695479] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 3.705192] Bluetooth: HIDP socket layer initialized
[ 3.712369] lib80211: common routines for IEEE802.11 drivers
[ 3.722005] Key type dns_resolver registered
[ 3.760115] Registering SWP/SWPB emulation handler
[ 3.768398] Loading compiled-in X.509 certificates
[ 3.803361] regulator-can-3v3 GPIO handle specifies active low - ignored
[ 3.818216] imx_thermal tempmon: Industrial CPU temperature grade - max:105C critical:100C passive:95C
[ 3.830938] imx-wm8960 sound-wm8960: failed to find codec platform device
[ 3.840745] imx-wm8960 sound-wm8960: failed to find codec platform device
[ 3.850381] snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to 1970-01-01T01:03:00 UTC (3780)
[ 3.865763] imx-wm8960 sound-wm8960: failed to find codec platform device
[ 3.874740] Generic PHY 20b4000.ethernet-1:02: attached PHY driver [Generic PHY] (mii_bus:phy_addr=20b4000.ethernet-1:02, irq=POLL)
[ 23.906951] Waiting up to 100 more seconds for network.
[ 43.916946] Waiting up to 80 more seconds for network.
[ 63.926942] Waiting up to 60 more seconds for network.
[ 64.487754] imx-sdma 20ec000.sdma: Direct firmware load for imx/sdma/sdma-imx6q.bin failed with error -2
[ 64.504929] imx-sdma 20ec000.sdma: Falling back to sysfs fallback for: imx/sdma/sdma-imx6q.bin
[ 83.936948] Waiting up to 40 more seconds for network.
[ 103.946952] Waiting up to 20 more seconds for network.
[ 123.926954] IP-Config: Complete:
[ 123.933863] device=eth1, hwaddr=16:3f:c1:2c:97:67, ipaddr=10.0.0.245, mask=255.255.255.0, gw=10.0.0.1
[ 123.951373] host=10.0.0.245, domain=, nis-domain=(none)
[ 123.971474] bootserver=10.0.0.102, rootserver=10.0.0.102, rootpath=
[ 123.983345] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 123.997110] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 124.005647] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 124.016268] platform regulatory.0: Falling back to sysfs fallback for: regulatory.db
[ 124.026233] ALSA device list:
[ 124.030240] No soundcards found.
[ 125.927448] imx-sdma 20ec000.sdma: external firmware not found, using ROM firmware
[ 154.087024] can-3v3: disabling
[ 187.367408] cfg80211: failed to load regulatory.db
[ 208.787073] random: crng init done
[ 239.128127] VFS: Unable to mount root fs via NFS, trying floppy.
[ 239.143436] VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
[ 239.155011] Please append a correct "root=" boot option; here are the available partitions:
[ 239.171085] 0100 65536 ram0
[ 239.171097] (driver?)
[ 239.182799] 0101 65536 ram1
[ 239.182805] (driver?)
[ 239.190761] 0102 65536 ram2
[ 239.190766] (driver?)
[ 239.198551] 0103 65536 ram3
[ 239.198556] (driver?)
[ 239.206173] 0104 65536 ram4
[ 239.206178] (driver?)
[ 239.213814] 0105 65536 ram5
[ 239.213819] (driver?)
[ 239.221354] 0106 65536 ram6
[ 239.221358] (driver?)
[ 239.228818] 0107 65536 ram7
[ 239.228822] (driver?)
[ 239.236213] 0108 65536 ram8
[ 239.236216] (driver?)
[ 239.243634] 0109 65536 ram9
[ 239.243638] (driver?)
[ 239.250914] 010a 65536 ram10
[ 239.250918] (driver?)
[ 239.258191] 010b 65536 ram11
[ 239.258195] (driver?)
[ 239.265368] 010c 65536 ram12
[ 239.265371] (driver?)
[ 239.272603] 010d 65536 ram13
[ 239.272607] (driver?)
[ 239.279811] 010e 65536 ram14
[ 239.279817] (driver?)
[ 239.287007] 010f 65536 ram15
[ 239.287010] (driver?)
[ 239.294184] b300 124868608 mmcblk0
[ 239.294188] driver: mmcblk
[ 239.302054] b301 62915584 mmcblk0p1 00202270-01
[ 239.302059]
[ 239.309931] b302 61952000 mmcblk0p2 00202270-02
[ 239.309935]
[ 239.317834] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
[ 239.327255] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) ]---

[long_ming]

Can anyone explain this?

[Bio_TICFSL]

Hello,

Looks like you have trouble with your DDR, Try to run the DDR stress and burn again.

regards

[long_ming]

Can someone fix this?

[long_ming]

After DDR3 calibration, I recompile and get the following error: rootfs still cannot be mounted via NFS, and the following is the latest log


U-Boot 2020.04 (Nov 26 2024 - 22:13:08 +0800)

CPU: i.MX6ULL rev1.1 792 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 48C
Reset cause: POR
Model: i.MX6 ULL 14x14 EVK Board
Board: MX6ULL 14x14 EVK
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
[*]-Video Link 0 (480 x 272)
[0] lcdif@21c8000, video
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc0 is current device
flash target is MMC:0
Net: Could not get PHY for FEC1: addr 1
Could not get PHY for FEC1: addr 1
No ethernet found.

Fastboot: Normal
Normal Boot
Hit any key to stop autoboot: 0

Warning: ethernet@20b4000 (eth1) using random MAC address - 62:7b:33:21:6a:e5
ethernet@20b4000 Waiting for PHY auto negotiation to complete..... done
Using ethernet@20b4000 device
File transfer via NFS from server 10.0.0.102; our IP address is 10.0.0.135
Filename '/home/ming/nfs/zImage'.
Load address: 0x80800000
Loading: #################################################################
#################################################################
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#################################################################
#################################################################
#################################################################
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#########################
done
Bytes transferred = 8777512 (85ef28 hex)
Using ethernet@20b4000 device
File transfer via NFS from server 10.0.0.102; our IP address is 10.0.0.135
Filename '/home/ming/nfs/imx6ull-test.dtb'.
Load address: 0x83000000
Loading: #######
done
Bytes transferred = 35693 (8b6d hex)
Kernel image @ 0x80800000 [ 0x000000 - 0x85ef28 ]
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 83000000, end 8300bb6c
Modify /soc/aips-bus@2200000/epdc@228c000:status disabled
ft_system_setup for mx6

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.4.3 (ming@ming) (gcc version 10.3.1 20210621 (GNU Toolchain for the A-profile Architecture 10.3-2021.07 (arm-10.29))) #1 SMP PREEMPT Fri Nov 22 17:32:35 CST 2024
[ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: Freescale i.MX6 ULL 14x14 EVK Board
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] Reserved memory: created CMA memory pool at 0x96000000, size 160 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] percpu: Embedded 15 pages/cpu s32076 r8192 d21172 u61440
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 130048
[ 0.000000] Kernel command line: ‘console=ttymxc0,115200 root=/dev/nfs nfsroot=10.0.0.102:/home/ming/nfs/rootfs,proto=tcp rw ip=10.0.0.135:10.0.0.102:10.0.0.1:255.255.255.0::eth1:off’
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 336824K/524288K available (11264K kernel code, 762K rwdata, 4124K rodata, 1024K init, 432K bss, 23624K reserved, 163840K cma-reserved, 0K highmem)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
[ 0.000000] Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] random: get_random_bytes called from start_kernel+0x2c8/0x46c with crng_init=0
[ 0.000000] Switching to timer-based delay loop, resolution 41ns
[ 0.000018] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000057] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.002915] Console: colour dummy device 80x30
[ 0.003945] printk: console [tty0] enabled
[ 0.004025] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[ 0.004110] pid_max: default: 32768 minimum: 301
[ 0.004410] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.004486] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.006009] CPU: Testing write buffer coherency: ok
[ 0.006713] CPU0: update cpu_capacity 1024
[ 0.006779] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.060558] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.080533] rcu: Hierarchical SRCU implementation.
[ 0.120700] smp: Bringing up secondary CPUs ...
[ 0.120770] smp: Brought up 1 node, 1 CPU
[ 0.120817] SMP: Total of 1 processors activated (48.00 BogoMIPS).
[ 0.120860] CPU: All CPU(s) started in SVC mode.
[ 0.121715] devtmpfs: initialized
[ 0.136226] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[ 0.137196] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.137310] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[ 0.149146] pinctrl core: initialized pinctrl subsystem
[ 0.151550] NET: Registered protocol family 16
[ 0.177264] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.179859] cpuidle: using governor menu
[ 0.196282] vdd3p0: supplied by regulator-dummy
[ 0.197614] cpu: supplied by regulator-dummy
[ 0.198933] vddsoc: supplied by regulator-dummy
[ 0.222050] No ATAGs?
[ 0.222174] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.222282] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.226413] imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
[ 0.227157] imx6ul-pinctrl 2290000.iomuxc-snvs: no groups defined in /soc/aips-bus@2200000/iomuxc-snvs@2290000
[ 0.227251] imx6ul-pinctrl 2290000.iomuxc-snvs: initialized IMX pinctrl driver
[ 0.229905] imx mu driver is registered.
[ 0.230993] imx rpmsg driver is registered.
[ 0.336758] vgaarb: loaded
[ 0.338616] SCSI subsystem initialized
[ 0.343336] usbcore: registered new interface driver usbfs
[ 0.343520] usbcore: registered new interface driver hub
[ 0.343771] usbcore: registered new device driver usb
[ 0.346974] i2c i2c-0: IMX I2C adapter registered
[ 0.348990] i2c i2c-1: IMX I2C adapter registered
[ 0.349928] mc: Linux media interface: v0.10
[ 0.350079] videodev: Linux video capture interface: v2.00
[ 0.350246] pps_core: LinuxPPS API ver. 1 registered
[ 0.350294] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.350391] PTP clock support registered
[ 0.353464] MIPI CSI2 driver module loaded
[ 0.353636] Advanced Linux Sound Architecture Driver Initialized.
[ 0.355427] Bluetooth: Core ver 2.22
[ 0.355595] NET: Registered protocol family 31
[ 0.355646] Bluetooth: HCI device and connection manager initialized
[ 0.355713] Bluetooth: HCI socket layer initialized
[ 0.355764] Bluetooth: L2CAP socket layer initialized
[ 0.355847] Bluetooth: SCO socket layer initialized
[ 0.356905] clocksource: Switched to clocksource mxc_timer1
[ 0.357251] VFS: Disk quotas dquot_6.6.0
[ 0.357431] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.379423] thermal_sys: Registered thermal governor 'step_wise'
[ 0.380026] NET: Registered protocol family 2
[ 0.381342] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 0.381473] TCP established hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 0.381628] TCP bind hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.381820] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.382058] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.382156] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.382549] NET: Registered protocol family 1
[ 0.414065] RPC: Registered named UNIX socket transport module.
[ 0.414140] RPC: Registered udp transport module.
[ 0.414184] RPC: Registered tcp transport module.
[ 0.414224] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.425622] PCI: CLS 0 bytes, default 64
[ 0.427101] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available
[ 0.430586] Bus freq driver module loaded
[ 0.433246] Initialise system trusted keyrings
[ 0.433834] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[ 0.458180] NFS: Registering the id_resolver key type
[ 0.458291] Key type id_resolver registered
[ 0.458337] Key type id_legacy registered
[ 0.458463] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.459610] fuse: init (API version 7.31)
[ 0.547333] Key type asymmetric registered
[ 0.547401] Asymmetric key parser 'x509' registered
[ 0.547496] io scheduler mq-deadline registered
[ 0.547540] io scheduler kyber registered
[ 0.555750] pwm-backlight backlight-display: backlight-display supply power not found, using dummy regulator
[ 0.563378] mxsfb 21c8000.lcdif: 21c8000.lcdif supply lcd not found, using dummy regulator
[ 0.673429] sii902x bound to mxs-lcdif from 21c8000.lcdif
[ 0.677558] Console: switching to colour frame buffer device 60x34
[ 0.774358] mxsfb 21c8000.lcdif: initialized
[ 0.784046] imx-sdma 20ec000.sdma: Direct firmware load for imx/sdma/sdma-imx6q.bin failed with error -2
[ 0.785884] imx-sdma 20ec000.sdma: Falling back to sysfs fallback for: imx/sdma/sdma-imx6q.bin
[ 0.793369] mxs-dma 1804000.dma-apbh: initialized
[ 0.802938] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 21, base_baud = 5000000) is a IMX
[ 0.806404] imx-uart 2020000.serial: Console IMX rounded baud rate from 114943 to 114900
[ 1.889418] printk: console [ttymxc0] enabled
[ 1.897957] 21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 67, base_baud = 5000000) is a IMX
[ 1.945598] imx_rngc 2284000.rng: Freescale RNGC registered.
[ 1.955675] imx sema4 driver is registered.
[ 1.997501] brd: module loaded
[ 2.022051] loop: module loaded
[ 2.029793] imx ahci driver is registered.
[ 2.043618] spi-nor spi4.0: unrecognized JEDEC id bytes: ff ff ff ff ff ff
[ 2.059993] libphy: Fixed MDIO Bus: probed
[ 2.067381] CAN device driver interface
[ 2.298111] pps pps0: new PPS source ptp0
[ 2.306589] libphy: fec_enet_mii_bus: probed
[ 2.314241] mdio_bus 20b4000.ethernet-1: MDIO device at address 1 is missing.
[ 2.326390] fec 20b4000.ethernet eth0: registered PHC device 0
[ 2.558122] pps pps1: new PPS source ptp1
[ 2.565912] fec 2188000.ethernet: Invalid MAC address: 00:00:00:00:00:00
[ 2.576140] fec 2188000.ethernet: Using random MAC address: 9e:d5:82:07:7e:e1
[ 2.588628] fec 2188000.ethernet eth1: registered PHC device 1
[ 2.598719] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 2.608038] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 2.618695] usbcore: registered new interface driver r8152
[ 2.628075] usbcore: registered new interface driver lan78xx
[ 2.637604] usbcore: registered new interface driver asix
[ 2.645023] usbcore: registered new interface driver ax88179_178a
[ 2.654942] usbcore: registered new interface driver cdc_ether
[ 2.664720] usbcore: registered new interface driver smsc95xx
[ 2.674394] usbcore: registered new interface driver net1080
[ 2.684016] usbcore: registered new interface driver cdc_subset
[ 2.693935] usbcore: registered new interface driver zaurus
[ 2.703500] usbcore: registered new interface driver MOSCHIP usb-ethernet driver
[ 2.714944] usbcore: registered new interface driver cdc_ncm
[ 2.724608] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.735026] ehci-pci: EHCI PCI platform driver
[ 2.741575] ehci-mxc: Freescale On-Chip EHCI Host driver
[ 2.749782] usbcore: registered new interface driver usb-storage
[ 2.763865] imx_usb 2184000.usb: No over current polarity defined
[ 2.774184] imx_usb 2184000.usb: 2184000.usb supply vbus not found, using dummy regulator
[ 2.814896] imx_usb 2184200.usb: 2184200.usb supply vbus not found, using dummy regulator
[ 2.831749] ci_hdrc ci_hdrc.1: EHCI Host Controller
[ 2.838832] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
[ 2.849725] random: fast init done
[ 2.887013] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[ 2.894850] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 2.906941] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.917899] usb usb1: Product: EHCI Host Controller
[ 2.924657] usb usb1: Manufacturer: Linux 5.4.3 ehci_hcd
[ 2.931861] usb usb1: SerialNumber: ci_hdrc.1
[ 2.939518] hub 1-0:1.0: USB hub found
[ 2.945207] hub 1-0:1.0: 1 port detected
[ 2.967160] input: 20cc000.snvs:snvs-powerkey as /devices/soc0/soc/2000000.aips-bus/20cc000.snvs/20cc000.snvs:snvs-powerkey/input/input0
[ 2.988623] input: iMX6UL Touchscreen Controller as /devices/soc0/soc/2000000.aips-bus/2040000.tsc/input/input1
[ 3.005681] read sensor who am i (0x0)error !
[ 3.012058] fxls8471: probe of 0-001e failed with error -22
[ 3.025733] snvs_rtc 20cc000.snvs:snvs-rtc-lp: registered as rtc0
[ 3.035755] i2c /dev entries driver
[ 3.044791] pxp-v4l2 pxp_v4l2: initialized
[ 3.053685] mag3110 0-000e: 0-000e supply vdd not found, using dummy regulator
[ 3.064956] mag3110 0-000e: 0-000e supply vddio not found, using dummy regulator
[ 3.076069] mag3110 0-000e: check mag3110 chip ID
[ 3.083045] mag3110 0-000e: read chip ID 0xfffffffa is not equal to 0xc4!
[ 3.093590] mag3110: probe of 0-000e failed with error -22
[ 3.105739] imx2-wdt 20bc000.wdog: timeout 60 sec (nowayout=0)
[ 3.117218] Bluetooth: HCI UART driver ver 2.3
[ 3.123595] Bluetooth: HCI UART protocol H4 registered
[ 3.130762] Bluetooth: HCI UART protocol BCSP registered
[ 3.138041] Bluetooth: HCI UART protocol LL registered
[ 3.144997] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 3.154672] Bluetooth: HCI UART protocol Marvell registered
[ 3.163745] usbcore: registered new interface driver btusb
[ 3.174793] sdhci: Secure Digital Host Controller Interface driver
[ 3.184529] sdhci: Copyright(c) Pierre Ossman
[ 3.190998] sdhci-pltfm: SDHCI platform and OF driver helper
[ 3.203286] sdhci-esdhc-imx 2190000.usdhc: Got CD GPIO
[ 3.254768] mmc0: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA
[ 3.316985] usb 1-1: new high-speed USB device number 2 using ci_hdrc
[ 3.327131] mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
[ 3.337914] mmc0: host does not support reading read-only switch, assuming write-enable
[ 3.352747] caam-snvs 20cc000.caam-snvs: can't get snvs clock
[ 3.363725] caam-snvs 20cc000.caam-snvs: violation handlers armed - init state
[ 3.384173] usbcore: registered new interface driver usbhid
[ 3.394006] usbhid: USB HID core driver
[ 3.417596] wm8960 1-001a: Failed to issue reset
[ 3.430405] fsl-sai 202c000.sai: failed to get mclk0 clock: -2
[ 3.452368] imx-wm8960 sound-wm8960: failed to find codec platform device
[ 3.466551] NET: Registered protocol family 26
[ 3.474653] NET: Registered protocol family 10
[ 3.493684] Segment Routing with IPv6
[ 3.500061] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 3.516086] NET: Registered protocol family 17
[ 3.523766] can: controller area network core (rev 20170425 abi 9)
[ 3.537210] NET: Registered protocol family 29
[ 3.548288] usb 1-1: New USB device found, idVendor=1a40, idProduct=0101, bcdDevice= 1.00
[ 3.560230] can: raw protocol (rev 20170425)
[ 3.568543] can: broadcast manager protocol (rev 20170425 t)
[ 3.578800] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 3.592791] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
[ 3.603017] can: netlink gateway (rev 20190810) max_hops=1
[ 3.612147] usb 1-1: Product: USB2.0 HUB
[ 3.619929] Bluetooth: RFCOMM TTY layer initialized
[ 3.629033] hub 1-1:1.0: USB hub found
[ 3.635160] mmcblk0: mmc0:aaaa SD128 119 GiB
[ 3.641679] Bluetooth: RFCOMM socket layer initialized
[ 3.649116] hub 1-1:1.0: 4 ports detected
[ 3.658147] Bluetooth: RFCOMM ver 1.11
[ 3.664092] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.672845] Bluetooth: BNEP filters: protocol multicast
[ 3.680649] mmcblk0: p1 p2
[ 3.689464] Bluetooth: BNEP socket layer initialized
[ 3.696738] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 3.706493] Bluetooth: HIDP socket layer initialized
[ 3.713489] lib80211: common routines for IEEE802.11 drivers
[ 3.722717] Key type dns_resolver registered
[ 3.760104] Registering SWP/SWPB emulation handler
[ 3.768266] Loading compiled-in X.509 certificates
[ 3.803549] regulator-can-3v3 GPIO handle specifies active low - ignored
[ 3.818412] imx_thermal tempmon: Industrial CPU temperature grade - max:105C critical:100C passive:95C
[ 3.831125] imx-wm8960 sound-wm8960: failed to find codec platform device
[ 3.840932] imx-wm8960 sound-wm8960: failed to find codec platform device
[ 3.850573] snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to 2021-07-21T10:37:29 UTC (1626863849)
[ 3.866469] imx-wm8960 sound-wm8960: failed to find codec platform device
[ 3.875442] Generic PHY 20b4000.ethernet-1:02: attached PHY driver [Generic PHY] (mii_bus:phy_addr=20b4000.ethernet-1:02, irq=POLL)
[ 23.907038] Waiting up to 100 more seconds for network.
[ 43.917028] Waiting up to 80 more seconds for network.
[ 63.927044] Waiting up to 60 more seconds for network.
[ 64.487868] imx-sdma 20ec000.sdma: Direct firmware load for imx/sdma/sdma-imx6q.bin failed with error -2
[ 64.505018] imx-sdma 20ec000.sdma: Falling back to sysfs fallback for: imx/sdma/sdma-imx6q.bin
[ 83.937030] Waiting up to 40 more seconds for network.
[ 103.947041] Waiting up to 20 more seconds for network.
[ 123.927037] IP-Config: Complete:
[ 123.933944] device=eth1, hwaddr=9e:d5:82:07:7e:e1, ipaddr=10.0.0.135, mask=255.255.255.0, gw=10.0.0.1
[ 123.951438] host=10.0.0.135, domain=, nis-domain=(none)
[ 123.971506] bootserver=10.0.0.102, rootserver=10.0.0.102, rootpath=
[ 123.983388] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 123.997152] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 124.005693] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 124.016320] platform regulatory.0: Falling back to sysfs fallback for: regulatory.db
[ 124.026289] ALSA device list:
[ 124.030300] No soundcards found.
[ 125.927533] imx-sdma 20ec000.sdma: external firmware not found, using ROM firmware
[ 154.087102] can-3v3: disabling
[ 187.367492] cfg80211: failed to load regulatory.db
[ 208.787158] random: crng init done
[ 239.128193] VFS: Unable to mount root fs via NFS, trying floppy.
[ 239.143539] VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
[ 239.155119] Please append a correct "root=" boot option; here are the available partitions:
[ 239.171179] 0100 65536 ram0
[ 239.171191] (driver?)
[ 239.182885] 0101 65536 ram1
[ 239.182889] (driver?)
[ 239.190840] 0102 65536 ram2
[ 239.190845] (driver?)
[ 239.198626] 0103 65536 ram3
[ 239.198630] (driver?)
[ 239.206249] 0104 65536 ram4
[ 239.206252] (driver?)
[ 239.213897] 0105 65536 ram5
[ 239.213902] (driver?)
[ 239.221439] 0106 65536 ram6
[ 239.221443] (driver?)
[ 239.228908] 0107 65536 ram7
[ 239.228911] (driver?)
[ 239.236308] 0108 65536 ram8
[ 239.236312] (driver?)
[ 239.243736] 0109 65536 ram9
[ 239.243741] (driver?)
[ 239.251027] 010a 65536 ram10
[ 239.251031] (driver?)
[ 239.258304] 010b 65536 ram11
[ 239.258308] (driver?)
[ 239.265486] 010c 65536 ram12
[ 239.265491] (driver?)
[ 239.272734] 010d 65536 ram13
[ 239.272738] (driver?)
[ 239.279952] 010e 65536 ram14
[ 239.279956] (driver?)
[ 239.287155] 010f 65536 ram15
[ 239.287159] (driver?)
[ 239.294345] b300 124868608 mmcblk0
[ 239.294349] driver: mmcblk
[ 239.302223] b301 62915584 mmcblk0p1 00202270-01
[ 239.302228]
[ 239.310112] b302 61952000 mmcblk0p2 00202270-02
[ 239.310116]
[ 239.318014] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
[ 239.327438] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) ]---

[long_ming]

Okay, I'll test it out