Dear expert,
I got an error during booting of Colibri iMX6 and stop running kernel because of “Unable to mount root fs”.
That appening with image built with open embedded and with prebuilt image downloaded from Toradex server.
Do you have any idea about?
Please find here below the boot log:
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.9.67-+g1db9f06709ad (oe-user@oe-host) (gcc version 7.2.0 (GCC) ) #1 SMP Wed Feb 21 07:48:53 CET 2018
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt:Machine model: Toradex Colibri iMX6DL/S on Colibri Evaluation Board V3
[ 0.000000] Reserved memory: created CMA memory pool at 0x1c000000, size 256 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] percpu: Embedded 14 pages/cpu @9fb38000 s25548 r8192 d23604 u57344
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
[ 0.000000] Kernel command line: enable_wait_mode=off galcore.contiguousSize=50331648 ip=off root=/dev/mmcblk0p2 rw,noatime rootfstype=ext3 rootwait fec_mac=00:14:2d:4a:4d:89 consoleblank=0 no_console_suspend=1 console=tty1 console=ttymxc0,115200n8 video=mxcfb0:dev=lcd,640x480M@60,if=RGB666 video=mxcfb1:off fbmem=8M
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 245848K/524288K available (7168K kernel code, 273K rwdata, 1824K rodata, 1024K init, 434K bss, 16296K reserved, 262144K cma-reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xa0800000 - 0xff800000 (1520 MB)
[ 0.000000] lowmem : 0x80000000 - 0xa0000000 ( 512 MB)
[ 0.000000] pkmap : 0x7fe00000 - 0x80000000 ( 2 MB)
[ 0.000000] modules : 0x7f000000 - 0x7fe00000 ( 14 MB)
[ 0.000000] .text : 0x80008000 - 0x80800000 (8160 kB)
[ 0.000000] .init : 0x80a00000 - 0x80b00000 (1024 kB)
[ 0.000000] .data : 0x80b00000 - 0x80b44400 ( 273 kB)
[ 0.000000] .bss : 0x80b44400 - 0x80bb0dcc ( 435 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=2
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C-310 erratum 769419 enabled
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] L2C-310 full line of zeros enabled for Cortex-A9
[ 0.000000] L2C-310 ID prefetch enabled, offset 16 lines
[ 0.000000] L2C-310 dynamic clock gating enabled, standby mode enabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 512 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x76450001
[ 0.000000] Switching to timer-based delay loop, resolution 333ns
[ 0.000007] sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 715827882841ns
[ 0.000023] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 637086815595 ns
[ 0.001471] Console: colour dummy device 80x30
[ 0.002155] console [tty1] enabled
[ 0.002185] Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000)
[ 0.002230] pid_max: default: 32768 minimum: 301
[ 0.002337] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.002365] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.002991] CPU: Testing write buffer coherency: ok
[ 0.003337] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.003422] Setting up static identity map for 0x10100000 - 0x10100058
[ 0.005299] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.005417] Brought up 2 CPUs
[ 0.005472] SMP: Total of 2 processors activated (12.00 BogoMIPS).
[ 0.005496] CPU: All CPU(s) started in SVC mode.
[ 0.006291] devtmpfs: initialized
[ 0.018040] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.018372] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.018423] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 0.031402] pinctrl core: initialized pinctrl subsystem
[ 0.032408] NET: Registered protocol family 16
[ 0.039450] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.069582] cpuidle: using governor menu
[ 0.069882] CPU identified as i.MX6DL, silicon rev 1.2
[ 0.091762] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.091813] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.094319] imx6dl-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
[ 0.095546] imx-gpc 20dc000.gpc: no fsl,ldo-bypass found!
[ 0.095689] imx-gpc 20dc000.gpc: Registered imx-gpc
[ 0.119262] SCSI subsystem initialized
[ 0.119611] usbcore: registered new interface driver usbfs
[ 0.119714] usbcore: registered new interface driver hub
[ 0.119834] usbcore: registered new device driver usb
[ 0.120035] 2000000.aips-bus:usbphy_nop1 supply vcc not found, using dummy regulator
[ 0.120190] 2000000.aips-bus:usbphy_nop2 supply vcc not found, using dummy regulator
[ 0.121077] i2c-gpio i2c@0: using pins 109 (SDA) and 108 (SCL)
[ 0.130247] stmpe-i2c 1-0041: stmpe811 detected, chip id: 0x811
[ 0.220628] i2c i2c-1: IMX I2C adapter registered
[ 0.220669] i2c i2c-1: can't use DMA, using PIO instead.
[ 0.221492] i2c i2c-2: IMX I2C adapter registered
[ 0.221533] i2c i2c-2: can't use DMA, using PIO instead.
[ 0.221713] Linux video capture interface: v2.00
[ 0.221785] pps_core: LinuxPPS API ver. 1 registered
[ 0.221810] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.221860] PTP clock support registered
[ 0.249636] imx-ipuv3 2400000.ipu: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
[ 0.250812] MIPI CSI2 driver module loaded
[ 0.251030] Advanced Linux Sound Architecture Driver Initialized.
[ 0.252947] clocksource: Switched to clocksource mxc_timer1
[ 0.253081] VFS: Disk quotas dquot_6.6.0
[ 0.253166] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.263990] NET: Registered protocol family 2
[ 0.264619] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.264693] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.264780] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.264853] UDP hash table entries: 256 (order: 1, 8192 bytes)
[ 0.264896] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[ 0.265053] NET: Registered protocol family 1
[ 0.265508] RPC: Registered named UNIX socket transport module.
[ 0.265541] RPC: Registered udp transport module.
[ 0.265562] RPC: Registered tcp transport module.
[ 0.265583] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.266350] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 0.267875] Bus freq driver module loaded
[ 0.269555] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[ 0.276259] NFS: Registering the id_resolver key type
[ 0.276317] Key type id_resolver registered
[ 0.276340] Key type id_legacy registered
[ 0.276372] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 0.276944] ntfs: driver 2.1.32 [Flags: R/W].
[ 0.277314] fuse init (API version 7.26)
[ 0.283481] io scheduler noop registered
[ 0.283518] io scheduler deadline registered
[ 0.283718] io scheduler cfq registered (default)
[ 0.285693] imx-weim 21b8000.weim: Driver registered.
[ 0.287814] backlight supply power not found, using dummy regulator
[ 0.289574] 20e0000.hdmi_video supply HDMI not found, using dummy regulator
[ 0.290810] fbcvt: 640x480@60: CVT Name - .307M3
[ 0.290861] mxc_sdc_fb fb@0: registered mxc display driver lcd
[ 0.293666] mxc_sdc_fb fb@0: 640x480 h_sync,r,l: 64,16,80 v_sync,l,u: 4,3,13 pixclock=23750000 Hz
[ 0.357221] mxc_sdc_fb fb@0: 640x480 h_sync,r,l: 64,16,80 v_sync,l,u: 4,3,13 pixclock=23750000 Hz
[ 0.386739] Console: switching to colour frame buffer device 80x30
[ 0.427817] mxc_sdc_fb fb@1: mxcfb1 is turned off!
[ 0.431226] imx-sdma 20ec000.sdma: no iram assigned, using external mem
[ 0.433591] imx-sdma 20ec000.sdma: loaded firmware 3.3
[ 0.440199] pfuze100-regulator 1-0008: Full layer: 1, Metal layer: 1
[ 0.442839] pfuze100-regulator 1-0008: FAB: 0, FIN: 0
[ 0.444728] pfuze100-regulator 1-0008: pfuze100 found.
[ 0.464196] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 26, base_baud = 5000000) is a IMX
[ 1.257962] console [ttymxc0] enabled
[ 1.264609] 21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 72, base_baud = 5000000) is a IMX
[ 1.277751] 21ec000.serial: ttymxc2 at MMIO 0x21ec000 (irq = 73, base_baud = 5000000) is a IMX
[ 1.291349] [drm] Initialized
[ 1.296863] [drm] Initialized vivante 1.0.0 20120216 on minor 0
[ 1.315720] brd: module loaded
[ 1.327323] loop: module loaded
[ 1.334586] spi_imx 2014000.ecspi: probed
[ 1.341313] libphy: Fixed MDIO Bus: probed
[ 1.347828] vcan: Virtual CAN interface driver
[ 1.354226] CAN device driver interface
[ 1.370193] mcp251x spi3.0: Cannot initialize MCP2515. Wrong wiring?
[ 1.378485] mcp251x spi3.0: Probe failed, err=19
[ 1.386306] 2188000.ethernet supply phy not found, using dummy regulator
[ 1.395395] pps pps0: new PPS source ptp0
[ 1.405529] libphy: fec_enet_mii_bus: probed
[ 1.412145] fec 2188000.ethernet eth0: registered PHC device 0
[ 1.420184] usbcore: registered new interface driver asix
[ 1.427463] usbcore: registered new interface driver ax88179_178a
[ 1.435405] usbcore: registered new interface driver cdc_ether
[ 1.443076] usbcore: registered new interface driver net1080
[ 1.450471] usbcore: registered new interface driver cdc_subset
[ 1.458059] usbcore: registered new interface driver zaurus
[ 1.465290] usbcore: registered new interface driver cdc_ncm
[ 1.472452] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.480493] ehci-mxc: Freescale On-Chip EHCI Host driver
[ 1.487449] usbcore: registered new interface driver usb-storage
[ 1.495039] usbcore: registered new interface driver usbserial
[ 1.502328] usbcore: registered new interface driver usbserial_generic
[ 1.510302] usbserial: USB Serial support registered for generic
[ 1.517748] usbcore: registered new interface driver ftdi_sio
[ 1.525006] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 1.535254] usbcore: registered new interface driver pl2303
[ 1.542389] usbserial: USB Serial support registered for pl2303
[ 1.551067] 2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
[ 1.562485] 2184000.usb supply vbus not found, using dummy regulator
[ 1.574174] ci_hdrc ci_hdrc.0: EHCI Host Controller
[ 1.580694] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
[ 1.612975] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
[ 1.620861] hub 1-0:1.0: USB hub found
[ 1.626278] hub 1-0:1.0: 1 port detected
[ 1.632878] mousedev: PS/2 mouse device common for all mice
[ 1.650587] input: stmpe-ts as /devices/soc0/soc/2100000.aips-bus/21a4000.i2c/i2c-1/1-0041/stmpe-ts/input/input0
[ 1.665380] rtc-ds1307: probe of 2-0068 failed with error -5
[ 1.673693] snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered 20cc000.snvs:snvs-r as rtc0
[ 1.686408] i2c /dev entries driver
[ 1.693080] mxc_v4l2_output v4l2_out: V4L2 device registered as video16
[ 1.701873] mxc_v4l2_output v4l2_out: V4L2 device registered as video17
[ 1.711946] imx2-wdt 20bc000.wdog: timeout 60 sec (nowayout=0)
[ 1.720464] sdhci: Secure Digital Host Controller Interface driver
[ 1.728711] sdhci: Copyright(c) Pierre Ossman
[ 1.735095] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.743905] sdhci-esdhc-imx 2190000.usdhc: Got CD GPIO
[ 1.813133] mmc1: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA
[ 1.892989] mmc0: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA
[ 1.913954] mxc_vpu 2040000.vpu_fsl: VPU initialized
[ 1.915043] random: fast init done
[ 1.926844] mxc_vdoa 21e4000.vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
[ 1.939692] caam 2100000.caam: ERA source: CAAMVID.
[ 1.946668] caam 2100000.caam: AXI pipeline throttling enabled.
[ 1.955551] caam 2100000.caam: Entropy delay = 3200
[ 2.007002] mmc0: new DDR MMC card at address 0001
[ 2.014543] mmcblk0: mmc0:0001 004GE0 3.69 GiB
[ 2.021327] mmcblk0boot0: mmc0:0001 004GE0 partition 1 2.00 MiB
[ 2.023262] caam 2100000.caam: Instantiated RNG4 SH0
[ 2.036414] mmcblk0boot1: mmc0:0001 004GE0 partition 2 2.00 MiB
[ 2.045579] mmcblk0: p1 p2
[ 2.062441] mmc1: new high speed SDHC card at address aaaa
[ 2.070390] mmcblk1: mmc1:aaaa SU04G 3.69 GiB
[ 2.084025] caam 2100000.caam: Instantiated RNG4 SH1
[ 2.090938] caam 2100000.caam: device ID = 0x0a16010000000100 (Era 4)
[ 2.095464] mmcblk1: p1
[ 2.103767] caam 2100000.caam: job rings = 2, qi = 0
[ 2.116804] caam algorithms registered in /proc/crypto
[ 2.127788] caam_jr 2101000.jr0: registering rng-caam
[ 2.135661] snvs-secvio 20cc000.caam-snvs: can't get snvs clock
[ 2.143537] snvs-secvio 20cc000.caam-snvs: violation handlers armed - non-secure state
[ 2.155208] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.162565] usbcore: registered new interface driver usbhid
[ 2.169974] usbhid: USB HID core driver
[ 2.181971] stmpe-adc stmpe-adc: Initialized
[ 2.191291] sgtl5000 1-000a: sgtl5000 revision 0x11
[ 2.226911] fsl-ssi-dai 2028000.ssi: No cache defaults, reading back from HW
[ 2.236787] fsl-hdmi-dai soc:hdmi_audio@00120000: failed to probe. Load HDMI-video first.
[ 2.248623] fsl-hdmi-dai: probe of soc:hdmi_audio@00120000 failed with error -12
[ 2.274304] imx-sgtl5000 sound: sgtl5000 <-> 2028000.ssi mapping ok
[ 2.284057] imx-audio-hdmi sound-hdmi: initialize HDMI-audio failed. load HDMI-video first!
[ 2.297197] NET: Registered protocol family 10
[ 2.304682] NET: Registered protocol family 17
[ 2.311075] can: controller area network core (rev 20120528 abi 9)
[ 2.319440] NET: Registered protocol family 29
[ 2.325852] can: raw protocol (rev 20120528)
[ 2.332026] can: broadcast manager protocol (rev 20161123 t)
[ 2.339638] can: netlink gateway (rev 20130117) max_hops=1
[ 2.347406] Key type dns_resolver registered
[ 2.355478] cpu cpu0: Registered imx6q-cpufreq
[ 2.361885] Registering SWP/SWPB emulation handler
[ 2.377051] 2184000.usb supply vbus not found, using dummy regulator
[ 2.388876] ci_hdrc ci_hdrc.1: EHCI Host Controller
[ 2.395343] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2
[ 2.432989] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[ 2.440685] hub 2-0:1.0: USB hub found
[ 2.446031] hub 2-0:1.0: 1 port detected
[ 2.452718] imx_thermal 2000000.aips-bus:tempmon: Commercial CPU temperature grade - max:95C critical:90C passive:85C
[ 2.467392] input: gpio-keys as /devices/soc0/gpio-keys/input/input1
[ 2.475712] snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to 1970-01-01 00:00:00 UTC (0)
[ 2.488282] ALSA device list:
[ 2.492716] #0: imx6-colibri-sgtl5000
[ 2.506758] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 2.517891] List of all partitions:
[ 2.522867] 0100 65536 ram0 [ 2.526538] (driver?)
[ 2.530365] 0101 65536 ram1 [ 2.534011] (driver?)
[ 2.537781] 0102 65536 ram2 [ 2.541409] (driver?)
[ 2.545163] 0103 65536 ram3 [ 2.548793] (driver?)
[ 2.552498] 0104 65536 ram4 [ 2.556156] (driver?)
[ 2.559830] 0105 65536 ram5 [ 2.563485] (driver?)
[ 2.567117] 0106 65536 ram6 [ 2.570746] (driver?)
[ 2.574362] 0107 65536 ram7 [ 2.577992] (driver?)
[ 2.581567] 0108 65536 ram8 [ 2.585217] (driver?)
[ 2.588746] 0109 65536 ram9 [ 2.592374] (driver?)
[ 2.595862] 010a 65536 ram10 [ 2.599580] (driver?)
[ 2.603057] 010b 65536 ram11 [ 2.606777] (driver?)
[ 2.610203] 010c 65536 ram12 [ 2.613940] (driver?)
[ 2.617331] 010d 65536 ram13 [ 2.621045] (driver?)
[ 2.624440] 010e 65536 ram14 [ 2.628158] (driver?)
[ 2.631481] 010f 65536 ram15 [ 2.635222] (driver?)
[ 2.638495] b300 3866624 mmcblk0 [ 2.642387] driver: mmcblk
[ 2.646089] b301 16384 mmcblk0p1 f9a34c87-01[ 2.651302]
[ 2.653665] b302 3543040 mmcblk0p2 f9a34c87-02[ 2.658876]
[ 2.661167] b310 2048 mmcblk0boot1 [ 2.665520] (driver?)
[ 2.668726] b308 2048 mmcblk0boot0 [ 2.673070] (driver?)
[ 2.676254] b320 3872256 mmcblk1 [ 2.680146] driver: mmcblk
[ 2.683760] b321 3870720 mmcblk1p1 cc6fb21a-01[ 2.688971]
[ 2.691229] No filesystem could mount root, tried: [ 2.696023] ext3
[ 2.698744]
[ 2.701024] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2)
[ 2.711281] CPU1: stopping
[ 2.714950] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.67-+g1db9f06709ad #1
[ 2.724248] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[ 2.731943] Backtrace:
[ 2.735590] [<8010ba5c>] (dump_backtrace) from [<8010bd34>] (show_stack+0x18/0x1c)
[ 2.745692] r7:f4a00100 r6:60000193 r5:00000000 r4:80b1a8b0
[ 2.752712] [<8010bd1c>] (show_stack) from [<803f6b24>] (dump_stack+0x90/0xa4)
[ 2.762759] [<803f6a94>] (dump_stack) from [<8010e324>] (handle_IPI+0x1c0/0x1e0)
[ 2.773225] r7:f4a00100 r6:00000001 r5:00000000 r4:80b446b8
[ 2.780532] [<8010e164>] (handle_IPI) from [<801014fc>] (gic_handle_irq+0x90/0x94)
[ 2.791395] r6:f4a0010c r5:80b1aa80 r4:80b03448
[ 2.797715] [<8010146c>] (gic_handle_irq) from [<8010c88c>] (__irq_svc+0x6c/0x90)
[ 2.808656] Exception stack(0x8a08df10 to 0x8a08df58)
[ 2.815502] df00: 00000000 9fb4e500 00000005 00000096
[ 2.827235] df20: a11c1848 00000000 9fb4aef0 00000001 a19ab50b 00000000 00000004 8a08df94
[ 2.838986] df40: 8a08deb8 8a08df60 8018d50c 80601100 60000013 ffffffff
[ 2.847426] r9:8a08c000 r8:a19ab50b r7:8a08df44 r6:ffffffff r5:60000013 r4:80601100
[ 2.858839] [<80600f74>] (cpuidle_enter_state) from [<80601278>] (cpuidle_enter+0x1c/0x20)
[ 2.870806] r10:80b03148 r9:80b082e0 r8:9fb4aef0 r7:80b03140 r6:00000002 r5:80b030ec
[ 2.882375] r4:ffffe000
[ 2.886726] [<8060125c>] (cpuidle_enter) from [<80162e40>] (call_cpuidle+0x28/0x40)
[ 2.898054] [<80162e18>] (call_cpuidle) from [<801630e0>] (cpu_startup_entry+0x158/0x218)
[ 2.909933] [<80162f88>] (cpu_startup_entry) from [<8010dedc>] (secondary_start_kernel+0x150/0x15c)
[ 2.922704] r7:80b446c8
[ 2.927049] [<8010dd8c>] (secondary_start_kernel) from [<1010158c>] (0x1010158c)
[ 2.938102] r5:00000051 r4:1a07006a
[ 2.943492] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2)
Thank you in advance,
David