booting error from sd card on beaglebone black

[sont...@gmail.com]

Hi 

I am trying to boot from uSD card, but I am getting some error.  and the board not booted.

I worked by reffering to this site : https://www.digikey.com/eewiki/display/linuxonarm/BeagleBone+Black

I don't know why it didn't boot.

please let me know how to resolve it.

here is the terminal messge when it is booting

U-Boot SPL 2018.09-rc3-dirty (Apr 12 2019 - 05:32:30 -0700)

Trying to boot from MMC1

Loading Environment from EXT4... ** File not found /boot/uboot.env **

** Unable to read "/boot/uboot.env" from mmc0:1 **

U-Boot 2018.09-rc3-dirty (Apr 12 2019 - 05:32:30 -0700)

CPU  : AM335X-GP rev 2.1

I2C:   ready

DRAM:  512 MiB

No match for driver 'omap_hsmmc'

No match for driver 'omap_hsmmc'

Some drivers were not found

Reset Source: Power-on reset has occurred.

RTC 32KCLK Source: External.

MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1

Loading Environment from EXT4... ** File not found /boot/uboot.env **

** Unable to read "/boot/uboot.env" from mmc0:1 **

Board: BeagleBone Black

<ethaddr> not set. Validating first E-fuse MAC

BeagleBone Black:

BeagleBone: cape eeprom: i2c_probe: 0x54:

BeagleBone: cape eeprom: i2c_probe: 0x55:

BeagleBone: cape eeprom: i2c_probe: 0x56:

BeagleBone: cape eeprom: i2c_probe: 0x57:

Net:   eth0: MII MODE

cpsw, usb_ether

Press SPACE to abort autoboot in 2 seconds

board_name=[A335BNLT] ...

board_rev=[00C0] ...

switch to partitions #0, OK

mmc0 is current device

SD/MMC found on device 0

switch to partitions #0, OK

mmc0 is current device

Scanning mmc 0:1...

gpio: pin 56 (gpio 56) value is 0

gpio: pin 55 (gpio 55) value is 0

gpio: pin 54 (gpio 54) value is 0

gpio: pin 53 (gpio 53) value is 1

switch to partitions #0, OK

mmc0 is current device

gpio: pin 54 (gpio 54) value is 1

Checking for: /uEnv.txt ...

Checking for: /boot.scr ...

Checking for: /boot/boot.scr ...

Checking for: /boot/uEnv.txt ...

gpio: pin 55 (gpio 55) value is 1

29 bytes read in 12 ms (2 KiB/s)

Loaded environment from /boot/uEnv.txt

Checking if uname_r is set in /boot/uEnv.txt...

gpio: pin 56 (gpio 56) value is 1

Running uname_boot ...

loading /boot/vmlinuz-4.14.106-bone-rt-r20 ...

9028096 bytes read in 581 ms (14.8 MiB/s)

debug: [enable_uboot_overlays=] ...

loading /boot/dtbs/4.14.106-bone-rt-r20/am335x-boneblack.dtb ...

60915 bytes read in 29 ms (2 MiB/s)

uboot_overlays: add [enable_uboot_overlays=1] to /boot/uEnv.txt to enable...

debug: [console=ttyO0,115200n8 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait] ...

debug: [bootz 0x82000000 - 0x88000000] ...

## Flattened Device Tree blob at 88000000

   Booting using the fdt blob at 0x88000000

   Loading Device Tree to 8ffee000, end 8ffffdf2 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0

[    0.000000] Linux version 4.14.106-bone-rt-r20 (son@ubuntu) (gcc version 7.4.1 20181213 [linaro-7.4-2019.02 revision 56ec6f6b99cc167ff0c2f8e1a2eed33b1edc85d4] (Linaro GCC 7.4-2019.02)) #1 PREEMPT RT Fri Apr 12 05:04:15 PDT 2019

[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=50c5387d

[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

[    0.000000] OF: fdt: Machine model: TI AM335x BeagleBone Black

[    0.000000] Memory policy: Data cache writeback

[    0.000000] efi: Getting EFI parameters from FDT:

[    0.000000] efi: UEFI not found.

[    0.000000] cma: Reserved 48 MiB at 0x9d000000

[    0.000000] CPU: All CPU(s) started in SVC mode.

[    0.000000] AM335X ES2.1 (sgx neon)

[    0.000000] random: get_random_bytes called from start_kernel+0x8b/0x37a with crng_init=0

[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 129920

[    0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait

[    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: 452740K/524288K available (9216K kernel code, 970K rwdata, 4052K rodata, 1024K init, 638K bss, 22396K reserved, 49152K 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 : 0xe0800000 - 0xff800000   ( 496 MB)

[    0.000000]     lowmem  : 0xc0000000 - 0xe0000000   ( 512 MB)

[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)

[    0.000000]     modules : 0xbf800000 - 0xbfe00000   (   6 MB)

[    0.000000]       .text : 0xc0008000 - 0xc0a00000   (10208 kB)

[    0.000000]       .init : 0xc0f00000 - 0xc1000000   (1024 kB)

[    0.000000]       .data : 0xc1000000 - 0xc10f2948   ( 971 kB)

[    0.000000]        .bss : 0xc10fc3e8 - 0xc119bd8c   ( 639 kB)

[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1

[    0.000000] ftrace: allocating 39504 entries in 78 pages

[    0.000000] Preemptible hierarchical RCU implementation.

[    0.000000]  RCU priority boosting: priority 1 delay 500 ms.

[    0.000000]  No expedited grace period (rcu_normal_after_boot).

[    0.000000]  Tasks RCU enabled.

[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16

[    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts

[    0.000000] OMAP clockevent source: timer2 at 24000000 Hz

[    0.000012] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns

[    0.000024] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns

[    0.000031] OMAP clocksource: timer1 at 24000000 Hz

[    0.000432] timer_probe: no matching timers found

[    0.000613] Console: colour dummy device 80x30

[    0.000744] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'

[    0.000747] This ensures that you still see kernel messages. Please

[    0.000749] update your kernel commandline.

[    0.000766] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)

[    0.019174] pid_max: default: 32768 minimum: 301

[    0.019414] Security Framework initialized

[    0.019423] Yama: becoming mindful.

[    0.019496] AppArmor: AppArmor initialized

[    0.019687] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)

[    0.019695] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)

[    0.020576] CPU: Testing write buffer coherency: ok

[    0.020625] CPU0: Spectre v2: using BPIALL workaround

[    0.021383] Setting up static identity map for 0x80100000 - 0x80100054

[    0.021650] Hierarchical SRCU implementation.

[    0.024801] EFI services will not be available.

[    0.026282] devtmpfs: initialized

[    0.039844] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3

[    0.040257] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns

[    0.040284] futex hash table entries: 256 (order: 1, 8192 bytes)

[    0.043895] xor: measuring software checksum speed

[    0.083220]    arm4regs  :  1216.000 MB/sec

[    0.123174]    8regs     :   869.000 MB/sec

[    0.163169]    32regs    :  1051.000 MB/sec

[    0.163177] xor: using function: arm4regs (1216.000 MB/sec)

[    0.163195] pinctrl core: initialized pinctrl subsystem

[    0.163870] DMI not present or invalid.

[    0.164299] NET: Registered protocol family 16

[    0.167399] DMA: preallocated 256 KiB pool for atomic coherent allocations

[    0.184689] omap_hwmod: debugss: _wait_target_disable failed

[    0.229585] OMAP GPIO hardware version 0.1

[    0.240405] No ATAGs?

[    0.240422] hw-breakpoint: debug architecture 0x4 unsupported.

[    0.251524] raid6: using algorithm int32x8 gen() 0 MB/s

[    0.251542] raid6: .... xor() 0 MB/s, rmw enabled

[    0.251550] raid6: using intx1 recovery algorithm

[    0.258161] edma 49000000.edma: TI EDMA DMA engine driver

[    0.260271] SCSI subsystem initialized

[    0.260866] usbcore: registered new interface driver usbfs

[    0.260928] usbcore: registered new interface driver hub

[    0.261036] usbcore: registered new device driver usb

[    0.261485] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe

[    0.262575] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz

[    0.262814] media: Linux media interface: v0.10

[    0.262863] Linux video capture interface: v2.00

[    0.262919] pps_core: LinuxPPS API ver. 1 registered

[    0.262927] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giom...@linux.it>

[    0.262948] PTP clock support registered

[    0.263067] dmi: Firmware registration failed.

[    0.263522] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400

[    0.264096] Advanced Linux Sound Architecture Driver Initialized.

[    0.265276] NetLabel: Initializing

[    0.265290] NetLabel:  domain hash size = 128

[    0.265296] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO

[    0.265382] NetLabel:  unlabeled traffic allowed by default

[    0.266008] clocksource: Switched to clocksource timer1

[    0.410468] VFS: Disk quotas dquot_6.6.0

[    0.410560] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

[    0.411194] AppArmor: AppArmor Filesystem Enabled

[    0.420960] NET: Registered protocol family 2

[    0.421742] TCP established hash table entries: 4096 (order: 2, 16384 bytes)

[    0.421803] TCP bind hash table entries: 4096 (order: 4, 98304 bytes)

[    0.421925] TCP: Hash tables configured (established 4096 bind 4096)

[    0.422159] UDP hash table entries: 256 (order: 2, 16384 bytes)

[    0.422193] UDP-Lite hash table entries: 256 (order: 2, 16384 bytes)

[    0.422425] NET: Registered protocol family 1

[    0.423069] RPC: Registered named UNIX socket transport module.

[    0.423082] RPC: Registered udp transport module.

[    0.423089] RPC: Registered tcp transport module.

[    0.423096] RPC: Registered tcp NFSv4.1 backchannel transport module.

[    0.423902] hw perfevents: no interrupt-affinity property for /pmu, guessing.

[    0.424020] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available

[    0.426228] audit: initializing netlink subsys (disabled)

[    0.427196] audit: type=2000 audit(0.424:1): state=initialized audit_enabled=0 res=1

[    0.427295] workingset: timestamp_bits=14 max_order=17 bucket_order=3

[    0.432963] zbud: loaded

[    0.436082] NFS: Registering the id_resolver key type

[    0.436123] Key type id_resolver registered

[    0.436131] Key type id_legacy registered

[    0.436149] nfs4filelayout_init: NFSv4 File Layout Driver Registering...

[    0.436436] fuse init (API version 7.26)

[    0.444349] Key type asymmetric registered

[    0.444371] Asymmetric key parser 'x509' registered

[    0.444470] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)

[    0.444679] io scheduler noop registered

[    0.444689] io scheduler deadline registered

[    0.445012] io scheduler cfq registered (default)

[    0.445023] io scheduler mq-deadline registered

[    0.446227] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568

[    0.447141] gpio-of-helper ocp:cape-universal: ready

[    0.449209] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle

[    0.450475] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled

[    0.453253] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a 8250

[    1.227137] console [ttyS0] enabled

[    1.232888] omap_rng 48310000.rng: Random Number Generator ver. 20

[    1.239913] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0

[    1.246483] usbcore: registered new interface driver udl

[    1.253967] at24 2-0054: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[    1.261164] at24 2-0055: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[    1.268298] at24 2-0056: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[    1.275418] at24 2-0057: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[    1.284657] libphy: Fixed MDIO Bus: probed

[    1.289556] CAN device driver interface

[    1.346097] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000

[    1.353803] davinci_mdio 4a101000.mdio: detected phy mask fffffffe

[    1.360381] davinci_mdio: dt: updated phy_id[0] from phy_mask[fffffffe]

[    1.368408] libphy: 4a101000.mdio: probed

[    1.372484] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720

[    1.382519] cpsw 4a100000.ethernet: Detected MACID = f4:5e:ab:35:b8:d0

[    1.389196] cpsw 4a100000.ethernet: cpts: overflow check period 1250 (jiffies)

[    1.398335] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

[    1.404943] ehci-platform: EHCI generic platform driver

[    1.410350] ehci-omap: OMAP-EHCI Host Controller driver

[    1.415784] usbcore: registered new interface driver usb-storage

[    1.423724] am335x-phy-driver 47401300.usb-phy: 47401300.usb-phy supply vcc not found, using dummy regulator

[    1.435676] am335x-phy-driver 47401b00.usb-phy: 47401b00.usb-phy supply vcc not found, using dummy regulator

[    1.449310] musb-hdrc musb-hdrc.1: MUSB HDRC host driver

[    1.454688] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 1

[    1.462352] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002

[    1.469175] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[    1.476432] usb usb1: Product: MUSB HDRC host driver

[    1.481421] usb usb1: Manufacturer: Linux 4.14.106-bone-rt-r20 musb-hcd

[    1.488065] usb usb1: SerialNumber: musb-hdrc.1

[    1.493289] hub 1-0:1.0: USB hub found

[    1.497112] hub 1-0:1.0: 1 port detected

[    1.510401] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0

[    1.518696] i2c /dev entries driver

[    1.522728] Driver for 1-wire Dallas network protocol.

[    1.529528] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec

[    1.536839] softdog: initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0)

[    1.546596] omap_hsmmc 48060000.mmc: Got CD GPIO

[    1.631485] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2

[    1.640462] omap-aes 53500000.aes: will run requests pump with realtime priority

[    1.652417] omap-sham 53100000.sham: hw accel on OMAP rev 4.3

[    1.659797] hidraw: raw HID events driver (C) Jiri Kosina

[    1.665791] usbcore: registered new interface driver usbhid

[    1.669821] mmc0: host does not support reading read-only switch, assuming write-enable

[    1.672980] mmc0: new high speed SDHC card at address aaaa

[    1.678151] mmcblk0: mmc0:aaaa SC16G 14.8 GiB

[    1.680758]  mmcblk0: p1

[    1.694064] usbhid: USB HID core driver

[    1.698338] remoteproc remoteproc0: wkup_m3 is available

[    1.708021] NET: Registered protocol family 10

[    1.710199] mmc1: new high speed MMC card at address 0001

[    1.714129] mmcblk1: mmc1:0001 S10004 3.56 GiB

[    1.718073] mmcblk1boot0: mmc1:0001 S10004 partition 1 4.00 MiB

[    1.718275] mmcblk1boot1: mmc1:0001 S10004 partition 2 4.00 MiB

[    1.718448] mmcblk1rpmb: mmc1:0001 S10004 partition 3 4.00 MiB

[    1.719629]  mmcblk1: p1

[    1.748161] Segment Routing with IPv6

[    1.751918] mip6: Mobile IPv6

[    1.754910] NET: Registered protocol family 17

[    1.759387] can: controller area network core (rev 20170425 abi 9)

[    1.765686] NET: Registered protocol family 29

[    1.770240] Key type dns_resolver registered

[    1.774532] mpls_gso: MPLS GSO support

[    1.778461] omap_voltage_late_init: Voltage driver support not added

[    1.784852] ThumbEE CPU extension supported.

[    1.789153] Registering SWP/SWPB emulation handler

[    1.794879] registered taskstats version 1

[    1.799121] zswap: loaded using pool lzo/zbud

[    1.805577] Btrfs loaded, crc32c=crc32c-generic

[    1.810216] AppArmor: AppArmor sha1 policy hashing enabled

[    1.815739] ima: No TPM chip found, activating TPM-bypass! (rc=-19)

[    1.822114] ima: Allocated hash algorithm: sha256

[    1.864511] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/tps65217-pwrbutton/input/input0

[    1.875740] tps65217 0-0024: TPS65217 ID 0xe version 1.2

[    1.881456] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[    1.889533] tda998x 0-0070: Error -121 writing to cec:0xff

[    1.895115] tda998x 0-0070: set_page 000a err -121

[    1.958083] tda998x 0-0070: set_page 000a err -121

[    2.022073] tda998x 0-0070: set_page 0001 err -121

[    2.026043] usb 1-1: new high-speed USB device number 2 using musb-hdrc

[    2.033596] tda998x 0-0070: set_page 0001 err -121

[    2.038467] tda998x 0-0070: set_page 0200 err -121

[    2.043333] tda998x 0-0070: set_page 0201 err -121

[    2.048198] tda998x 0-0070: set_page 0202 err -121

[    2.053063] tda998x 0-0070: set_page 0203 err -121

[    2.057928] tda998x 0-0070: set_page 0204 err -121

[    2.062793] tda998x 0-0070: set_page 0205 err -121

[    2.067658] tda998x 0-0070: set_page 020e err -121

[    2.072523] tda998x 0-0070: set_page 0211 err -121

[    2.077387] tda998x 0-0070: set_page 0207 err -121

[    2.082283] tda998x 0-0070: set_page 0208 err -121

[    2.087150] tda998x 0-0070: set_page 0209 err -121

[    2.092011] tda998x 0-0070: set_page 020a err -121

[    2.096878] tda998x 0-0070: set_page 0206 err -121

[    2.101743] tda998x 0-0070: set_page 0027 err -121

[    2.106608] tda998x 0-0070: set_page 0000 err -121

[    2.111472] tda998x 0-0070: set_page 0002 err -121

[    2.116441] tilcdc 4830e000.lcdc: failed to bind 0-0070 (ops tda998x_ops): -6

[    2.123807] tilcdc 4830e000.lcdc: master bind failed: -6

[    2.129377] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz

[    2.136262] remoteproc remoteproc0: powering up wkup_m3

[    2.141561] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217168

[    2.142246] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT,00C0,'

[    2.142262] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-black - #slots=4

[    2.165507] remoteproc remoteproc0: remote processor wkup_m3 is now up

[    2.165541] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x193

[    2.170975] bone_capemgr bone_capemgr: slot #0: No cape found

[    2.186145] usb 1-1: New USB device found, idVendor=1e0e, idProduct=9001

[    2.192886] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3

[    2.198044] bone_capemgr bone_capemgr: slot #1: No cape found

[    2.205823] usb 1-1: Product: SimTech, Incorporated

[    2.210726] usb 1-1: Manufacturer: SimTech, Incorporated

[    2.216064] usb 1-1: SerialNumber: 0123456789ABCDEF

[    2.227064] bone_capemgr bone_capemgr: slot #2: No cape found

[    2.259188] bone_capemgr bone_capemgr: slot #3: No cape found

[    2.265011] bone_capemgr bone_capemgr: initialized OK.

[    2.276813] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)

[    2.285487] of_cfs_init

[    2.288079] of_cfs_init: OK

[    2.291480] ALSA device list:

[    2.294470]   No soundcards found.

[    2.304130] EXT4-fs (mmcblk0p1): INFO: recovery required on readonly filesystem

[    2.311491] EXT4-fs (mmcblk0p1): write access will be enabled during recovery

[    3.703943] EXT4-fs (mmcblk0p1): recovery complete

[    3.713872] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)

[    3.722095] VFS: Mounted root (ext4 filesystem) readonly on device 179:1.

[    3.733874] devtmpfs: mounted

[    3.739664] Freeing unused kernel memory: 1024K

[    4.083584] systemd[1]: System time before build time, advancing clock.

[    4.135281] random: systemd: uninitialized urandom read (16 bytes read)

[    4.145140] random: systemd: uninitialized urandom read (16 bytes read)

[    4.163260] systemd[1]: systemd 232 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)

[    4.182137] systemd[1]: Detected architecture arm.

Welcome to Debian GNU/Linux 9 (stretch)!

[    4.206489] systemd[1]: Set hostname to <arm>.

[    4.401471] random: systemd-gpt-aut: uninitialized urandom read (16 bytes read)

[    4.774783] systemd[1]: Reached target Swap.

[  OK  ] Reached target Swap.

[    4.790785] systemd[1]: Listening on udev Control Socket.

[  OK  ] Listening on udev Control Socket.

[    4.806628] systemd[1]: Listening on Syslog Socket.

[  OK  ] Listening on Syslog Socket.

[    4.822881] systemd[1]: Listening on Journal Audit Socket.

[  OK  ] Listening on Journal Audit Socket.

[    4.838533] systemd[1]: Listening on udev Kernel Socket.

[  OK  ] Listening on udev Kernel Socket.

[    4.854715] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.

[  OK  ] Started Dispatch Password Requests to Console Directory Watch.

[    4.878355] systemd[1]: Reached target Remote File Systems.

[  OK  ] Reached target Remote File Systems.

[  OK  ] Set up automount Arbitrary Executab…rmats File System Automount Point.

[  OK  ] Listening on /dev/initctl Compatibility Named Pipe.

[  OK  ] Listening on Journal Socket (/dev/log).

[  OK  ] Created slice User and Session Slice.

[  OK  ] Listening on fsck to fsckd communication Socket.

[  OK  ] Created slice System Slice.

[  OK  ] Created slice system-serial\x2dgetty.slice.

         Mounting Debug File System...

[  OK  ] Created slice system-getty.slice.

         Mounting POSIX Message Queue File System...

[  OK  ] Reached target Slices.

[  OK  ] Listening on Journal Socket.

         Starting Journal Service...

         Starting Create Static Device Nodes in /dev...

         Starting File System Check on Root Device...

         Starting Load Kernel Modules...

[  OK  ] Started Forward Password Requests to Wall Directory Watch.

[  OK  ] Reached target Paths.

[  OK  ] Reached target Encrypted Volumes.

[  OK  ] Mounted POSIX Message Queue File System.

[  OK  ] Mounted Debug File System.

[  OK  ] Started Create Static Device Nodes in /dev.

[  OK  ] Started Load Kernel Modules.

[  OK  ] Started File System Check Daemon to report status.

         Mounting Configuration File System...

         Starting Apply Kernel Variables...

         Mounting FUSE Control File System...

         Starting udev Kernel Device Manager...

[  OK  ] Mounted FUSE Control File System.

[  OK  ] Mounted Configuration File System.

[  OK  ] Started File System Check on Root Device.

[  OK  ] Started Apply Kernel Variables.

[  OK  ] Started Journal Service.

         Starting Remount Root and Kernel File Systems...

[  OK  ] Started udev Kernel Device Manager.

[    5.979617] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro

[  OK  ] Started Remount Root and Kernel File Systems.

         Starting udev Coldplug all Devices...

         Starting Flush Journal to Persistent Storage...

         Starting Load/Save Random Seed...

[  OK  ] Reached target Local File Systems (Pre).

[  OK  ] Reached target Local File Systems.

         Starting Raise network interfaces...

[  OK  ] Started Load/Save Random Seed.

[    6.293598] systemd-journald[142]: Received request to flush runtime journal from PID 1

[  OK  ] Started Flush Journal to Persistent Storage.

         Starting Create Volatile Files and Directories...

[  OK  ] Started Create Volatile Files and Directories.

         Starting Network Time Synchronization...

         Starting Update UTMP about System Boot/Shutdown...

[  OK  ] Started Update UTMP about System Boot/Shutdown.

[  OK  ] Started Network Time Synchronization.

[  OK  ] Reached target System Time Synchronized.

[    7.934333] net eth0: initializing cpsw version 1.12 (0)

[    7.943705] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4

[    7.966758] cpsw 4a100000.ethernet: ALE Table size 1024

[    8.063417] SMSC LAN8710/LAN8720 4a101000.mdio:00: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=4a101000.mdio:00, irq=POLL)

[    8.115125] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready

[  OK  ] Started udev Coldplug all Devices.

[  OK  ] Reached target System Initialization.

[  OK  ] Listening on D-Bus System Message Bus Socket.

[  OK  ] Started Daily Cleanup of Temporary Directories.

[  OK  ] Started Daily apt download activities.

[  OK  ] Listening on Avahi mDNS/DNS-SD Stack Activation Socket.

[  OK  ] Reached target Sockets.

[  OK  ] Reached target Basic System.

[  OK  ] Started D-Bus System Message Bus.

         Starting Connection service...

         Starting DUN service...

         Starting Telephony service...

         Starting Avahi mDNS/DNS-SD Stack...

         Starting LSB: Start busybox udhcpd at boot time...

[  OK  ] Started Regular background program processing daemon.

         Starting Generic Board Startup...

         Starting System Logging Service...

         Starting LSB: Load kernel modules needed to enable cpufreq scaling...

         Starting Login Service...

[  OK  ] Started Daily apt upgrade and clean activities.

[  OK  ] Reached target Timers.

[  OK  ] Started System Logging Service.

[  OK  ] Started LSB: Start busybox udhcpd at boot time.

[  OK  ] Started DUN service.

[  OK  ] Started Telephony service.

[  OK  ] Started Avahi mDNS/DNS-SD Stack.

[  OK  ] Started Connection service.

[  OK  ] Started Login Service.

         Starting Hostname Service...

         Starting WPA supplicant...

[  OK  ] Started WPA supplicant.

[  OK  ] Started LSB: Load kernel modules needed to enable cpufreq scaling.

         Starting LSB: set CPUFreq kernel parameters...

[  OK  ] Started Hostname Service.

[  OK  ] Started LSB: set CPUFreq kernel parameters.

[  OK  ] Found device /dev/ttyS0.

[  OK  ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.

[   26.237686] systemd[1]: apt-daily.timer: Adding 11h 16min 42.325144s random time.

[   26.245674] systemd[1]: apt-daily-upgrade.timer: Adding 55min 47.417097s random time.

[   27.247368] systemd[1]: apt-daily.timer: Adding 6h 38min 52.788524s random time.

[   27.255318] systemd[1]: apt-daily-upgrade.timer: Adding 14min 6.786091s random time.

         Starting OpenBSD Secure Shell server...

[  OK  ] Started OpenBSD Secure Shell server.

[*     ] (1 of 2) A start job is running for…network interfaces (31s / 5m

Here is the shell script to setup uSD card

#!/bin/bash

# select sd card
ROOTDRIVE=`mount | grep 'on / ' | awk {'print $1'} |  cut -c6-9`
if [ "$ROOTDRIVE" = "root" ]; then
    ROOTDRIVE=`readlink /dev/root | cut -c1-3`
else
    ROOTDRIVE=`echo $ROOTDRIVE | cut -c1-3`
fi

echo "root drive is ${ROOTDRIVE}"

echo "\nAvailable Drives to write images to: \n"
echo "#  major   minor    size   name "
cat /proc/partitions | grep -v $ROOTDRIVE | grep '\<sd.\>\|\<mmcblk.\>' | grep -n ''
echo " "

DEVICEDRIVENUMBER=
while true;
do
    read -p 'Enter Device Number or 'n' to exit: ' DEVICEDRIVENUMBER
    echo " "
        if [ "$DEVICEDRIVENUMBER" = 'n' ]; then
                exit 1
        fi

        if [ "$DEVICEDRIVENUMBER" = "" ]; then
                echo -e "These are the Drives available to write images to:"
                echo "#  major   minor    size   name "
                cat /proc/partitions | grep -v $ROOTDRIVE | grep '\<sd.\>\|\<mmcblk.\>' | grep -n ''
                echo " "
               continue
        fi

    DEVICEDRIVENAME=`cat /proc/partitions | grep -v $ROOTDRIVE | grep '\<sd.\>\|\<mmcblk.\>' | grep -n '' | grep "${DEVICEDRIVENUMBER}:" | awk '{print $5}'`
    if [ -n "$DEVICEDRIVENAME" ]
    then
            DRIVE=/dev/$DEVICEDRIVENAME
            DEVICESIZE=`cat /proc/partitions | grep -v $ROOTDRIVE | grep '\<sd.\>\|\<mmcblk.\>' | grep -n '' | grep "${DEVICEDRIVENUMBER}:" | awk '{print $4}'`
        break
    else
        echo -e "Invalid selection!"
                echo -e "These are the only Drives available to write images to: \n"
                echo "#  major   minor    size   name "
                cat /proc/partitions | grep -v $ROOTDRIVE | grep '\<sd.\>\|\<mmcblk.\>' | grep -n ''
                echo " "
    fi
done

DISK=/dev/$DEVICEDRIVENAME
NUM_OF_DRIVES=`df | grep -c $DEVICEDRIVENAME`

# Erase partition table/labels on microSD card
sudo dd if=/dev/zero of=${DISK} bs=1M count=10

# Install bootloader
sudo dd if=./u-boot/MLO of=${DISK} count=1 seek=1 bs=128k
sudo dd if=./u-boot/u-boot.img of=${DISK} count=2 seek=1 bs=384k

# Create partition layout : sfdisk version = 2.31.1
sudo sfdisk ${DISK} <<-__EOF__
4M,,L,*
__EOF__

#format partition : mkfs.ext4 version = 1.44.1
sudo mkfs.ext4 -L rootfs -O ^metadata_csum,^64bit ${DISK}1

# mount partition : son is username
sudo mount ${DISK}1 /media/son/rootfs/

# backup bootloader
sudo mkdir -p /media/son/rootfs/opt/backup/uboot/
sudo cp -v ./u-boot/MLO /media/son/rootfs/opt/backup/uboot/
sudo cp -v ./u-boot/u-boot.img /media/son/rootfs/opt/backup/uboot/

# kernel version : 4.14.106-bone-rt-r20
kernel_version=`cat ./bb-kernel/kernel_version`

# copy root file system
sudo tar xfvp ./debian-*.*-*-armhf-*/armhf-rootfs-*.tar -C /media/son/rootfs/
sync
sudo chown root:root /media/son/rootfs/
sudo chmod 755 /media/son/rootfs/

# set uname-r in /boot/uEnv.txt
sudo sh -c "echo 'uname_r=${kernel_version}' >> /media/son/rootfs/boot/uEnv.txt"

# copy kernel image
sudo cp -v ./bb-kernel/deploy/${kernel_version}.zImage /media/son/rootfs/boot/vmlinuz-${kernel_version}

# copy kernel device tree binaries
sudo mkdir -p /media/son/rootfs/boot/dtbs/${kernel_version}/
sudo tar xfv ./bb-kernel/deploy/${kernel_version}-dtbs.tar.gz -C /media/son/rootfs/boot/dtbs/${kernel_version}/

# copy kernel modules
sudo tar xfv ./bb-kernel/deploy/${kernel_version}-modules.tar.gz -C /media/son/rootfs/

# set file system table
sudo sh -c "echo '/dev/mmcblk0p1 / auto errors=remount-ro 0 1' >> /media/son/rootfs/etc/fstab"

# copy network interface file
sudo cp -v ./lib/interfaces /media/son/rootfs/etc/network/

# using a shared sd card with multiple beaglebone
sudo cp -v ./lib/70-persistent-net.rules /media/son/rootfs/etc/udev/rules.d/

sync

[Gábor Bence Szemes]

Hey :)

I've run into the very same problem. 
I created two partitions: 

• smaller FAT: I copied the 
• MLO (secondary bootloader)
• u-boot.img on it
• Ext4: It contains the:
• the kernel and device tree under /boot
• rootfs

When I insert the SD card into my BBB and power it up while pressing S2, I get the very same error message:

"Loading Environment from EXT4... ** File not found /boot/uboot.env **

** Unable to read "/boot/uboot.env" from mmc0:1 *"

I don't really understand it. It looks like my bootloader on the first partition didn't even get started. Furthermore it seems to look for a file which I don't have (uboot.env). But even if I did have it, my /boot folder in on the second partition, not on the first one...

Did you manage to resolve it?

Thank you in advance!

[Robert Nelson]

On Tue, Apr 30, 2019 at 6:44 AM Gábor Bence Szemes
<szemes....@gmail.com> wrote:
>
> Hey :)
>
> I've run into the very same problem.
> I created two partitions:
>
> smaller FAT: I copied the
>
> MLO (secondary bootloader)
> u-boot.img on it
>
> Ext4: It contains the:
>
> the kernel and device tree under /boot
> rootfs
>
> When I insert the SD card into my BBB and power it up while pressing S2, I get the very same error message:
>
> "Loading Environment from EXT4... ** File not found /boot/uboot.env **
>
> ** Unable to read "/boot/uboot.env" from mmc0:1 *"
>
> I don't really understand it. It looks like my bootloader on the first partition didn't even get started. Furthermore it seems to look for a file which I don't have (uboot.env). But even if I did have it, my /boot folder in on the second partition, not on the first one...
>
> Did you manage to resolve it?

It's not an error.. /boot/uboot.env is an "environment" file, such
that when you run "saveenv" that's where it would be located, but your
using a different partition layout, so either patch u-boot or just
ignore it..

Regards,

--
Robert Nelson
https://rcn-ee.com/