Build root(can't open /dev/ttyO0: No such file or directory )

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beaglebone-blackdebiannewbiessoftwaresupport

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jennifer Dsilva

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Sep 6, 2019, 7:43:38 AM9/6/19

to BeagleBoard

Hi ,

I am using Build root buildroot-2018.08. I am doing nfs mounting on Beaglebone black.

while booting I am getting the following logs.

How to fix this issue..Need help

ubuntu@ubuntu-MS-7A15:~$ sudo minicom

[sudo] password for ubuntu:

Welcome to minicom 2.7.1

OPTIONS: I18n

Compiled on Aug 13 2017, 15:25:34.

Port /dev/ttyUSB0, 16:43:29

Press CTRL-A Z for help on special keys

U-Boot SPL 2018.09-00002-g0b54a51eee (Sep 10 2018 - 19:41:39 -0500)

Trying to boot from MMC2

Loading Environment from EXT4...

** Unable to use mmc 0:1 for loading the env **

U-Boot 2018.09-00002-g0b54a51eee (Sep 10 2018 - 19:41:39 -0500), Build: jenkins5

CPU : AM335X-GP rev 2.1

I2C: ready

DRAM: 512 MiB

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...

** Unable to use mmc 0:1 for loading the env **

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 ...

500 bytes read in 5 ms (97.7 KiB/s)

gpio: pin 55 (gpio 55) value is 1

Loaded environment from /uEnv.txt

Importing environment from mmc ...

Checking if uenvcmd is set ...

gpio: pin 56 (gpio 56) value is 1

Running uenvcmd ...

Booting from network...

link up on port 0, speed 100, full duplex

Using cpsw device

TFTP from server 192.168.7.1; our IP address is 192.168.7.3

Filename 'uImage'.

Load address: 0x82000000

Loading: #################################################################

#################################################################

##############################################################

2.8 MiB/s

done

Bytes transferred = 8635904 (83c600 hex)

link up on port 0, speed 100, full duplex

Using cpsw device

TFTP from server 192.168.7.1; our IP address is 192.168.7.3

Filename 'am335x-boneblack.dtb'.

Load address: 0x88000000

Loading: ############

2.9 MiB/s

done

Bytes transferred = 56827 (ddfb hex)

## Booting kernel from Legacy Image at 82000000 ...

Image Name: Linux-4.4.62

Created: 2019-08-31 6:44:19 UTC

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 8635840 Bytes = 8.2 MiB

Load Address: 80008000

Entry Point: 80008000

Verifying Checksum ... OK

## Flattened Device Tree blob at 88000000

Booting using the fdt blob at 0x88000000

Loading Kernel Image ... OK

Loading Device Tree to 8ffef000, end 8ffffdfa ... OK

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0

[ 0.000000] Initializing cgroup subsys cpuset

[ 0.000000] Initializing cgroup subsys cpu

[ 0.000000] Initializing cgroup subsys cpuacct

[ 0.000000] Linux version 4.4.62 (ubuntu@ubuntu-MS-7A15) (gcc version 7.4.0 9

[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d

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

[ 0.000000] Machine model: TI AM335x BeagleBone Black

[ 0.000000] cma: Reserved 48 MiB at 0x9c800000

[ 0.000000] Memory policy: Data cache writeback

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

[ 0.000000] AM335X ES2.1 (sgx neon )

[ 0.000000] PERCPU: Embedded 13 pages/cpu @df920000 s24268 r8192 d20788 u5328

[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pa8

[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/nfs rw roo5

[ 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: 449892K/522240K available (11372K kernel code, 917K rwda)

[ 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 : 0xbf000000 - 0xbfe00000 ( 14 MB)

[ 0.000000] .text : 0xc0008000 - 0xc0ed8340 (15169 kB)

[ 0.000000] .init : 0xc0ed9000 - 0xc0f92000 ( 740 kB)

[ 0.000000] .data : 0xc0f92000 - 0xc1077488 ( 918 kB)

[ 0.000000] .bss : 0xc107a000 - 0xc115cd50 ( 908 kB)

[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, 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=2 to nr_cpu_ids=1.

[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=1

[ 0.000000] NR_IRQS:16 nr_irqs:16 16

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

[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz

[ 0.000016] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 8947s

[ 0.000038] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, mas

[ 0.000050] OMAP clocksource: timer1 at 24000000 Hz

[ 0.001040] clocksource_probe: no matching clocksources found

[ 0.001245] Console: colour dummy device 80x30

[ 0.001275] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'

[ 0.001282] This ensures that you still see kernel messages. Please

[ 0.001288] update your kernel commandline.

[ 0.001310] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)

[ 0.046811] pid_max: default: 32768 minimum: 301

[ 0.046959] Security Framework initialized

[ 0.046973] Yama: becoming mindful.

[ 0.047011] AppArmor: AppArmor disabled by boot time parameter

[ 0.047183] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)

[ 0.047195] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)

[ 0.048049] Initializing cgroup subsys io

[ 0.048083] Initializing cgroup subsys memory

[ 0.048128] Initializing cgroup subsys devices

[ 0.048147] Initializing cgroup subsys freezer

[ 0.048163] Initializing cgroup subsys net_cls

[ 0.048177] Initializing cgroup subsys perf_event

[ 0.048192] Initializing cgroup subsys net_prio

[ 0.048214] Initializing cgroup subsys pids

[ 0.048272] CPU: Testing write buffer coherency: ok

[ 0.048335] ftrace: allocating 34533 entries in 102 pages

[ 0.146052] CPU0: thread -1, cpu 0, socket -1, mpidr 0

[ 0.146182] Setting up static identity map for 0x80008280 - 0x800082e0

[ 0.150369] Brought up 1 CPUs

[ 0.150395] SMP: Total of 1 processors activated (995.32 BogoMIPS).

[ 0.150404] CPU: All CPU(s) started in SVC mode.

[ 0.152149] devtmpfs: initialized

[ 0.169975] VFP support v0.3: implementor 41 architecture 3 part 30 variant 3

[ 0.189676] omap_hwmod: debugss: _wait_target_disable failed

[ 0.231074] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, ms

[ 0.231111] futex hash table entries: 256 (order: 2, 16384 bytes)

[ 0.235271] xor: measuring software checksum speed

[ 0.274812] arm4regs : 1219.000 MB/sec

[ 0.314805] 8regs : 1092.000 MB/sec

[ 0.354807] 32regs : 1172.000 MB/sec

[ 0.394805] neon : 1748.000 MB/sec

[ 0.394813] xor: using function: neon (1748.000 MB/sec)

[ 0.394856] pinctrl core: initialized pinctrl subsystem

[ 0.396861] NET: Registered protocol family 16

[ 0.399732] DMA: preallocated 256 KiB pool for atomic coherent allocations

[ 0.400956] cpuidle: using governor ladder

[ 0.400976] cpuidle: using governor menu

[ 0.406688] OMAP GPIO hardware version 0.1

[ 0.418876] No ATAGs?

[ 0.418914] hw-breakpoint: debug architecture 0x4 unsupported.

[ 0.419467] omap4_sram_init:Unable to allocate sram needed to handle errata 8

[ 0.419481] omap4_sram_init:Unable to get sram pool needed to handle errata 8

[ 0.498822] raid6: int32x1 gen() 264 MB/s

[ 0.566815] raid6: int32x1 xor() 223 MB/s

[ 0.634859] raid6: int32x2 gen() 333 MB/s

[ 0.702865] raid6: int32x2 xor() 280 MB/s

[ 0.770908] raid6: int32x4 gen() 330 MB/s

[ 0.838826] raid6: int32x4 xor() 267 MB/s

[ 0.906861] raid6: int32x8 gen() 312 MB/s

[ 0.974896] raid6: int32x8 xor() 233 MB/s

[ 1.042819] raid6: neonx1 gen() 1454 MB/s

[ 1.110819] raid6: neonx1 xor() 846 MB/s

[ 1.178822] raid6: neonx2 gen() 1937 MB/s

[ 1.246819] raid6: neonx2 xor() 1206 MB/s

[ 1.314807] raid6: neonx4 gen() 1160 MB/s

[ 1.382834] raid6: neonx4 xor() 837 MB/s

[ 1.450841] raid6: neonx8 gen() 1074 MB/s

[ 1.518836] raid6: neonx8 xor() 788 MB/s

[ 1.518844] raid6: using algorithm neonx2 gen() 1937 MB/s

[ 1.518851] raid6: .... xor() 1206 MB/s, rmw enabled

[ 1.518858] raid6: using intx1 recovery algorithm

[ 1.528185] edma 49000000.edma: TI EDMA DMA engine driver

[ 1.532820] SCSI subsystem initialized

[ 1.533609] usbcore: registered new interface driver usbfs

[ 1.533695] usbcore: registered new interface driver hub

[ 1.533813] usbcore: registered new device driver usb

[ 1.534412] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_we

[ 1.534463] omap_i2c 4819c000.i2c: could not find pctldev for node /ocp/l4_we

[ 1.534583] media: Linux media interface: v0.10

[ 1.534644] Linux video capture interface: v2.00

[ 1.534748] pps_core: LinuxPPS API ver. 1 registered

[ 1.534784] PTP clock support registered

[ 1.535796] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400

[ 1.537244] NetLabel: Initializing

[ 1.537261] NetLabel: domain hash size = 128

[ 1.537267] NetLabel: protocols = UNLABELED CIPSOv4

[ 1.537330] NetLabel: unlabeled traffic allowed by default

[ 1.537748] clocksource: Switched to clocksource timer1

[ 1.650639] NET: Registered protocol family 2

[ 1.651499] TCP established hash table entries: 4096 (order: 2, 16384 bytes)

[ 1.651549] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)

[ 1.651608] TCP: Hash tables configured (established 4096 bind 4096)

[ 1.651684] UDP hash table entries: 256 (order: 1, 8192 bytes)

[ 1.651705] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)

[ 1.652024] NET: Registered protocol family 1

[ 1.652654] RPC: Registered named UNIX socket transport module.

[ 1.652671] RPC: Registered udp transport module.

[ 1.652677] RPC: Registered tcp transport module.

[ 1.652684] RPC: Registered tcp NFSv4.1 backchannel transport module.

[ 1.653983] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 countee

[ 1.656616] audit: initializing netlink subsys (disabled)

[ 1.656711] audit: type=2000 audit(1.588:1): initialized

[ 1.667002] zbud: loaded

[ 1.667778] VFS: Disk quotas dquot_6.6.0

[ 1.668056] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

[ 1.670824] NFS: Registering the id_resolver key type

[ 1.670907] Key type id_resolver registered

[ 1.670916] Key type id_legacy registered

[ 1.670946] nfs4filelayout_init: NFSv4 File Layout Driver Registering...

[ 1.671323] fuse init (API version 7.23)

[ 1.671960] SGI XFS with ACLs, security attributes, realtime, no debug enabld

[ 1.680439] Block layer SCSI generic (bsg) driver version 0.4 loaded (major )

[ 1.680694] io scheduler noop registered

[ 1.680711] io scheduler deadline registered

[ 1.680776] io scheduler cfq registered (default)

[ 1.682352] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568

[ 1.684172] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle

[ 1.685511] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled

[ 1.688851] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 158, base_baud 0

[ 2.571217] console [ttyS0] enabled

[ 2.576310] [drm] Initialized drm 1.1.0 20060810

[ 2.633778] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6

[ 2.639950] davinci_mdio 4a101000.mdio: detected phy mask fffffffe

[ 2.646556] davinci_mdio: dt: updated phy_id[0] from phy_mask[fffffffe]

[ 2.654508] libphy: 4a101000.mdio: probed

[ 2.658639] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, dri0

[ 2.668688] cpsw 4a100000.ethernet: Detected MACID = b0:d5:cc:83:40:1c

[ 2.675545] cpsw 4a100000.ethernet: cpts: overflow check period 2125

[ 2.683810] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

[ 2.690617] ehci-platform: EHCI generic platform driver

[ 2.696187] ehci-omap: OMAP-EHCI Host Controller driver

[ 2.701983] usbcore: registered new interface driver usb-storage

[ 2.710253] 47401300.usb-phy supply vcc not found, using dummy regulator

[ 2.721259] 47401b00.usb-phy supply vcc not found, using dummy regulator

[ 2.730666] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver

[ 2.736526] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus1

[ 2.744720] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002

[ 2.751599] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber1

[ 2.758877] usb usb1: Product: MUSB HDRC host driver

[ 2.763879] usb usb1: Manufacturer: Linux 4.4.62 musb-hcd

[ 2.769316] usb usb1: SerialNumber: musb-hdrc.1.auto

[ 2.775306] hub 1-0:1.0: USB hub found

[ 2.779263] hub 1-0:1.0: 1 port detected

[ 2.792635] mousedev: PS/2 mouse device common for all mice

[ 2.800924] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0

[ 2.809030] i2c /dev entries driver

[ 2.814298] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec

[ 2.821684] cpuidle: enable-method property 'ti,am3352' found operations

[ 2.829190] omap_hsmmc 48060000.mmc: Got CD GPIO

[ 2.899282] hidraw: raw HID events driver (C) Jiri Kosina

[ 2.905561] usbcore: registered new interface driver usbhid

[ 2.911237] usbhid: USB HID core driver

[ 2.915505] ashmem: initialized

[ 2.919726] remoteproc0: wkup_m3 is available

[ 2.924267] remoteproc0: Note: remoteproc is still under development and co.

[ 2.933315] remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backwa.

[ 2.947907] NET: Registered protocol family 10

[ 2.954320] mip6: Mobile IPv6

[ 2.957483] NET: Registered protocol family 17

[ 2.962042] mmc0: host does not support reading read-only switch, assuming we

[ 2.970274] Key type dns_resolver registered

[ 2.974607] mpls_gso: MPLS GSO support

[ 2.978742] omap_voltage_late_init: Voltage driver support not added

[ 2.985311] mmc0: new high speed SDHC card at address aaaa

[ 2.992002] PM: Cannot get wkup_m3_ipc handle

[ 2.997514] ThumbEE CPU extension supported.

[ 3.002038] mmcblk0: mmc0:aaaa SC16G 14.8 GiB

[ 3.007452] Registering SWP/SWPB emulation handler

[ 3.012501] mmcblk0: p1 p2

[ 3.017390] registered taskstats version 1

[ 3.022084] zswap: loaded using pool lzo/zbud

[ 3.034216] Btrfs loaded

[ 3.042355] Key type encrypted registered

[ 3.049419] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i20

[ 3.073562] mmc1: MAN_BKOPS_EN bit is not set

[ 3.085712] mmc1: new high speed MMC card at address 0001

[ 3.094009] tps65217 0-0024: TPS65217 ID 0xe version 1.2

[ 3.099626] mmcblk1: mmc1:0001 S10004 3.56 GiB

[ 3.104845] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[ 3.112415] mmcblk1boot0: mmc1:0001 S10004 partition 1 4.00 MiB

[ 3.118961] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz

[ 3.125038] mmcblk1boot1: mmc1:0001 S10004 partition 2 4.00 MiB

[ 3.132347] mmcblk1: p1

[ 3.136867] at24 2-0054: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[ 3.146651] at24 2-0055: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[ 3.154243] at24 2-0056: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[ 3.161617] at24 2-0057: 32768 byte 24c256 EEPROM, writable, 1 bytes/write

[ 3.168609] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz

[ 3.175560] remoteproc0: powering up wkup_m3

[ 3.180058] remoteproc0: Booting fw image am335x-pm-firmware.elf, size 21718

[ 3.187633] remoteproc0: remote processor wkup_m3 is now up

[ 3.193333] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x192

[ 3.204148] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT,00C0,3816BBBK197'

[ 3.211511] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-bl4

[ 3.257760] bone_capemgr bone_capemgr: slot #0: No cape found

[ 3.301750] bone_capemgr bone_capemgr: slot #1: No cape found

[ 3.345749] bone_capemgr bone_capemgr: slot #2: No cape found

[ 3.389749] bone_capemgr bone_capemgr: slot #3: No cape found

[ 3.395656] bone_capemgr bone_capemgr: initialized OK.

[ 3.403005] PM: bootloader does not support rtc-only!

[ 3.409247] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:)

[ 3.418128] of_cfs_init

[ 3.420705] of_cfs_init: OK

[ 3.442312] net eth0: initializing cpsw version 1.12 (0)

[ 3.447704] net eth0: initialized cpsw ale version 1.4

[ 3.452885] net eth0: ALE Table size 1024

[ 3.459532] net eth0: phy found : id is : 0x7c0f1

[ 3.470619] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready

[ 6.474755] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow cox

[ 6.482973] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

[ 6.498156] IP-Config: Guessing netmask 255.255.255.0

[ 6.503574] IP-Config: Complete:

[ 6.506856] device=eth0, hwaddr=b0:d5:cc:83:40:1c, ipaddr=192.168.7.3, 5

[ 6.517268] host=192.168.7.3, domain=, nis-domain=(none)

[ 6.523055] bootserver=255.255.255.255, rootserver=192.168.7.1, rootpat=

[ 6.531189] Waiting 5 sec before mounting root device...

[ 11.556995] VFS: Mounted root (nfs4 filesystem) on device 0:17.

[ 11.564217] devtmpfs: mounted

[ 11.568168] Freeing unused kernel memory: 740K (c0ed9000 - c0f92000)

Starting logging: OK

Initializing random number generator... [ 12.125522] random: dd: uninitialize)

done.

Starting network: ip: RTNETLINK answers: File exists

FAIL

[ 12.455454] random: nonblocking pool is initialized

Starting sshd: OK

can't open /dev/ttyO0: No such file or directory

sven.n...@sct.se

unread,

Sep 10, 2019, 12:22:58 PM9/10/19

to BeagleBoard

Hi.

The serial ports have been default-renamed from ttyOx to ttySx.

There is a kernel config to not do this.

Or you can create links from /dev/ttyOx to /dev/ttySx so that programs trying to use ttyOx works.