Start Raspbian on Raspberry Pi Zero W board.

boot-raspbiam-pri-zero-w.log

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.19.75+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1270 Tue Sep 24 18:38:54 BST 2019
[    0.000000] CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi Zero W Rev 1.1
[    0.000000] Memory policy: Data cache writeback
[    0.000000] cma: Reserved 8 MiB at 0x1b400000
[    0.000000] random: get_random_bytes called from start_kernel+0x8c/0x49c with crng_init=0
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 113680
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbswap=1 smsc95xx.macaddr=B8:27:EB:14:45:10 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000  console=ttyS0,115200 console=tty1 root=PARTUUID=6c586e13-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[    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: 434424K/458752K available (6973K kernel code, 635K rwdata, 2080K rodata, 464K init, 797K bss, 16136K reserved, 8192K cma-reserved)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xdc800000 - 0xff800000   ( 560 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xdc000000   ( 448 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0x(ptrval) - 0x(ptrval)   (6975 kB)
[    0.000000]       .init : 0x(ptrval) - 0x(ptrval)   ( 464 kB)
[    0.000000]       .data : 0x(ptrval) - 0x(ptrval)   ( 636 kB)
[    0.000000]        .bss : 0x(ptrval) - 0x(ptrval)   ( 798 kB)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] ftrace: allocating 25197 entries in 74 pages
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000031] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000091] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000219] bcm2835: system timer (irq = 27)
[    0.000636] Console: colour dummy device 80x30
[    0.001273] console [tty1] enabled
[    0.001362] Calibrating delay loop... 697.95 BogoMIPS (lpj=3489792)
[    0.060395] pid_max: default: 32768 minimum: 301
[    0.060967] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.061027] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.062465] CPU: Testing write buffer coherency: ok
[    0.063864] Setting up static identity map for 0x8200 - 0x8238
[    0.065358] devtmpfs: initialized
[    0.075989] VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
[    0.076463] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.076542] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.077928] pinctrl core: initialized pinctrl subsystem
[    0.079548] NET: Registered protocol family 16
[    0.082790] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.089810] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
[    0.089888] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.090056] Serial: AMBA PL011 UART driver
[    0.093378] bcm2835-mbox 2000b880.mailbox: mailbox enabled
[    0.137370] bcm2835-dma 20007000.dma: DMA legacy API manager at (ptrval), dmachans=0x1
[    0.139967] SCSI subsystem initialized
[    0.140284] usbcore: registered new interface driver usbfs
[    0.140442] usbcore: registered new interface driver hub
[    0.140703] usbcore: registered new device driver usb
[    0.161132] raspberrypi-firmware soc:firmware: Attached to firmware from 2019-09-24 17:37, variant start
[    0.171165] raspberrypi-firmware soc:firmware: Firmware hash is 6820edeee4ef3891b95fc01cf02a7abd7ca52f17
[    0.183542] clocksource: Switched to clocksource timer
[    0.287926] VFS: Disk quotas dquot_6.6.0
[    0.288109] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.288479] FS-Cache: Loaded
[    0.288863] CacheFiles: Loaded
[    0.308272] NET: Registered protocol family 2
[    0.309655] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[    0.309777] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    0.309892] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[    0.310015] TCP: Hash tables configured (established 4096 bind 4096)
[    0.310208] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.310277] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.310715] NET: Registered protocol family 1
[    0.311867] RPC: Registered named UNIX socket transport module.
[    0.311931] RPC: Registered udp transport module.
[    0.311963] RPC: Registered tcp transport module.
[    0.311991] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.314269] hw perfevents: no irqs for PMU, sampling events not supported
[    0.314393] hw perfevents: enabled with armv6_1176 PMU driver, 3 counters available
[    0.318521] Initialise system trusted keyrings
[    0.318985] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[    0.334134] FS-Cache: Netfs 'nfs' registered for caching
[    0.335503] NFS: Registering the id_resolver key type
[    0.335602] Key type id_resolver registered
[    0.335638] Key type id_legacy registered
[    0.335690] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.341363] Key type asymmetric registered
[    0.341434] Asymmetric key parser 'x509' registered
[    0.341570] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[    0.342093] io scheduler noop registered
[    0.342152] io scheduler deadline registered (default)
[    0.342787] io scheduler cfq registered
[    0.342838] io scheduler mq-deadline registered (default)
[    0.342874] io scheduler kyber registered
[    0.345694] bcm2708_fb soc:fb: FB found 1 display(s)
[    0.355042] Console: switching to colour frame buffer device 82x26
[    0.362488] bcm2708_fb soc:fb: Registered framebuffer for display 0, size 656x416
[    0.370005] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled
[    0.375841] bcm2835-rng 20104000.rng: hwrng registered
[    0.379118] vc-mem: phys_addr:0x00000000 mem_base=0x1ec00000 mem_size:0x20000000(512 MiB)
[    0.385928] vc-sm: Videocore shared memory driver
[    0.389592] gpiomem-bcm2835 20200000.gpiomem: Initialised: Registers at 0x20200000
[    0.416233] brd: module loaded
[    0.432800] loop: module loaded
[    0.436850] Loading iSCSI transport class v2.0-870.
[    0.440758] usbcore: registered new interface driver smsc95xx
[    0.443701] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    0.474651] dwc_otg 20980000.usb: base=(ptrval)
[    0.677885] Core Release: 2.80a
[    0.680761] Setting default values for core params
[    0.683734] Finished setting default values for core params
[    0.887119] Using Buffer DMA mode
[    0.890064] Periodic Transfer Interrupt Enhancement - disabled
[    0.892951] Multiprocessor Interrupt Enhancement - disabled
[    0.895866] OTG VER PARAM: 0, OTG VER FLAG: 0
[    0.898750] Dedicated Tx FIFOs mode
[    0.902380] WARN::dwc_otg_hcd_init:1045: FIQ DMA bounce buffers: virt = db514000 dma = 0x5b514000 len=9024
[    0.908084] FIQ FSM acceleration enabled for :
[    0.908084] Non-periodic Split Transactions
[    0.908084] Periodic Split Transactions
[    0.908084] High-Speed Isochronous Endpoints
[    0.908084] Interrupt/Control Split Transaction hack enabled
[    0.921106] WARN::hcd_init_fiq:457: FIQ on core 0
[    0.923755] WARN::hcd_init_fiq:458: FIQ ASM at c04fdd70 length 36
[    0.926334] WARN::hcd_init_fiq:497: MPHI regs_base at dc810000
[    0.928966] dwc_otg 20980000.usb: DWC OTG Controller
[    0.931603] dwc_otg 20980000.usb: new USB bus registered, assigned bus number 1
[    0.934360] dwc_otg 20980000.usb: irq 56, io mem 0x00000000
[    0.937018] Init: Port Power? op_state=1
[    0.939574] Init: Power Port (0)
[    0.942485] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[    0.947655] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.950420] usb usb1: Product: DWC OTG Controller
[    0.953112] usb usb1: Manufacturer: Linux 4.19.75+ dwc_otg_hcd
[    0.955907] usb usb1: SerialNumber: 20980000.usb
[    0.959737] hub 1-0:1.0: USB hub found
[    0.962433] hub 1-0:1.0: 1 port detected
[    0.966738] usbcore: registered new interface driver usb-storage
[    0.969931] mousedev: PS/2 mouse device common for all mice
[    0.974304] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    0.977512] bcm2835-cpufreq: min=700000 max=1000000
[    0.981041] sdhci: Secure Digital Host Controller Interface driver
[    0.983926] sdhci: Copyright(c) Pierre Ossman
[    0.987364] mmc-bcm2835 20300000.mmcnr: could not get clk, deferring probe
[    0.991043] sdhost-bcm2835 20202000.mmc: could not get clk, deferring probe
[    0.994327] sdhci-pltfm: SDHCI platform and OF driver helper
[    0.997894] ledtrig-cpu: registered to indicate activity on CPUs
[    1.001016] hidraw: raw HID events driver (C) Jiri Kosina
[    1.004312] usbcore: registered new interface driver usbhid
[    1.007321] usbhid: USB HID core driver
[    1.011270] vchiq: vchiq_init_state: slot_zero = (ptrval), is_master = 0
[    1.016586] [vc_sm_connected_init]: start
[    1.027075] [vc_sm_connected_init]: end - returning 0
[    1.031794] Initializing XFRM netlink socket
[    1.034812] NET: Registered protocol family 17
[    1.037719] Key type dns_resolver registered
[    1.042297] registered taskstats version 1
[    1.045200] Loading compiled-in X.509 certificates
[    1.058393] uart-pl011 20201000.serial: cts_event_workaround enabled
[    1.061387] 20201000.serial: ttyAMA0 at MMIO 0x20201000 (irq = 81, base_baud = 0) is a PL011 rev2
[    1.069549] console [ttyS0] disabled
[    1.072472] 20215040.serial: ttyS0 at MMIO 0x0 (irq = 53, base_baud = 31250000) is a 16550
[    2.010529] console [ttyS0] enabled
[    2.018798] mmc-bcm2835 20300000.mmcnr: mmc_debug:0 mmc_debug2:0
[    2.027926] mmc-bcm2835 20300000.mmcnr: DMA channel allocated
[    2.066475] sdhost: log_buf @ (ptrval) (5b513000)
[    2.100838] random: fast init done
[    2.117310] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[    2.125814] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[    2.135937] of_cfs_init
[    2.141257] of_cfs_init: OK
[    2.168219] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    2.176950] Waiting for root device PARTUUID=6c586e13-02...
[    2.186944] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    2.198575] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    2.236647] mmc0: host does not support reading read-only switch, assuming write-enable
[    2.252896] mmc0: new high speed SDHC card at address 0001
[    2.263803] mmcblk0: mmc0:0001 GB1QT 29.8 GiB
[    2.274184]  mmcblk0: p1 p2
[    2.321286] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.335062] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    2.356147] devtmpfs: mounted
[    2.367432] Freeing unused kernel memory: 464K
[    2.374853] This architecture does not have kernel memory protection.
[    2.384254] Run /sbin/init as init process
[    2.417420] mmc1: new high speed SDIO card at address 0001
[    3.154004] systemd[1]: System time before build time, advancing clock.
[    3.329961] NET: Registered protocol family 10
[    3.339619] Segment Routing with IPv6
[    3.407602] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    3.439940] systemd[1]: Detected architecture arm.
[    3.470188] systemd[1]: Set hostname to <raspberrypi>.
[    3.489669] systemd[1]: Failed to bump fs.file-max, ignoring: Invalid argument
[    5.313240] systemd[1]: File /lib/systemd/system/systemd-journald.service:12 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.
[    5.340144] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
[    6.170469] random: systemd: uninitialized urandom read (16 bytes read)
[    6.202663] random: systemd: uninitialized urandom read (16 bytes read)
[    6.213821] systemd[1]: Listening on initctl Compatibility Named Pipe.
[    6.229357] random: systemd: uninitialized urandom read (16 bytes read)
[    6.247806] systemd[1]: Created slice system-getty.slice.
[    6.307065] systemd[1]: Condition check resulted in Journal Audit Socket being skipped.
[    6.323061] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.

Raspbian GNU/Linux 10 raspberrypi ttyS0

raspberrypi login: _